servicing &technology october 1988/$2€¦ · deluxe carrying case ca -92 $9.95 new! scope...

64
The how-to magazine of electronics... AN INTERTEC PUBLICATION Servicing &Technology OCTOBER 1988/$2.50 Servicing VCR servo systems Locating ESD hazards -448414-- ___ SLFBA7t 1 , 3871061287123 G SELF k 978> BANCROFT RD g ':7R OFT 3CTeL GO 1

Upload: others

Post on 14-Oct-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

The how-to magazine of electronics... AN INTERTEC PUBLICATION

Servicing &Technology OCTOBER 1988/$2.50

Servicing VCR servo systems Locating ESD hazards

-448414-- ___ SLFBA7t 1

, 3871061287123

G SELF k 978> BANCROFT RD g ':7R OFT

3CTeL GO 1

Page 2: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Intermittents. We Hear You. Introducing The Heavy -Duty DMM With An Audible

Readout That Lets You Keep Both Eyes On The Job.

Intelligent design and solid construction make the new HD 150 Series the best DMMs in their class.

They're the latest in a distinguished line that began when Beckman Industrial pioneered heavy-duty DMMs with their distinctive yellow color. Many competitors have since imitated that color. As for

imitating their performance, no one comes close.

The HD 150 Series attains new levels of

excellence with a range of advanced features. They're waterproof. Drop proof.

Auto -ranging. Slim -styled for one - hand comfort and convenience. With auto -off to prolong battery life. Plus 2 fuses, PTC resistor and MOV for unsurpassed overload protection.

Audible readout. A "sound" reason to go with the HD 150

Series With this unique feature on the HD 153, you measure parame- ters by listening to a continuous variable tone. As the parameter you measure rises or falls, the tone's frequency increases or decreases,

accordingly. Use it for volts, amps, or ohms. It's

ideal for peaking and nulling, toa

i

TIME

Intermittent alert. A key application of audible readout. The HD 153 pinpoints

intermittents by emitting a "crackling"

sound when they're detected The

response sounds in about 1 msec-far faster than the information appears on

any DMM display.

Logic function. The HD 153 detects Auto -ranging

p TTL or CMOS logic

pulses using stan- dard test leads

Easy to use. The HD 150

Series lets

you read the LCD even at

wide angles. With the large

rotary dial you select functions with one- handed

(right or left) convenience. Auto -

ranging speeds you to the right range.

A tilt -stand and Skyhook let you set or hang the DMM almost anywhere.

Built tough to work hard. The 111) 150

Series DMMs are so tightly sealed against

water and grime that they're guaranteed for five years against contamination. And,

because they're built so tough, they're guaranteed for two years against any damage (except abuse). Crashes, overloads,

moisture, dust... you name it. The HD 150

Series can handle it all!

Listening is believing. For a hands-on demo, see your distributor now. Learn why the HD 150 Series is the soundest DMM value

you'll see. Or hear

Key Specifications

HD 151 HD 152 110 153

Range Lock

Audible readout

Tilt Stand and

Skyhoolem

Logic pulse detector

Optional Optional Included

DC voltage accuracy

10A range

0.7% 0.5% 0.25%

Suggested list price $149.00 $169.00 $199.00

Beckman Industrial 'M

Beckman Industrial Corporation

Instrumentation Products Division

A Subsidiary of Emerson Electric Company

3883 Ruffin Road, San Diego, California 92123-1898

(619) 495-3200 FAX: (619) 268-0172 TLX: 249031

Circle (1) on Reply Card

t Sc:ni'Le n5fitun ts,

Onc. © 1988 Beckman Industrial Corporation Specifications subject to change without notice Calm( is a registered trademark of General Electric Corporation.

Page 3: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Chemswab' "' Freez-It® - 65°F Ultrajet® Dusters IPA Saturated Variable Control Precision Filtered

Foam Swab Tracks Intermittents to < 0.2 Microns

is -717 Flux -Off®

CO2 Propelled No Scrubbing

pft;qet:.. ̂ ,Che -rüfe otkoc

rr _ R-car tl:f ,.. -,iala-aeePor

ChempadT 1

IPA Saturated Cleaning Pad

Konform® UL Listed

UV Detectable

Chem-Wik® Lite Desolders

50% Faster

Gold Guard'" Preserves Precious

Metal Contacts

Twillw43es T"

Textured Cotton Lint Free

Performance you can count on. The electronic service industry's most popular chemicals and cleaning products for over 30 years.

Call or write today for a free catalog, samples or technical assistance.

Chemtronics Chemtronics Inc. 681 Old Willets Path, Hauppauge, NY 11788 800-645-5244 in NY 516-582-3322

Circle (3) on Reply Card

Page 4: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Contents

Page 10

FEATURES 10 A VCR repair case history-

the sequel By Victor Meeldijk If you've been servicing VCRs for long, you probably realize that a great number of VCR problems are mechanical, not electronic 70% of them, according to one repair shop. And one of the worst culprits is the rewind mechanism failure.

18 Servicing VCR servo systems By Stephen J. Miller Servo problems are easy to troubleshoot, right? They never do something like auto-stop before you can make a measurement. If only it were that easy. Try this servo diagostic device-it allows you to troubleshoot faster, easier and more accurately.

42 Prevention special Locating ESD hazards By Dan C. Anderson You might not think a little thing like a spark would have that big an effect on electronics, especially the sparks you can't even feel. It might surprise you to know that if you can feel a spark, it's packing at least a 3,500V punch. Can that

The how-to magazine of electronics...

GIGOTIIOA1O,

EASE ó j Goldst

GHV-12

The complaint with this VCR (see it was shutting itself off. On the test that the capstan was not running durin se yet

theine

unitt ,Would fast -forward or

Page 18

affect electronic components? You

bet-as little as 100V can cause failure in some devices.

46 Prevention special Preventive maintenance: Cleaning supplies for computer maintenance By Gil O'Brien. Computers are going to break down, especially if they aren't given a periodic cleaning. Whether you're doing routine maintenance on someone else's machine or you just want to keep your own up and running, there are certain supplies that can make the job easier for you and safer for the computer.

53 Build your own microwave oven test bottle By Donald P Hopkins If you've got a 1 -quart juice bottle and a couple of NE -2 lamps, you can rig up a quick way to check the radiation pattern inside a microwave oven.

DEPARTMENTS 4 Editorial

6 News

16 Technology The 16Mbit DRAM

17 Test Your Electronics Knowledge

31 Profax

Volume 8, No. 10 October 1988

Page 46

49

50

52

56

58

60

62

64

66

68

Troubleshooting Tips

What Do You Know About Electronics? Thevenin's theorem

Books/Photofact

Products

Feedback

Audio Corner Servicing the compact disc player-Part I

Computer Corner Interfacing computers to the analog world-Part V

Video Corner Elements of video optics-Part III

Readers' Exchange

Advertisers' Index

ON THE COVER All those little moving parts in a VCR may look like alien territory to most electronics servicers. In fact, mechanical problems are the cause of a majority of VCR failures. The two most common problems-dirty heads and rewind mechanism failures-are mechanical problems any VCR servicer should be able to handle. (Concept and design by Barbara Miles, graphic designer.)

2 Electronic Servicing & Technology October 1988

Page 5: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Put them to the test Mini -Meters with Maxi -S ecs

SCOPE 31/2 Digit LCD Meter

05% Accuracy DC Volt-

age AC Voltage DC Cur-

rent Resistance Diode Test Battery Life 300 Hrs.

Overload Protection: DC

500J, AC 350V, ohms 250V

DC/AC

Model $2995 DVM-630

Price Zippered carrying case CC -30 61.50

NEW!

SCOPE 31/2 Digit, LCD 8 Function wl Transistor Tester

0.5% Accuracy Audible

continuity and diode test 10

Amp measurement Resis-

tance DC /AC Voltage.

Model

Oura9.

só DVM-63om2 $4495

Price Zippered carrying case CC -30 $4.50

SCOPE 31/2 Digit LCD wl Autoranging

0.5% Accuracy Auto I Manual range selection

DC Voltage AC Voltage

AC Current DC Current

Resistance.

Special Model $4995 ModelDVM-631e

Our Price

Deluxe carrying case CA -92 $9.95

NEW! SCOPE Frequency Counters

8 -digit LED Compact light- weight Automatic range and Hold function High stability in reference oscillator.

Model FC -7011 $149ss 100 MHz our Price Special Model FC -7051 550 MHz our Prfces19995

B&K Precision 20 MHz Dual Trace

Dual /Single trace operation 1

mV/div sensitivity Auto/Norm triggered sweep operation with AC, NH, TW and Line coupling

Calibrated 18 step time base with 10X magnifier.

Model 2120 Our Price $39995

..

: ó'i7:': n1e'

FORDHAM Frequency

Counter 10 Hz -150 MHz Range 7 -digit

LED display VHF/ HF selection Gate time 1 sec., 5 sec. ±1

count accuracy.

Model FC -150 $13990 Our Price

FORDHAM Sweep Function Generator

Frequency range 0.2 Hz to 2 MHz Sine, triangle, square, pulse TTL, wave forms Frequency accuracy ±5% of length scale

Test leads included.

Model FG -801 Our Price $21995

SCOPE Digital Capacitance Meter

.1 pf to 2000 pf

Digital LCD display LSI- circuit High accuracy: 100 PPM 05% Broad test range Fast sampling time

Capacitor discharge protection Compact, light- weight design One -hand operation.

Model Q5995 DCM-602 VV VMI Our Price

NEW

FORDHAM Function Generator

05 Hz - 500 KHz in 6 ranges Sine, square & triangle wave

forms VCA and VCF inputs Accuracy ±5% of full scale.

Murodel FG -202

$14990 O Price

SCOPE 41/2 Digit Bench Digital Multimeter

41/2 Digit LCD Automatic (-) negative polarity Six 15V "D" size batteries Low battery indica- tion Overload protection Test lead set, batteries, spare fuse incl.

Model DVM-6005 Our Price $21995

SCOPE Digital Mlultimeters Overload protection Auto -decimal LCD readout

Polarity indication 300 hr. 9V battery life

Low battery indicator 5% DC accuracy

8 Functions, 37 Ranges including Transistor and Capacitance measurements

Model DVM-636 Our Price $6759

11 Function, 38 ranges including Logic Level Detector, Audible and Visual Continuity, Capacitance and Conduct- ance measurements

Model DVM-638 Our Price

$8750 CA -92 Deluxe Padded Case for DVM meters 69.95 TL -216 Transistor and Capacitance Test Leads $9.90

FORDHAM Signal Tracer/ Injector

Easy to operate VU meter Two LED mode indicators 1

KHz test tone 8 ohm speaker Test leads.

Model SE -610 $11990 Our Price

Hitachi 35 MHz Dual Trace Oscilloscope

Frequency bandwidth DC to 35 MHz 6 inch CRT with % calibra- tions Autofocus Scale illumina - ton and photographic bezelLght- weight, compact Probes incl.

Model V-355 Our Price $59995

Telephone Orders Now! Mon. -Fri. 8 a.m. - 6:30 p.m. EST Sat. BSun. 9a.m.-3p.m. EST

ASK FOR FREE CATALOG. Money orders, checks accepted. C.O.D: s require 25% deposit

Fordham 260 Motor Parkway, Hauppauge, NY 11788

Free 800-645-9518 In NY State 800-832-1446

FORDHAM LCR Bridge Meter

Fully transistorized 1 KHz signal generator Measures resistance, inductance, cap- acitance High mechanical and electrical stability Battery operated.

Model LC -340 $14995 Our Price

SCOPE Pocket Sized Audio Signal Generator

Sine /square wave patterns 20 Hz to 150 KHz Battery operation Freq.

accuracy ±3% or less Output 1.2V

rms max. (no load) Low battery indicator Test leads/9V battery incl.

Model RC -555 Our Price

$5995

Service & Shipping Charge Schedule Continental U.S.A.

FOR ORDERS $25-50 ss,-,ro :lot -tao $20,300 a-100 $.0,-500 550,750 {!5,1000 s1.001.1 250 5125,1500 5,x0,2000 52.20, and Up

550

nm $8.00 soon MOO 51250 a1S00 5,7x0

53000

Not responsible for typographical errors. Circle (4) on Reply Card

Page 6: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Editorial

What's the problem

with electronics

product design?

The audio system in my Japanese - made car is great. The sound is every- thing you could possibly want in a car audio system. It has AM/FM stereo with station seek, a stereo cassette with auto reverse and automatic program search. Wonderful. And I can preprogram up to five stations on both AM and FM so that, with a touch of a button, I have whatever station I want.

So what's the problem? Well, operat- ing an auto radio has to be a tactile operation. In every other car I've owned, to operate the radio I would just lean over, eyes still on the road, and find the volume control, tuning knob or station preset buttons by touch.

The sound system in my new car is so wonderfully sleek that all the controls but the on/off/volume are electronic push buttons, mounted flush with the surface of the radio. When I reach over to change the station or perform some other opera- tion, keeping my eyes on the road, I get no tactile clues at all. Even worse, if I touch the radio to try to get a clue, I might push one of the station preset but- tons I didn't mean to push. Or the AM/FM selector button. Or one of the station tuning buttons.

So I find myself looking at the radio when I should be concentrating on the road. Unfortunately, the radio isn't real- ly well -designed visually. Oh, it looks great, but no matter how many times I operate it I have to think about what I'm doing and what buttons to push. And as flat and sleek as the instrument panel is, when I'm driving down a normal city street with normal bouncing around, it's hard to get my finger on the right button because there's no place to rest my hand while tuning.

So is the current crop of consumer electronics not well designed? The answer is probably yes and no, depend- ing on your point of view.

Take VCRs, for example. Many peo- ple think they're too complicated-a lot of consumers can't even hook them up. Once they are hooked up, a lot of con- sumers can't take full advantage of their marvelous features. The move toward us- ing bar codes for programming a VCR to record a TV program is being made because thousands-perhaps millions- of people don't know how to operate the programming buttons on their VCRs.

The cry is to keep all the features but simplify the controls so that they're easier to operate and understand. No doubt there's merit in that. On the other hand, the very nature of the operation is that it's complex.

No doubt it's possible for the manufac- turer to design products better in order to simplify some of these operations, but there's no getting around the fact that the more things a product is capable of do- ing, the more complex its operation will be. In the final analysis, then, it's not on- ly that the machine is complicated but that the operating environment is com- plex as well. The machine is simply a reflection of that environment.

Consumer electronics manufacturers probably will be able to simplify the operation of their products-after all, the auto manufacturers did when they invent- ed automatic shift and other automatic controls. Still, when you ask a product to do a lot of things, it necessarily be- comes complex and complex to use, so not all of the blame should be placed on the shoulders of the manufacturers.

But let's not let the manufacturers off too easily. In many cases, they opt for the elegant electronics approach to manufacturing a product, which is not necessarily the best approach for the people who operate it. The "solution" to this problem probably rests with technological evolution. The complaints of consumers will no doubt prompt manufacturers to take steps to reduce the complexity of their products where possible and to consider the user and the conditions of use when engineering to- day's consumer -electronics technological marvels. Consumers also will gradually become more conversant with the in- tricacies of these devices.

In the meantime, servicing technicians are the people in the middle. You're probably going to run into situations where a customer calls you out for a "broken" VCR and you get to explain about the TV/VCR button. And of course, there will be those customers who think you personally designed these "dumb things." All you can do is what servicers always do-hope your next call is for a nice, intermittent TV shutdown problem.

_ 1 1

4 Electronic Servicing & Technology October 1988

Page 7: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

FLUKE AND PHILIPS - THE GLOBAL ALLIANCE IN TEST & MEASUREMENT

FLUKE

How to rescue yourself from a landslide of

microprocessor board failures. Complementing traditional trouble- shooting tools, the Fluke 9010A can help decrease your board repair times by 55-80%.

You've got your oscilloscopes, your logic analyzers and your signature analyzers. But Fluke offers a better way to troubleshoot: the tool you'll reach for most. It's the 9010A Troubleshooter, a versatile board tester that's so easy to use, you can start testing the very first day.

The Fluke 9010A has a proven track record in saving repair time and substantially reducing board float. In fact, it has become the microprocessor repair tool of choice for over 2800 companies worldwide, including the leading computer and electronics manufacturers.

Test the easy way: from the micro- processor socket.

To begin board repair, remove the micro- processor from its socket and insert the interface pod connector in its place. Each

element of the microprocessor kernel (the bus, ROM, RAM and I/O) can be tested with a few simple commands.

Fluke's patented emulation technology offers real time testing and complete vis-

ibility throughout the circuit. This lets you test even the tough problem areas, includ- ing DMA, disk, video, communications and peripheral controllers. All diagnostic mes- sages are presented in simple -to -understand English.

Comprehensive support from Fluke.

The 9010A supports over 50 micro- processors (including 180X, 6502, 680X, 680XX, 803X, 804X, 805X, 808X, 874X, 80X86, 9900, Z80, Z800X, 8751). And it is

backed by Fluke's complete support net-

work, which offers training courses nation- wide on test strategy, basic operation and even µP fundamentals.

PHILIPS PHILIPS

In addition to the 9010A, the leader in emu- lative board test technology also offers the 9100A Digital Test System for a fully auto- mated repair solution; plus the 90 Series, a

compact inexpensive troubleshooting solu- tion for 6809, Z80 and 8085 N,Ps.

To learn how you can escape the land- slide, get your free video brochure "The 9010A µP Board Repair Solution."

Call 1 -800 -44 -FLUKE, EXT. 88 today.

John Fluke Mfg. Co., Inc. P.O. Box C9O9O,

MIS 25OC, Everett, WA 98206. U.S.: 206-356-5400 CANADA: 416-890-7600.

OTHER COUNTRIES: 206356-5500.

© Copyright 1988 John Fluke Mfg. Co., Inc.

All rights reserved. Ad No O181-F9O1O.

JLJ J

LJLJ LIIJ{J IJ uL uuu L+ uul_; ; I 1 LL LUL

I__ _ u LJLJ

The 9010A Microsystems

Troubleshooter

FLUKE Circle (5) on Reply Card

Page 8: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

The how-to magazine of electronics...

News

Tektronix launches seminar schedule Tektronix has announced the

Measurement Application Series, a series of educational seminars designed to introduce test -and -measurement engineers and technicians to new technology and applications. Tektronix has prepared two of the seminars, which will cover the 2445B, 2465B and 2467B analog scopes and the DSO series of portable scopes.

For more information, contact the company at P.O. Box 500, Beaverton, OR 97077; 800 -TEK -WIDE, extension 3028.

Tegam solicits application information

Tegam is looking for information about special applications including the results of using the company's electrical and thermometric test meters. Customers can send two paragraphs describing the application and results, along with a reproducible 35mm photo of the application. If the application is accepted, the customer will be given the choice of a cash amount or a substan- tial percentage off the list price of any unit Tegam manufactures in exchange for the right to use that application.

EIA supports HDTV compatibility The Electronic Industries Association

Committee on Advanced Television (EIA ATV) has agreed that any system adopted for high -definition TV (HDTV) should be compatible with the current NTSC system now in operation in the United States. The committee has also agreed that the NTSC signal received by the home viewer must not be degraded by the HDTV system, and that the tran- sition to HDTV must be smooth in order to protect both consumers' and broad- casters' investments.

Reader's survey predicts sales A recent Better Homes and Gardens

Consumer Panel survey of subscribers found that 12 % of the respondents own a portable video camera but 20% intend to buy one. Among those who intend to buy a portable video camera, 36% plan the purchase within the next year; 64 %

say it will be one to two years from now. The panel is composed of 1,000

subscribers who are demographically representative of the 7.4 million Better

Homes and Gardens magazine subscribers.

EIA/CEG plans HPL demonstration The Electronic Industries Associa-

tion's Consumer Electronics Group (EIA/CEG) Engineering Department and its Standards Committee will demonstrate a new technology, home products link or HPL, in a variety of home appliances. The demonstration will be held in booth number PT -13 at the 1989 Winter Consumer Electronics Show.

HPL is a communications standard developed for home automation. The standard has three aspects: the media, which are the physical carriers of the message; a control language, which will tell the appliance what to do; and an ap- plication language to allow products of different manufacturers to work together.

The 1989 Winter Consumer Elec- tronics Show will be held Jan. 7-10 at the Las Vegas Convention Center and surrounding hotels. For more informa- tion, contact the EIA/CEG at 2001 Eye St. N.W. , Washington, DC 20006; 202-457-4919.

UL proposes standards Underwriters Laboratories (UL) is

proposing two updated standards for recognition as American National Stan- dards by the American National Stan- dards Institute (ANSI). UL 961, the up- dated Standard for Safety for Hobby and Sports Equipment, covers electrically powered hobby and sports equipment rated 25OV or less. These requirements cover equipment intended for the home entertainment and amusement of adults. UL 1283, the updated Standard for Safe- ty for Electromagnetic Interference Fil- ters, covers EMI filters connected to 600V or lower potential circuits, includ- ing facility filters, cord -connected fil- ters, direct plug-in filters and appliance filters used to attenuate unwanted radio - frequency signals generated from elec- tromagnetic sources. UL is seeking re- view and comment to help develop a consensus upon which continued recog- nition of the standards can be based. Contact L.M. Cohen at UL, 333 Pfing- sten Road, Northbrook, IL 60062-2096 (312-272-8800, ext. 2692) for a free copy. 65 v

ELEOTRODjO Servicing &Technology

Electronic Servicing & Technology is the "how-to" magazine for technicians who service consumer electronics equipment. This includes service techni- cians, field service personnel and avid servicing en- thusiasts who repair and maintain audio, video, computer and other consumer electronics equipment.

EDITORIAL

Nils Conrad Persson, Editor Carl Babcoke, Consumer Servicing Consultant Tom Cook, Senior Managing Editor Alisa Carter, Associate Editor Kathy Mickelson, Editorial Assistant James McWard, Editorial Assistant

CONSULTING EDITORS Homer L. Davidson, TV Servicing Consultant Christopher H. Fenton, Circuit Fabrication Consultant Victor Meeldijk, Components Consultant Kirk G. Vistain, Audio Consultant Sam Wilson, Electronics Theory Consultant

ART Kevin Callahan, Creative Director Barbara Miles, Graphic Designer

BUSINESS

Cameron Bishop, Group Vice President Eric Jacobson, Publisher Greg Garrison, Sales Manager Stephanie Hanaway, Promotions Manager Kelly Hawthorne, Promotions Coordinator Dee Unger, Advertising Business Manager Catherine Grave, Advertising Coordinator

ADVERTISING Regional advertising sales offices are listed in

classified pages.

ADMINISTRATION R.J. Hancock, President Doug Reimer, Circulation Vice President Jane J. Powell, Circulation Director Jo Ann DeSmet, Fulfillment Manager Barbara Clare, Reader Correspondent e Member, Audit Bureau

of Circulation

, nP Member, American rn Business Press

Member, Electronic

jNESDA Servicing Dealers Association

CORRESPONDENCE

Editorial, advertising and circulation correspondence should be addressed to: P.O. Box 12901, Overland Park. KS

66212-9981 (a suburb of Kansas City, MO); 913-888-4664. Home office fax: 913-888-7243. Home office telex: 42-4156 INTERTEC OLPK

SUBSCRIPTION PRICES: one year, $19.49; two years, $32.98 in the USA and its possessions. Foreign countries: one year,

$23.49; two years, $36.98. Single copy price: $2.50; back copies, $3.00. Adjustment necessitated by subscription ter- mination to single copy rate. Allow 6 to 8 weeks for new

subscriptions.

PHOTOCOPY RIGHTS: Permission to photocopy for internal or personal use Is granted by intertec Publishing Corp. for libraries and others registered with Copyright Clearance Cen- ter (CCC), provided the base fee of $2 per copy of article Is paid directly to CCC, 21 Congress St., Salem, MA 01970.

Special requests should be addressed to Eric Jacobson, publisher. ISSN 0278-9922 $2.00 + 0.00

Electronic Servicing 8 Technology (ISSN 0278-9922) is pub- lished monthly for $19.49 per year by intertec Publishing Corp., 9221 Ouivira Road, Overland Park, KS 66215. Second- class postage paid at Shawnee Mission, KS and additional mailing offices. POSTMASTER: Send address changes to ELECTRONIC SERVICING & TECHNOLOGY, P.O. Box 12960,

Overland Park, KS 66212.

©1988 All rights reserved. atmac arm

6 Electronic Servicing & Technology October 1988

Page 9: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

SPIKES, SAGS & SURGES

WAVEFORM\tiIT SFIK

SURGE

NOMINAL

You need a tool to identify these disturbances before they cause a problem.

You need our new line disturbance recorder:

SAG

AMPROBE® SPIKE -SAG -SURGE RECORDER

Solid State Circuit Design Easy to use, affordable All 3 disturbances appear on same chart Low Battery Indication

Ranges are 220/440/880V nominal. User adjustable threshold.

Available in well over 100 countries around the world.

if- ` AMPR®BE INSTRUMENT' DIVISION OF CORE INDUSTRIES INC. LYNBROOK, NEW YORK 11563

630 MERRICK ROAD, P.O. BOX 329 Area Cr,de 516-593-5600 TWX; 5102258403 AMPROBE LYBK

ITT TLX 4911416 EASYLINK 62885884 FAX 516.593.5682

MODEL LAS -800 $699.85

Write for Catalog AAD-86 or visit your Amprobe distributor today. Circle (6) on Reply Card

Page 10: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Digital scopes with a nU1 9.0881) t,T =0.0.5 ALM.' 0.212U cU2=0.80U SAUE cU2.0.001.1 f-7----^ *-3- E-; 1--- tttttrtrttttt,_

0.1C 26 SAMPLE 10.s

t,T=163.0.5 oU1.0.212U aT=256.4.5 SAUE AU2.0.08U SAUE

x

JIM. 0.88.1U t,T=358.7.5 oU2 4.8aU SAUE

,e}'tttt

{, 1 I I I rARWA.. ffflArAr!,.....N(NI ILlfI,f U !.((il. r---- X

ley lek 0.1E SAMPLE 18.5 0.1E SAMPLE 10.5

lek ek SAMPLE 10.5

Give up real-time capability for storage? Not with Tek! That's because analog capability is integral to low-cost Tek digital storage oscilloscopes. So you need only one instrument to make all your measure- ments efficiently. With no trade-offs.

It's another Tek advantage: analog and digital in one familiar, affordable package.

Select either mode at the

push of a button. With digital storage you can capture events which

are difficult if not impossible

to see on con- ventional scopes.

Pre and post trigger events. Fast transients.

Copyright e, 1988. Tektronix, Inc. All rights reserved. TAD -903A

Single -shot events. Elusive glitches. Low -speed phenomena.

Four screen photos spliced end to end illustrate the benefit of full four -screen capture using the 2230's 4K record length.

Any waveform can be viewed for as long as you like. Or stored in 4K of memory for later analysis or com- parison to other waveforms. And if

there's a question about a digital measurement, just push a button for real-time display analysis.

Mllt UlIs.IAL ÿl UHA(:L U.=I:ILI_USI;UI't I

Page 11: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

real-time advantage. The affordable portables. These are the world's best-selling dig- ital storage oscilloscopes. And with the new 50 MHz Tek 2210 joining the family, there's now an even better selection -in bandwidth, perform- ance and price.

Select for advanced features such as 100 ns glitch capture at any sweep speed, CRT readout, measurement cursors, multiple acquisition modes and hardcopy output, plus optional GPIB or RS -232C interfaces and software.

These scopes are perfect for first-time digital users. And sea- soned operators will appreciate even more their versatility, con- venience and value. All backed

CURSORS SPIA Y ONNff I áSAYF flFf

,EHFICAL MODE I 801,1 ® 3W IIMIT ADO ALT CIIUP '--. C EZ=J

CH 2 VOLTS/DIV A AND E SET iDIV

- 5 l IIIO

0 10`.

,

Ces lat CAL

-. ACQUISITION --- Halt PR(IRI(; SAYE

CH 1 VOLTS/DIV qoz

r oPL

/1

TORF

S TRIGGER LLV'!

HORIZONTAL)[,, A TRIGGER ( 'U, env

'r"" r I nFsr e ' R I,

ELR

;>

Features

Bandwidth

2230 2221 2220 2210

100 MHz 60 MHz 60 MHz 50 MHz

Max. Sam- pling Speed

20 MS/s 20 MS/s 20 MS/s 20 MS/s

Vertical Resolution

8-12 bits 8-10 bits 8 bits 8 bits

Record Length

4K 4K 4K 4K

Glitch Capture 100 ns 100 ns 100 ns No

CRT Readout/ Cursors

Yes Yes No No

GPIB/RS-232-C Options

Yes Yes Yes No

Warranty 3 -years on labor and parts including CRT

Price $4995 $3995 $2995 $2395

i iarr011a.,L

:.

Each scope offers a range of capabilities you'd expect to find only in much more expensive instruments.

by Tek quality and a 3 -year warranty. Discover the potential. Let Tek

show you what you're missing ...with- out making you give up analog to see it. That's the real-time advantage of Tek digital storage.

For easy ordering or more infor- mation call Tek Direct:

1-800-426-2200 VISA, MasterCard

TéJctronbc COMMITTED TO EXCELLENCE

Circle (7) on Reply Card

Page 12: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

A VCR repair case history the sequel By Victor Meeldijk

Becoming an electronics servicer doesn't necessarily mean you can forget about mechanics, especially when your field of expertise is VCR servicing. A typical New York city repair shop estimates that 70% of all VCR repairs involve mechanical problems. The most common problem is dirty heads. (For more information on cleaning VCRs, see "Maintenance and Cleaning of VCRs" in the May 1987 issue of ES&T.) The second most common VCR prob- lem, according to the Electronic In- dustries Association (EIA), is rewind mechanism failures.

Meeldijk is the reliability/maintainability engineering manager at Diagnostic/Retrieval Systems.

The first VCR -repair case history, which appeared in the February 1988 issue, analyzed a fast -forward and re- wind (FF/R) problem on a Fisher model FVH-510. This time, we'll take a look at a 2 -year -old Fisher model FVH-839 with similar problems.

Another FF/R problem As was the case in the first article, this

VCR didn't fast -forward or rewind prop- erly. When FF/R modes were selected, it would take a few seconds for the tape to actually start moving, and the VCR eventually would not move tape at all. Then, after a few attempts at trying to rewind tape, the VCR would not start up. When the rewind mode was selected, the motor would start, then stop as if it had stalled out. Cue and review functions continued to work normally.

Figure 1 is a top view of the tape - transport mechanism showing the tape reels (Fisher part number 143-0-4104-00900, supply; and 143-0-4104-01100, take-up reel), gear idler (143-0-4904-00900) and idler spring (143-2-6604-04500). FF/R prob- lems generally are caused by the idler tire, but if the idler spring has come loose, the same symptoms will occur. Cue and review functions continue to work because the reels are directly driven by a gear in the idler assembly rather than the idler tire.

To watch the motion of the reels and finger test the reel torque, you can fool the VCR into thinking a tape cassette has been inserted into the machine. First, unplug the VCR, take out the two screws on the left and right sides of the cover and, from the rear, lift the cover off the VCR. Next, place a piece of tubing or part of a multiwire coax cable jacket over the tape sensor. (See Figure 2.) Then, with the power on, press up on the levers on the top left and right sides of the cassette tape tray until the tray starts moving (use forefingers to push the levers and thumbs to push the tray).

10 Electronic Servicing & Technology October 1988

Page 13: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Figure 3 shows the levers when the tray is in the lowered position. An alternate method is to insert a cassette but hold on to it so it is not pulled into the VCR as the tray lowers.

As soon as the tray is down, press down on the cassette sensor switch near the take-up reel. (See Figure 4.) If this is not done immediately, the tray will automatically return to the upper loading position. While depressing the cassette sensor switch, which will light the cassette picture on the loading door, press either the FF or R buttons to observe reel movement. If they are mov- ing, you can test the torque by trying to slow down their movement with your forgers. If they stall easily, there will not be enough torque to move the cassette tape.

To return the tray to the up position, press down the cassette sensor switch and hit the eject button-quickly move your fingers out of the way after you hit the eject button.

If the rewind -stalling symptom is not immediately present, it is because the master cam has reset after the machine has been disconnected from the ac power. Running the VCR in the rewind mode when the tape does not move will cause the mode -select and master cam to move out of sync. When this happens, the recorder sounds and acts as if it is stalling in the rewind mode. When ac power is cycled off and on (using the power plug), the clicking noises heard when the VCR is plugged in is the transport mechanism resetting itself.

Once it has been verified that the idler tire has to be replaced, follow the disassembly steps in the sidebar. Unlike other VCRs, the idler assembly is mounted to the underside of the chassis, and the disassembly steps to reach it are lengthy. The disassembly steps listed in the table, however, do not follow those contained in the Fisher service manual. In the service manual, the idler/idler gear is removed after the capstan motor is removed. Reassembly involves align -

Figure 1. In this top view of the tape -transport mechanism, the idler is just visible underneath the chassis.

Figure 2. You can cover the tape sensor with a piece of cable jacket.

Figure 3. This photo shows the levers when the tray is in the lowered position.

October 1988 Electronic Servicing & Technology 11

Page 14: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

ing the master cam and tension arm. Using the steps outlined in this article, you can avoid removing the capstan motor and making other alignments. When the old idler tire is removed, you will note that it has a smooth and shiny appearance. The new tire, on the other

Figure 4. The cassette sensor switch is located near the take-up reel.

Figure 5. The capstan motor and idler com- plete assembly are visible from the underside of the VCR.

hand, is dull and has a rough surface texture.

Temporary repairs Before replacing the idler tire, I at-

tempted a number of alternative repair methods. First I used a rubber

Figure 6. Move the harness wires out of the notch in the plastic reel assembly bracket.

Figure 8. Two tabs secure the plastic bracket to the chassis.

revitalizer, although they are not nor- mally advertised for this purpose. After treatment, some initial tape slippage oc- curred (as evidenced by a slow -moving tape -footage counter), but then the VCR started to operate normally. However, this "fix" only lasted one day. The treat-

-41/27 .

A4.64, V) er4g4,t

t, \ \

G

4141

Figure 7. Remove the Phillips screw holding down the plastic reel assembly bracket.

Figure 9. To move the gear into an area where it can clear the chassis, turn the idler gear assembly to the left.

12 Electronic Servicing & Technology October 1988

Page 15: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

FLUKE AND PHILIPS - THE GLOBAL ALLIANCE IN TEST & MEASUREMENT

FLUKE PHILIPS PHILIPS

Introducing a whole new way to look at oscilloscopes. Operation that's instinctively, unbe- lievably clear. Information that's detailed, yet free of errors. And intel- ligence that will speed your work. Philips' micro -computer controlled medium -frequency Smart Series. They could change forever the way you look at oscilloscopes.

HIGH PERFORMANCE WITH A VIEW

LCD window. Large digital indications note

all selected functions, instrument settings

and parameter values. Instantly. Precisely.

With no mistakes. And right where you

need them-next to the CRT. Not hidden

in crowded frontpanels. Not wasting critical

waveform display area. It's a revolutionary

idea that facilitates the use of an oscillo-

scope like nothing else. And it's only from

Philips. Once again.

16kV CRT. Higher acceleration voltage

and advanced electron optics assure bril-

liance and spot quality that outshines any-

thing else in this class.

Pushbutton simplicity. Quick, one -function

buttons have replaced knobs for faster,

surer, more reliable operation.

Instant -action AUTOSET. Philips' intelligent

beamfinder automatically selects channel,

amplitude, timebase and triggering for

error -free display of any input signal. Great

for troubleshooting!

"Clever" cursors and delayed sweep. Stan-

dard on the PM 3070, "clever" cursors supply immediate amplitude and timing

measurements with direct CRT readout.

And an exclusive cursor -operated ZOOM

function offers the most efficient use of

delayed sweep available in analog scopes.

Auto -Triggering intelligence. Provides fast,

stable triggering up to 150 MHz.

Probefactor compensation in LCD. It auto-

matically adjusts all readouts for the probe

you're using.

IEEE compatibility. For fast computer hook-

up and automated production test and

calibration.

Choice of four models: Single and dual

timebase; 60 or 100 MHz bandwidths.

SUPPORTING VIEW

Philips' medium -frequency instruments

come with a 3 -year warranty, a 30 -day

money -back guarantee and all the tech -

Circle (8) on Reply Card

nical and service assistance you need.

From Fluke-the people who believe that

extraordinary technology deserves extra-

ordinary support.

POINT OF VIEW

Call Fluke today at 800 -44 -FLUKE ext. 77. And find out how easy it is to

change the way you look at oscilloscopes.

Ask for your free copy of our new guidebook,

Basic Principles of Oscilloscopes.

John Fluke Mtg. Co., Inc., P.O. Box C9090, MIS 250C.

Everett, WA 98206 U.S.: 206-356-5400 CANADA: 416-890-7600

OTHER COUNTRIES: 206-356-5500

© Copyright 1988 John Fluke Mfg. Co.. Inc.

All rights reserved. Ad No. 0481-P3065170

SMART SERIES OSCILLOSCOPES 60 &130 MHz

'FLUKE'

Page 16: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

1. Disconnect power from the VCR and remove the top cover. (Remove the two screws on each side of the unit, then lift the cover up from the rear.)

2. Remove the idler spring (Fisher P/N 143-2-6604-0450).

3. Lift off the stopper washer (143-2-6304-01800) that secures the take- up reel.

4. Holding onto the take-up reel sub - brake take-up assembly, slowly lift the reel out of the VCR. Be careful not to loosen the washer (143-2-6304-02900 or 0300 or 03100, depending upon ad- justments made to the VCR) just under the reel. Slowly release the brake assembly so the spring (143-2-6604- 04300) doesn't fly loose. Note: the VCR uses a Hall -effect sensor and magnets embedded in the reel to send signals to the tape -footage counter.

5. Put the cover back on but do not screw it in place. Turn the VCR over and remove the screws securing the bottom cover. Lift the cover off from the front of the VCR.

VCR disassembly steps

6. With the cover removed, you can see the capstan motor and gear (idler com- plete) assembly (143-2-7504-00400 or 00600, depending upon the VCR). Refer to Figure 5. Remove the drive belt and work the harness wires out of the notch in the plastic reel assembly bracket. (See Figure 6.)

7. Shift the wire harness to expose the Phillips screw holding down the bracket. Use a number 2 screwdriver to remove it. (See Figure 7.)

8. Look for two tabs that secure the plastic bracket to the chassis. Figure 8 shows the left -side tab. Press in on the tab and lift the bracket until the tab clears the chassis. You cannot take out the plastic bracket because of the wire harness.

9. Remove the stopper washer (143-2-630401500) holding the idler gear assembly (143-2-6304-00600) and turn the assembly to the left to move the gear into an area where it can clear the chassis. Lift the assembly out of the VCR (refer to Figure 9). As with the reel assembly, be careful not to lose the

washer under the idler gear assembly (refer to Figure 10).

10. Remove the stopper washer (143-2-630401500) holding the idler (complete -143-0-4904-00900). Turn the idler wheel to the left, which will free it from the chassis, and lift it out of the VCR. With the idler wheel out of the machine, the tire can be removed and replaced. Replacement tire dimensions are 0.985 OD, 0.885 ID and 0.120 thick. Complete idler assemblies can also be purchased from various repair -part com- panies, if necessary.

11. To reassemble the VCR, follow the disassembly steps in reverse order. When replacing the idler wheel on the shaft, make sure that the gear is to the left and that the left arm of the "wishbone" is on the left side of the metal (brass) attached to the idler arm control. (See Figure 5.) It is also recommended that you grease the idler and reel shafts during reassembly.

Figure 10. Be careful not to lose the washer under the idler gear assembly.

ment was repeated with the same results; after the tire dries out, slippage starts again.

For the second repair, I used an O- ring from a faucet repair kit. The O-ring was, however, a little too small; this problem, coupled with the ring's smooth surface, made it an unworkable substitute. Next, I tried cutting a rub- ber grommet to size using a hobby knife. This tire worked for a few FF/R cycles, but it proved to be too soft and disintegrated, leaving residue on the idler. A neoprene hose washer worked much better and would be an excellent temporary substitute except that it is almost impossible to cut the inside of the washer perfectly round. Although the washer works, the cassette tape is unevenly packed onto the reel. It does not appear at this point that there is an acceptable substitute for a properly manufactured idler tire. ESF

14 Electronic Servicing & Technology October 1988

Page 17: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Now electronics technicians can get into VCR Servicing quickly and easily

Learn professional VCR servicing at home or in your shop

with exclusive videotaped demonstrations

Today, there are more than 10 million VCRs in use, with people standing in line to have them serviced. You can bring this profitable business into your shop with NRI professional training in VCR servicing. This top-level training supports the industry's claim that the best technicians today are those who service VCRs.

Integrated Three -Way Self -Teaching Program In one integrated program, NRI

gives you a study guide, 9 instructional units, 2 hours of video training tapes accompanied by a 32 -page workbook that pulls it all together. At home or in your shop, you'll cover all the basic concepts of video recording, mechani- cal and electronic systems analyses, and the latest troubleshooting tech- niques. Your workbook and instruction- al units also contain an abundance of diagrams, data, and supplementary material that makes them valuable addi- tions to your servicing library.

The "How -To" Videotape Your NRI Action Videocassette uses

every modern communications tech- nique to make learning fast and easy. You'll enjoy expert lectures and see animation and video graphics that make every point crystal-clear. You'll follow the camera eye into the heart of the VCR as step-by-step servicing tech- niques are shown. Both electronic and mechanical troubleshooting are covered

. including everything from com- plete replacement and adjustment of the recording heads to diagnosing micro- processor control faults.

Plus Training On All The New Video Systems

Although your course concentrates on VCRs covering Beta, VHS, and 3/4'

U-Matic commercial VCRs, NRI also brings you up to speed in other key areas. You'll get training in capacitance and optical video disc players, projec- tion TV, and video cameras. All are in- cluded to make you the complete video technician. There's even an optional final examination for NRI's VCR Pro- fessional Certificate.

Covers Beta and VHS systems with actual

instruction on

The Best Professional Training

This exclusive self -study course has been developed by the professionals at NRI. NRI has trained more television technicians than any other electronics school! In fact, NRI has consistently led the way in developing troubleshoot- ing techniques for servicing virtually every piece of home entertainment equipment as it appears in the market- place.

Satisfaction Guaranteed ...15 -Day No -Risk

Examination Send today for the new NRI Self -

Study Course in VCR Servicing for

V I Get me started in profitable 1 VCR servicing. Rush me my

NRI self -study course in VCR Servicing for

Professionals. I understand I may return it for

a full refund within 15 days if not completely

satisfied.

PLEASE SPECIFY TAPE FORMAT DESIRED VHS

Name (please print)

Company

Street

City/State/Zip

Enclosed is my check money order for $179.95 (D.C. residents add 6% tax) Make check payable to NRI

Charge to VISA MasterCard

videotape.

Professionals. Examine it for 15 full days, look over the lessons, sample the videotape. If you're not fully satisfied that this is the kind of training you and your people need to get into the profit- able VCR servicing business, return it for a prompt and full refund, including postage. Act now, and start adding new business to your business.

Special Introductory Offer This complete VCR training course

with two hour videotape is being offered for a limited time only, on orders received from this ad, at our low introductory price of $179.95. Save $20 by acting now! NRI Training For Professionals McGraw-Hill Continuing Education Center

3939 Wisconsin Avenue Washing2, DC 20016

RNRI Training For Professionals McGraw-Hill Continuing

rI Education Center

3939 Wisconsin Avenue

ri i Washington, DC 20016

BETA

Interbank Number

Card Number Expiration Date

Signature

(required for credit card sales) 2630-108

October 1988 Electronic Servicing & Technology 15

Page 18: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Technology

The I6Mbît DRAM

Recent advances in memory - chip design have resulted in vast improvements in memory capaci- ty within this decade. For exam- ple, at the beginning of the 1980s, mainstream memory capacity was 64kbits. Today, however, lMbit capacity -16 times the capacity of 64K-is dominant in the market, and 4Mbit capacity should be- come available in the near future.

Even higher capacity chips eventually should be available. In fact, Toshiba has already devel- oped an experimental 16Mbit dynamic random access memory (DRAM) chip. The device can memorize more than 2 million alphanumeric characters, which would allow the contents of the New York Times newspaper (about 64 pages) to be stored on a 12mmx17.5mm chip.

The experimental device integrates about 34 million elements (transistors and capacitors) on a single chip. Its ac- cess time (the time required to read one bit of information) is typically 7Ons-70 billionths of a second. Toshiba applied 0.7 -micron microlithographic tech- nology to the new device, compared with 0.8 -micron rule, which will be used in the company's 4Mbit DRAM.

:::>: 2nd -LAYER ALUMI UM

Figure 1. The 16Mbit DRAM uses a stacked trench capacitor cell structure to eliminate the electric leakage between capacitors. The polysilicon layer on the side walls of the trench allows impurities to be diffused thinly and evenly.

A new structure of basic elements In order to reduce the chip size and

increase its reliability, Toshiba research- ers developed a new structure of memory cell (a basic element to memorize one bit of information) called a stacked trench capacitor cell (STT). This structure eliminates the electric

leakage between capacitors, which will cause errors in stored information. In the case of the 16Mbit DRAM, the distance between the adjacent capacitors, in which information is stored in the form of electric charges, is much narrower than that of the 4Mbit DRAM because of its higher integra- tion. Therefore, it was difficult to avoid the electric leakage.

Although the trench structure was developed for the 4Mbit DRAM, the 16Mbit DRAM also has a polysilicon layer on the side walls of the trench, through which the doping of impurities is carried out. With the polysilicon layer, impurities can be diffused thinly and evenly, possibly eliminating the leak current.

In addition to random access capabilities, the newly developed chip has a high-speed serial - access mode that makes possible quick writing and reading of serial information.

With conventional random- access operation, a microproces- sor freely assigns an address to every bit of information stored in the chip, and each address must be designated again when the in- formation is read. A designated address must be cleared each time before another bit is read. This process is too slow for reading serial information such as TV pic- ture signals and sound signals.

The serial -access mode of the new device divides the memory area into two sections and auto- matically stores serial information (of up to 2,048 bits) by every four

bits on each section alternately. Only the first bit of information requires an ad- dress. Consequently, the mode takes on- ly lOns to write and read serial infor- mation. At present, the most advanced commercially available memory chips, specialized for handling serial informa- tion and applied to VCRs, take a minimum of 3Ons to perform the same task.

Because of the large memory capaci- ty and its quick write/read capabilities for serial information, the 16Mbit DRAM could be used for future high - definition TVs or other high-speed im- age/graphic processing systems. However, the new chip will take several more years for completion and application. OSV vv

16 Electronic Servicing & Technology October 1988

Page 19: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Test your electronics knowledge

By Sam Wilson, CET

1. Is the following statement correct? "When an electric current flows through a resistor, the amount of heat generated is in accordance with Watt's law." A. Correct B . Incorrect

2. Which of the following is an ad- vantage of a Kelvin bridge over a

Wheatstone bridge? A. A Kelvin bridge can be used over a wider range of temperatures. B. The lead resistance of the compo- nent being measured is balanced out with the Kelvin bridge.

3. What is the advantage of an elec- trostatic voltmeter over a digital volt- meter being used with a high -voltage probe?

4. Name two components that can be used to make a parametric amplifier.

5. The voltage across the resistor in Figure A is A. maximum at resonance. B . minimum at resonance.

6. The voltage across the resistor in Figure B is A. maximum at resonance. B . minimum at resonance.

7. The tall antenna that you see at an AM broadcast station is an example of a A. Hertz antenna. B. Marconi Antenna.

8. On a certain TV receiver, some of the stations are received with poor

color but the other stations have good color. Investigate A. the color killer. B . the antenna system C . the offending TV stations.

9. Mobile telephone service started in A. 1940. B . 1960. C . 1976.

D. 1982.

10. In the phase -locked loop system in Figure C, the frequency at the VCO output is A. 6,250kHz. B . 1,250kHz.

Wilson is the electronics theory consultant for ES&T.

\//'\./ FIGURE A

L

221

FIGURE B

/\/\1\i' fl

IC( 1 1

1,250kHz

PHASE DETECTOR

0

=5

VCO

DIVIDE BY 5

FIGURE C

LOW-PASS FILTER

AMPLIFIER

VCO OUTPUT

Answers are on page 59

October 1988 Electronic Servicing & Technology 17

Page 20: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Servicing VCR servo systems By Stephen J. Miller

When was the last time a VCR servo problem drove you up the wall? Does it seem like just yesterday? No surprise-servo problems can be dif- ficult to troubleshoot for a variety of reasons. Often the motor involved will either refuse to run at all or will run ex- tremely fast. These conditions often will cause the unit to auto-stop before measurements can be made. Also, because servo circuits are loop circuits with the outputs feeding back or con- trolling the inputs, all servo voltages and waveforms often will be incorrect in defective equipment.

In short, when they are broken, servos can be dogs to troubleshoot. For- tunately, a method is available to speed up your troubleshooting. With a device that I have built, and that is described

Miller is a senior bench technician for a Lancaster, PA, repair company.

in this article, dubbed the servo diagnostic device, you can break the vicious loops, manually control the cir- cuit, and quickly find the defective com- ponents. The use of the device for ser- vo servicing has two main advantages. First, inserting the device allows the technician to split the circuit in half for a quick determination of the problem's location. If the problem is in the motor section, replacement is usually indicated because these motors often are only available as a complete assembly. The second advantage is that, by manually controlling the motor with the diagnostic device, you can monitor various servo signals under actual operating conditions.

How servos work Before getting into the device, let's

review how servo circuits operate. Videotape technology requires the

motors to be precisely speed- and phase - controlled in order to reproduce good video and audio. Should the drum motor's speed or phase be incorrect, the audio will be OK but the picture will be out of sync. If the capstan speed is wrong, both an out -of -sync picture and garbled, off -pitch audio will result. Problems with the capstan phase usually won't hurt the audio, but either a snow bar will float through the picture (EP mode) or an alternating display of a clear picture and a snow field will result (SP mode). The snow bars or fields are caused by the video heads wandering in- to either the wrong azimuth track or a guard band.

Figure 1 is a simplified block diagram of the capstan servo. Two separate types of motor control are used: speed con- trol and phase control. The speed - control circuit compares the speed of the capstan motor to a reference frequency

FG HEAD

CTL HEAD

VERTICAL SYNC

CTL PULSE

GENERATOR

REC

AMP -x

Y

FRONT- PANEL

TRACKING CONTROL

REFERENCE SIGNAL FROM

MASTER CLOCK

SPEED COMPARATOR

PWM

PHASE COMPARATOR

PWM

PB

INTEGRATOR

MATRIX

INTEGRATOR

30Hz FROM MASTER CLOCK

REC

AMP

MOTOR CONTROL VOLTAGE

Figure 1. A simplified block diagram of the capstan servo. Two separate types of motor control are used: speed control and phase control. The speed -control circuit compares the speed of the capstan motor to a reference frequency and adjusts the motor speed until they are exactly alike. The phase -control circuit performs a similar task, but it is concerned with the motor phase.

18 Electronic Servicing & Technology October 1988

Page 21: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

and adjusts the motor speed until they are exactly alike. The phase -control cir- cuit performs a similar task, but it is concerned with the motor phase. Motor speed and phase are interdependent quantities, so it is useful to consider speed control as a coarse adjustment and phase control as a fine adjustment of the motor's rotation.

A pick-up coil placed near the edge of the capstan flywheel gives a relative indication of motor speed. This coil, commonly referred to as the frequency generator or FG head, generates pulses as a series of magnets embedded in the flywheel are moved past it. The fre- quency of these pulses directly indicates the motor speed-the faster the motor turns, the higher the FG frequency will be.

Referring back to the block diagram, this FG signal is amplified and then sent to a variable -frequency division block before being applied to the speed - comparison block. This variable - frequency division block is regulated by the system -control section of the VCR. The division rate is changed depending on what speed the unit is in (SP, LP or EP) or for special effects such as speed search. Dividing -down the FG signal allows the reference signal to the speed - control block to be kept constant while still allowing the VCR to speed -control a number of different tape -transfer rates.

The speed -comparison block com- pares the divided -down FG signal with a reference signal. It then outputs a signal proportional to the error that ex- ists between the two inputs. This error signal is an ac waveform called a pulse - width modulated or PWM signal. In a PWM system, the magnitude of the er- ror signal is proportional to the width of the ac pulses. The frequency of the PWM signal never changes; only the width of the pulses is varied in response to errors. If both inputs to the com- parison block are identical, the PWM output is a 50%-50% duty -cycle waveform. Should an error exist, the comparison circuit will vary the duty cy- cle in response to that error.

The integrator block, sometimes called a low-pass filter, integrates or

PANAVISE PRODUCTS FOR

TODAY'S TECHNOLOGIES For over 30 years, PanaVise has made work holding devices for a variety

of industries. Our newest line is created specifically for the electronics

professional! PanaVise experience and made -in -USA quality ensure years

of reliable, long-lasting service.

STANDARD PANAVISE: The orig- inal "tilt it, turn it, hold it anywhere you want it" vise with the patented split ball. A single control knob lets

you position work in three planes- without removing it from the unit! Opens to 2'/a ;' and comes standard with tough, yet gentle nylon jaws for improved grip. Steel, brass, Teflon®

and grooved nylon accessory jaws sold separately. Model #301. Sug-

gested retail $33.95.

IDC BENCH ASSEMBLY PRESS: l'or low volume mass termination of IDC connectors on flat (ribbon) cable.

choose this quick, economical 'A ton manual IDC Assembly Press. Select interchangeable base plates for female socket transition connectors, card edge connectors, standard DIP plugs,

D -Subs, etc. Ribbon cable and strip header (IDC) cutters also available. Perfect for short run production, R&D centers, MRO's and service tech- nicians. Model #505. Suggested retail $139.95.

MULTI -PURPOSE WORK CEN- TER: Self -Centering Extra Wide Opening Head (opens to 9") is com- bined with our famous "split ball" Standard Base to create a versatile work station. Reversible (serrated or "V" -groove) neoprene jaw pads gently hold a variety of round or difficult to hold items with ease! Convenient Tray Base Mount (with parts wells) completes the package. Model #350. Suggested retail $52.95.

CIRCUIT BOARD HOLDER: Eight -

position rotation, tilt -angle and height adjustments plus six positive -lock positions in the vertical plane mean convenience and versatility! Spring - loaded arm holds circuit boards se-

curely, but allows quick, easy removal and replacement. Perfect for compo- nent insertion and soldering: a must for maximum work efficiency. Model #333. Suggested retail $49.95.

FJPbüt=__ a

See your local electronic equipment supplier or contact PanaVise

for the source nearest you. PanaVise Products, Inc.; 2850 E. 29th Street;

Long Beach, CA 90806; (213) 595-7621.

Circle (9) on Reply Card

October 1988 Electronic Servicing & Technology 19

Page 22: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

averages the PWM signal into a dc voltage. This dc voltage represents the magnitude of the error signal. Figure 2 shows three PWM waveforms: (a) the motor turning too slow, (b) the motor turning exactly on speed, and (c) the motor turning too fast. By finding the average of the pulse trains, we can see that the dc output voltage would be 25% of the peak voltage for the first case, 50 % of the peak for the second case, and 75 % of the peak for the third case. In a properly operating VCR, this dc output voltage will be centered around 50% of peak with momentary rises and falls to correct for errors.

The next block matrixes together the dc speed -error voltage with a dc phase - error voltage. This combined error voltage is amplified and then sent to the motor as a control voltage to vary the motor speed and phase.

The phase -control circuits In the playback mode, the phase -

control circuit compares a pulse from the tracking monostable multivibrator (MMV) with the pulse coming from the control or CTL head. This CTL pulse is used in playback to phase -control the capstan so that the proper video head is centered on the correct track at all times. The tracking MMV is keyed by a pulse from the drum motor called a drum PG pulse. This keying signal syn- chronizes the two servos. Varying the front -panel tracking control advances or delays slightly the tracking MMV pulse to allow the viewer to adjust the servos slightly for a snow -free picture. After the phase -control PWM is integrated, it is applied to the matrix circuit previous- ly described.

Because of the importance of a good CTL pulse for proper servo operation, cleaning the CTL head should be the first troubleshooting step for capstan phase -control or speed -selection problems.

Phase -control PWM outputs are com- monly set to a default 50%-50% duty cycle. After the speed loop locks onto the proper speed, the phase loop is allowed to vary from the default setting. This arrangement keeps the phase loop from interfering with the speed loop's attempt to correct a speed error. Therefore, it is common to find 50%-50% duty -cycle waveforms on the phase PWM output terminals whenever the speed loop is not locked, even in the stop mode. This arrangement is normal and does not indicate a problem.

In the record mode, the phase -control PWM block receives both a divided - down sample of the FG signal and a 30Hz reference signal from the master clock. Therefore, in record, the capstan servo phase -adjusts the capstan motor to a 30Hz reference signal. Also, ver- tical sync pulses are used to key a CTL pulse -generator circuit to record a CTL pulse train on the bottom edge of the tape during record.

The drum servo The drum -servo block diagram is

shown in Figure 3. Because the drum motor turns at a constant speed regardless of the tape speed, the drum servo is much simpler than the capstan servo. In the speed -control loop, an FG head is used to develop a signal that is proportional to motor speed. The FG signal is fed to a speed -control PWM and then to an integrator in the same manner in which the CTL pulse is fed to the capstan servo.

The drum phase -control loop uses a drum -phase generator or PG head to produce a signal that indicates drum phase. PG pulses are generated by either a PG head and a pair of magnets mounted on the rotor or by Hall -effect elements in the motor. PG pulses are 30Hz in frequency.

Thus each pulse represents one revolution of the motor. These pulses

are amplified and then sent to the PG monostable multivibrator (PG MMV) block. In the PG MMV block, the PG pulses are used to trigger a monostable multivibrator whose duty cycles are ad- justable. The output of the PG MMV is used both for drum -phase control and as a head -switching signal.

The on- and off -time duty cycles of the PG MMV are adjusted so that head switching occurs at 6.5 horizontal lines before vertical sync. This adjustment en- sures that the critical vertical sync in- terval is free of switching noise, yet the switching point is low enough on the screen to be hidden in the overscan of the CRT.

In the playback mode, the phase - control PWM receives the PG MMV signal and a 30Hz reference signal from the master clock. It outputs a PWM signal in accordance with the phase rela- tionship of these two inputs. In the record mode, the two inputs are the PG MMV and a specially shaped vertical sync pulse. In record, then, the drum - phase loop locks the drum -motor phase to the same phase as the vertical sync in the signal being recorded.

Servicing older VCRs Older VCRs have similar servo cir-

cuits except for the control blocks. In- stead of PWM outputs, the older servos used sample -and -hold circuits that pro- vided a dc output. Figure 4 provides an example of a sample -and -hold com- parator. One input to the comparator is either a ramp or a trapezoidal waveform. The other is a narrow sampling pulse. The dc output of this comparator is equal to the instantaneous dc voltage of the ramp waveform at the moment the sampling pulse occurs. In normal opera- tion, the sampling pulse arrives at the approximate mid -point of the ramp. Therefore, if the two inputs drift out of phase, the sampling point will walk either up or down the ramp, causing a

Figure 2. The integrator block, sometimes called a low-pass filter, integrates or averages the PWM signal into a dc voltage. This dc voltage represents the magnitude of the error signal. This figure shows three PWM waveforms: (a) the motor turning too slow, (b) the motor turning exactly on speed, and (c) the motor turning too fast.

20 Electronic Servicing & Technology October 1988

Page 23: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

PG HEAD

FG HEAD

AMP

HEAD SWITCHING

SIGNAL TO HEAD AMP

AMP

PG SHIFTER CONTROL

PG MMV

VERTICAL SYNC

AMP

REFERENCE SIGNAL FROM

MASTER CLOCK

SPEED COMPARATOR

PWM

PHASE COMPARATOR

PWM

PULSE SHAPER

PB

REG \

INTEGRATOR

MATRIX

INTEGRATOR

30Hz REFERENCE

FROM MASTER CLOCK

AMP

MOTOR CONTROL VOLTAGE

Figure 3. The drum -servo block diagram. Because the drum motor turns at a constant speed regardless of the tape speed, the drum servo is much simpler than the capstan servo.

Training Packages starting -^- from lust $49.95, Training

Videotapes from $29.95

We have the information .. .

... that gives you the knowledge!

Matsushita Services Company TAS/Publications 2B-6

50 Meadowland Parkway Secaucus, N.J. 07094

Quality Training Materials for... Panasonic. Technics Qu sate

it_..__ E`°' Discover just how rewarding

technical training can be with genuine Matsushita Training Products. Our growing library of Training Manuals and Videotapes, Service Bulletin Manuals, Troubleshooting Guides, and Programs are valuable tools to increase shop productivity and boost profits.

Our latest catalog features our full line of quality Training Materials. Write for your free copy today!

Matsushita 2 Services Company Division of Matsushita Electric Corporation of America

Circle (10) on Reply Card

October 1988 Electronic Servicing & Technology 21

Page 24: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

No matter what specific electronic part or supplies you're looking for the one thing you're always looking for is value. And no one else delivers it like Philips ECG. From replacement semiconductors to multimeters to audio/video test cassettes, we've got the quality you're looking for the selection you're looking for, the value you're looking for. So if you've been hunting for a name you can trust you're on the right track now. Philips ECG: the smartest choice you can make in electronic parts and supplies.

Intelligent Power Controller With Surge

Suppression- MF `FMK MMER .CM.Ia No smarter buy.

Philips ECG's unique EMF-515MC Intelligent Power Controller has one Master outlet and four electroni- tally controlled Auxiliary

outlets. It senses when something plugged into the Master outlet is turned ON and responds by turning ON power to the Auxiliary outlets. Equipment that is plugged into the EMF-515MC is also protected from transient voltage spikes on the power line three ways: hot to neutral, hot to ground and neutral to ground.

Circle (11) on Reply Card

The DM -300 Multimeter puts it all in the palm of your hand. Most multimeters' accuracy stops at 0.5%. Not the ECG DM -300! This little dynamo delivers 0.25% accuracy! The ECG DM -300 also

has a transistor test, diode and conti- nuity tests and is overload protected. These features and 0.25% accuracy make the DM -300 almost unbeatable!

Circle (12) on Reply Card

Thett is choice

Cable converters

bring in the signal loud

and clear. Philips ECG's cable converters adapt to any TV set and receive up to 139 VHF, UHF and cable stations. They are available with volume control, separate audio and video outputs for connection to stereo and VCR systems to bring it all to you loud and clear! No matter what type of TV, Philips ECG has the converter for you.

Circle (13) on Reply Card

The One Source for all Your Semiconductor Needs. In the confusing world of electronic replace-

ment parts, there's only one name you have to remember for all your semiconductor needs. Philips ECG. With nearly 4000 semiconductors that replace over 240,000 industry types, Philips ECG is your one source. Philips ECG's high -quality semi- conductors meet most entertainment and industrial/commercial MRO replacement needs, enabling you to stock fewer parts. All of which saves you time, space and money!

Circle (14) on Reply Card

Page 25: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

no smarter Philips EGG.

Philips ECG Chemical Products keep your Equipment up and running! Regular maintenance is the key to maximizing the operating efficiency of all electronic equipment. Philips ECG offers a wide assortment of High Technology Chemicals that will assure optimum equipment perfor- mance. The line includes heavy duty flux remover, all-purpose degreaser, high -purity circuit refrigerant, a gen- eral contact cleaner and a superior spray lubricant. All are available in convenient aerosol cans or in various sizes. And all are from Philips ECG, the industry leader! Circle (17) on Reply Card

Philips ECG Time Delay Relays deliver accuracy, versatility and value. Philips ECG time delay relays are available in several time and ampere versions for optimum versatility. Series 40 and 42 are 10 ampere relays and have a range of 0.1 seconds to 5 minutes. Series 44 and 46 are 12 ampere relays with time ranges of 0.1 seconds to 3 minutes. Repeat cycle

Circle (15) on Reply Card

timers, Series 48, are

also available with timing ranges from 0.1 seconds to 3.0 minutes. All have in ut transient protection to prohibit false triggering or damage to circuitry and are UL approved. And because Philips ECG re ays replace more original relay types than any other brand, there's no smarter choice.

Philips ECG's PR -60 & PR -200: The Answer to Your Scope Probe Needs. Whether you're an engineer, techni- cian or a hobbyist, we've got the scope probes you're looking for. Not oily in terms of features-and these models are loaded-but in terms of value. Each has switch - able ground reference plus X1 and X10 attenuation for a range of applications. And each is compatible with most popular oscillo- scopes. For the smart choice in scope probes, look to Philips ECG!

Circle (16) on Reply Card

You know your business. You know what you need in electronic parts and supplies. And now you know where to get them. Philips ECG. Con- sistent high quality you can believe in. An incredible inventory of equip- ment and supplies. Reliable value all up and down the line. Contact your local Philips ECG distributor or call 1-800-225-8326. It just might be the smartest call you make aliday.

The Smart Choice.

PhilipsECG A North American Philips Company

©1988, Philips ECG

Page 26: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

REFERENCE INPUT

COMPARISON INPUT

SAMPLING PULSE

GENERATOR

RAMP GENERATOR

SAMPLE AND HOLD

COMPARATOR

dc OUTPUT

N MDC OUTPUT 1 1 VOLTAGE ,

n n1 J L-_1 l__J L

Figure 4. Instead of PWM outputs, older servos used sample -and -hold circuits that provid- ed a dc output. In a sample -and -hold comparator, one input to the comparator is either a ramp or a trapezoidal waveform. The other is a narrow sampling pulse. If the two inputs drift out of phase, the sampling point will walk either up or down the ramp, causing a correspon- ding change in output voltage.

R,

POSITIVE 2.2kº R,1 (V.,) LEAD

10kº POT

10k52, 10 -TURN R, CONTROL VOLTAGE 4.7kº OUTPUT LEAD

R. S, 2.2kº

GROUND

R, 100º,

10 TURN LEAD

b 10kº POT

R. 2Mº

C, O.OpF

Figure 5. The schematic diagram for the servo diagnostic device. R3 provides coarse speed adjustment while R4 allows fine speed adjustment. R2 and R7 provide adjustments of mini- mum and maximum voltage. S1 is a DPDT center -off switch that provides three operation modes: kick-start, run and stop. R1, R5 and R8 provide current limiting during kick-start operation. The network comprised of R5, R7 and C1 forms a current -limiting filter.

421'4 9 BJJ361534 J3 c31 302929 27 26^S24 1C201

TDB314P-03 2 3 4 5 6 7 B 9,0 il 2 31415161719192021

BA728

O DRUM MOTOR

P2D04

7 D. FG

6 D. FG

5 PG -

4 PG

MaB

2 GND

1C203 BA10324

D. CONI

P2D03

8 C. COST

C. FG

6 C. FG

9V

4 GRD

3 B

2 CAP(-)

10kG M.GND

Figure 6. This capstan motor -drive IC for a GE VCR requires two power -supply inputs: +5V on pin 13 and +12V on pin 24. In addition, three other inputs are required for operation: a torque -direction signal on pin 11, a reference voltage on pin 15, and a speed -control signal on pin 16.

corresponding change in output voltage. In servicing servo circuits in older

VCRs, always perform the entire servo alignment before troubleshooting or replacing components. A large number of these units simply need their servo alignment touched up. Two examples are the Sony SL -5000 series and the RCA VKT series. I have repaired many of these machines by simply realigning the servo circuits. Another important point is to always perform the servo alignment after replacing parts in the servo circuits of these older machines. The newer PWM machines have few if any servo alignment adjustments.

How the diagnostic device works So far, we have described the servo

circuits up to the control voltages feeding the drive ICs. Individual parts for these motor assemblies often are not available, so we must treat them as black boxes. All you need to do is provide the motor with the proper inputs and monitor its performance. If it doesn't perform normally, it must be replaced. Figure 5 shows the schematic diagram for the servo diagnostic device. R3 pro- vides coarse speed adjustment while R4 allows fine speed adjustment. R2 and R, provide adjustments of minimum and maximum voltage. These resistors, which are preset during construction of the device, center the adjustment range of the voltage divider to approximately half of V, , which is the operating point used by most VCRs.

SI is a DPDT center -off switch that provides three operation modes: kick- start, run and stop. Sia is closed in the high position. Sib is closed in the low position. However, in the run position, neither section of Si is closed and therefore neither R2 nor R7 is by- passed. The run position is the normal operating position of the diagnostic device with the high and low positions being used only to either kick-start or stop the motor. Directly proportional IC systems use high to kick-start, run for normal operation, and low to stop the motor. Inversely proportional IC systems use low to kick-start, run for normal operation, and high to stop the motor.

R1, R5 and RS provide current limiting during kick-start operation. The network comprised of R5, R, and CI forms a current -limiting filter. (Compo- nent specifications and part numbers are available in Table 1. Adjustment pro- cedures are available in Table 2.) The

24 Electronic Servicing & Technology October 1988

Page 27: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

only critical components are R, and R4,

which must be 10 -turn linear taper pots. The basic function of my device is to

provide a stable, precisely variable reference voltage. Breaking the servo loop at the motor -control voltage point and inserting the device allows you to troubleshoot the servo circuit quickly and accurately. The first step generally is to kick-start the motor to get it

rotating and then determine if it will run at the correct speed. Failure of the motor to perform properly points to the motor as the defective component. After the motor has been cleared, the device allows the VCR to be run with an ac- tual tape while real-time normal operating conditions exist. With S, in the center -off position, both switches are open and the device is in the run position. With S,, closed, the device's output voltage is forced into a higher - than -run state. This higher -than -run voltage will kick-start those servo cir- cuits whose motor speed is directly pro- portional to the control voltage; the voltage will stop those circuits whose motor speed is inversely proportional to the control voltage. With Si, closed, the output voltage is forced lower than nor- mal. Again, depending on the particular VCR, this will either kick-start or stop the motor.

R, is normally set to mid -range in- itially. R, is adjusted until the output voltage corresponds to a motor speed of slightly faster than normal SP speed.

Table 1

Parts list Part Specifications R1, R8 2.2K2 (1/4W, 5%) R2, R, 10k4 trimmer pot R3 10kQ2, 10 -turn pot

(Clarostat 73JA series) R4 100Q, 10 -turn pot

(Clarostat 73JA series) R5 4.7k4 (1/4W, 5%) R6 2M4 (1/4W, 5%) C1 0.1µF Mylar S1 DPDT center -off

Table 2 Adjustment procedure

Step 1: Place R3 and R4 to mechanical center.

Step 2: Apply +5V from positive input to ground.

Step 3: Connect a DVM between the output lead and ground.

Step 4: Place S1 in the low position and adjust R2 for 0.75V.

Step 5: Place S1 in the high position and adjust R7 for 3V.

For inversely proportional machines, this voltage would be lower than the nor- mal SP voltage of 2.5V. An input of ap- proximately 2.3V works well. After connecting the device and pressing play, I would place the switch in the low posi- tion momentarily to kick-start the motor before returning the switch to the run position. If the motor is OK, audio and video playback should be faster than normal. Coarse and fine controls (R, and R4) are then adjusted to slow the capstan down to the correct speed.

Machines with directly proportional drive ICs would use an initial voltage setting that is higher than the normal SP voltage. These machines also will use the high switch position for kick starting.

To understand how the device works with both proportional drive ICs and in- verse drive ICs, you need to understand how the motor -drive circuits of VCRs operate. Figure 6 shows a capstan motor -drive IC for a GE VCR. This

Main article continued on page 28.

BEST PRICES! 800-624-6241 Freight and taxes extra. Immediate availability of Use your Vlb.-,

equipment. MasterCard!

MULTIMETERS Beckman Industrial

Model Price 300 $101

310 $122 320 $150 350 $198 360 $250 4410 $206 HD100 $146 HD110 $172 HD130 $224

SCOPES Hitachi

Model V-222 V-422 V-425 V -1100A V-660 V-665 V-1065 V-509

Price $570 $734 $859 $2070 $1076 $1345 $1706 $1266

BECKMAN Model HD140

$241.00

HITACHI V-1060

$1436.00

POWER SOURCES

Power Designs

Model Price 2020B $808 1570A $1515 2K20A $1040 4050D $765 5015D $508 6150D $765 TW347D $812 TW5005D $594 TW6050D $1021 TP343A $812

Fluke Model Price 23-YEL $125 25-YEL $167 37 $209 73 $66 75 $100 77 $125 8010A $251

8020B $176 8050A $335 8060A $310

Iwatsu

Model DS -6411

SS -5702 SS -5705 SS -6611 SS -5711 SS -6122 SS -5712

Price $2414 $508 $853 $1863 $1634 $2065 $2885

POWER DESIGNS TP340A

$725.00

IWATSU DS -6121

$3975.00

FLUKE 27-YEL -or- 27 -STD

$208.00

THERMOMETER Fluke (Handheld)

Model Price 52 $142

LCR METERS Wayne Kerr

Model 4225 4210

Price $1806 $2497

COUNTERS Fluke

Model Price 1900A $459 1910A $616 1911A $756 1912A $832

Used Test Equipment, Too! Over 3,000 Models Available At Huge Discounts With Warranties!

Use VISA or MasterCard Call Toll Free 800-624-6241

Circle (18) on Reply Card

October 1988 Electronic Servicing & Technology 25

Page 28: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Sf 3í

u

SE Goldstar ice with

e 81 arrived ha arv °wband

an d d sn an

VCR Ftgu back picture

exhibited wO 36,

This VC e lay audio

ex Cftinglt2 Tb s th playback a loop by 3 By

two Probth through it and the

servoat pin g of p2 men

movinBreakingtltnostic device the

at to hrgcontrol the

fluttniser. tea tbc diagnostic placingtot, I was able to°f the

pressins Play the m and fin unit prOdve

1 kick-start the

coarse uit, the {or s mo` t Peed with ce in the ie

would hold P a.

With th clear

ptctu t. hese symptoms

device. audio,

fore Mopping ó could be PrOyPhaso{

1C p1 g seconds

be n motor the capstann. in 20 rn_

that the capstan inputs L pulse

V

; pin 2g

4 of 01, I

ie

Checking found is kin MMo tput pie Wicking

-out g u no asshowed and to ñ capstan

phase-output wavef t IC Pm a1, I re-

ie

placed

nonotin the signal inputs

were Th not -trial,

then

14 and mgpal Because labeled IC2

YwM the black

Pworhed properly.

\ Goo--- FM

ó \ GeV-5 ...

<s..:274

ssi <¡à

r:RSY,J.1

xr'f`SZ =ra[.r . -7. et

z, ;` .:v r_

H?'

4

the complant

6) came in with d that the

This VCR (see Figure On bench, I

found Insert - mode.

tapes. te in any 1, I found

that it was eating rota 6 of Checking

the in - motor would

not PinV diagnostic

device motor run d hotte the 12

puts

Insett-

ing the d

ble to make t lug 2b01, I found be

it imp° motor on P the reference voltage

to

them et torque direction

and to supplies resent well

the COrre direction

direction is

t Also P This torque rd, 2.5 1 signal-

ing

of 0V in POV signaling

forward, voltage with reverse. s motor, tri -state lined 5V signaling are

available for this

ing stop, individual Parts t p,{ter verifying da

the

Because troubleshoot. vices were good, back

drive t I continued

to gall effect devices the un

coils drindve

601, which

Placed terahe tr°ne

2

into operation.

. J`ii:;í}:t¿C.

The complaint with this VCR (see Figure 8) was that it was shutting itself off. On the test bench, I observed that the capstan was not running during the play mode, yet the unit would fast -forward or rewind properly. In- serting the diagnostic device, I found that the capstan motor was capable of operating with the correct speed and torque. Checking the FG input signal on pin 5 of IC201, I found an abnormal ac waveform of much too high a frequency. Furthermore, this waveform existed even in the stop mode with the capstan flywheel sta- tionary. Tracing the circuit back, I found that IC203 was oscillating. Momentarily flexing the board caused the oscillation to stop, and close inspection of the foil side disclosed a poor solder joint to pin 7 of plug P2D03. This pin is the low side of the FG head, and with this open connection, the circuit broke into oscilla- tion. Repairing this solder joint returned the VCR to normal operation.

xy;

MGA HS -348ÚR

This VCR (see F' Plaint that it Figure 9) also

that the headwas eating tapes. arrived with the com-

plaint

motor tuas not n the bench, I found stalled, the ca iUnning. With the loading Posts

capstan would pull the ta head

loathe posts,

it in the process. IC4A3 is the

drum

the After wicicin pin 11 the speed control

voltage

Put-

ting the unit diagnostic device directlypin 11 of IC4A3 I

motor into play, I fias able to to pin 11. put I check

te and I could control its make the drum checked the drumspeed IC 4A0 and found ' FG input si speed -control PWMton e

normal. gnat on pin 26 of Checking the drum ac and SVdc. Isolatin Pm 14 of I change the g pin 14 C4Á0° I found no

con- firmed n thatvoltage condtionshe circuit did not the inputs were Navin put

was fix t' I replaced IC4rr and ect

utlte VCt

the

R

hr ,tiS ,h¡ÿ ,,.'d%

1,4

s?H`.t

6;;

Page 29: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

POR¡COR A

3

9

o

701 Brooks Ave. South

- TION

Duality Neme Brand Electronic Components

Computerized Order Processing & Inventory Control

Volume Discounts - OEM Pricing - Toll Free Wats Line

P.O. Box 677 Thief River Falls, MN 56701-0677

950h* OFTTOPU100ELECTRONUIC

SATES ARER IGISKEY CUSTOMERS Source: Electronic Business 200, "Electronic Business Magazine, July 15. 1988

This might seem incredible until you realize that . .

95% AVAILABLE FOR "OFF -THE -SHELF" DELIVERY - AND THE OTHER 5% ARE ON THE WAY!!

OF THE ITEMS IN DIGI-KEY'S CATALOG ARE

99%OF ORDERS ARE SHIPPED TO DIGI-KEY CUSTOMERS WITHIN 24 HOURS!!

009/' COMMITMENT TO CUSTOMER 0 SATISFACTION!!

To receive your complimentary copy of the current Digi-Key Catalog or for pricing and Availability on your current or future needs - Contact Digi-Key today

1-800-344-4539 Easy To Remember: 1-800-DIGI-KEY

AK, PR: 218-681-6674; Easylink: 62827914; Telex II: 9103508982 "DIGI-KEY CORP; FAX: 218-681-3380

Serving A National Market With Quality Electronic Components Since 1972

n m

o

e-

3 m

ao

á n

IA

CI

7 I ( i ÍO/Gl-KEY }. . I I i F,\ -

. . - 1Sy .--f--- , ..,.. o

..

il i ' , Ti w ,¡ Ì 7

7 i

c `JF f H a?t á -:_ ,y,, II - , 9

n _ r. ..w. - ,.rw. - i c -- 0 ik lur5w , :i . .

-a--.., , 1KI .. n - 3.,a . . --. :r. '"

c Panasonic Amp 3M/Associated Electronics Omron Texas Instruments International Rectifier

Circle (19) on Reply Card

Page 30: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Main article continued from page 25. motor -drive IC requires two power - supply inputs: +5V on pin 13 and +12V on pin 24. In addition, three other in- puts are required for operation: a torque -direction signal on pin 11, a reference voltage on pin 15, and a speed - control signal on pin 16. The torque - direction input is a tri -state digital in- put that tells the drive IC which direc- tion to spin the motor-OV signifies for- ward, 2.5V signifies stop and 5V signifies reverse. The reference input is a constant 2.5Vdc level to which the speed -control signal will be compared. The drive IC compares the speed - control and reference inputs, then ad- justs the motor speed in accordance with the degree of difference between them. The larger the difference, the faster the motor speed. The particular IC shown in Figure 6 decreases motor speed as the speed -control voltage increases; it in- creases motor speed as the speed - control voltage decreases. In other words, the higher the speed control voltage, the slower the motor.

These drive ICs are very high -gain devices in that very small changes in the speed -control voltage correspond to large changes in motor speed. Therefore, to manually control the motor accurately, you must be able to adjust the speed -control voltage in very small increments. To accomplish this, the diagnostic device has to be a precise- ly adjustable voltage divider network.

With the device, I can fine-tune the speed -control voltage with a degree of precision exceeding ±0.01 volts. At first glance, you might think that the device could be replaced with a simple variable bias box. However, no bias box is go- ing to supply vernier adjustment.

The choice of components in the diagnostic device was dictated by several design criteria. The voltage divider net- work had to be fairly low -impedance to

prevent the possibility that the drive IC might load down the device. The need for precision control mandated both the 100:1 ratio between the coarse and fine adjust posts and the use of 10 -turn con- trols. In theory, C) could be eliminated from this dc circuit. However, I have in- cluded it for filtering purposes. In the real world, stray ac signals are floating everywhere. Because of the fairly long

Continued on page 41.

Using the kick-start function In case you were wondering, kick-

starting is not dangerous or damaging to the VCR. In fact, all VCRs automatical- ly kick-start the motors each time they are started. Kick-starting is necessary to overcome the friction in a stopped motor. The kick-start procedure involves momentarily starting the motor at a faster than normal speed and then letting it coast down to the correct operating point. For instance, look at the GE VCR in Figure 6. If I apply exactly 2.3V to the speed -control input with the motor stop- ped, nothing would happen. However, if I apply 2.3V and momentarily spin the capstan flywheel with my finger, the motor will take off and run. Because this IC increases motor speed as speed - control voltage decreases, I can electrical- ly kick-start the motor by momentarily starting the motor with a lower than nor- mal voltage. With the diagnostic device, this is accomplished by placing the switch in the low position. The procedure is

really just equivalent to starting the motor in fast -forward speed to get it going.

To illustrate kick start, refer to Figure 8. IC203 contains a summing speed - control voltage amplifier (the op -amp on pins 12, 13 and 14). Pin 12 is the capstan phase -control voltage input; pin 13 is the capstan speed -control voltage input. In the stop mode, Q2, is on and keeps pin 12 low. This keeps the op -amp output low and the motor stopped. When the system - control circuit commands the capstan to turn, Q2, turns off and pin 12 floats to the default value of 2.5V. Because the motor is stopped, pin 13 of IC203 is low. With pin 12 at 2.5V and pin 13 at OV, the output pin 14 will be at Vcc or 9V. This output will cause the motor to begin turn- ing rapidly. IC201 then senses the motor speed and adjusts pin 13 of IC203 until the capstan speed is correct. Thus VCRs automatically provide their own kick- start. The diagnostic device simply mimics this feature.

(P2002 MAIN C.B.A. SERVO SECTION)

P2601

9 © ® © 2

8 +5V 7

7 REF. VOLTAGE 6 ERROR 5

S RCC b

4 GND 7 3 VM B

* FORWARD L

STOP M

REVERSE H

24 22 2 Ig

RIPPLE CANCEL

DRIVE

17 1b i5

TORQUE COMMAND

t t 3 DIFF S

111-0- TORQUE SELECT

POSITION SIGNAL PROCESS

TORQUE DIRECTION CONTROL

Figure 7. A general flowchart for troubleshooting with the device. Voltage -control logic varies from manufacturer to manufacturer.

28 Electronic Servicing & Technology October 1988

Page 31: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

HITACHI CT3020W/CT3020B MAIN SCHEMATIC DIAGRAM 3033

Product safety should be considered when component replacement is made in any area of a receiver. Components marked with a I

and shaded areas of the schematic diagram designate sites where safety is of special significance. It is recommended that only ex- act cataloged parts be used for replacement

To SELECTOR P W B

TO SELECTOR P W B

L

of these components.

Use of substitute replacement parts that do not have the same safety characteristics as recommended in factory service information may create shock, fire, excessive x-radiation or other hazards.

This schematic is for the use of qualified technicians only. This instrument contains no user -serviceable parts.

The other portions of this schematic may be found on other Profax pages.

Reprinted by permission of the Hitachi Corporation of America Copyright 1988, Electronic Servicing & Technology, P.O. Box 12901, Overland Park, KS 66212.

3000M,- VHF T50

IN/OUT TERMINAL BOARD

20101 ROS 6E6

S1F

r - - - R102 100

I (MUTE1 I SS2

1+12 SS

C1oT 10/25

MAIN R W.B.

TO A/V -9 PA, B

TUNER ET449

L101 1000H

Vol 0072

8071 0 " 0101

2SC2060(g) R,1

C071 2200P

Do -

f

I +12V1

L212 0717 L208 R219 2 2011 740 1200 K

1M R271

4E201 2K-8 0 4 5MM,

R212 I

TRAP C226 111156K Yn e20 4T/16

R20913K

22"3tt:210 t6 SA.3K

C215

4-712°°®' O O e

3v 42v 1.6V 53v 5

To A/v -8 PW B

t

IGND 1 1vIDEOI (VIDEO) 112v1 1 GN01

nn

D2 CDD1 04 D5 D3

R216 B4

L205, AFC COIL

L210 100

0

LIU4 /YF m.s --I HFILTEB

C2oe y tR202 OP err? 2O V203

r/13-V271n0

O e 40V í12v

0201 2SC458

IST pO

CAI I SBP

0/2 275

TP -12 1

C433 100/16

MFso,

1TP L401 C{01 1 45 MM! 20 rC, FILTER _ ff _91209

C200 21 6BVN 33

R{Ot t 7 SOUND TAPE

470 3 R402

C206;4 404 HC205ÿ3000 120F ...9P

L202

3V

001

9 4994 455

11:406 OOI

TP+

50/

0401 2SC458 ®/a0

VIDEO BUFFER

0413 270

48V

R404 2 2K

R203

AFC

BLACK NO SE

INVERTER

v DES DET

WHITE NOISE INVERTER

R226

1 0215 yyyKKK 1

1 B R203 C210 01/SO }3 1/ 033. 390K 0 --- SffiC211 T

N{OO TI1 L206 2.2/50 Ö 5

0

20201 5e M

2-6A C221 C220 C219 CIl1 1211 1Q 22/16 ;68P T 2200P 2200, TIOOVM ih 7111/ iß1

AGC NOISE INVERTER

0206 5K -e ACC

8207 TOT 39K

0074 1 2

C 072 1 #07650

2200F e

2 5v 0073 330 ;M 071

22 Ì.r0 1 100101

1O' - 0071 = 007

520 POE AMP 2SC717TM

3

R075

ADAPTOR P. W. B. SS1

L001 10000 coo?

2200P

ßO04 33Kí

C001 Sly Tor

R002 I 22

f R0O1 75

SS 2

*72'23 R003

IPI

0001 2SC717

R005 150

R0113 .7K W

8007 220 800,

6S

C004 2200P

L002

0002 1!540

C003 IOv

0006 10

C002 T 220oP

}BUF AMP

--4 39D1 VIF AMP I

4-4 2ND VIF AMPI

To SELEE µ0R

B

MTS TERMINAL

TO POWER P W B

,DISPLAY

1ST

G4

IF AMP I

LIMITER AMP

C203

SIF DET

AUDIO AMP

II -4 2200P

R201 C201 C216 330 -200P 2200P

DC ATT FM DET

R406 47 11 W)

1402 10000

5v

0410 '00/16

52V

C 22P

5 3

C413 0.01

R411 330

E

y MK 402 SMHt T 015CRI

n Tlln

8410 470

1C43{ 0409 0 1

0.01

R44, 330 11/2*)

M 0435 520

.09v

C4 2 0/23

C406 50

0405 820"

IC 201 MS1340P

IGN01 G2

I SYNC) G1

0421 2SC458 ®/©

AUDIO BUFFER

0423 2SC1983®/C / Y®

4 OUT

I+ 12'i

R434 470

8423 57K

R421 R422 270

220 0420 R444 330 7.6V

II -VK

2 5V

C422-1

T

8420 I

C421 11i 47/14

0425 BO I 350K

C43t 410/16

8426

0400 330 nWl

16.7

0423

0421 19 3V

2

00022 C437 100P

0420 0435 2SA844©/® 00161

0424 100000 '4.74 0426

660

1C42 I

»OP

C4231 47/25

0420 *06B

0429 ISK 0

0 5v

8427 2.2Kf

0 356 2SA 844 ®/ BLACK PEAK OFT

D352 0351

M 132076

8362#0365 C357

2K 162076

R36 6.2

M2ne12deruspRvggH schematics

R432 22 11/2w1

C426 1000/25

7V C427 470/160

5442 y 0424 10 20302 -

C1y 11 eV

2SC1983 O II1/60 R30! / Y IIo

S.OUT TC.128 l"eR433 i 1 0.

156 CIl2

October 1988 Hitachi

Color TV

CONTROL P. W. B.

C .0354 411364 12V R36! 92 1Q 22/16S10oK 92V/

0357 28C458 ©/© 8365

SLACK LEVEL 6.54

8366 I SK IN

11365 I16359 3.34 Z I K 0357 I 104

8351

#

8352 IK

36,,

0351 2SC458®/©/© VIDEO SUFFER

0353 560 X115

C351 100P

R368

L352 12VM

OL 35/ 0353 - PM46E

R313 240 DELAY

LIME

4--I F-- 0 352

L SSl 2SA8440/56, t364 0356 VIDEO BUFFER

C 2P i 2#.2K 3320 R356 82P T 90 7111

""'"0.4v M 0320 12K

0321 2K

0307 2SC 458 ®/©/QD

SYNC DRIVER

0359

0353 I r 2SC458 y

0367 VIDEO MP 01341200-e

BAIN 5.44 AA #323

3316 IK 330P

12

D35E 162075

L ! R37o C65S0/25

1K , 0305

0364,0355 '# -

+Y 0368 2ßC468 ®/©/®

VIDEO AMP

5

8371 226

Al e A7 0305

0308 OO

2SC458 ®/©/ Iv

C304 47725

t113.6 2SC458 ®/a® 2ßC468®/ Co/® î 760 L3o6 VIDEO AMP

LACK LEVEL CON/EC U r' 96#0

0551 IC 501

23C465®/©/0 VIDEO 0HA11436A 2ß02A

3V

#322 550

0321 IIK

IBLKI G3

1+34v

PLLSEI

610

Ge

I -213V G9

IAC12v1

(RELAY)

G6

I+12vI G5

IGN01

1+B)

(420V)

IMP)

16801

J2

J4

J1

J3

Z1

C 909 97 470/16

1 RL 901

D903 Hi" *065

0913

t76 12W)

5

0412 0033

RISOI 180

R 624

220/16

0519 104

05v ay ry 4y 12V 5V

0033

8.244

4 9V

NS -

0 4

20741

+140

1C 701

Z5

Z3

Z4

Z2

ßC1

C907 100/160

11703 54-11

5.86 #737

0701

TRIG

1501

04112 0501 41,0 1K

C503 220P

ei 25

0502 1004

CONTRAST CONTROL

10/25

50. 131303

5

0320 0 01

0 4V

PEDESTAL CLAMP

001

9V

Coil 90 25

R623 e 694*

1500P

o

330

082

10/25

R7094 070138 C708 180 180

0 5V

A, 0701

2SC2271

C702 j 1/50 7.28

10000/ 500

0919

0701457

a 702 11101455

27K

0.0181/43044. *AS

44 »OP/MN

4 0726

11/81111 -545

L 711 R7»

1820 13847311

R714 0725

6.24 104

cm

8n113 i 1 0725

100 "'I' 1820744

10110 - 12e12 CM? i lome

54911

1K 1319/ TAN

6626 100

0619

exiDe

0722 420

We

#715

1686

131( o

17614 4.15 500-e

v 312E

220 0702 EMU

RC2 18a841. -2 L710 207.2 1200 00308-11

33K II/ MI

10/100 0704

Page 32: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

3033 PROFAR (UM Manufacturers schematics

IAan ri pR©gm schematics

3034

HITACHI CT3020W/CT3020B MAIN SCHEMATIC DIAGRAM

Reprinted by permission of the Hitachi Corporation of America Copyright 1988, Electronic Servicing & Technology, P.O. Box 12901, Overland Park, KS 66212.

8158 500-8 BRIGHTNESS

R154 10K-8

COLOR

R155 56K*

8153

2 7K slsl

8156 rOK-B

TINT I R137 3 3.9KK

- }

- 18152 S._yy R 171

IK

RISI 3.9K

O R164

UMM

Rte? 10K -B BASS

F3

R 16 10K -e

TR sLE

F1

R189 101( -B; . s! yL!! öILYCe

F2

F5 F4 BRIGHTNESS) I sun BRIGHT

6 D304 152076

#:%7 N

0303 32076

+12VI

Iv. HOLD) 1 121 (COLORI ISTI TIMI IG140)

n ® O O On Cloe

8311 5K -B SUB BRICHT

R312 2713

20502 HZ -12

2519 270P rIT

1 Ì7ÓF 1-

20 503,

2ioso

HZ -12

_co,o 4 7/25

R316 C320 -L.-4 2702 T Ttr

C3r7 OSr rAT

D302 92076

R314 66K

9.3V 10V

R311 # !90

Cl13 2200/16

TP -43 71i523 .56K

6.5V (2V

VIDEO AMP 1

1c517. 0.01

11 eV

VC

q' 1503 p12PN 'R528

R33209 3

3 V 720

L502á L 501 12 PHo 12ßS

6527 i 0521 2702

C522 270P

R524 39«

72

DEMO

DC TINT

TO OTHER PART OF SCHEMATIC

R5O6 27K i1Á

V 3.6V

8510 1.2K

4 --Ver-

3 6V

50, O

1iv 8 )

R511 470

12509 22P C 50 I 4

T39 P I 272 R513í

200K

C513 33P C514

C 515 /50

C512

y O9/{25

y c511H

5.5V 56V I5 1V

85OK119 {

0033

R51e 2.2 K

v 20 501

P3

- CPT P.W.B. Ree.

1 511 6 5.y

4 ( a

8:r.0853 12K 2SC 1514

OUT4

P3

7V Re78

11V 2K

Re77 12K

Pat

R86e 2.7 K

6 4V VA

0852 '2SC 1514

G OUT Peer 71V 5K

TO RGBPWB

v1 A63J0C OIX A634AT31X

7 2V

16 2V

L851 l2oKH d R864

2K

0851 2SC1514 R Our

Rese t.21(

R652 12« TI

Re65 5K -B

()HUG

RB52 200-8

DRIVE

R517 5 2K

R SIS I5K

0307 152076 152473n ff

8512 50K -B 2122_222£

RSI' SS

750 y ß51e OK

9ov R609

3K 11/2W1

R606 3K 117234 1 40V

()son 152076

C605 4 7/50 602 z 13207K R600

11/4w)

C606 loop/ 500 O.5v

R6pB 0601 2SDI459

0602 2SD1459 ei®

40V

I C609

Mr

0305 152076

U/. R532 12K

0306 52076 152473H

Iv

R330 000

t R333 10K

RB59 5K-8

R853 5K-9

R-BKO

RBSI RBSB

240 200-8 R850 R=0ß1V

305

5

20301 HZ -11

pum/©

0306 2SA844 © / 010E0 DRIVE

M4

M3

P601

o

TI

T2

T2

mr

SOBS(

K1

K3

C604 33/160

4700P Soo

£R5617 5K 1/4W1

N 0606 100/100

T701 EST ñ

o

7 0

13515 «61e TIZTRr3 $ 4 71 7630

11/46I 11/2W1 15K CENT !rw1

I

R732

Ìr3 `-0-.1' O K11W1

L708 SCENT C721 ® 0.ís/200

6629 330 3901

11/2W I

1M

C 720 22II0"6

C719 10 00 2/ 5 0A0

754 A

0701 awes

R712

8711

_ 1 ) 0 O

K3/72 (ono

i, Y

17136 27YH

I

P602

C716í /

m 0703 RMIZ z

7C/2r17

P701

(HEATER)

C 725 1000P/ 500

-/003 L703®

P7021

M2C

M1

K2

DY

200v)

SIDE PIN P W. B.

Zenith CM -139/B-3 (I) SD2511G/SD2581H

Product safety should be considered when component replacement is made in any area of a receiver. The shaded areas of the schematic diagram designate the components in which safety is of special signifi- cance. It is recommended that only exact cataloged parts be used for replacement of these components.

Use of substitute parts that do not have the same safety characteristics

as recommended in factory service information may create shock, fire, excessive x-radiation or other hazards.

This schematic is for the use of qualified technicians only. This instru- ment contains no user -serviceable parts.

The other portions of this schematic may be found on other Profax pages.

DAG

ONO

TO 2A3

DEGAUSSER COIL

CRT YOKE

V H

ANODE

TO 353

3T8

1--1 TO 3T8

I I I I

006022[11044

9-467 VIDEO OUTPUT

R5142

05100 DRIVER

05103 OUTPUT

BLUE

05104

Q5101 DRIVER

OUTPUT

CRT

SOCKET

FILAMENT

R5145

GREEN

05105 OUTPUT

05102 bRIVER

NO POS

(3:4) 11141

(1:2)

_} SETU POS

(4:1 (3:2)

R5148

1 5L

2 RM 3

5.3

G2

FOCUS

R51Á7

05106

4M R5102 BLUE

'ZS R5RED

O 6C2

TO MAIN SCHEMATIC TO MAIN SCHEMATIC 2C5 2A3

V 'M R5100 GREEN

Reprinted by permission of Zenith Video Tech Corporation Copyright 1988, Electronic Servicing & Technology, P.O. Box 12901, Overland Park, KS 66212.

5Â3

3.L

TO MAIN SCHEMATIC 3A5

TO MAIN SCHEMATIC ANODE 30kV (519) 26kV (518)

TO MAIN SCHEMATIC 3S3

TO MAIN SCHEMATIC 3x5

MAIN SCHEMATIC

MID FOCUS

AIR

October 1988 Electronic Servicing & Technology 33

Page 33: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

3034 Manufacturers schematics

Manutacturerf Room schematics

3034

Zenith CM -139/B-3 (I) SD2511G/SD2581H

Product safety should be considered when component replacement is made in any area of a receiver. The shaded areas of the schematic diagram designate the components in which safety is of special signifi- cance. It is recommended that only exact cataloged parts be used for replacement of these components.

Use of substitute parts that do not have the same safety characteristics

00050,Z[MOOi

IF, AUDIO, CHROMA,

LUMA, SWEEP, AND

POWER SUPPLY

VIDEO OUT. CV

L2288

LUMA

DELAY

L2276

R2172

VERT

HEIGHT

as recommended in factory service information may create shock, fire, excessive x-radiation or other hazards.

This schematic is for the use of qualified technicians only. This instru- ment contains no user -serviceable parts.

The other portions of this schematic may be found on other Profax pages.

IIL

V HIGH

CVa III --t

L2376

R2390

12378 ,

COMP ST

~, II 1 SYNC

I I RC OSC

V. SYNC

PIX CNTR

COLOR

2N° CHROMA OUT

-iI ACC

CHROMA FIL

OSC OUT

APC FIL

OSC

OSC "C'

TINT

CHROMA DEM

42

4

3 40

4

10

11

12

16

8

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

19 24

20 23

21 22

TO CRT 5C2

2C5

0

V RAMP

0

RC OSC

4.5V REF

C2118

VDC

VERT

NOISE PROC

FORCED MODE H. FINE DELAY

H. OUT

October 1988

Zenith CM -139/B-3 (I) SD2511G/SD2581H

Product safety should be considered when component replacement is made in any area of a receiver. The shaded areas of the schematic diagram designate the components in which safety is of special signifi- cance. It is recommended that only exact cataloged parts be used for replacement of these components.

Use of substitute parts that do not have the same safety characteristics

TO CRT YOKE V

*_1_1*

MODE SE

IN NORM

CLAMP

ABL

CR3276

TX3251 1_7

I"4,;1.0 49r--

.aaa 2

I C3276

TX3205

TO CRT 5A3

SAS B

FIL X

0 ©

-3 000 LIN

LX3262

H-OUTPUT

Zenith CM -139/ B-3 (I)

Color TV

as recommended in factory service information may create shock, fire, excessive x-radiation or other hazards.

This schematic is for the use of qualified technicians only. This instru- ment contains no user -serviceable parts.

The other portions of this schematic may be found on other Profax pages.

WIDTH Lx3261

TO CRT YOKE H

*

TP2

FILAMENT 'M CR3487 RX3237

CR3472

RX3224

VIDEO. CI

2N0 H. APC

FLY BACK

+8V FE)

BLK LEVEL

PIO

+8V FL

BLUE

RED

GRN

SHARP

LUMAL

'M

LUMAC

1 lD QD r- LX2377

LX2277 HIP

287

CHROMA SET UP

IN NORM

2J

2A7

O - ó x_

ry

0060 0 0 0 ®00©00 2A7

ó Ñ 4.1

0 2C7

3064.0400I

RX3222 RX3209 RX3218

Rx3219

SHUTDOWN 1 LATCH

SHUTDOWN TEST POINT

CR3206 r CRX

AL 3204

m CR

3469 RX3200

12V REG

9X3464

CR3467

0 3A8

=CRX3200

5V REG

A3

900e0rZEN06,

9-518 9-519

EX3201 4

Vo 93408

RX3261 - VIV

. /TX3204 c

_L. O - 3E4 ANODE o 4E3

30kV(519) 26kV(518)

3217

FOCUS

G2

3x5

3C4

* JUMPER

e TO COLOR SENTRY (NOT SHOWN)

AT K-8

TO SWITCH MODE POWER SUPPLY (NOT SHOWN)

TO SWITCH MODE POWER SUPPLY (NOT SHOWN)

TO CRT ANODE

TO CRT MID AIR

TO CRT 3x5

Reprinted by permission of Zenith Video Tech Corporation Copyright 1988, Electronic Servicing & Technology, P.O. Box 12901, Overland Park, KS 66212.

32 Electronic Servicing & Technology October 1988

Reprinted by permission of Zenith Video Tech Corporation Copyright 1988, Electronic Servicing & Technology, P.O. Box 12901, Overland Park, KS 66212.

October 1988 Electronic Servicing & Technology 37

Page 34: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

3034 PAOFflH Manufacturers schematics

Manui PR©pme schematics

3034

Zenith CM -139/B-3 (I) SD2511G/SD2581H

Product safety should be considered when component replacement is made in any area of a receiver. The shaded areas of the schematic diagram designate the components in which safety is of special signifi- cance. It is recommended that only exact cataloged parts be used for replacement of these components.

Use of substitute parts that do not have the same safety characteristics

pQ 4

_I- -IL:

ON/OFF POWER CONTROL

- IR SIGNAL

W 6A7 7

J B

50 _Ope © c

0 ó O 000,O4Z[NO56

á -© m

0I- ---"0

WZ 12 Y --, o

L

0 © ©

© ©O

ANT

O VHF / UHF

CAN ANTENNA

INPUT

175-2277 TUNER/

TUNER CONTROL

NC

NC 6G4

as recommended in factory service information may create shock, fire, excessive x-radiation or other hazards.

This schematic is for the use of qualified technicians only. This instru- ment contains no user -serviceable parts.

The other portions of this schematic may be found on other Profax pages.

4M

¡__D_ ___-.-

6K5

TO EX3201 AT (MAIN MODULE) 0-25

TO STEREO DECODER 9G6

0 0 AFC OUT

7 OREV AGC

_a_ DETr

IN

3K

BAND PASS

L1204

LX1201

t1Ö1

IF IN

J1201

IF IN

r 4B4 -

4.0V

DEI

B

IF

IF IN

3 IF IN

27

I 1

28

2

16

AGC

GATE PHASE ADJ

R1213

22

APC

18 -Mti-13-NVM4, 17

VIDEO AGC eZ 20

19

25

24

OSC

ADJ

Li 230

R1244 ZERO

CARRIER

ADJUST

L1209

LIM ADJ I AFC

23 -ran 12 A L 1 TP .Ì

L1210

l b GD °VIDEO

IAIx, R2131

AGC DELAY

_E11 = 8 5V I ó

d

01230

U1402

fL i

3.20 I 2.5V 2.5V

DETECTOR

L1426

1 O DECOUPLING

3.2T 6 2 1 6 7

8 IC1451 - AUDIO DET - AMP

4 5 121314 15 10

1 1 t L 17.0V

Ve1.A

8.5V 8.5V 8.5V 7.5V

áy ci ó COMP

TO STEREO DECODER 9D4

i4jR17/1 "L N - BAJID r-^ tRu 1

16

IC1703

2 10

D.LX E7PAM:101

e 3

Zenith CM -139/B-3 (I) SD2511G/SD2581H

Product safety should be considered when compo- nent replacement is made in any area of a receiver. The shaded areas of the schematic diagram desig- nate the components in which safety is of special significance. It is recommended that only exact cataloged parts be used for replacement of these components.

Use of substitute parts that do not have the same safety characteristics as recommended in factory service information may create shock, fire, excessive x-radiation or other hazards.

This schematic is for the use of qualified technicians only. This instrument contains no user -serviceable parts.

The other portions of this schematic may be found on other Profax pages.

TO SPEAKERS (NOT SHOWN)

964

TP

87ARTOt1

9-59 9 STETKo oECODER A AUDIO 44111

I (l 19L4

St filter

1.up filter cop vco

Manufacturers' il pill" schematics

October 1988 Schematic

Hitachi CT3020W/CT3020B 3033

Zenith CM -139/B-3 (I) SD2511G/SD2581H 3034

TO TUNER/TUNER CONTROL 6G4

2l 27

'PLOT CAI L-R,LAPaL-S1'.-5Co Cy4CIL LeVeL R Ise e 422 ezi t (

STEREO

L.E.D.

Pi 33 32 31 -,Psi I.C. 1601

STEREO DECODER

Ow4 RI901

AUDIO PRE-SET

/f

2C H 20 I

Jy 22 234 17 2é

TO MAIN SCHEMATIC 4C9

6 4 IC1401 43 CET. 11 1p - 9--

14 3

IC 1901 VOL -8K

1011E A EXTEND

0 STEREO

L 13 19

16

6

4.8 1402

9J7

2R

TO SWITCH MODE POWER SUPPLY (NOT SHOWN)

9F6 16

16

©©

©

-e. Mal

Reprinted by permission of Zenith Video Tech Corporation Copyright 1988, Electronic Servicing & Technology, P.O. Box 12901, Overland Park, KS 66212.

38 Electronic Servicing & Technology October 1988

Reprinted by permission of Zenith Video Tech Corporation Copyright 1988, Electronic Servicing & Technology, P.O. Box 12901, Overland Park, KS 66212.

October 1988 Electronic Servicing & Technology 31

Page 35: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

lq MOiOuyoaj y Su¡o¡niag s¡UO.qOal3 8864 lagoloo

Ja55 Áoeinooe jaleaj8 g2iM pue .zaisea `iolsel somas loogsaignoil oui padiaq sell aotnap ousougeip aql Sugsn JoAoMog `aune .iagloue iol Lois jaioue s,iegj wajgoid agi si /Ulmo -jio iojluoo io jaunt agi jagiagM auiw -Joiop Xpioinb ueo ueioiugoal e `OU!! lui -uni °aeljon agi Oi aoinap agi 2uigoeue Xg steals is 8uiuni 101oIJen ut osje 1nq siinojio OAJOS ui rCjuo fou `jnlasn Lan aq

oi panojd seg aoinap oilsougeip agZ luiod liels .iolouz

ow ol asOio d.ian si lolow uelsdeo agi lo luiod 2uilej0do dg ow asneoag aoinap ow qiiM isnfpe 01 Xxoul aje sadei dg palsnfpe Xuadoid Si aoinap ollsougeip agi imp pue poods dS jactoid agi le 8uiuunj jo aigedeo si joiow agl legi gloq saieoipui pue ieuuou si sigZ jeajo awooaq uiae 11iM ajnloid alp `spuooas

OV170I V 6u!uum lou sem lolow peay ayl 'sadel 6u!lea seM y3iyM H0A 941 paxil

`EIOA s!yl 14 6 a1n6!d

ONIO VOI dO 3SnV3

3NIWH3130

dWV 30V11OA -1O1:11NO3 ONV

HOIVH031NI 1OOHS3190O1:11

i IndN1

HOIOW ONISSIW 1OOHS3190OH1

HOlOW 33V1d3H

S3A

ON

LNO SlndNl H010W H3HI0

ONV AlddnS H3MOd 3HV ON

31 03133ddV 33V1d3H

NO ION Slndlno

Nld NO WMd 171OI1NOW ONV Nld 03133ddV

1110-N31M

x0 ION Indino

sir -wino WMd 121311NOW ONV 331A30 AHVA

S3A

LHO S1VN0IS 113 ONV Od Od 'A1ddnS

1,13MOd 'N3013 H31SVw 3HV

S3A

LHOlOW 1O111NO3 331A30

NVO NON

1

331A30 IN3SNI ONV 3N11 101:11NO3 tlO101W l'J3NNOOSIO

IVNOIS OAH3S ONISSIW lOOHS319nOH1

uo!leiedo ow! >!oeg l!un eql 146noiq log¿ OI eAup mau V apow Aue u! eielol lou p!nom blow ueisdeo e41 latin!; pue mom pei!q!gxe o!pne eql pue I! g6no141 6u!now pueq mous e peg amlo!d moegÁe!d ;NI :swe!gold oMl 41!M eo!Ales 10; penule FJOA s!I.11 8 wed

1 1 01 Cl

3AIH0 SLlßNV EVV3I HO1O1AI Wf1H a

rl ll 11 1 6

rMW-lsbLSNw OVbOI

9l Ll 81 61 OZ lZ 72 cc rZ SL 9Z LC 8Z

ajow lejanas JOIN spueg pjen8 agi ow! 13Tp spear.' ow se Mous o1 8uio2 alo3aq spuooas Ie.ianas 1o3 jeajo utewaj spe ainloid xoeqXeid agl `palsnfpe Xljadoid aoinap agl q1iM 'ajniotd agl aziiiqels oi jojiuoo auil aql lsnfpe uow `ieuuou spunos oipne agl 'gun iojluoo asjeoo agi lsnfpd aoinap agi giiM 2upoogsaignojl OAJOS io3 dS ui papjooal adei e asa

slmolto Omas $uiloogsajgnojl uagM saelion aouajalal pue Xiddns-1aMod `xoojo -jalsew JO aouasald agl ,Cluan s,CeMid uoiloas ewolgo ow woi3 zHYniBS£ si jeudis xoojo-jalsew e jo winos uow -woo d alelado ol Jam ui ieais lnd -ui xoojo-laisew e aneg lsnw 9p -imp OA

-Jas jeliSip `slinojio ielAp iie quM sd sauigoew

asagl ut 1010w OW ljels-310!31 01 posn Suiaq uoilisod 1141 agl giiM `pasjanaj aje aotnap agi uo suoilisod goliMs agl jo asn ag1 `alo3ajagZ joiow agl Joist.; ow `agelion agl j3q4g 01.11-oi8oi pjepuels e asn uai3o 'vow pue lelspioo `djegs se qons `siajnloelnuew lagip ijels-xoix aq pinoM uoilisod Moi atg pue uopisod dols agi aq pjnoM goliMs agljo uotitsod 441 ow `sauigoew 4o1-aslanal ui joloui agi jaMojs ag1 `aeljon i011u0a agi jaeq agi `jolow ag1 jalse3 zip `a2elion 1011

-uoo ag1 jaMoi ag1 `si 1eg1-0i$01 asianaj sasn XjjejauaS (oiuoseued) eligsns leyg '1alnloelnuew o1 jajnloe3nuew

111013 sauen oi2o1 iojluoo-a8e11oA aoinap ag1 141iM 2uiloogsaignojl jo3 ljegomoil lejauaS e saniñ L ain2[3

auT.i

iojluoo aelion agi 3O uoileuiwop jo3 aoinap ag1 wive 8ui1g83 act IIiM sdooi OAJOS ag1 asneoaq ssai3uiueaw aq iiiM luawauelle 'aimed e qons way pawel -qo slinsaj 1saZ -wimp ag1 olui aoinap ow 'aimed ,Cidwis 1ou oQ aigeo jo10w 10 1o10w ow wail jai3ijdwe lojluoo -Aeljon ag1 loauuoosiP sXeMjd punoß wimp 01 sagoslle s,CeM1e

a¡qeo punoß ag1 `osid 2uiloauuoosip ale noX iailijdwe aeljon-j0iluoo aq1 sot Imp awl Xjddns-jaMod awes agi ol ieuiwlai ooA 10 anilisod agl loauuoo pjnogs noX `aoinap ag1 2uisn uagM

aainap aq; äuisa

.13 SS01oe

jolstsaj 2uidwep e ,Cidw[s si 921 sieu -8is asagl 10l punoß 01 wed aouepadwi - mat e sapinojd ' paads 1o1ow

lo jolluoo oilejla 2uisneo `2iDA ag1 ow! wow Lueo pue sieu8is asagi jo awos dn

xoid o1 aigissod Si 1i `2IDA e 01 aoinap agl loauu00 01 posn sajiM dn-xooq

8Z a8vd panupuo,9

Page 36: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 Jegolop Mo/ougaal 9 6u¡ainlas aluOmjaa/3 Z4

-WOO ui uolluana.Id ?IiEds oi1E1S uo suo -on.ilsul alp 2uidam13o imp si lalunooua aM saoilaE.id oluon lsow ag1jo aup

wagl .io3 sainfilsgns Muid knq ol si 1i ugg2 s.IaRIEgo 0141 alguiwiia 01 iuuuodwi WOW au3 si gsoRsgid p.repuiiis ag13o pu lai sotlsg[d Muid 0g-4

knq i,uop noX 31 uang sauo Swonpoid -a2.iEgo `p.repuEis 0141 aavpdaa of isixa soifsuid oifgisifuE alutd ata Sinaw nElnga1 sauo iga o1 2umu11u0o inq laiP 2Ua2uills g uo áuioñ su snoinoipu su Si

naJE OIfulSilüE un ui soilsEid uiEid MoIiE oZ (Muid paaoioo kiuguipao 01g asagl) Xlod OilElSilun 3o spuEJq poo$ 14uM

paoEldaJ ag wogs /imp :XfiiioE3 2uioi -AJOS a.nfua a141 wog palguiwga ag isnw swuo; puE saiggnq 2uiuoigsno `saxoq awl `s2uq ,iiod (oifulsiiuu-uou) u1EId sagqwassu pug sivauodwoo an2tsuas -asa-01 gonolddE JEau uana JO-1.11iM louiuoo algissod Hu wog panowaa ktinoi2gwaisiís pun kIsnol3gaJ `Xlln3aJgo ag 2snw soifsuid 2uionpoad-alEgo 'weld 0141 os `palanoo ag isnw saoE3lns 'MOW Jo uoglEo 2uionpoJd-3ilgds llg sg lsnf satasEid äulanpoad-aaaEqa a;Eulunlg

spagoq wimp 2uiuinf -UO3 saxoq puu egg oi saliddg aidiouud iEoiluapi agi iawnua Jo ollsuid Japun sJaki 2uipiaigs 2uiknng `sgotplJoop agi luiud ,iagi MON sagoli12 In3uuug mph -101410 Jo swEßo1d pagsgJo ui pa2lnsan uaf3o muds sasagZ saiooi maw pio a142

ig sllEds MOJg1 snaóu13 ugwng palm lgq1 plural sum 1! asnuoag aamd -WOO uJapow kuE 3o aoE3 amino alp uo maw pasodxa pug 02 aJEJ Si 1! `JanaMOH 031il 0141 pug 8uifnld knnag 'wow a11M `,iE1ds-maw sg gons 2uipiaigs 3g anEg 02 palinbaJ si naindwoo awoq ulapow au :mod u1 asu3

.swan !pm 2Ou2u0O

uo uoifonpond-3lJgds agf sluanand pgafsul 1ng `saUJado.id 2wpialgs s11 gf1M saia3Jai 411 ÁgM OU U! SnI1, slguOiEw anlndissip -olluis Jo oilglsiiuE 3o slaXgl uaaMlaq pagoiMpuus Jo 141iM palanoo ag wogs Jake' anllpnpuoo a142 `asgo ÄJana ui luanald o2 Papualul sum 1! acuity (EH LIZA 0141 Jo iauuosaad 01 313014s `slaogs 'weds asnuo 01 pasodxa ag wit wogs p0apul pun iOu paau Ja,iEi aniionpuoo agl

ing 21qpiaiqs sup apinold of X2inilpnp -UO3 luaiai33ns JO3 papaau ag 01 1112no142

a1g slaiigl uoq.iEo io 1g20w-Juipiaigs otinfs wial $uipEaisiw ing pafdaoon Xlfuallnp mg JO mig `32I Jo.; Ja141agM

-papaw si 2utplai14s uagM uang ananp usg jo asngo SuipEal

E ag oi pug gogo.iddE $uO1M 0141 ag O2

paziu2ooaa 2uiag 1sEl 1E si ()pads n) usi fuanald 01($ulonpo.id-vuds a.iE 14oigM)

saon3ans antlonpuoo pasodxa 2uisn jo pogfaw paidaooE-2uol agi `alo3aaagZ

aEwnp anEg 1,uop no,C

`3IJuds u anng l,uop no,i 31 `luEogiu2ls ag 01 Ma3 001 suolldaoxa g1iM Main 3o mod (Ng un won3 XIa3E8 01o3a12q2

pun XIMOIs WOW 1lq u `Xissapiauds s1o1

-onpuoo gons aOJ3 amp a142 33o paaiq soilufsilud Saofonpuoo paaugo g1iM foufuoo uo ,ClipuaJ 2wonpOad jo aiquduoui oq isnw big `luglJodwl alow uana `pug sigualga 1a1410 wo13 Uoif -uredas uo sango 2ulonpold jo aiqudno -ui ag lsnw big `si wig :anuydzsszp alms 10 atlyisuuy ag isnw Aa141

`puafsul sa2nugoslp 2upIJuds aonpond 01 q$noua ani2onpuoo ag Janau wogs sivauodwoo O1uo12oala anllisuas-opufs 14onol IMO wig saou3nns 2uiuoi14sno JO agO3 JO `saOE3lns 2ng Saog3Jns xoq-a1o1 `saoE3Jns uoifEls-vom IId

1iJEds aq; a;Euluilng

2Ouiu0O 01uI awOO 1g2iw sluauodwoo pa2JEgo 2uwlEluoo panoq mogo-paluud u JO sluauodwoo paRlEgo XI1q2iis gp114M g1iM saon3Jns 2uionpold -3ilgds gm naAO Ja,(EI ani2Edissip -ol1E1s Jo 2ui2ginsui un 2nd wogs

`3lJnds g gons luanald ol `a1o3a1agZ 3llgds u 1s1saJ pinoM goupIloop paluigd y paoao3ua puE pooisaapun kI1sga 010w qonw awooag (arum) Qsg 2uiluanaJd) 3lnnds 0141 2uiddols 3o spOq2aw aq1 `padsgl2 s1 awolpuXs qowiJoop ag1jo ldaouoo 0142 00110

uoslad 101.110uu

jo upis a142 10 aog3Jns paog3-uogagO JO IE1aw E lg 3IJEds g Mo1gl uEO 2Eg2

Jofonpuoo u uo amp sfi aonpul lsnw lnq nauugw 3uplJnds E ui gowIloop alp kg pa3JEgoslp uaaq anug lout

Ptnoo aios aogs 3l2sEld JO Jaggn 0142 lggl afoN (asEo 51141 u! unis Jnok)1olOnpuoO

uos.iapuy 3 UEQ fg

'wen uosiapud;o luamsaid si uoslapuy

Isamu a1413o aon3Jns alp uodn `pauassal lEgMawos `a3JE14o 51i saonpui uagf pug uoi2Enudas paarego sawooaq `1adJEp ÄJp g w0J3 palgJEdas 2wnn14 `alos aogs Jnok-uoilonpul ,Cg pasnEo skEMiE lsowlE si a$nggo 5i14Z paalEgo awooag isnw saou3.ins anllpnpuoo alp 3o auo `aogid axgi uEo agnngosip n mops

aEwgp Qsg 3o 03110piwl ÁJana XIlEnfain asngo slguafgw 001141 asa14Z 'wams ugwn14 pun uog1EO p1IIE1aw 'maw :sauo In32uiugaw 001142 /Cluo ME maw pug `saoE3ans anifonpuoo uaaM1 -ag aogid swim adki 2ui3Ewup jo usi Iln klignlJin `paapul qoux ow 3o wens maw aql pun aoE3Jns unis Jnoi( jo 1aki moms ,illgs a141 aSgO 51141 ui `saoE3lns anuonpuoo uaaMlaq pauaddng 1lagds

a141 1E141 `OO1 `afoll uoglEo JO maw 14ono1 10 spug14 aIE14s am mg /Ciana ,CIIEn1J1n uaddgq saalEgosip ollu2soJl -pala 142nog2lE `a2uilon JaMoI 3o Nnnds u lpalap 1,ugo sunwnH AOOS`£ ism ig 30 SEM `1i 2[a3 nok 31 `31lnds fE14s ñnJ kip u SuissoJo nagg gotnlJoop palgid -maw E 14pno1 noÁ ua14M apulm wok Jo3 SlunoppE Amp Oi2g15 u ,ilsnolnaJd SEM iEgm 30 añlEgpsip 2ul2EwEp `piduJ `xaidwoo u Jo3 anal aldwls si14,i,

31agds E si Qsg lEg2 puElsJapun 25113

fsnw nok `(Qsg) a2.ingosip Olfuisoaloala Cq pasnEo aSgwgp 0141 puEfsJapun o T

Iuagl Suz -ulvluoa saz7qurassv ali puy sluauoduroo azuoqaapao.razur oi a3vuwyp usg ivana.rd uya imp saop iz iyyM uyyl .(alifzr 'Sump sdois ((zpzayf ali iyyni uaifo 'SOW sf

fuali .rof sae; ali puy 5./01.19 pan.rasgo 4uofuuroa fo (Ciyuru,ins paj'fpdfuzs y sz a¡azily snpZ asn ut spoz¡iaur ayi uvli isoa ssap ¿V uaifo 'papaw ag rCyul

Âali dpduns mop utySy puy uro8y uzyyd -.xa puy aprnu Suzag s.raua azuvs ayi puff cCpivaisrsuoa ani `s.ryad ZZ isyd alp .rano sp.ry2yy (Qsg) aäivflaszp auyisariaaza fo larvas uz safilpyf ssapunoo Suunoi uj

spaeze4 0S3 6une2o, \ IDIJó(Is

Page 37: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Et Aóolouyoal 6u¡opnias s¡uoa»al3 8864 JeqOioO

pie° Ada uo (OZ) alon°

xej %L "satl li Ole aBelsod iol %9 ppy

aelueieno pallwil JeeA ¿

Hoeg AeuoW /ea gl

)ISV TILL-Z6Z-008 5)009 11 `PIai;Jaaa

seleS $90

(xew ° , aatiueieno

JOTdlt/O I:1Od 01L0-I4S (Zl£) pooMasoa Se1''oul

,,,, siols!sed 'sJolioedep

'siolonpul semseaw

0081D1 18P°W

568£ LS

I01161a

;. 0009 yIiM suopound 5

VOOSI WD

l'Poyy MA S6SSS ,e+sel

suoi j puo dop yalM Je+awlilnyy le+ew 1lD1

su oued Apeels )430J Ol Alsnpui ¡NI ui lse%

56'69$ --a OOL-JS

Jo+oieue0 enuerLeAuoD JoloD

566915 saneyy Boluuy /M 099-dX saliddns eleJedeS E 'luoo ilwn ¿ um

paloslwd llnoil0 i1O4S `Peiein6ay ÄIlnd

Vg @ A5 .s ,.ar ,. - V @noao ;,e m, .. inkr V l eb AOZ-o

96'6£ls S9Ldx IePow Älddns Ja^nod eldlJ j loalBla

6L LS Jeleyy beid ZHWOI nuyi l Aouanbaid zH WZ ol Z 'dwey

aiBueul 'auenbs

26'6SL$

Je+unop beJd 1i+iM

Jo;oJeueo uoipund

lnoyll^^ 5108dJ

'eslnd 'euls

-.t er,.,.,,,. ,e.

9108-dO S6'64S zHW99 eqoJd edooS ld

S6'6ZS zHWOo) egoJd edooS Zd 6EZS PeleJqlleo Ain zHWOI 000C -S

lenuew 'saqold zHW00) xo) 54 OMj /M 66£S eoeJj lena zHWOZ ISZI-OW 86S4 a°eJl lena zHWSE ZSZ1-OW

sedo3s ZSZI-ow .

86P$ ` ®..

i S3DIäd 1Nf1ODSIa rd SlXlaO2ld OJN313 -, ..__

6L1 aoeJj lena 669$ a°eJl Iena 6b65 aoeJl lena

9831-$ zHW00l 0901n 4unopsia

zHWOZ ZLZA zH WOb ZZtiA zHWO9 099A

, e

,`'a

%SZ -SL

S3dODS IHDVIIH

anllonpuoo se si Jo `uogieo io 'emu' jo apew si aae;Jns ayl `uo sao81y8ii a113I aqoid all gpiM aoe3Jns owes aiil gonol pue uoilsanb ut aoe3Jns agl oi pueg ouo gono) uall `8uiuoloun3 st 1 3i aas o) pueg low al1 lsule8e iool agl xoago pinoM na( `anponpuoo ÁiBupiJeds si aoe; -Jns e 31 pug oj agoid Jalo al) 8ulaq pueg Jaglo JnoÁ LjliM 'JaJiaalo Álinwl -uoo papueg-ouo e se suoiloun3 aoinap all `a.io3aJal,L ginq ag11g$ii 03 aog3ns

IIi^n ssoi Jo MAN lnoqe;o saouelsisa21 luiodaseo o) agoid way lüaJdno ag) palonpuoo seg aStlJns Ápog _Ina( 30 moms 01111eg18ulleoipui 'slg8ii dun' poi ow `pueg Jaylo ow glie+ padseJB sl aqoid agl pue pueg ouo ut (pouod e uo ism pinom mogul; Ina( aJalM) mod -aseo all le Nog si aoinap al3 3I 'silo° -N ASI aaJl) pue Imago pazuo)slsueJl e suleluoo gJaglo ow le du.iei poi e pue puo ouo le agoJd e g)lM;gBlivad Jo lg3iilsey prod e saiquiasaJ i0o) azis mood aga saoe3Jns 8utanpoid-veds JO ani)onpuoo saJnseaw low spa

sloa33g uosiopuy Áq paJnlae;nuew `gsegdeZ e paiieo aolnap e osn ol st Jauleluoo uieo3 auaJ -Á)S mum) u way ieilualod a8eurep usa 3o aouasqe ay) Mogs 03 ÁeM aup loeluoo uo minds put uoisouoo asneo ueo leg) sadÁl paz! -uoqJeo anisuadxa aoeldaJ `31uld paioioo pue mum 3i `ue° sweoJ gonS Jalaw otiels e gilm pa,ioago 1! 8ulneg lnog)lM ÁJlmona Jeau Jo u0ilels ay1 01 °iiseid pagl)uaplun aslM -Jaglo Jo 31114-uou e 8uug mu wogs al leg) aas ueo JoleJado pauteJi-3sioM all uana sngj 8uiuleJl oilelsilue smut Jiuld palda°oe Álleiaua8 ow 01 uuo3 -uoo /(0111 1E111 osie lnq paddip uooq aneg Áag) Imp saleolput Alpo l0u goigM `Muid

lno awo° Áagi )eg1 os poppe Joio° pooj poi g3lM suolinlos oilelsllue olui paddip oq Áitsea ueo suieo3 QUOI/CIS a1llM

saanseauJ 511e1s-11ue aal1O

-ue Jo3 Joioo paziuBooaJ pue paidao -ou ÁiapiM lsouz all ÁeMe pue .ie3 si Muid

`JanaMoH (uoseaJ JanalegM Kg) Muid

JOAO )i JalaJd ognn asogl 103 Ájod ailelsil -ue JO suoisJan aniq aniloa33a awOS osie oie magi, ./(gi!quomp Jo3 oweu maim -oe3nuew all TPA paJiJew ag ol SOLi8-g - IINi 8uilaaui asoll se gons s8eq

pgdS-'IIyN IIe mg) saJinbaJ Mou maul -uJanoB aiil `axli agl pue sailJadoid )soi jo sauols Jouog Áuew Jo3 alglsuodsaJ ale g°niM Álod 3111id OOZI SdJ?I leui8uo s,puowgoig 3o suolltlnui Jood ,Cueui alp jo asneoag `paapui auo goea jo uoi)elndaJ ag1 pue aweu pueiq al) moud o1 pasinpe Ham am nor( ySnoy)ie `punoge s2eq otuelstlue Muid poop Áepol aigeaoilouun )soucie si Áiod ureid JOAO aoud wniwaJd asoyM `s8eg ailelsl) -ue muid g)lM Jo Jaded gliM s8eq gons

aoeida21 aiagmawos maim anilis -uos e goeoidde ii1M 8eg ow leg) ÁiJeQi°

salels enti s,Ágdanyq anlllsuas oilers mu aJe slualuoo s,8eg ay) g8nogl uana `gouaqpiJoM t goeoidde pinogs slioq put slnu jo iin3 2eq Áiod uieid oi1

salid ayl uaaMlaq paunq 8uipiaigs-g?i Alan

Imp JO 403 e pug antg pinogs ll `laÁ

Ja13ag -laded alljo solid BuplJeds-uou °g) uaaMlaq paunq uaaq anel wogs 11

'moms e se uogJeo all asn 01 sum ueid

ag13i .uleld uayM a8ewep usa asneo ol xoq e gons 3o Á)iiige aip auluua)ap ,: sgouvoop 8uionpoJd-veds in3uueg Áiletlualod mu! saoe3Jns Jlaip span -uoo golyM `ianboei uogJeo gliM suopeo pale8nuoo Jo soxoq pieoqpJeo luaoouui BuAeoo uo Áauow puods noÁ aJo3ag

pJezeg usa ol3slleaJ ou a)nlllsuoo `8ulipueg ÁJeuipio ut pagoeaJ luawanow 3o spaads all le `pooM pue uo)loo `Jaded-pmieu posn oq ueo siaded ayi Jo `suOlsJon ollelsliue 3111d

guM paoeidaJ ÁiipeaJ aq uta wog ueaia am all pue soilewaqos `saJn)old dami 01

pasn sianoo 08ed-31oo42lou alelaoe agljo awl sl awes al j aounlsip awos aunb le smolt' ollels god at aBJego oilels g3noua Limo goiim `siaianeJl dogs iÁuln uow

waqll ao, sapnimgns Nuid Áng si 1! u>uqi

saa2aeqa alp amuiuliia o>1

lutwodun 3.io111 an3 Si II

uoiuuBooaJ Jiatnb Jo3 `seaJe Á.zeliliw Jo 1E1.1191117411 u! iensnun se lno spuels muid pue 'wpm!)

Page 38: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 iaqoloo if6o;ouyoal g 6u¡opuas o¡uoiha/3 1717

piezey aS3 io )1oo1-Is e-eoe;ms ayl uo lelew io uogieo pesodxe eney Äew yoiyAh `s6eq Älod yllM snoilneo ae

sluaw6as a31 eyi ewos ;0 6uily6H ayl Aq umoys se Sam

ein y6noiyl a6ieyosip ;o ap{oiil e sesneo Äeldsip a31 ue ieeu dus edel ey16ui6uiig dus pelloiun ayi uo pue poi ayl uo se6ieyo eUsoddo saleieue6 edel plops 6wpoiun 'eieH a6ieyo oilels leilueisgns e dolanap USO suoiloe snonoouw /(l6wweas uan3

pidei Allualoin Si uogeiedes ayl sselun smieds ou sieay 'ianemoy `oipei Ägieau eyl wayl anoqe paleiedes si edel se dolanep se6ieyo allsoddo e6iel Ahoy Moys sielew oilelS

dnplinq oiwls 6wsneo lou aie ayl pue si(eids azaai; `sieolwayo 1osoiae leyl sins emew L

stool lenowai-iaplos wnnen aa4-oilels asn g

walqoid oS3 egi sueioluyoel pwwai leyl su6ls pelsul g

youeq mioM ayl le sdeils 1suM 6wpunoi6 }0 6uueaM eyl aoiolua s/(eMiy

siaonpoid mieds pue siaonpoid oiwls lo aouaseid ayl iol >Ioayo ol luawdinbe lsal asfl

alqeoydde aieyM s6uileoo oilelsilue Aiddy

.sollseld 6uionpoid-a6ieyo aleuiwi13 z

saoe}ins enllonpuoa 6ulonpoid-mieds elewwll3 '1

aoeldblionn aya ul spiezeti 0S3 6ul3eugull3

l emu

-xa lelaui-anlq io sgeq /god anilonp -uoo reiq ui paguxoed uana saunlawos io `;Iuluoiysno adXl-aiggng ssaiioioo `Sutuotgsno wrojodls eligM `sdriM auai,Cgia,Clod weld gliM iaglla `paxord Xliadoidwt siaiddns io siopuan woij paddigs 2uiaq iiils aie sivauodwoo pue saoinap ag1 jo tCurw lEgl 2upou `sued luawaoeidai se gons slonpoid paexoed aniaoai noX aiagM Xilriaua;I inol lurid at'1 ui3aq am `paialsew sieluawepun3 Maj e g1iM `OS

anoa aga $upIeL1l

pasn aie sauo 3Iuid otlelsMIe io sgeg maw -paiinq ji sagsiurn iañurp agi ieinoel -oads aq ueo ,Ciddns iaMod e jo speal ay1 Suigonol áeg aoejins-pazillelaw io 2eg aiorlg e jo papa agl `paapul saoinos aAllon g$ig gonol ,Clluauanpe -u! 1! pinogs lauuosiad ol xoogs Inirj loa ji aianaS pur `uoisoiioo ouX1oi13010 aigissod `sapilird anponpuoo pag3nois

jo winos r sr pue pirzet' a$rwep Qsg ue sr grog `aouo le paoeidai aq ol spaau anilonpuoo si aorjins ioualxa asogM ;Irq Xud asn ol ajes saw ,Ciuo

agl aie sia,(ei oilelsilue glrauaq paunq /gaps aie (IIe le papaw ji) siaki anilonp -uoo asogM saxoq io erg 2u1Plaigs

s3Iieds asnro ol rug mou si paunq Xlinjairo os gouoIioop ayl `aseo iaglia UI aoej -ins iaino sii uo uopezillrlaw g1iM 2eg e `asioM uana `io ffeq paoej-uogieo xoeiq e iaglia a19r1 e gons uo aoeid o1 asuas ap -III saVw aiojaiag) lI alieds io &iego

1ou IItM Áag1 2uiuraw `annrdissip -09w1S i0 aIIEISiIue MOU aie sdol gons `Xiirsianiun lsouite `aiojaiagi aid -oad OI aloogs uana pue sa$iegosip Qsg Sunlirds pidei pasnro Xagi snopiezeg aq ol uMogs uaaq aneg gioq asneoaq saoejins jaals ssaiuisls io uogieo 3Iorjq papuawwooai-aouo 0g10neg i02uo1 ou Suoliels ?lioM pue sdoi awl uiapow

(siaXei otleispur paianoo io ianO paluted aq 01 paau gott'M saorjins uoqieo io maw Suionpoid-3iieds agi-<<sgouvoop aql puij ob) gsrljdrZ agi pue (siolonpuoo-uou io s3ni 2uionpoid -aSiego agl puij ol) ialaw oilels ow spaau auo `inol e oral o1 `sngZ

pirzrg Qsg ue aq ol su anponp -uoo ,Cig$ig os Si sieualew aigeaaiego -uou ag1 jo goigM 1101 01 posn aq uagl LIED gsrljdrZ aqi IIiM saoejins opsrld anilonpuoo-uou io uounuoo :purg law agl ui ialaw agl Ol aRiego ou Mogs `aIil ow io 2utglolo lsuiae mjOils r Jaw 'Wm piing auo w dn paxoid xoq io ;Ieq oiwlsilue io anilonpuoo d aou0iajai ,Cp

-urg e-wow 2uiloauun iakl wams ow ol onp irpuaiod awes agi 1e XIlrouloala air spurg oMl alp aouis 'punt' iaglo s,auo le 2utluiod ,Cq paoiaz aq wogs Sialaw gons Hy enoiglxlrM GBH io inol lurid e guiinp paialunooua suoutp -uoo pue sieualew jo uoilenirna Iua2glal -ui ue óuoirw ioj low aigesuadsipui iat'lo at'1 si ialaw olwls plag -punt' d

Xiajes saonap pairgo gonol 01 anponpuoo ooi aie goigM jo Ile `wams uewng se

Page 39: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

pie0 /ldaa uo (l¿) aion0

L881.-6LE (800 - '111gO uI 80096 `d° 'llagdwe°

b699- 9£5 (009) 'any II80 9091. dio3 ®131N31 ¡noA dlaq or' Asea ;Ino!!!!P

aq; a'{ew am sa6ne6;sa; a0A Jag;o s,la;ual pue asag; uo sl!elap a;aldwoo Jo; puas Jo Jagwnu aaJ; IIo; Jno IleO

63$ - SHA/allasse° 1S3.1 9Z£$ - INfI-LH-Z1

uo!Ieol;!oads weJ6 gE ol EZ °gI u! pau!elu!ew s! ;! ;! au!wJalap ol walsAs Mee uo!sual aJ!;ua agl pue uo!sual'{oegplog ;o uo!Ienlena aouew

-Jopad °l°ldwoo'Ise; e siano (6u!pu°d waled) °Ilasse° 1S31 M3N s!41 oua;awoia;ual ag; q;!nn asn Jo; allasse° 1S31 M3N s,lalual Inoge'{sy

i146!J 1! op '6u!ssan6 dois 6u!ssan6 Aluo aJ,noA uagM Io°JJoo oI Ilno!;;!p swalgokd;o Jagwnu e asneo ueo uo!sual °del luel.)odw! s! uo!sual a.)agM speaq agl Jeau qled adel

aql u! Ino apew aJe s;uawaJnseaw uo!sual «pia!) aql u! pa!;IJan Al!se° ag oI Aoernooe agl sMolle pue SJapJooaJ SHA;o slapow pue spueJg Ile uo MJOM II!M I! 'lesJan!un os s! oJalawol°tual IzVfI-LH-Zl latU°1 a41 plau ayi ui nnou sauiypeua SHA agi ;ley uey} SSG! uo )AM sallasseo uo!sual

aBneD uoisualmoe8 IBSJØA!Ufl AluO a41 Jass Auvduioa lvy1

zuo.íf two! uo aS.rvrp fo aa.íf aygvJivnv a.rv sadvl asar¡,L uozluana.rd a8rnuvp QS3 uo suopv7uasa.zd padv2oap7n s uos.rapuy ut .zvaddv a1aza.rv sup uz suopsaSBns ay; fo duvyv : alou s .ropP3

"QSg Aq pasneo sasso! agl ol paredwoo lEwiuilu si psoo ltuotlrppe arl `.swtoy aligM !iE °outdo.) pinols sweoy oilelsilue xuid saellon oilers atgipa.)oui ale.)aua;I ueo Alod sua sassaooid gons ui pasn /god Ausuap

-qSiq `anlq paialunooua Atuounuoo alp aoeldai op A;od oipepsrpue xuid e asn sAtMle wogs 24exoed ao9d-ui-weo3 sauo a;qeaSrego augM all Janau 'HU -°soct weo3 aua.)Als oilElsrlue xuid Atuo asn `algeoildde yi `seare ;Iuiddrgs uI

axids all aniasgo pue ralaw e JOAO Iapow anlq e Ja;l$ul Atdwts :mug sup Mogs sialaw oilelS 'sadAl aaJy-oilels g1iM warp aoeldar `skaxons Japlos antq uounuoo asn Janau `gouag SwolnraS all 1d

"10U ;pm Jool; paleail -oilelsilue Aliadoid t uo SuixleM taps aq1 aS.)ego !Pm solos Jaggn.) g1iM wool; anuonpuoo uo Suix;eM op slew pue skoou anilonpuoo se sdEus logy Jo saogs letoads aiinbai 1ou op pue kid aSel -uaorad poo8 e aJE Jaunt alp gSnoque `sluawlEaJl JOOIy orlElsrlUE moods op su `A.)essaoauun awooaq slew .)ooty `pasn a.)e sdEJls 3suM SuipunoJS yi `ostd panrasqo Allualsisuoo a.)e sapru al1 yi aSewep (Ea asnoq-ui !te luOnaJd IIiM Seq Suiptaigs-oilels Jo xuid Suipunoi -ins agZ pauiwiad ssal ronw `a;gissod ag lcu wogs sup pun `spitoq paSSEqun JO paloalordun ronol louueo OM goilM

ui weld e inO1 Amer am ;aÄ sotlseld a;qeaS.)ngo jo map ag wogs eaie aq1 pun `sde.rls 1suM rSnoirl papunokS Aliadoid ale ogM suos.)ad Aq suoiln;s x.)OM lE pauado ag Aluo wogs saxoq io s2eq `aJo3a.rags saoinap Suigonol way siolonpuoo .raglo io s.)aSuiy paS.)Elo Alqtssod `ltnseo alp dam 01 si saxoq pap -pi; JO sSeq opelsilue g1iM sluauodwoo .)o spkeoq alp 2uipunoiins jo eapi ar,I,

sdtag osle weoy 'luid g1iM saxoq gons Suiuii io 2uiwol -lgg sailqwasse JO sluauodwoo paxeu i°nau `sluauodwoo paSSEq-xuid 11iM Aluo warp asn io `SuixJeds luanaid 01 saxoq angonpuoo xoelq ranboel io Wied sauo oilElstlue AlluauEuuad gpiM saxoq apgl 11E Sutotldak uegp alEipaulwi wow pue anisuadxa ssal JEy si pue papaau st dip Mau e yi auiw.)alap o1 sgluow yO

pouad e iaAO ratio 01 noA sMolle Suilnp xuid Aip Amp uagM sraxoils Jaded

palep-xuid gliM palagE; pue lElsilue uual-Suot e ui paddip aq wogs aarego 1Er1 asOL(,j, alilxal Jag10 io anaajs e g1iM aouo SUixoJls Jaye uagl Isar le ialaw or1E1s E guM saxoq au» oilseld xoal0

'Alluanbaiy uoiloau -uoo punoiS-op-lsuM xoal0 AEpol puarl ag1 si se `alge.)aulnn MOW uana M012 saoinap Oq1 uagM Aep all Joy ugeg alp WJOJ 01 AeM Aluo am si sigy aniusuas -usa sr min ar1 xurgl l,uop Aagl yi uana `xrgM Aim Sumronol aioyaq dells °g1 uop 01 kaxroM ag1 purwar o1 uoilels AJmna

le Meld aq Ptnogs («dd2I.LS .LSRIM V DNRIb3M 32Id rIOÄ SSTZNn H'IQNHH ION OQ "S.LN3N0d -NOD 3JdYAIVQ NVD HJ2INHOSIO OI.Ld.LS se lons) suSrS

AJlnoiio ani; sloeluoo Suiploq

OJE noA 2eq ;maw t Jo noA yi Apoq alp gSnoigl ;ua.uno Suiliwi! Aq piezer xocrs luanard O1 Aepo1 punoj AlleiauaS

si am lEuiwou E enogl[E `umuziuiur uxOSZ jo aouelsisa.r t ureluoo lsnw sdekls lld dE.rls 1suM papunoiS arl se luiod awes alp 01 papunoiS ag Aew raAE! anilonpuoo alppiuz all `pasn aie Aarl yi ing `Aiessaoauun are sdol leioadS aoiyyns ugly) rolonpuoouou atgeaSrego -un iaglo Aue ro pooM jo sdolalgey gled sup 01 aoutlsisaJ sppe pue saleoild -woo Alssatpaau porpaw sum, punoiS 01 dells alp way oriels alp Aanuoo op dol algE1 e jo iaAEI anilonpuoo paunq alp asn JanaN paknsse Si punokS 01 uop -o0uu00 am puE pa.)aqwnouaun si aoey -ins awl alp 1Er1 os °Spa lucky sl! Japun lnq atgel alp yo aoeykns alp uo lou luiod punoiS e 01 dugs art loauuo° lsoo ;up! -ui uo dwixs 1ou op pue spuekq alquilar paps `aioy°iagl `.ylasli xsap ar1 se Suot se lsowln 1st! ueo dells apew-llaM e asneoaq luawlsanui jElideo e ale sdeils lonS sueioiugoal palE°s l;E Aq sdeJls Surpuno12 1suM jo 2uueaM Akolepunw roy xoag° stare Suiornras ag1 olui up

Atqiadns saogyns adolanua oilelsil -ue xuid t `slualuoo Jaded alp mauls 01

Aiessaoauun Atuielrao si u `aldwexa.)oy `sralaneil dogs jo OM OLD UI Aressaoau st Suiplaigs uagM s.)aAe; maw paling Alayes r1iM deg SuiPlaigs Aluo asn 01 pue sdekM anlg ro xUid Suixkeds-uou atqEldaoot asn o1 sawed gons jo siagd -dns io skopuan ar1 asinpn pjnogs noÄ

UO11Els 3110M e iEaU saoó wau all aioyag panowaJ put paualsiow ag lseat 1E wogs SuiSexoed Jadokd -wi leuiSuo agl Jo `Allnyaieo paSexoeda.) Oq wogs slum! asag1 jo ;;d sioua1

Page 40: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 Jagolop Moiouyoal ä' óuprniag o¡uoipai3 9b

osin a1n spuaiq luaiiaoxa;o laqmnu d soilsnld

aims 4ptM ma! uno Áa41 pun siosolan SE aigEllEnn lou a.in ÁaIIp `aignwwEg 21n

siogoold sa3nunnpnsip aiqnlou lElanas anEg S10goOIE SlUanlos asodlnd-iEia -u03 poo3 alt Áaql q3noq11d aotn.Ias plat3 OIU01IOaia 10; pasn /iiuoululoo a1e ioundo.Idosi se gons siogoold

soilseid;o sadil uinuao ut 3mIIaMs mum 01 /(ouapuap e aneq OS1e ,(agi suogaEoo.Ionijo.Ioigo ut41 alqtlsun aaoul Xipg3lls pun OIXOI

010111 a.IE `10naM04 'maws paleuuo10 siosoaan a.Inssa.id-q2iq pun spinbli wog SE aignllnnn am pun aignwwnp-uou OSjn

a1n iagZ XEpo1 pasn vamp olUolloaia 1sa3uo11s 041 a.IE `0ut41ao1o14olal-i`1`i se 4Ons `sluanios palguuo14o

a1nSSa1d kids iniliui psalnaa3 aqp apino.Id swalsiis psalm paiiadoad apixoip-uogaEo 1E41

palou ag pinogs 1I 3uldiM pug ,fEldslan0 314golEo .Io3 gloso 004 -Jug e 3uisn iianil -o040 paiiddE ag UEo slUanios IOS01ad 3uiqqnlos pnoqp!M ?jIIn3 pun asnal3 palsnloua Uana 3uin0wa.I pue 3ut3polsip jo aigEdEo amssa.id E g11M IUanIOs papnmwmooun;o Xiddns gsai; iillEnuil -uoo E aaniiap Á04I asnEoaq sUEI01U4oa1

tiunw 4 pa.ua;a.id a.IE SIOS010d .skids psalm pun pinbii wog ui palajjo /CIltoid/il OM pm sl0stal3ap in;.IaMod osin aaE suoq.IEooaon13o.Io1q0 aaqqnl pun soilseid 'swim Isom 41iM anuoga.I -uou pun Oixol-uou `aigEwwn11-Uou a.IE

Xaq,i, Spua3e 3uiuealo awls ,i[ieoiuíago ism! 041 a1n `(aueglao.longuloioigoi.11) wows 3 i 031[1 `suoglEooaonpo1o10

spuaiq pun S1o400iE `sluanios papnuuoigo `suoqlnoolonjoloigo :uoplsodwoo ieotwago uo pasnq sal,Io301Eo .Iofnw ano; ow! papinip aq IMO slumps 3Uiunaio OIIIo11OaIa `uosund -woo jo asodlnd agp 103 alaq paaapls -Uoo aq 111M a0U2IU2nU0O pan SS0U2nIp

-DOW U1a;Es su gons smog.; anlloafgo aim 10410 `asn liiM SUnI0ImI001 SluanlOS

3uiunalo qo1gM auiwlalap ua13o ligng pun aoua.Ia;a.Id iEuoslad g3no4p1d 3uuapios nun xni; oiUaIo 3uin0mal . SplEoq linonO pun spon;uoo 3uisea13ap .

swsiuEgoaw 1a1Ui1d &iugaio . sluauodwoo anup

pun spna4 odii 11101; sapixo 3uinowal . :ale SIUa3E

31iunaio pun sluaniOs ;o suolpn011ddn IEdiouud agZ luawdinba inzagduad put s.íalndwoo wag Slunuluie1U00 3uiligiqui -aouEuuo;.Iad anomal 01 w.Io; pinbg pun !Osamu wog ui aigE11nnE aan 91.133E 311i

ueap pUE SIUanIOS ;O sadKp IE.IanaS S1113313 3aiueaia pue slumps

a0unu01Ulnw antlUanald JO a1tgS 4041 3u! -op 1o; s.Iasn-pua lapndmoo 4 pasn aq ,CEw 1E41 slonpoad aOUnualUlnm au1llno Xpauq tIlM uolloas aagloud ssauanil -oa;;a pun iillniponpoad 4041 astaco -uI o1 pau3lsap slEualnw pun sinoiwa4o ;o Isla 3Uiddogs e 41íM suelolU4oal apin -old !gm slonpold 2uiunaio ,i3oiougoal

sa!uaIuiaq0 10) juBJ[nsuoa leapuqaal e S! uapgO

-q314 `uaapow ;o Maina.I 3ioinb sigy sanbiugoap papow

-1no uago put aigEiia.I 550! jo .IonE3 Ui

moouano Xiluanbal; a.IE algtiitnE Mou slonpold 3Uiuealo pazilEioads `paounn -pu ;o Álaunn 041 `lanamog dn-piinq 011tIS pun UOISO1100 'MOM iEUOIpOId;

1SUIE3E uolpoalold awOS sp.IEdwi osit 3Uiunalp 1n04 dEil pun Xlinilonpuoo itoulo010 aonpal Imo 1tg1 SlUtmwnllI00 1Eluauluonnua 1a410 pur 05E013 `lsnp Samoa sanoma.I 3ü1UnaI0 :poolsiapun ,illsna Si saanpaoold 3munalo 1alndwoo puigaq nap! olsnq aqZ

sntdal ,Cilsoo ut 1lnsaa lEgl suMomealq put SSO! EIEp

`awllumop jo xsu ag1 s00npaa Äiluno -4iU3!s slasn riq se 11aM su siEUoiSSa; -o1d aOlnaas Ág aouEualulEUl luawdmba aullnog uollElado aal;-algnoll `paldna -.mum 01 Iniluassa Si smalsiis oivailoaia pun 5101ndwoo IEuosaad 3Uiun0io -Inotpou0d SMO1131 Utloiugoal,Clana SV

ua11ELO 119 441

anieumugew aalndwo, ao; sagiddns 6ugueaD

:a2ueua;uiew ani;uanaJv ei0

Page 41: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Lq Molouyoa1 9 6u¡spvas aiuo.qsa/3 8861 .1agoho

saidoa ooS aapao u.inuliuw. *

'179917-888 (£T6) :ZIZ99 SM 'mied puelianO 'T06ZT xofl

fiuitlsilgnd aapawl le aulotliNel-1 Ällall 311.1rn AO lleD lleis sales inoX stool

ßuliamieu,i leaIß pue 33eqs lealutlaai .inoX .iO3 stool fiuiuieal ivallaaxa act uea siul.id3121 * zanssi .iatlioue .io sttli ino

siumdai apple ßui.iapio tit paisaialul

SIMDIJIM ry

-uOAuoa aoueuaiuiuui Nag ui aleuipin ati ia33o squms pue spud pain.1nius0.1d aiqusodsip `suuiatugaai ODIA.10s 4í1M Kiuuindod ut 2utute2 Xiptdu2i

Sql3ALS pus sped palean;esaid

uoiluotiddu 2ut -uuap uolsloa.1d3o ,C.1ana.1o3 Äitilgt -xag puu giSuai joauoo 041 gitM saipueq uo (santsagpu 2utluutuiuiuoo lnogltM) palunoui Xiiuuuagi a.1e squMs dtlureo3 uopu.10ua-mou asagi `saduqs puu sazls jo luauil.1ossu Opte u u! aiquitund

saiquiae.1lx0 pue saiop.1ud jo a0.13 Xiaiaiduioo puu uu013 Xiq2nologi `ivaq.1osqu ,i1431g ag 01 pauStsap a.1u sionpo.1d ue-aqljo-aiuls magi sieu0luui opaqlu,Cs p0ouunpu .10410 puu gioio.1alsO,Ciod `uiuo3 auugia.1biiod jo sdli 411M apuui s.1oluotiddu puu scrums paztieloads jo Áiauen aatui 041 ut puno3 Si OAlluu.1aiie.1ouadns d

sqof 21.1!

ueaio Xuuui.1o3 pa.1nlxal.10 pazts iipaaa -.1oo lou a.1u puu lull 0onpo.1d squms uol -100 Äupó.iana `aiquilunu ,Citpua.1 puu aAis

-uadx0ut Onoqiid saou3.1ns oluo.11o010 u10.13 siueuiweluoa 0n011101 puu slumps ,fiddu 01 pasn ,CiOupno.1 uaag anu4 squMs uolloo pioqasnoq `s.1sOÄ ,iuum .103

saoleaiiddd

pauuaio xi 01 siuuaiuui 41tM suoiloea.1 as.1anpu isuiae suoilnuoa.1d su Ham su `saplilgeduo puu lualuoo .1o; iaqui aeXoud alp ol .103a.1 `sianpoad asagl óutsn uOgM iiititquuiuiug puu Xi!

-Allouai `tCouanios 3o a.1nseaui ogioads u sassassod puaiq gong aiquitunu ,iiaptM

Page 42: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 ieqolo0 A6olouyae1 v Bu¡a¡ivas a/umlaal3 817

'14313 aar; aignoil puE iruonurado rainduoa ow 8u!daax ut st aion siq 1Egn+ MOUni .iasn .ialnduioo aql lai moils suEioiugoal 3uioin.ias aai3 aigno.il pun Superado sralndwoO dam' or ram ui wrr30nd aauEUalurEw aniluanand OW ai lnud rtat'l op or roam gioq suo -tut'oal aOtnras puE srasn ralndwoD

dn-pitnq lsnp palEraua2-011Eis 3uTiionluoO aIgM slurutUEluoO aunoqrtu puE sito luud -ra8ug anguar Xia;Es snauEaia uaanas asat'u `3Isap aOi33O uE Ut pawls Aitsug reaiO uaanOs Olp adlM or lard Árp aar; -um E suIE1U0O mOEd puooas agi `.uoti -nios 3UuraiO-UaarOs apEls-pur moods E suEluoO raped lsir3 ag1, slaxOEd Ito.; utMl ut paiEas spud trim algEsodstp uM1;o lstsuoO Aro3alEa Stg1 ut suonpord paauEnpE pun luatuanuoO isow ag1,

spEd paualsloward puE skids iosoraE guoq ut algEitEnr are slOnpond 3utuEalO Uaaras antl -02.1j2 4I34-1 rOlErado;o ssol puE UlErls ab Ut uinsan pUE Uotstn lrolslP JO ltqtgut rugi slUuutwrluoO aeOw°r o1

papuaunuoaar Ait'Btt' s! srasn raindwoO 3utuEalO uaarOs LID Oipouad

asodrnd stgl ro; antlOa;;a anr IouEdordost puE luanios wog gEMs J O pEd palErnlEsard `algEsodstp u guM prat' at'1 8utggnnos uagl `sE3 passard -tom ;o 1sElq E g11M alElnOtlrEd anlSErgE aql 8utaai;lsng Aq pagstldwoaaE lsag st

BuuEala prat! °del atlauBEw `passnOstp Aisnotnard sd a;ti prag s3uoiord puE sluEutwEluoO 8utltgtwt-Iuu$!s ;o modal) s°nOwan sprat' Mtn Otlau3ew

;o aOUEualUtEw rasn Otpotrad ButuEala

prEogAax puE uaarOs ,L2iD puE lors -u03 atlEus `8uluEalO prati adEl OtlauBew su gans sarnpaaord aOuEualutEw wpm' IEOtlua AUEw uiro;rad AlrEln3ar molls

rasn pd agl `suElOtut'Oal IEuotssa3

-ond Aq pauro;nad ag wogs 3utatnras Jew puE snEda.i xaidwoa t'3not'lld

saliddns 3uiueap aa;nduiop

slElralEW luaOEfpE pm Aliliggrd -WOO puE (slOnpord-4 Awuin3;o uotl -rung; agl luanard or) Auiltgels uotlEpi -xo `saOE;rns 3uuogg3iau o1Uo daarO paiiorluoa `uoilOalond 8uivan; `Alt

-Ii1EIon Moi `Altaugni a.rnlEnadwal-g31g :saiiradord 1uElrodwt asagl no; xooi `adAi snii;O lanpond E 8utsoogO uat'M saOE;.rns OtliElau;O AltnutuuoO IEOulOaia

ieatluO agl annasard put a;ti at'l8uoiord slueauqnl/nauEalO lOEluoO `srolOauuoO OtuOilOaia alEOtiap rag10 puE sra8ug 8ut -10auuoa gDd O1 AIIEOtpouad middy

uOISOS3Oa puE UO11EpIXO

`8utuar; 'MOM InuotiOu; lsUre3E saae;.ms maw snotaard utgl-orOtw 3utnrasard ro; in;asn Aliutaadsa anE sluEatngnl/nauEaiO 1OE1uoO `spud panalstoward se IiaM su sAerds lOSoraE sr algEltEnd siOEluoO atuorlaaia aitBEr; 1aalord puE amar `uuaiO o1 pau3tsap arE sianpond paOUEn

-pr asagu `s1uEOugnl aper3-aug gitM s1ua3E 3utuEaiO Uo!slOard 3utugwo3

s;ueaiaqni/aaueap aOE;uoo

3IroMt'Ouaq awnion-g3tq ro; algEitEnr OJE sup uolsualxa aigtxag puE snug Aauluawaid -dns `saniEn amnia aigrsnar t'1tM

Sazts raBnEg uoperado puEq-auo ASEO

J0.1 saniEn 1038tri IorluoO aIgEUEn puE

uollEOtiddE lutodutd ro; sawn Otusuid

g1tM awga sralsnp 050141 JO AurU `sueO

au!i-ulis `luatuanuoO uI paBExOEd uotuEutwEIUOO

atdoasoralw ro a3EUEp antsErgE

;o xsu lnoguM ralsnp sa passand -WOO E wpm palma ALOJES aq IMO `ants -!suas Mot' rauEui ou `aOE;ms Xuy lugt

-UanuOaut ro alEudordduul aiE S1uaeIOS

p!nbti aragM suotlEotlddE ut sivauod -MD alEatiap 3Utueaia ro; algEnlEnut OJE Aiienaua8 siaisnp sa-passaidwoj

spruogAa1 ralndwoO puE sagaltMs `sgDd Aisnp 3utuuaiO ro; puE `BUturaia aro;aq sprat' adEi Ot1au3Eur way sluuutuEluoO anrsEngE BUlnowar ro; `sraluud jo unO

isnp radud äuMoig ro; in;asn XiIElOadsa

are A0111, luaudtnba raindwoa jo SUM aigissaOOEut emu agl uana wor; saiOpnEd pue isnp sanow°n AiluElsut lEt'l uopOE 101 in;naMod ramp!) siaisnp sa passandwoO `(auugiawononutporoigatp) uoqrEOorong lraut `aan;-arnlslow `uuaia AIIEOtdoasorOlU E way apEw

saalsnp se3 passaadwop

papuaunuoaan Alt'Btg

OM spud luanios `s8utsnot' luawdtnba puE slOeluoa `srolaauuoO a3pa 3utuEalO rod sEarE gOEar-ou-prEg ro; in;asn AllutOadsa arE puE asodrnd awes ag1

anras sgEMs jourdordosl iEnp!Sar-uou palErnlEsard aigEitEnr OJE IouEdordost 10 luanios rapa 8utueluoO spud aar;-ru!! `palErnlEsard `sustuEgaaw lrodsUEnu puE sprat' adE1$UtuEaIO rod

plag aql Ut S1UanIOs asuads!p ro Arrra 01 paw at'l aiuutuizia Aat'l puE `.sptnb!I paluutuiElUoa o1 pasodxa uou anu saOE;rns os `aauo Apio pasn arr Aagi `.asn puE aim or Asea

OM A0111, saBElurnpu 1OUtistp lenaA°s

ssassod strums puE spud paualstouard Wal! 8utuuaiO

pasn agi prEastp uat'l puE aOE;ms agi ueaia `laxOEd E uado real Aiduts srasn s1alOEd i?O3 irnp!ntput Ut paivas-gEMs dt1WEo; e ro ped glop u rapa-aOtnap UotlEOtldde uE g1tM uotlEutgwoO ut uuanios ptnbll ;O lunowu parnseauiard u utEluoO slanpord asat'l, aouat

11111111111111111111111111111

Page 43: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

64 JfBo/ouyoaj Bu/olNas o/uoJ]oa1,3 8861 Jago100

pie0 ,tided uo (L4) e13J!0

ELlO-LdL-ElS-1 1eo01 Z0494 HO uolAeO `IS ISJi j '3 04£

L£S0-8££-008- L 33aá 1101 11V0

ssäadx siasd J01d1)10

331i3 6wddlgs 501d

006-001'

0055$ # Jam)

(sJepiow Jo; Allenpflpw alge¡lene aie sail IIV) 'amen I!elaJ 00004$ V siagwnu

lapow 00Z JOAO pue siagwnu Algwasse sJaJnloe;nuew og JOAO 61454 aDuaia;ai

SSOJD aA)suagaJdwoo ino SI papnpw osIV ¡Aauow pue awl) 6ulnes 'Aep awes oil

sgof JledaJ dOA;o o/006 Jaw op ueo noA 'WOOD L OO1S JnoA u! 1°1 sill ll!M '(sazls

sups;;!p 8; ;o goea 01) sail) Jalp! Jelndod isow alai;o 054 suleluoo;pi Jelndod slgl

11)1 3HI1 H31Q1 80A

(4411114%.1111111",

6ulddigs snld

S668$

dw,

056-001' # Jam)

I Slaploel Jol Al lenpuopui alga -iene ale sped 0e) 00'011$ Jano lo (sop Jeleap IBWJON 'aseo,6

wnuapgAloyy (I)'SZ)AWVX (SI'6100AINVX (SI 'MOSIdLZOWVX (L) sdwel aruoseued 'SJolslsuee 6wsues LSL Ig l

(S) '4ol!ms umop/dn (L) S1.13e1(HNO),1'00000-111)(L-0-£1,l

( l)'00600-Co6e-o- eel (ll'00100-0090-0-£CI (2)'00£00 -poop -0 -COL Il) :oAues/lagsIJ -ll£lp9 ()) :(4oeiH'00900) (í)'£11p91

l l) '019051 (I) VOP -IZSOdXA (Z) '0000dXA (Z) ' IOCOdoA IS) '6Z£O0X0 (L) -oruoseued -10005-A1dN (t) '90001OIN (z) '0000101N (5)'.dlegs lOI sluawaoeldal Sump.. I,,

00'0e$ J050 Ones oste noi aAisuagaJdwoo sill

w papnpu! OJO sdwei pue 'sagollnns siolslsueJl 6ulsuas ')silo) gou!d

'sa!{gwesse Ja{pl >wow pue 'xoneu -6esj '30 '>Al '6unsweS 'OAf 'diepS Auos 'o!uoseued 'spAo¡i 'oAues 'iags!A

lyoel(H 'VOH JIedaJ of sped pasn Aluowwoo )SOW agi ;o 51' JOAO suleluoo

ll 'alglssod slga sa)lew T0 sped HOA ssaidx3 sped dap awes OUT sgof Jledem

HOA Jno/;o lsow op ueo nog( MON 11)1 S1IJVd H1Vd31:1 lion

SNb'IDINH331

IJOA NOI1N311d

I

. izaS. Qyr,i °Jfiaanaio

xaiaaleN a81oaO

uraigoid ail paxg pue pasou8eip Suineg le pagsiles /WA liai I inq `paloauuoasip ow000q 401 peat ow pasneo mink eapi ou aneq I uoileiado ieuuou o1 uino.no punos ail pa.iolsal sig! 1i iapiosai o1(aieo aurais -xo q uM) aige sum I pue `8ni 10pios ail goeOJ Ol i8noua 8uot lsnf sum pro' oui, paloauuoosrp owooaq peg spesi iro° ai13o auo 1eí1 palanoosip I `pia,gs mow ail Suinoural Jamie `g8noua awns

uado sum (sloop aouemsisai lause° ,Cur jo ,Cue 1oo33e ),upip goigm)

1901 jo uon.Iod sit I punoiS pue LE lu!od oSuilinolp uaoolaq ltnano uodo ue paleool I a.iojaq Buoi l,USEM li pue `s)Ioaio aouelsisaa oral of ueaaq I 9£A 3o p!J2 IO.uuoa agi spooj legs J(uino.no ail ui magma wos

all 01 peg uraigoad ail legs popnp -uoo I `9£A Pue LEA sa2els mnO pa)paio Xiinja.ieo JCpeaiie peg I asneoag JCpnms

iailoue io3 urea2eip oueuragos ail

ol pau.mlai I`.ramod ai133o 8uiu.inZ a8els siil 01 poj 8uiag seM

IeuSis ou `Lilsnotng0 .raxeads ai1 uro.g punos .reap `aoiu u paonpoid goigM

`qL£A JO PiJB agl omui leuBis zH001' e pa.; I uounlilsgns ieu8is Sursn ti1 o1

papioap uagl I Iensnun 3uiglou punoj Pue q££A 3o iC.utnono ai1 ui Sutiltiana paxoago I `punos aim pow ueo waiqo.rd DOY ue 1eg1 Suiaaquraura21

ieül]Ouge sum 8urg10N 'LEA Pue 9£A l03 (laego 1oe3o1ogd ail ui uani8) s8uipea.r aouelsisaa ow tie paxoago pue .ramod aim 33O pau.mm I sagels oMm asagm .io3 sa8emton .taglo ow aaaM se )IO tie 010M SaSellon asags (L pue S `Z sluiod aoeilmo -irj) saqnm oMl asogl .ramod 1eg1 salid -dns aaemton ai1 paxoago mxau I tie 1e

ding IOU PIP 'LEA PUe 9£A103 sagnl Mau Suunmimsqns `dams lug punos ou inq a.mloid iotoo poo8 e peg las sigZ

£-Z61I :13e3o4o11d

50088ib'8ZS smaS :QI Ps punos oN :uto;du,iJfS

punos ou um /u slyl ul peal Hod peloeu -uoosIp all of anp agi Senn punoJ6 pue ;wad aoeJllnon0 ue Mleg lingno uedo uy wed

sdn 6unooysalqno.u,

Page 44: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 Jegoio0 A6o/ougoel óujajndeg a¡uonoa/3 09

p8S3 Jo} iumnsuop ßoayt somonazga uosp,m

aanSt- ut auo alp aIll imono (mom -ninba uluananZ) aidutis u pm 1! aoeid -al uuo noX `ilomiau ant patuotjdwoo mot' iauuw ou `uan j g puu i1lm siuunwal any 1.1oMlau ieuluuai-z e anun IIlm noC 'CS) Soislsal: atp anouta.t nod 31 t! Sui,Ces 3o .Ianiouu s,aaaH

(aaunlsisaa uyuanaza ay1 palyna) `aojslsa.l Saidas 1n.ra1v1tg `dya

-uy ay8uys y puy `(dosydaua8 s, uluanay,¿ y pa11na) `aadnos a8vjyon-juylsuoa juayvnmba uy 8uiumssv dq pauvuuaj -op aq uva syvutuuaj oau ayt ssodav a8v -yon ayj `a8yyonJo saadnos adoul do auo puy sjuaulaya maya yvaajnylq :lvauyfo pasoduloa aydonuau yyutzudaj-z ¿Cup ul

(satiuli u! ieuaieuz atp dpjs pjnot's noX `sjiads 2upute3 ot loa fqns ate noX 3i :atoN) uta.toayi s,uluanai j 3o tuawafeis e nlim i.teis 01 SuloS a.I,aM ¡sflaqfuas ,mo,C uafse-

tpuw fnonftm snp op o1 SuloS aa,aM asnuoaq suonumojeo asotp punoae iaS uana uea aM suoiiuinoiuo mul s,unip aidtuis ot wajgo.rd slip aonpai uuo OM

`.tanaMoy `tua.toatp s,uluanany Suls fI .raaieo u S,t!

-wajqo.rd u i,us! sli,L YI jo sanlen ait 3o auo tsnf ateinoieo o1 ,Coq u pue uaw ()Jet met t! `aanamoH XileoiluuJayiew auop ag moo xsst slit `asanoo 30

auo .tanlo .(tana wo.13 tuaaa33lP ale leyl s10lsis - al pue sauaueq sun auo pug imano yam ao3 pa.nnbaa s! ndeiS u pue `simano maw 3o Sz uanlS uaaq aney no,C `asaoM s.rauew a3jew oj Yg gSnoini iva.tmo ail fsurnSe Yg 3o sanjen ato jo nde.IS e aaiew of aae gof mo/C st a.taH

sSulti;.t aSulion wale 3!P anen sauaueg atp pue `aouuislsa.r 3o amen iva.Ia33iP u sen 301stsal: Lang 'g 3o mien Sulpniou! sawn aoueisisaa

elqnop osie piM 1! y6noJyl lueJJno eyl 'll SSOJoe e6elOn eyl eignop nal 'Me spy()SM00) Jols!sei mew! y 'e1elElq pue Jeeui! eq ol pewnsse eJe eJey slolsiseJ eyi Joieleue6 e6elion-luelsuoo e en sloe Áiddns JeMod pelein6ei e'pennolle semen lueJJno io e6uei eyl uiylim Áels am6u

atp jo Iie moud noX iugi pawnsse st 1I

SulMe.ip ait uo 'g pm= aie saauelsisa.I jeu -aalu! ata siofuiauaS uluanai j lou ale ,ioni os `aoueislsaa !MAU! anen I a.nt213 u! 1ma.tla ait u! salaauug atp jo Hy

leaalepq pue .teaulj ale siofslsaa He

ssajun 1mo.no u ut 3I.IOM f,uom wa.ioanl s,wuananj uoltDanp auo u! ,Cluo

sMojl tua.I.Ino `.le.maiejlun s! amp u `iseai -UO3 ,ig ui SuloS st i! uo[taa.np iolnM ;o ssalpieSa.r aoislsa.r mmHg e nSno.Int

' Ham Æiienba smou tuaa.mD ajgnop °sie IHM ii nSno.tii tua.uno atp `n ssoioe aSeijon atp algnop noX 31 Mej mwg0 smollo3 JolsrsaJ matt!' d yyda1vytq pue malty aq oi pawnsse ale s.tofslsa.I ai13o Hu amni- u! nno.no ail uI

igSnogi leil PI°H wa.toayi s,utuananj jo l.ted ,C.Iessaoau e s! iotuiauaS aSetion-tuetsuoo d.role -.iauaS aneljon-luuisuoo e adii siou iiid -dns aamod paiuinSaa u `pamolle sanlen iva.uno jo aunt atp unplm ,Cuis noX 3I

Suolu saoS sapas ait se mpg SutuaS w,I Inc! `uo!ssnos!p atp jo ino ,Ciafaidwoo glum alp SuldaaX await apuj u pun am solfewagfuw;o asn alp inonllm smei pue swaaoani vom -tau jo uotssnostp atp anulluoo s,ta-I

anssl adnlnf y ut dvaddv yp¿t joafgns Imp :ranantog anssy sttyj ut padana aq mom s>[donuau anrjay yyutuuaj-y royj pawls ¿saiuodjaayd jnoqy ¿toux ne oQ 1yzyAq, s, y1 uozu jstrj : ajou s, dojypd

113 `uosl1M wes Cg

uuaaoay3 s,uuanayl

zsmuoapaga 3noqe mow' noA op leWM

Page 45: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

1.g Äóo/ouyoal 6u¡o¡Aias o¡uopoa}3 8861 aeg0130

p,e0 ,tided uo (eq) 013n3

rlucóuoJ 1d3/4413dd V BLO17-6517S17 HO'311VMj31N3J

t10 >IHVd SS3139NO0 3 SSH SOINOE110313 INDIA

8E -S3

6581.-8Ss-006-1. Ile3'lleneeH Jo eMselV UI

Sl£5-L9L-008-1. Ileo '0140 u1

OEEb-EbS-008-1- i331:13-llO1.11e3 `Adoo 33a3 anoA ao3

jSJeW0lsno }0 sana eqj UI 083H eq noA anew WOW lai pue Aepol 6oleleO 331:jd inoA Japao il! peau

noA uagm peau noA leyM Jan!Iap of WOW uo lunoo sAeMle ueo non - savoy qg u! luewd!ys Jo} Apeea

pue nook u! way; 10 1SOW - swal! luaaa};!p 000'1.1. Alaeau UUM _

iN0I10ddSI1dS dNb 33IAb3S 1Sbd 'S1bdd tillibfld d0 NOI1dNI8W00 9NINNIM 3H1 f10* MOHS

Ne 'SOINOb13313 WaW NIb1dbO 'Ob3H bnp

um/ lepol alelS )o lagwayy

auoyd dlZ ale1S

ssaJPPV

aweN .ene

aweN

1906-1L6 (Ile) Lid !6(19L X1. 'NNoM '1d "IS AuaB M 60LL 'VOS 3N ol alum 'uolleo!ldde ue pue uollew)olul aJow J03

iflOA aod >lioM walsAs yam N a41 401 IJep a41 u! llal aq l,uod

Amnpu! ayl 13a;;e leyl sall!n43e an!lelsl6al slonpoid Mau uo uo!lewio;ul

uolle3!;!1Ja3 luawa6euew pue le3!u43a1 s13e3uo3 ssau!sng

6u!u!eg Ie3!u43a1 pue leua6euelyy

:6uua;;o al!4M A6o1ou4oal 6ul3uenpe;o a3ed lse; ayl y1lM a4ep-o1.-dn siagwaw sdaa)l (yQS3N) ussy sialeaQ a3!Nas sales s3luoA3a2 leuo!leN ayl

'sdnoi6 leuo!6ai pue 'alels '15301 ;o walsAs e 46noJ41

aia41 Aels ol ane4 1,uop noA 'ing )pep a41 u! ssau!snq noA

pu!; p1n03 noA ai,noA ;l Ailsnpu! 6u!6ue43 lsalse; s,P1JoM a41 u! s! SS3NISf1g Iif1OA

'uresfis vú5fa11i gin gL

enta

Xd ;o semen oz ;o pee 10; luenno eye einseew pue Jelew 1ueuno e um se!1es u! X 1 ppe :se!1es u! 1! peuuoo pue Hid ;o arien aye of Alddns lemod pelein6e1 e end -1no aye isnfpe :Hid ;o engen aye s! legwnu Ie41-g pue y sleulwJel ueemleq eouelslsel aye einseew 'AJeileq leyl Jo; !d of !Bribe eouels!sei e 6u!neq lols!se1 e yl!M Aaeileq AJene eoe!dep :14 -LA s! e6el!on s!yl-lelew eouepedw!-eq e yUM g pue y s!eu!w -1e1 ssoloe e6el1on eye einseew :Xd anomal :sdels eseyl Mollo; 'Z am6!d u! 4nono eye of 1. eJn6!d u! l!nono aye w01; le6 01. £ aln61d

o1.10Msu> a14s ;1olulaua utuanagZ alp P11nq ol aneq 1,uop noA pun main slum! -a.lnseaw alp a)jew ¿Imana juutñuo ag1 asn Isnf Iou xgm 'xsu lq$iw noÄ

Iuallno ato painseaw pue 1

a1n21H ut Imano ag1 ut x21 palsnfpe nox 3t. 203 pinoM nox Imp maim 3o sawn awes mina uro nox `Itnolio utuanagZ aidwis alp Sutsfl gdei3 inox axum pue x2I jo sawn OZ jo pro io3 Iuaiino ag1 ainsraw wield ut uMogs sr .1a1aw 1uai.lno e glint sapas ut x2I ppd £ amA3 u! uMogs sr sauas ut Ii Ioauuoo pur RIA 3o awn ag101 Indlno SI! IsnÇpr `xiddns iaMod paleinda.l e a}1e1 MON z alnñl3 ut anlen palnseam agI 1a1ug Hy21 jo own alp si iagwnu IegZ

g pue d sirutuual uaaMlaq aouelsisal aq1 olnsnayQ :b dols

a.tag IIaM VOM saxog apeoaQ xaallrg imp 1O3 `2I 01 ienba aounasisaa e 3u1Aeg lolsisaa e g1tM xaallnq xlana aoeida2l :£ dais

óuíMeap 1e1.11 110 RIA JO arien In141 1a1ug Z a1nfft3 ut H1A

Si palnseaw Isnf noi arlion aq,I,

IIaM /WA )110M t11M

(slow .10) uNlii 3o aourlsisal Indu! ue

'eley euo ayl en!! mono (luelen!nbe u!ueneyl) eldw!s e yl!M l! eoeldel ueo noA ')lomleu eyl peleo!!dwoo Moy 1el -lew ou 'ueyl g pue y eq Him s!eulwlel eyl nlomleu !eu!wlel-Z e aney HIM noA 'l em6!d

u! (Xd) Jois!se1 eqe enowel noA;! Z a1n6ld

q1iM 1a1aw Ir1t$ip n ing `aouels!sa1 altut3 -ut aneq pinogs 1a10111110n 0141 `xllropI

1010w aouep -adult-q$iq e 141íM g pue d sjeutm -101 ssoaoe 02E1on 0141 alnsrami :Z dols

sdals 311lm011O3

ag1 103 1! 105 x21 anoma2l :i dais

:Legg 01 10 -quosgns e o.re nox ua14M Ara s,g ¿glum InogliM z am8t3 ui imam alp 01 i a1te13 ut ljnolio alp moa3 la aM uuD

Page 46: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 .1eqo100 dóo/ouyaal e 6u/a/nlas 0l110p30/3 ZS

(d-QSON-DDS `V-g99N-DDS `d-di9N-DDS) 2IdHLZ AN (d-Z4SL-DDS 'HD) 2I6Z6I A}I 2I6Z/2I8Z/2I9Z/2ISZLZ AN

OSLZ06Zt' 49S nS/OSLZS£Zb'b9S OSLZOLZ4'P9S ZS/OSLZSIZb'49S iS/OSLI£404'49S

Z-S09Z

Z-Z09Z Z-s09Z ANOS

Z-Z09Z i-S09Z Z-b09Z Z -£09Z I-Z09Z

S2IdS

MSOS2ILAId `Q06/gLL/MSL/gOL172INid' ' ' ' 1-£09Z

dJ?I

gHs066.L.L `dH88/MHZ8/}IHs86671 1-109Z

2lvsyna

LI/SI/80/SOLD6I SISS`dHD ' ' Z -009Z OIIHd

2I6LSZ-LLD /2IOLSZ-LLD I -1709Z

2ISS£i-LLD I -009Z nINOSVNdd

I99Z.LD `099Z.LD 1-909Z IIIiHI

,Lnd3O.LOHd

'L£6S-L9L-10Z 'Z£9L0 f11 `s33IIJ poomalSug `M6 alnog 'IIeH 23i1110.1d

waigold Auu Ioogsaignoll o1 Moq pur aouuual -uluw anpuanald aullnoi tu1o31ad o1 Mog

`slolow asegdAiod grim! pur 1Oaias o1

Moq s1iulap aP1n8 anisuagaldwoo aqZ L£$ .sage(' 60Z 4IBH aOlivaad :aalstBiI, g tutor ,fg °saoiow

alaiaaid asBydAlod jo noogpueH

16IZ-46L-LIL osso -eisec Vd `IlununS aSpig anlg `sioog aauaia;ag puu Ieuoissa;o.id gVL

salnsosOua pur slaaieads umo 1iag1 u8lsap swulSold lalndwoo DISdg lapsos oI Moq puu sparoq ltnallo aledald ol Mog `sluauod -woo asoogo puu azlu800al ol Moq :aio3aq sotuollaasa gllM paJiloM lanau anug ogM asotp 1o3 uolmuuo3ul oiseq sapinold 3looq aqZ saoud team' 103

pews 1allaq apinOld II1M mgl sloafold pinnq-ol-Asea ZZ saquosap 1Soog spa

punoqpaeg S6'Si$ VBqaaded OL'6$ :saSgd 081

:sloog gV.L :uBwinB}I pagga113 Aq

°allgdorpnd aq; ao3 siaafoad saluoaiaaiH ZZ-PunoS paauBqua

'1.£6S-L9L--IOZ Z£9L0 fN `s33ilJ poomalSug `M6 alnog `IIEH aailuaid

papuatuwooal a1u A1lawouo$u1 puu elga8ie A1eluawaia jo aSpaimouai d uopenllap SI! 10 einwl03 e 3o asn 0141

A3uep o1 pasn a1u suoileueidxa-wagl puigag A10ag1 ag1 uI panionui 8uiva8lno -g11M papnioul a1r swung; pasn Aglow -woo Isow agZ uopewlo3ui soiuolloaia ogloads 2u1Pug 1o3 Alessaoau gamma.' ay1 saziwtulw loogpuug spa

'i£$ :sand S8£ :IIBH aalivaad :pimp uliaBINi Aq

'era aluoaiaaig 30 noogpuBH maN

'L£6S-L9L-10Z 'Z£9L0 fAI `s33IIJ poomal8ug `M6 alnog `IIeH aailuaid

aou010301 1ay11n3 103 opewayOs yoea 103 pm!' ale sie11a1ew3o saOlnoS suo11 -uolidde anllowolnr pur slaluud `sot -logo.' sr gons soldol uo slsrgdwa g11M

`passalppu a1u SUM uoiluoiidde MOU JO

suazoQ aoiougoal soluollaaia A1e1od

-mama jo a8uu1 agl slanoo-sloogelep pue salou suotlu011dde `sauize8ew SOI1101001[0 111030l ul paleaddu aneg mg1 suolluolidde puu suSlsap 11n110 1sa1el

ag1 3o uolleildwoo r-apina sum,

'b£$ :sa8ed £6Z :iIBH-aai;uaad :swiaH -I AaaBH Aq

silnaal3 sOluoaiOalg oi apm0 aaisew

16IZ-46L-LIL `OS80-46ZLI Vd `IlwwnS a$PRI anlg Sloog aouaia3ag pue Ieuoissa3old RV!

apoo laliddns pur azud aoaid-OpI `1aMod wnumcrw `lunoO utd `uoqdllosap `apr18 a1n1e1adwal `laqwnu 11ud ag1 sapnioul A11ua

pug uollOun3 puu A11we3 Ai paltos sm IuliBip jo s8ul1s1s uleluoo saotpuaddd slossaooldololw pue sauowaw 'slum -1to oilawglllr `51015lSa1131ys `slalunoO `s1olOaias ulup `slapooap `slapoo -era SlantaOsuull `s1a33ng `S1o1wg1nllnw `sagomi `sdos3-dm `saleS `sa111tuu3 o12oi jo uosurdwoo u 1an0O slaldrgo spi me 3o a8ur1 sin3 e uo elep suolugOal pue saoud `suolluogtoads ol ssaoor siauSlsap imana s1a33o 31ooqpuuq s1g,I,

punoqpaeq `OS'617$ :saw' yZ9 :moil aauaaajag pus IBuolssa3oad

:AaiaoN Aq

`moogpueH nI Iu;I8I4 ag.L

nejOuIid/ SnOOB

"7/4511 anssl slgl u1 a8paimou}I soiuollOaig 1noA

1saZ vas ¿1! st Msi spgM 'Arm ay1 Ag S1011a

Me e 3o sissq ay1 uo xoog e laafal noA 31

aaielsnu pug e 03iew noA 'mop gam A1an

s! Iooq aqZ auiipeap e Sullaaw a1,noA uagM Aiieloadsa `ul daaio saxelslw asogl MOu?i I loglne ue se `lanamoH ¡Me -I

S,11eM JON s3mg1 Mou?i I pue noA

:2I/ZA = I x A= 2IzI = d Me -I s,11eM Aq uan1S st Iraq 3o ttuo3 alp u1

paledssip lamod 30 lunowr alp `1olsls -01 e g8nolgl smog manna lanauayM :lapunig S1g1 sS01oe ue1 I pue ,C1Oay1

sOlu0lloaia uo Nooq Mau u Su1Pea1

SrM I Apuaoag auo Aiuo am mu w,I 11 slniq

pur Suosu sawOO Sulglawos `alnloid seal mina am analiaq 01 ulSaq I sr uoos su Isnr A1o8a1uO AiselOadsa `£ pue i sal -1o8a1uO g11M aignoll Isom am aneg I

1<uP1P I 1ey1 Motns pue Moud 1,uP1p I s8u1gZ

'MOW' 1,uP1p I 1eg1

Momi 1uP1p pue mow' 1,up1P I emu, '£ 'Mou3I I

Iug1 Motos 1,uP1p pue mow' I s8u1g.L 'Z Motni I 1ey1 MOW! pue mom( I emu 's

:pm' I sloafgns am 103 sauO3alro mo3 aneg I`lor3 uI Maud

I 1g8nogl I S8utg1 am wn33ea1 01 auop sl Suipeal sup 30 11ed Sutpeal wads sl Arp Aw jo spltyl-oMI lnoge ssanS I

¿mBI soqM

sluawaia 11nO113 imam -!q `leauli Iie aney Iou saop 1eg1 wal0atp s,uwanags 3o uo11eO11dde ue 1e xoOs ¡gm Zie WTI! wa10ag1 SpouoN apnioul 01

=mom s,uluanaq,i, 3o eaP1 am puma 'gm aM luawiielsul s,gluow lxau uI

Mei s,wti0 Suisn Y2I g8no1g1 s1ua11no ay1 aluinOieo Atlsea psnoo noA `Hyg pue HIA moud noA 31 :lagun3 dals auo 1! aaieZ I a1nS13 u1 11nO110 0141

latpa8o11nd 01 act pinoM 11 urti b a1n81d ul 1mollo alp 1On11suoO o1 laisea 101 e

ag PnnoM II H.Lm pun HyA aleinoiuO 01

Asea sl 1l 'mum 1o311ef3 e amt.' noA 3I sluawalnsuaw amid

-oldde alp 231uw pimp noA alo3aq lino nO mg1 Pllnq o1 anrg pinoM noA

-qoid Asap e jo Ind su agAew)laded uo Apio s1 i alnSld u1 11no110 ay13I

auop Aiiensn s,11 Arm alp mum, Hy2I aminoseo 01 glrw asn pino osir noA (HyA) a8elion Iínno-uado ag1 awl -71.71n 01 sollewaglew asn pino noA

uopeolsddu seoilOeld e ag 01 pasoddns lou si

1I waloagl s,uluanayZ uleidxa 01 pasn sl luawlladxa alp Iey1 sl uopsanb 1ug1

Page 47: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

ES Molouyaal 6u¡a¡niaS 0¡u0400l3 8861 A401o0

slods >leem Jo mu mays eplsino eyl ol lees euoollls yllm penl6 sdwei Z -3N mod 1elem em pell4 ewAoq eolnf penb-euo 'e;es-enemonlw e esn two noi( 'uollelpei s,ueno eyl >Ioeyo ol l wed

31i108 iS31 N3AO 3AtlMO1:10111

-°0jap u punoj ang11 I `suopse3301gi0n3s up oluo pa11snd si lp peutwial ay1 ol i013011u03 ssa'iapios g iap'os ianapsp

ialga11 s,aqni alp ioj 3gASz vlpo aiolsai ugo iauuojsuuil ayljo Bulpupm women; aql jo zee ow oluo padwu° ioi30uuo3 a111 2ui°gpdai `sawpl iaylp sXgp maj g ui 31301130i g ylpm no,C

asudins uayi `fq3u lie woos Xlugiod -wal Xuw uon°auuo° asool g 'awn ow ol spual ayf uo Ilnd noX ji `sawplawos p, ain8p3 up umo11s su Kiupuo3as ivaw

SupNdoH d Pluuod Cg

-Big ay1 raga uagf `4mu91103 3130113

pug aqnl uoilau8ew a111 ol spuai alp pou -uo3sip `ioip°udu3 a111 8ui8iBy3sip puu uano ayi 2uienidun iO3jy Liussa3au a.iB

sisai oml `luasaid si aBBlion 11$p11 a11f pue 2uissiw sI a2unpon ivawepg alp uayM

ivasqg si 08e110n ivaweig ayo jp U2n0 luasaid aq mis HIM XIleuuou delion 118u1 ayl asnBaaq .iauuo3suB.i1 luawuig weirdos u asn luyl sumo uI uano paiaiuno3 -uo oq Xuw woldwds sua algi0do lou pplm uoiiau3gw ayi `Xppuwiou 8uplgiado aq of sieaddg UOAO agl pug agelpon y8py ane11 noX ji uang uoiiau8ew ayl jo women; a111 oi pappddns sI a8eipon ou `sppej .iauuo3suu.11 ayo jo uoif.Iod sup 3I uo.IlauBuw ow 01 a8ellon luaweig appnoid 01 posn si 11°p11m jo ouo `s8ui -purm Liepuo°as omi sgy UOAO sup up

iauuojsugil ayf `smogs £ am8p3 sy áup -sstul Si agllon luawgpg ayl io anu3ajap si agnl uoilau8uw a111 iaylia Xipgnsn `2upxoo3 lou sp 8upuiado ag ol swoos uano ayo puu uoifauñgw agl uo si a8gipon y3iy ow u011m

`apdwexa io,q s3i1ug 3100S pue apiy nago angy ospu /COLD lnq `sA,i, ueyi ngdai ol iapsga aig Xppgnsn suono angm0i3iyN

sdp; ma; y

asnj a8puug3 u io asnj 8npd voz u am su0no auIOS Oz uayl `110ww03 lsow agl sp Sp DER, -papal u la Ágw rug-asnj pio ue uo puad -op 1,uoQ a8g ylpm peg o8 01 spual fp

asng3aq osnj aupl agl a3uldai s,igmpy Injaiu° oq ol noX pupwai 01,ipuo jp `a8u1 - pon y8p11 alp iouuow s,Cumpu `,Cigwwns uI iO3pnias ay101 uopinu° appnoid lp 10l `IüIy1ÁUB saop appiB sup jI Xpx°inb uosiad g lipN 01 luap3gjns-yw00S inoqu ianpiap uB° UOAO anBm0i3p111 ayl ywz inoge ,Cpuo si apoug ay101 ianppap

uu3 las Al u fugl manna ay,I, p24 -iaua las OW twit own aini3id Al u uo ANOS ago ueyl iuyiap aiow st 03elpon 91,1, puoi ayo uo 8uipuadap `°pA009`£- 01 °PA008`1- woij oq Ii[m Xppuuuou

muoq lsa3 uano aneAnoa3Hw unto anoA piing

a8ulion y3iy ay,I, sasB3 Äuew up si wai -quid ow ie11m a1e°ppup uB3 ospe 113p11m

`a8eiion y8py aql iolpuow lsnr lumina s,aqnl Zip ?loop 01 paau ou si a.iayi 'mu -xg sup q3pM /(Iluelsui .ialaw u Xoilsap uu3 pue snoiauep Lion st lumina sum, ip 8uunsgaui lou puawwo3a.l I aqnl uo.11au2ew agl olut ñuioá lumina ayo onoqe sawn maj u pa.lapuom melt I

-spool .iadoid alp asa piemN°eq ip ñuil3vuu0° riq aqoid AH mew -.pedal Al u am loll op puy 3PA000`ç anun8au 01 dn 3130113 ue3 ip ssapun ialaw ,pue asn fou oQ a8eipon 11$p11

agl ioipuow nod 1e111 papuawwo°ai sI 1!

`suano anemo.I3i111 03ln..10s no,i ua11M sauppapmS Supapnaas

ilgdai uano 0ngm0i3lw yoga ioj pooi g awB°aq ,Cpaieppawwp pue syluow ,iuew ioj igai8 pax.Iom ainlxg 1501 15J X1A1

( z ainSp3 aas) 111 act Ilpm sdu.rei 0.10w io auo `apgiq 2uuipos ayl jo uoplisod aqi uo 8up

-puodop `ouawOw ,Cur ly jjo uing ¡pm sdwul agl woij sa.nm agl '2uoi 001 gig speap a11f jI dwel agf up su2 ayl aziuoi ol y$noua lead Ieplualod °ui°ap ue sa°npoid pue muffle ug su spe dwep agl jo sprat agi 111pm pauuoj dooi a11,L lsaq paxiOm dwgl alp jo Xpog ow woij y3up->r, sanm ayl 3uilsiml pue wow yipm dooi u BupNew luye punoj I 'sprat a110 jo quo a111 111pm Supluawpiadxa iagy

(1 wield aas) appslno ay101'gas auo°ppis 11fpm panp2 aiaM sdwgp z-gbi mod Cone/Amami agl ioj ajgs se papp°ads sI 3g111 igf e asa) ialem 113pm pep 0'1 -loci aamf ugnb-auo g ylpm sgm uopleppei s,uano 0111 3130113 01 ldwaug lxau XIH

ainppuj e sum luawuad - xa ayZ papopdxa io lno pau.Inq uayi `,Cplugpppuq 1p' sdwgl mu; on `pazpaiaua sum uano °110 ua11M dwgp ad iS-gli u Nog piuogpig3 zip jo iauio3 43u0 ivau apoy yuano ow ut Jam jo duo u jo do1 uo pieogpie° jo a°aid aienbs y3up-01 e 111jm sum UOAO uu uI uoll -wpm ioj 313a113 01 ldwallg lsig Xy11

OPulq pue ioiow 8uunls ow sisal 1! pue Upo -doid 2uwon°unj si awn uoiiau8ew ayl levi uople°ppup lenspn sanpñ ainlxg lsaf sun sdwg' uoau inoj pug vluog g woij ialsal uoneipgi /CBiaua anemoi3l111 UMO

inoX &pNuw ,Cq iaisgj y°nw auop oq uu3 poyiaw 2utwnsuo3-aw11 si11Z dn° pea jo vinigiadwal alp Navy° will `salnupw oml ioj 31003 pue iauio° 113u0 up iafem jo dna u meld 01 sp UOAO anumoi°Iw e

jo ,C1pnu° 311pxoo3 alp appsut uiaugd uopl -eppei agl $upupuualap jo poylaw auO

Page 48: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

886 1. lagolop Mo/ouyoal 9 6140/AJOS a/uo4aa/3 4g

peol ata In32u?ugaw lggi Lus! 2u?pgai am pue `snoia2ugp ooi s,l?-uoilau2gw alp q2noiql lua.uno agl 2uunseaw lnogg laaio,q aellon agl áuünseaw uaqm agoid .iagd?l;nw agi asn s,Cem;d

paga oa 1EgM

palaldwoo aie si?edai 1013e la$ wogs uano gaga lnovaq0 Onoioqi aql jo lied sg suoil0un3 iaMod alqeugn agl 3I0ag0 s,CuMld uu2g paz?2iaua uagl `pouad isai g ,Cg pamol -Io3 spuooas leianas .io3 paz?Siaua aq II?M sdwgl uoau 041 `aldwexa io3 `asn ui Si iamod ¡çZ uagM úupIioM aig X0q13? aas o1 suo?1aun3 $upIooO iamod alqe?ien aq1 3I00q0 01 gap? poo2 e s.lI

awii e

iu salnuiw aa.igl ugyl aiow .io3 posit aq l,up;noqs u pug `ialsal g s? sun 3I0gi0 ,Cgw ssel2 ag1 10 1o11 002 awoaag ol Jam aq1 mow 1,11oQ I?og 01 sliels lt aio3aq laang3 ag101 d?.il g paau pue puoi g sg s10g .i01eM 3o iauigluo0 ata 2u?wnsuoo own aq ueo ainpa0oid sup sawilawos 1ng `iCluana aima 041 10ai?p 01 XI1q$?Is apglq 2uia.nls ag1 puaq ueo noA )IeaM lou Si dwgl g ants aq o1 006 ialsal alp u.inl ing `XplOtnb pagpuap? aq ug0 s.iau.ioa log pug ploo agZ ./Cl?ngo alp Olui pal0aiip Si ,C310110 angMoaaiw agl se 103IO?lJ pue 31u?Ig "pm sdwel sawil Igianas pasn s[ alllog 042 Jaw

auop aq wogs pue ,Csga si ;uawa0g;dag lugs pue Áltsualut ell alp jo asneoaq moq ue uegl aiow lsel sdwei mag uo?1 -undo jo salnunn 0£ 010I ial3e paoglda.i aq 01 paau hw sdwgl Z -EN agZ

ssel2 aql 01

-ui luinq aq hw 3Iigw o?1 g pug sllnsai lods log e`igf agi u? s? Jam ou 31 dwgl alp wog leaq alp aled?ss?p sdlaq pue CI

-1q$?Is antra alp qiosqe 01 sdlaq aoeld w dwgl 041 guqplog an?saqpe auoatl?s aqZ paz?uo? awooaq pue palma a.te salnaalow sg2 uoau agl 'dim" uoau aq1 salg.ilauad ,i2.13110 angMoioiw agl sd

sdwei aqJ,

dod uagM ssaw u 03Iew pug Iran' hw sasn3 ssglp pnoigs 042 omit! pa?Iddns weaeip óuiitM aq1 4 pag0ads su `asn3 au!' 01wgi00 dOZ io dçI .iado.id alp g1?M asii3 alp a0g;dai shMld uado hw asn3 alp `0Ml io ieaX g iagd wigM awooag 01 uano alp ui asiy ag1$u?sng0 `auil AOZI ag1 woij vg 01 asop gip Á;Iewiou `lseoi io Xaxinl u al!" 'pro' Are' u g1?M suanp asiy awl 041 uado 01 q2noua argon 11214 alp uMop pro' 'pm Su?aie iagiiiy pue `,Cpp?nb saziuogie0 unq 2u?llnsai aqZ iaui00 e w JO pea ioop alp

laleay ayl uo oeAg¿ pue apoyleo ayl uo 3pA000'Z- sannba agnl uollau6ew ayl uo13au6ew eyl ol a6ellon luawey; ap!nad ol pasn si goigM;o auo 's6uipuiM Alepuooas onnl sey uano s!yl ui 1awlo1sue11 ayl £ a1n%

tl31d1103kI AH

OaN3oo`a- dtll IH

1N3w1/lId NOö13NOV1'1

l3Ntld lOtl1NO0 WOtld 113MOd OW

3!I aq 1!!M sdwei alow 10 euo 'sprig 6u!1.4ls ayl;o uo!l!sod ayl uo 6uipuadap 'luawow Aue ly dwel ayl u! se6 ayl az!uo! ol q6noue 1ea16 !eilualod o!lloa!a ue seonpoid pue euualue ue se sloe dwei ayl;o Apoq ayl esa; you! -3/4 spear au! 6u!ls!Ml Ag pawlo; doo! y¿ a1n6!d

z

I

s n

E iii

ot Sv E

st Z

oi

voz I

uaaMiaq llnsai ,Cew 2u?a.ig `XlineO Xidwa ue olui paonpo.iln si uoile?pei uagM

X2iaua angMo.io?w alp 2utqiosqe ,Cq uueM awooaq salnoalow poo3 aq.I. poo3 041 ,Cq paignualig `Xuneo paunl agi 3o sum alp uaaMiaq saounoq X2.i0u0 agZ Xuneo agi jo dol uo apelq 2uiiills alp Xunga SuNo00 alp olu? palnqtiistp Si uo?i0as 91n2 -angM alp WOJJ ,C3.taua aneMoiOiw aqZ

asn3 aq; naato

lsig lno sliogs Xllgnsn agni au uado woplas siaigaq uoilau2ew gof poo2 g op 02 lumen!. Su?sn `iol0au

-1100 pue ai?M agl aoelda.i "pm ug?anigaal Iguo?ssa3o.id y pa0eldai aq oi paw kw a.ilM agl pue `sagolims ioop uo SJo10au -uo0 luinq pug 24$!w noX `iawio3sueii agellon-eg agi jo ,Ciewtid alp Cq umeip warm et' agljo asneoag

sia?Id giiM lou `duiu0 M io A u g1iM siol0auuo0 agl uo dwu0 pue `äutlei uollelnsul g

q1?M ai?M papugils ane2-8I asn Clup -asn Al iO3 mum! ai?M a3gllon-q21 pal asn 01 ldwaile IOU oQ -walgold aq1 paxg ai?M Mau u pue `iol0auuo0 luawelg agnl uoilau$gw agi o1 áu?pu?M luawelg alp sl0auuo0 imp peal anp

Page 49: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

gg if6olouyoal y óuppl.las s¡uoi1aa13 8861 !a40100

sapas e 10 auo

p1eJ Aldali uo (gg) apn0

51621 Vd "iewIo] L9S x08 .0 .,1

auel apuenpV SZLZ

'DUI 'swalsAS ®1daDuoJ-0N 00178-ZZ8-SLZ IIeJ eiuenlAsuuad ul

BLZb-Z9L-008-L aai1 1101 IIe) sl!elap luawpedaa Sw1a>fieyy ino 13e11103 aseald

"saDud paonpal w algel!ene shun uouenlen3

swalsAs 1daDuoJ-nN - peluoD will ane4 ..HJ1VM 3I1V1S,.

aql alpueg lou saop iolnqulsip 1noA )l "panp IleD Jo Jolnqulslp

leDol inoA peluoD aseald

"sdeus gl gUm pauuoD ll!m pue slolsisal Ino yl!m algeuene

aie spueq ino aDu!s spio) umo inoA asn pue Asap pals

ssalu!els ino Anq UP) noA MON ¡smaN pooO

"anes pue demis

lsum hals ssalu!els Su!lsel Suo! s,ldaDuoJ-nN asn "SISO) Algluow

l5lq ul llnsaM pue Ise; lno Jeam spueq IsIJM )iuela . -uoN

S

sluauodwoD D!uwpala ol aSewep pue A1nlw

leuosiad sluanaid' 'A1pupala Dilels sloiluoD 1l .spueq lsum aSJeyDsip

Dllels u! aiewhln a4l sl 4pi4m 4D1eM D8e1S aNVß )IJVl8

a41;o iainpe}nuew leuBuo a41 Aq pavoddns pue apeyi

£f9 '6S17 17# waled ®..q31eM 3!1e1S..

deus y,-ase) pueg ay) 2Ip!suI-uo!1e3ol iols!sab

¡siso' de1iS iS11M JiielS

3Jna321

1906-1Z6 (L18)

6019L Xl LW0M '1d '1S Á,IJ38 'M 8OLZ

unalonoºy sasinap sain -sas

V1C1153N 7 sstos aiuo.qasl31ouotlnry

dlZ

ale's A1!a

ssaJppd

aweri

:b'aS3N 01 6ulMollo} ay1 pew lsnl 'aulze6ew ayl }o anssi aidwes e pue

"b'aS3N lnoqe uollew.lo}ui iO3 saaleap 339n.1as pue sales saluo.tioala }o uolleloosse al;h

'tJOS3N }0 sJaqwaw o1 algeliene smauaq 6ulualgóllua Auew }o auo Aim)

'aulze6ew s3iuo}3913 leuol,ssa;old yilM AeM 1noA 1461I `daS3N

1al 'ssauisnq noA 6ulUunJ }o poylaw Ja11aq e Jo}

6uldoa6 ai,noA }I o a

JASS lawoisnO aqh o; °igeuoseal MOW 1S03 ag1

2upiew uo1lenils sup way padnooal aneg I awlh slsou2elp aql pue ales 0111 °sol ,Cew no,i `eg cool sI Jawolsno aqh oh aoud ag13I Sb$1o3 agnh awes awl

Has Wpm alms ;uno°sip e aligm ueg; aiow 103 laleap JO 1aOlniOs agl 0) aqnh aweu-pueiq ag1 ii°s ,Cew asnoq shied auo `aldwexa .1o3 suo.i10u2ew huawaOeldal .10; puno.le Suiddogs puawwoaa.l I agnl uo.11au2ew e 3o UOI;

-eilehsui x111 1o3 OSI$ uegh a.1ow puads uegl .1ag1e.1 I°pow Palnlea3-IIn3 `Mau

e gplM 1IUn ag1 welch' 01 ia3aid pinon+ suanO .lapso g;IM slawo;snO Isom'

aqn; agi oh

s1lOn pa.lpung ielanas M011e Xjuo ueo pue

XIlelualui uado sawilawos s.lohioede J

asa11Z .lohioedeo a11; vago `auego ou si magi ji a2e ghtM aleam

sawooag awn ag1 uagM uo11aU3ew a1í1

woe 1ndlno aq; sisooq uoihdo sua apis qäIg ag1 Oi .zaw.lo3sue.11 AH ag1 uo peai alp ñülAOw Á11 `ñUO11S ;OU SI UOilelpe.l pue XIwiP ;II ale sdwel uo0u ag13I

sOilsualOelegO 2uua331P aneg SUOAO 1ua1a331P pue Ulm ,CELLI ,C1IneO 3uplooO alp apisui paoeid

Ampuooes luawell; ayo >loayo uayl 'Allnul;uoo >loeyo pue egnl uol;au6ew speel eyl loeuuooslp Uo;loedeo ayl 641eyoslp pue ueno ay; 646nidun Jew Auesseoeu aUe

s;Se; oMl ';ueseld sl e6e;lon y6ly ey; pue 6uissiw sl a6e;ion;uaweii; ay; uaynA g ain6ld

H0103NNO0 ONV HOIIMS

3OV1d3a 'iNana 39 01 1:IV3ddV SiVNIWk131 di

HO1lOVdVO ONV 1:13waodSNVa1 01

NOI103NNO3 SIHl iV3H AVW S1N31tWlld

AS NMVFIO 1N31119n0 HJIH AHVON003S 01

AlInNI1NO0 )103H3

NOa13NJVw

Page 50: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 Jagoloo dóo/ouyoal y 6u¡o¡nuaS oyuonoal3 99

pep Aided uo (z8) 01343

aJnleJadwai 1as e sagoeaJ agold alp ua4M pompon Si uue[g [gnsin pue a[gipng uy

ssaoold Sulleag agl 8uunp aoe3.Ins vom a41 jo 8uuouuow pue 8ui[goJd aim -eladwal w1o3Jad o1 JoleJado ag1 sMo[ -[e >quid [euJalxa uy Xe[dsip aJnlelad -wal [eu8ip e pug uolloun3 peawas e`Ja[ -[olluoo aJnleJadwal doot-pasoto e apnto -ui sainlea3 papaau Si u 0104M ,Ctuo

1ra41oanp o1 u8isap 8utlea4 anilonpuoo u sosn walsÄs 8u11eagald lunow-aog3Jns Ie3i8iP 10dS10H OSI -SH 3911d 041

wa;s,Cs 8utleaqaid ;unow-aae3.Ins

pies R1day uo (L8) amo atqro zip 3o quo 041 8uo[e panow

- aJ aq ueo uoile[nsui jo sMopuiM pue `g18ua[ duls 'Cue o1 padduls aq uno meo aiooqtnw pur papueJls `p1[oS uol3etns -ui JOAO QO goul-Z O1 4oul-zsis woJ3 8uunseaw sa[qeo uo pain aq uno stool agZ ,it[eiluaJa3wn0no pur Ä[teuipnl -i8uot glog `s0[geo agie[ uo uoiletnsul sino 1r41 apetq tanims gldap-a[gelsnfpe ug anal Daddy's aatM 1{snd wag slad -dols a[geo punt{ jo sapas SJf 04.L

siaddlJls atgeo PUSH

pm3 AIday uo (08) 01a40 pua papeaiqi bZ-

4aul-8/E e 43M gulls 4ou1-8/S palunow ,Clluaueuuad u pue a[gold Mot e 8uunl -ea3 aseg 41Jno3 r si a[getiene os[d aseq wnnoen e Jo sivauodwoo (aseq) Jauoil -lsodrued urtop -Malos awl JO 1a43a ow! s1g gulls tow-sh d sMef aa1g1 8uipn[o -u1 `sivauodwoo atgea3uegoJalui Ong salniea3 `s/ooZ uasuaf wo13 atge[iene `wa1siCS 8uip[oqp[JoM asiAeued agZ

wals/fs Suiptoq-mom

¡ue3 Ade uo (gL) alalo uol3ouly 31o04o-J0l

-sisuell e ['UM ñui$uelolne si S£bL-N[Q a4s steuiuual o[oago-,SouanbaJ3 pur iouoedeo `JolsisueJl pug ,CeldsiP (DI

1!3!p-z/ £ e seo NiY1iQ 8w8ueJ-tgnuew £££L--NiQ a4Z uoilouiy p[og-aten pain -snow e pue `w1e[e a[gipne quM s3130110

iílinul3uoo pue apoiP ` % SOD 30 ,Loni -nooe oisrq `uoiloalold peo[-lano `iie[d

-siP QJZ uBiP-z/t e aJnlea3 s[apow Sui -SueJ-[enuew itiZL-wQ palunow-gouaq Pug £171L--IHQ moll -peg aqZ sJalaw -p[nw [g1181P sapas OOOL a41 paonpOJ1 -ul seq ` p17 ` óJ uo2staaid .ivlspiop

sI^IIA[Q

Pao AIday uo (eL) 9I3I3

'Ki[igedeo aoua1033iP Pue wns pue `lndui slxe-z `uourJado 'awn asp sugg `sdaams pa3eJgiteo oz ale salt -m.110420 glpiMpueg zimOt 0111

-ua Dip JOno asuodsaJ 1e0 e s1oJJo pug Al

-Inlusuas q1PlMpueq-IIn3 AwS seq adoos agZ ou,Cs u1 pae[dsip ag o1 s[eu81s oM3

SMot[g 4014M `uoileJado apow n pue Al

-Inlusuas Aug saJn1e03 uorspaad xyg wag adooso[tioso d1ts1 [apow ata

adoaso[[laso aoeJl-ten(I

pies AIdaH uo (LL) aloi13

xoef SuoJM ay1 o3 paloauuoo aie sprat a4131 Jam 041

SUJEM 4014M 'mow lndul pue `paploo aJ uaaq seq omen wnwixew Jo wnw

-iuiw Mau e Imp steu8is 4o14M 'paw XVIAI AIIY1i aJnlea3 sJO1aw 041 ' % £'0 ulg11M Áoelnooe a8rlton op pug zing 01 asuodsaJ a8elton on ue seq £g axn[3 041 .90w 8uiplooaJ XdYAI NIW 3fr0d e

pun apow (lunoo 000`OZ) 2 P-%b e Seq oste ¿ aw[n[d sau-aan 0LH o%1.0 uumm ol Aoeinooe a$e11on op pue zipioz 01 oeA PoPualxa 0ne4 S8 Pue L8 oJInI3 041 suolloun3 aoueuoedeo pur `a[oAo 'C1np

`AouanbaJ3 pur BuipJooai a8elaneiwnw -ixew/wnwluiw snoaueltnwis alnlga3

fpv arlg uI{o f wag sJalawil[nw pI04 -punt `pa[ras `3i8!P-1/E£ souas 08 041

Ja)aWI)Inw P1aq-pueg

peo AIdeH uo (9h) ala10 1Je1s

moo e wog 0g179 jo alnleJadwal palrtn -SaJ si! goeaJ 03 salnuiw ç£ swirl un8 palaMod-on a4Z dwnd wnnoen uanup

-uolsld e 411M luowa[O Suileag M8Z e saulgwoo sauisnpul xp wag unS 8uuaptosap uoiloe-JaSSuI SS -VS 041

un8 8waap[osaQ

pre AIdaa uo (SL) 913.110

*mow luawaJnseaw a[geloa[as oMl pue `suue[e tunen Joipue a[gipne amp - DE 1e41 sluiodlOs a[ggisnfpe-Jasn `(uoil -mow.' 874 4uM `ZIOZ 011Iw0Z) saBueJ aouelsisaJ Jno3 `,Cg[dsip 43!p-z/,t `lunoo -owe r saJnlea3 uun a4Z uoisoJ -10010 uolleuiureiuoo g8noJ418ut4ound lsuie8e alnsua o1 pau8isap aie (bluç) 3ualJno pue (wnwixew A7/000 an -non 8uilsaZ suoileoi[dde luawalnseaw aouelsisaJ-Mo[ Jo3 pau8isap si uosduits wOJ3 Jalawwgo-olona Me [apoul

Jalaunuqo-oiam

AIday uo (4L) 91343 suopeogdde goeal-o1

-ping u1 asn ollaiseO pue Jal48i[ si Jai[d at[ Isdaoio3 JO 1elsowag u se umouJt Át -uowwoo `Jai[d-010!111 DO-I-u-dyAIV-IJ 041 paonpoJlui spy uoaZ joo,Z

slam

pap Ade uo (EL) 131343

s[eu8is pasn uago 30 [ollüoo sapinoJd gowns JIG uotllsod-g uy 8uigoled SSOJo Jo3 MORE

01 paidnJJalui aq uno s[gu8is [td ,Cunuil -uoo ma.* Imp Jaldepe 1sa1 a[geo alowal e pun :meal a[geo e `sladwnf Sun[oels Jtoeq-Ä884 `[olluoo goums mici pun nJQ `SL') six `.sagOuMs JanO-ssoJo GN 01 GI apn[oui same 10410 sa -qo3ims lnoralq SZ pue sluiod Jouuow OS `sQd'I 001 saJnlea3 saaua:as v1vQ Ivuopvuaalul woJ31a1sa1 a[geo pue xoq 1noralq Z£Z-SZI 001 xog Onta a4s

xoq lnoxeaJg

s32npoad

Page 51: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

LS A6o/ouysal y 6up¡nJag o/uo.goa13 8861 Jego100

pJeD Fidaa uo (os) 813J)3

OZIZ-BZZ-OlS .XMl L611-459-919 V S n'£9L l L'.l' N'PJoIPeW 'arnJenV o!uooed Z> uoperodioo sueudleb3 uoRonpoJd po4ºuxlnV

'3 d'V rIl

_ NO ON3d3O

vognJ;suowao;onpoid asnoH-u/ uv Jod aóuolly ol ap¡Muog,oN ango;uasaidad 3dy /0007 inoA goo

6H 9g jo aoto; wnnopn;sayó)y ayI seonpoid dwnd es!) aouplsui pau)o;uoo ;)aS

uo4p)n6ai ain;oJadwa; papa;uoo JossaooidoJo)w v(}a;ps sJo;piado

io; sauossa000 puo s;uawa)a 6ui;oay a6p4lon Mm © .Apps SOWO

Jo; 6u)punoió paz))000) pup 6uiy04)Ms a6p4)on oJaZ

:sain;pa; Mau 6u)Mopo; ayI soy uo);p;s gLb-S?Jd in0 'Aoua4s)suo0 puo /4ppn'i)pdad'4))iqp))ad y6)H ainsua ol sa,ryqwassy9Odia/to/-glnyyiod waive ilodab IceePI GUI

W31SAS )IäOM3ä 319VläOd SLe-sad 13OOW

«W319Oäd áf1OA 01 NOI1f11OS 3H1 3AVH 3M - NOIIVJI1ddV älVd3ä 3H1 3WVN f1OA»

OIUOU.IOB1 u Niuow y»a

aauaoo oapLA

peal!

°S1IDA agedaa oq

ua1eal

pJe3 AldaH uo (LB) elom° s2tOA xd-ut-xid .io3 inugis £rriti

-xnE uE sagddns osiE Áiossaoon agy lai -wo of pagoiinnsun pun gag!' indino A d eguni sisagluXs itouanbai3 `gwuni unos /piroq,íal regAp sia33o pun siauungo aiqeo 66 gutpnioui XlioEdno iauuEgo-SSI snq gun ags itn agI 33o piooai o) ia -paoowEo /CuE swum gotgM `ioidtpr .ia -un) 006dADi iapow 39 agI paonpoilui sEq saruo.rloalg .raurnsuóp uosuJoru

ao;depe aaun,

pJs3 Aldea uo (9g) eloilo oigoi aigi)Edwoo-îi,i,

pun 'I,I i, ggM )iioM .toa sianai lndui (ALCM > ) MOZ pur (AZ+ < ) IH mi pug Xisnouoigou,Cs io Xisnouo.igoukE salEiado agoid agZ siiw OS oi uMop s2urords prat pm £rimano gonai oi agoid agl moire sdi,I, iaggEiO JWS I saitnur3 ot3oi pirpuE)s Isom glM aiq -ilndwoo si pun aptM slrg 9t oi dn pio irit2ip sapooap xiuo.um wog agoid

iaeuI/iazwgooai Atom gOb9d aq,I, aqoad aa221a;/aaztuffioaaa paoM

pm Aldea uo (se) 013.113

'swamp 2uiinag AtZ Paiioiiun-ainiEiadwai attune gotgM `uo.it gutiapios aitiedas E put aoaidpuEg 3uuapiosap 000I-Xg iapow aqI sapntoui ioioEilxa aqy

sivauodwoo anilsuas-oUEls qgM asn io3 a;Es Si gI 3H sagou 1Z of gi sianiiap pun ainssaid ire ISd sapinoid imp dwnd

wgEigdEp pautE;uoa .iias E set' loom - xa iaPios i0S-X3 IaPour g d N aq.L

ao;aea;xa aaPloS

pm Aldea uo (V8) elo+o spuEg IsuM orlEls X.iEwpio until

a3ii iaguoi sawil OZ oi Oi apinoid wogs ingi wig oiisEid riAd 3o ssawiotgl put z E glrM pa)EwIIIEi sr xuit gong punq iapiadS e giiM dni)s isuM puno.i2 oIEis E paonpoi;ui sEg saulsnpul oasaQ

dugs ;slim punoaä awns

ono Aldea uo (g9) e10+13

sluEouqni asnq -wnatoilad wog 2uuanbont anowai iiiM put 1.iP Put isnp )oEiilE;ou saop iunou -qni ag,L sagsrug otisEid io pooM 'paw uo pasn aq una II saor;ins sioa)oid pug uoi)ou3 saziwiuiw `Isar sivanaid `salto -ugni `map lonpoid ata asrg owE2 -io a.ind E wog apEw iutougni autgoEw -ao33o aigEpEaapotg `oxoi-uou E Si

swage 8u2mougn7 woi3 II agninood ;ueapgnl auigaetu aa<330

Page 52: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

Ann 'ZIZ99

8861 Jagoiop Molougaal 9 6u¡aptias a¡uaiioa/3 8S

SIA 'mad puvilanO `i06ZI xog 'Od ',CBotougaai tg Supinaas atuoa;aaig liaegpaa3 :o; s;uaunuoa ano,C ssaapps aseaid iDSg 3o spai ao/pue sao;i -pa am g;im wogs o; am; mom na ;vg; uommao;u! aiqenien Imo awos ao adia8 e;uaunuoa e anvil na oQ

"(210051 oi /100Z7 Sy ySly sv sapnil/dtun as/nd a/puvy oi a1gv aq until adoas 1no,i : uotlnv3) ¿sas/nd ay1

AM apex moil 'yriS'£9 diana ivadal imp sas/ndl aas os/v p/noys ne aurnuayas ali uo patftads sl imp aSviyon ap paiv/n -3a1 alp alnsvatu p/noys nod 'a8vis Ind - /vluozuoy alp fo 10130110.7 ay11y;,

: pval anvy p/noys uopsanb attj anss! 8S6i isn8nv ayi ur aSpa/naouX saluollaa/y 1no,i isaj fo j uolisana ut uantS uotlntulofut ayi ut .lolla UV Sall aim?, 'RI : alou s,1o11pg

d7 `uosxavp ,Ld `3aagioLlt M mod

sadoas apu18-Moi autos a31ows ao/puu amp aq o1 a8union ;o lunowu Imp 8utnaadxa ;ou wo.t; saniaswagi iang law on auoawos asma pima sm a31li uolnnu0 ;o Atom snoauolla uv

(papunol8 sissega 10 uniap s.l! aagiagm) punol8 sii awe tulivalod (+g) aP s.1! (ol POPPe) seid si slg.L 'EOM AOOS`i ol A008 ail u! a8ue1 IMO

(08e1s 1o) lo1s1sm11 indino irnuozuog agi jo lolaatioa agi way sapnllidwr asind aqs :uoinuueidxa ;auq u 1o3

"MST 01 AOZI su gsiq su sapnlidwu asind aipuug ol aige aq lsnw adoas 1no :uolnne0 `p!rs apple ai,i, 8uo1m s! imp uoclnua;o pio u saluls auo 1aq -wnu uopsanb `a8paimoux s0luo1n0aig 1noA 1saZ s,anss! 8861 lsn8nd ail ui

sapnmgdunt asind 8utipuvg

a/wddge+

0,/wdd05+

;ua!o!iiaoo aln lei adwal

%g+ z -0l 1.-0l Bol 601 -

LO I.

901.

ºOL

t,0'.

CO'.

411.

Ol

plo6 aanl!s

6 el! Lim

9 i(eJ6 L lalo!n

9 anlq G uaaaó

MollaA

E a6ueJo pal

UM01Ci

L 0 5ioelq

aouwaiol Ja!idiilnyj ainól; ;ueol;lu6ls Joioo WC 'pue 'Al

I I

'aim! L861 lago»p ay1 ul ,.¿s9! - uollaa/g inogy, ntoej no oQ wt/Ai aas 'puny apoa-1o/0a zings 0111 lnogv uotinuuofut 0101u Jog 3X£££ lo ZT?I££ £ iou `ZP/£ ££ s! 'uayl `uopsanb sup of lantsuv 1301103 atu 00£`££ fo aauvisrsal n Jo! `00110 'Z01 fo lal/dp/ntu n sand puny 1o/oa 1a!/du/nu pal y' '£££ laqumu alp anls spuvq aSuvlo aa1y, j 13a11oa s! snnap ayy IOU tuvs 1a10lau 'suollv/na -/va ,011 oi Sulploaav inq 'pasnfuoa os 1os sup naoy 01nS Iou tu, j: a;ou s loitpg

VA 'anäsa;oauig0 snug; g iiassng

000`£££ 10 't0! x £££ in1M do Owoo i `(poi)1aliduinw OW 8ulsfl 1331£££ 1ou `331£££ aq wogs amen Jolsisai ag1 analtaq I lug `leap 8!q ,Cou si 1 imp loN al!wg0 sum se `aiumuun 010M ,(agl `sapoa lotoa xis ail inoqu wail 31su of `pip I ua im `10AOMOH

snonpold s0luo11 jo lolnqulstP e `0INH paPlnold

sum ologd aqZ sluaiuoa;o awn agl u! tlolnaas lanoa alp u0 alp u! 33o 13a1 xi

-luallanpuu! SUM lanoa 8861 lagwaldas alp io; nlpal0 oloid aqZ :a;ou mo;ipg

,iuedwoa Aaipulg-uatiN aq; larluoa mom I PIP I 3! ing 'amp sigi le slolsts - ai ad,Cl-uolstaald ,Cue asegaind on paau OU aneg i apoa lotoo pueg tilxts alp uo uopenuo;u! 1no,C ao; no 31uegZ

'WES luau

uosiiM cuss 1! mug nou ,fiqugoad mom

slons!sa1 plepurns 8uniuw ,Cuudwoo dud saolsisaa uolsl0aad 1o; ,Ciuuutud st

1! `osid asn ou jo aq mom L861 aio; -aq aauaaa;al ,Cue os `apoa 10100 agl of uotippu mom u s! sltil `,Cum alp ,Cg

loluu8isap :i, ag1 10; spurns g0igm `(i a1n8i3 aas) apoa lotoa-9 tin3 agl sand imp 8oiulea ayn wo1; and alp JO MOD r VIM aneg islolslsal 10; 900 10100-9 agl 8utp1u8a1 autzu8rw mesa wo1; mai u pantaaal lsnf

`snut133O luau

palv/na/va uos/ni lyy anion aauvislsal ay1 pauousanb os/v ay pun 'puny 10/03 ylxls v uaas lanau ptn{ snnyffp :lyi! %Z + 3X££'£ fo an/vn amuv15lsal n uo pasvq yeZ£5100O tie uanl8lanasuv ata ¿aaunla/o1 u! s! 1015/501 alp ft WM

will luallna tuntutxntu alp s! nnjna -dns ¡aim un 55013v paiaauuoa st 1l

uaym a8unlo 'pal 'pal 'aStnno 'a8unlo 'a8utzlo :Tung apoo-1o/od xis sny lolsts -a1 ulvilao y, 'svnt uopsanb a { j a8pa -/ntou}j saluollaa/,d 1no isa, j 8861 aune alp ul uopsanb puoaas aip woe snnaO //asse tuolf,Clanb n oi lantsuv s uosllh4 tuvS s! lana/ 3u1Mo//of attj

pueq apoa-aotoa g;ags aqZ

3»qpaad

Page 53: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

69 dóo/ouyeal +g 6uppvas a¡ualaal3 8861 Ja(10130

ono Aidea uo (SS) eloJlp piep Aides uo (1.S) 91040

I LLCM IVY 'SlH BugaalS £01.LL X08 0d OtiLZ-6E6 (En) al .1a

.Sdjl 'smo4 ZL ulqM paddiys am maw IN

huaiedsue4 Imo Je8-L

huaiedsuel) ales AeJ6 da)s-1.1.

aoe;rns luejslsaJ

-yojeios leDlldo yjlnn DlltiDe

ul pelunow salDualedsueil

aajueien6 leuoljlpuoD 1eab-1.

(.Dads sjaaw) sdwei wnlam o00ZE (Z)

salouaiedsue4 (Z) yjlM

xoß eJawe0

80 001.al IaPoW

puawwooai siamjoe;nuew

umairslCs xvog p1sn alAepao1e ua suguasalid

£Z99-838-91.3 mid 0043-1.46 saIeS 0664-SZ8 (91.Z)

vsn Z9461. Vd '6u!laaw ylnowÄId 89£ xogad 'peou ollody g

"700.0-/IMISU Adoo 094 anos( io;

ajum JO xalal `Xyd `IIeO "301M:13S aflOH-4Z juO1UOA

-UO3 pue ONIddOHS dO±S-3NO la6 nos( puy suoll -eolldde ivis Jo; slool pue sallddns wooi ueeio `slonp -oid asa snid `eoueualulew Je)ndwoo pue `eo1AJas pie!; `suolleo!unwwooalal `solualoala `eoueue)ulew pue Algwesse leolueyoew-aloala io; sauosseooe pue slooi pul; lllm noA siainloe;nueve eu!i 008 JOAO wa; swell 000`91. ueyl eiow sluaseid 6olejeo ayl leiegmAue pu no; eq o1. swaj! Aillenb-dol;o uouoalas iseq pue ise6 6!g ayl sepnlpul DO1HIV3 3343 iselel s,lool-luyaal

sionpoad OaW `10.4u03 3ReiS

`wooa uean cO3lal luawdinb3 sal

`slool `sase3 siDI 1001

2oirlup aul

raga ageis leal u! paledwoa aq uea sasegd .nagi pue indal zw¡ogZ`j agi o1 ¡tuba aq jjcm 1! ang Cq

pappe s! 1! uagm `Xem iegy iolam -ap aseid agi of lndut ag11e buanb -aia ag1 sacan anta aq o1 seq iiauanb

-D'J ODA DILL 'Z} OSz`9-d 'Or

ivawdtnba paleatistgdos /Cm awns pampoid sO176j pue s0£61 agi lug idoouoa mau Xjjelol e aie sauogd augouw legs awnsse of Xsea aq mom u `,Cepo1 sauogd iejnjjaa u! Isaias -u! I2!4 agi Jo asneaag 0ti61-31 '6

uani$ saatoqa agi jo flujtqtssod lsaq agi s! spg,j, walsl(s euualue ag1-g 'g

31\nd 03XId

0 31:1f101d

31yld 318b'AOW

ONIadS N ki fl l3ti

31VOS

adri1 g1$uaj -anem 31eq e S! euualue zuaj-j V adi(l q1$uajanem-iauenb e st euualue isea -peoig ata euualue tuoaieN-g L

:coisrsa.l 8urduivn+s e pajjea sawpawos st iolstsai agZ sa!auanb

jo auei lawn e .cano auru imaila aqi sarw urru ut legZ Zj itnaita ow siamoj iwstsai aq,j wnwlxew st 1!

ssoioe aeijon agi pue `aoueuosai le wnwpxew st iois!sai pauni-jajieied zip jo aauepadwt aqZ aaueuosai 1e wnwlxew s! Anion ags-tT 9

doip aSeiion gS!g e saanpoid iois!sai ag1 gánoigi luai -ina q3lq agZ aouelstsai ag1 AI

-uo paitunj s! IuaiinD 041 os 'mot /Cm Si imaita pauni-sapas gip jo aouep -Mug alp `aaueuosai 1y aoueuosai 1e wnwlxew st a$eljon agZ-d S

.pappe s! Anua ammo 'awns jo mod sjead 041 1y ,C2iaua jo ageiois agi uodn spuadap uoueiado i jagy sluauodwoa aniiae -01 gltm apew aie siagtjdwe alilaw -mud sioianput pue siouDedeJ 17

aSeijon ag1 smogs aiejd ajgenow ag1 uo ajeos y 03.ioj &uuds e isute$e u piemol sanow pue aiejd ausoddo agi o1 paioeiue s! aiejd ajge -now aqy painseaw Sutaq aSeljon agi ACq paiega s! iouaede° ouj ajge -nove si goigm jo aua `so uid ioi!oed -eo omi gitm apew aie Ao u. uotieia -do jo ajdtouud agi smogs Q ained sluawnilsu! Xiolvioquj se posn aie ,Caga ooueislsai indu! iaeg ganw e aneq siaiawljon a!ielsoilaaig £

painseaw gulag aauelsls -01 0111 jo lied lueuodw! un aq uea aaueis!sai pea' agi aiagm aauels!sai jo sawn moi 4uunseaw io3 jn3asn -jetaadsa s! aSpuq utnja}j am, g

leaq ow! (aoueis!sai e ggnoiq)) luaiina 3o uotsianuoO ow paieniena 1543 ogm ajnor sum i! 1nq `suem u! painseaw st iois!sai e,Cg po

-1ed!sslp iamod ata paaiioauj-g j

Z[ a8vd UO Alt) suOalsana

zinb ay3 o3 saannsubr

Page 54: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 Jaqolop Molougaal ä' bula/nies aluoilaal3 09

(sweise leil6!Q g 6oieuy Äsetinop) uo!loeilp ewes eyi u! 6ulsson s!xe-wez snoeueAnwls eney pinoys sleu6!s onnl ayl zfflOZ pue zieZ;o seuoi isei o!pne 6u!sn ial(eld ap ayi ;o spew aq ueo lset aseyd y; ain6l j

Jo 1oo3-SZ e asn `iSnoua suoi t,ust pJoo 011!!-Jamod s,tas ag13I faitno tuaia3

3tP e o1 A.I. alp Sutfoauuoo AJt `l,usaop it 3I amo e aonpoid 'gm luatpadxa aid -wis sup sauniawos (paztteiod 1ou s! Snid alp j!) nid au!¡-Jamod sA.L ait Su! -sJanaJ Xii `dais isig e sd iaAeid GD alp pue las Al agl wog uo tunt `aut¡ Jamod agt etn aauaJa3Jatu! uo a¡oago os

IeuSts e saietpei iaAeid osip ioedwoo agi golgm ut `aouaia3Ja1 -ut tseopeoJq Aq pue sau!¡ Jamod oe agl gSnoJgl 3ioegpaa3 Aq :sAem omt ut pasneo aq ueo (IA.L) aouaia;Jalut uolslnaIaZ

Jaindwoo agi ;o sllnsa3 130JJ03ui JO `J0nt030J oipei

e ut astou `uaatos Jalndwoo Jo tas uots -tnaiai agf ssoioe sau!¡ Anem Ietuoztioq aq ueo tinsaJ mil, s111330 aouaJ03J01 -U! .10111011M ow'. pue uo JaAeid ail utnt uaq,L jjo pautnt taAeid ostp ioedwoo alp gitm atetado 01 aotnap 041 iaS pue Jaind -11103 JO tas uolstnaial `lantaoaJ olpei alp uo utti a3uaJa3talu! ait ;o aoJnos alp st JaAeld ostp ioedwoo aii imp ants arm ol s! aalet oi dais 1sJg 041

aauaaa;aa;u! aq; Sulnowag

waiqotd agi amp Aew legi sdais uteuao ate aiagj `Jaindwoo e jo uotleaado ope.ua sasneo u 3t Jo `uoitdaoat uotstnaial JO otpet of aouata3Jatu! asneo saop »kid ostp ioedwoo ag1 3! `Janamog uottellMSut

I JecI

JelnitJed e ut .m000 iou Iltm aouaia3tal -ut ieqi aatuetenS ou s! a.iagZ

aouaptsat Aue ut pallelsut st taAeid os!p ioedwoo aif uagm aouata3Jai -ut qons tsuteSe uoitoatotd a¡qeuoseai aptnoid 01 pauStsap aie gotgm `saln.t Dag jo SI iJed 3o f iledgns ut sum -eogtoads ait gltm aouepi000e u! aotnap Sutindwoo g sseo e Jo3 smug alp gttm A¡dwoo 03 punoj pue iainioe3nuew agf Aq paisal-adAt aq isnw taAeid GD d

(13g) aouata3Jalut AouanbaJ; -otpet asneo ueo Aagi `suottonits -ut s,iainfoe;nuew alp gttm aouepJ000e iouis u! Altadoid pasn pue pailets -u! tou aie Aagl3! pue 'ama Aouanbatj -otpet asn pue aletauaS siaAeld GD

uotteiado iafnd -woo Jo uotldaoaJ uotstnalai pue otpeJ -sivauodwoo awoq-ut otuottoa¡a Imp uo seti JaAeid GD alp toa33a alp inoge tnq uotlonpotdaJ punos inoge aq iou Aew tute¡dwoo ait `saouefsu! autos ui

aauaaajaaaui 3o saaanos

aouaptoutoo toa3iad isowie nnogs pinogs iafuao agt te sSutssoJo-Diaz Jtaq,L iq$u ait ut 21.110Z pue ¡auuego 8aI ai1 ut zHaIZ gltm IeuSts auOf-lsal utmt e Sulsn Ag tsat stil oQ

SwSewt oaiais Jouadns u! st¡nsai Aoetnooe aseid gons asuodsai asegd map! ue aleolpu! mom slgs (I aJnS13) uotloanp awes aqt u! SutssoJo stxe-otaz snoauel¡nwts anei wogs s¡euSls om1 ata zHaIOZ PuE

zl..PiZ jo sauot isaf olpne Sutsn JaAe¡d GD aq1;o apew aq ueo lsai asegd d

asuodsaa asegd Suiuiwaa;aQ

saioletos Jo3 rap 01 Almois os!p agi 11l1 pue (luaosaiong e iou inq) g¡nq leg outoa¡a ue wot3 igSli Apeais `Suotts e asn uuo31un aq wogs aoe3Jns anlloagaJ ag1 wot3 igStl agZ aoe3Jns ait aulwexg saioqutd Jo.; apago pue iqSg ait of dn os!p ait moil oslp up' -qoid ail autwexa `aioaqo ¡e1111 e SV

te s! taAe¡d si! JO os!p e Jaglagm aulw -Jafap 0f pasn aq ueo poilaw stgi `dn

saluoqaa!a uo slooq SL uetp WOW paysgqnd sey umuni aauelau3 e1PI03JlIJ

sdoto GD e ittm wa¡gotd ivaledde ue uagM ostp issi e se 1! meal pue asod -Jnd stil Jo3 ostp auo awe iss wogs gam se suetotugoal aotntas pue walsAs co e jo Jasn Kiang =pp Suoiiom pooS ut aq ot umouai mg) e SulAe¡d Aq i.ieis ol s! JaAe¡d ostp ioedwoo Aue SutotnJas ut dais lug snotngo alp `ato3aiaiZ

ostp anuoa3ap e se aidwts se aq ueo a¡gnoJl aii 'paw -uStlestw JO A¡qwasse otldo weaq-Jasel peg e Aq pasneo aq pinoo waigotd slilt gSnogtl`d stnodotp tueisuoo aneq iltm `aidwexa Jo3 `olpne agZ A¡Jadoid aioeil iou saop iaAeid alp imp luteldwoo alp gltm Al!toe3 aotntas e ofw JaAe¡d GD e eutJg ¡pm Jawoisno e gSnoua uai3p

os Alleotfoetd JO aiqtstnu! aJe tegl `sagoleios JO saiog utd se gons `si¡ne; aneg Aew pue podium aq ueo soslp ing `sued Sutnow ou aneq Aail asneoag papad aJe sostp toedwoo gr imp awnsse ol gSnoua Asea st lI

¿aaAeid s;i JO asip aq; ai SI

pagnbaJ aie sluawisnfpe JaAeld os!p lord -woo ou asneoaq Aimeinonmed `aigetutni pue ptooat ouoqd Soleue ue amp aieJado pue dn tas o1 Jaidwts `a¡dwexa Joj `s! lI -asn 03 Asea Algeaitewai s! walsAs agi `JaAeid si! pue os!p foedwoo agi gloq jo uopeops!gdos otuotioaia ait pue ue ait ;o atels ail Suuapisuoo pue `Alpuau3 -Jasn aie swaisAs JaAe¡d os!p loedwoD

taAeid QD ait 3o Jasn ait pue `.aug Jamod oe 042 JO (sauaueq Jo) Ataueq e jo Sutistsuoo Aiddns Jamod IeiJalxa agi `.waisXs punos Al!¡apg-4Stg patetoosse agi `.JaAeid oslp ioedwoo ail :oslp ioedwoo agi :signai jo saoinos a¡glssod ang anlonu! ueo swaisAs aaAeid (UD) os!p ioedwoo Sutlooisaignois

siuoldiuds amo.q ai/1 fo sasnna amssod ai{; untop Suuuo.i.rvu i{1?tt map !pat I mod s.radv1d aste lovdzuoo Sup! -nias uo sayas v ul yrod lslif alp si spa

Pa033I13 ullseIli Ag

aaAeld 2sip p»dwo, aye buI,IAIaS

aauao) owny

Page 55: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

1.9 Mo/ouyoel 6uRnJes O¡u0J30e13 8861. Je4olo0

Pe0 Aldea uo (es) e1340 pie0 Alday uo (ES) e13n0

IEES4 0140 `e111Aueei0

98£ x09 -0d arlan o :do; »po

Aeuow Jo moeyo 1!ew JO £149-94S (SIS) IllVO peldeaoe el9 OklVO k131SVIIY Pus VSIA

IMON S3dV1 anOA 83080 kiOA 941;o sloedse

eJow Auew sJenoo osls edel 5!41 2epul!e wru0 oeplA eyl pue Jolow uº;ºdeo ey1 Iawoo ol pe -sn sweisAs mes eyl inoge rueel osie I1!M noA 'sepow pJ00e.1 pue rloegAeld eyl 41oq u! 'aoA eti u! s!eufi!s olpnV pue eauewa40 'eoueulwnl ey3 sesseoad 1:10A eul Mou weel 11!M noA

5613SS 30Iad kllVd3ki BOA 01 NOI100OOk11N1

110A eyl uI wieg ey; lo ewos eoeldeu co MOy se 11eM se 1:13A 94l ul wed odes eJIl -ue ayl uealo oi Moy weal II!M no/, edei sly; Jo; pennbei EUE 6140011os Jo ciao! leioeds oN Jasn a0A aBwene ay; Jo; pau6lsap seM ade; situ S6'L£S 3OIöd

1:11Vd3ki ONV 3ONVN3INIVW 1:10A

.sl!na!o Ienioe u! pesn My; Moy pue fume Jeyllj `wollosde0 `erewJo;sue,g 91100 `Aloeyi OV ;noge weal !1!M noA

St= 33I1id OV OMl 1aVd-nOA ONV SOINOa13313 JelewRlnw Is11g10 94l esn o; Moy se 11em

se oussstsea pue lueunO `eBesloA 'Mn1 sw40 'sunaso leilsied-semeS;o uo!leu!qwoo su! `sgno -40 lelleged `sllnailo semas inoge wee111!M noA

S6'S£S 33I1:1d O0 3NO 11:1Vd-nOA ONV SOIN0k111313

Ise!snylu3 31ualaal3 ayl aoj paub!sa0 socle'

oap!A anoj seH moN OONVOfI iiiadel oaplA SHA woaj

s3!ualaa13 uaeal ue3 noA PAON

Z9Z8-£99/L1£ S£194 NI 'ellseoueea0

'IS uosiloef N 409

VL3?R 111111111/ 90 ter

.3H0W 100 aNlj

sue!a!uyaal aoI

uo!le!aosse !euo!lewalu! I!;aduou e u! sua 10 IIV

Sk1VNIW3S 1V3INH331 * NOI1V31311H33 *

33NVaf1SNI 1S03 MOl * 9NINIVa1

1N3W39VNVW SS3NISf18 * WVN9Oad 9NINIVd1

1V31NH331 AlH1NOW * S9NIN3d0 80f

SNb'IOINH031 NOI1N311d

Tºz9-896 (z09) D S'j001 mgr ZV 'x!uao4d w' A' r ;aaAS 419f7 'S STOL ®1 1NI D51 11

lAepo; Ado3 aa.y moA Joj a;!Jm JO He) s1p1 1001 Où uey; 310W jo au!' snowej-pmom s,uasuaf sule; -uoa oste ßole;ea Jelndod s141 'Sap -uaße ;uawuaanoß pue sapo;egogel 'salueyaaw ;uawru;sul 'slooyas 'sJaaulßua 's;s;ualas 'suelaluyaa; aluo.r;;ala Aq pasn sloo; uolslaaid pup -o; -weg JoJ aaJnos alßuls moA "swap A311enb 000'Z uey; aaow y;lm pmed-wer s! ßote;ea mau s,uasua£

stool uoispaid Pui-oZ-P.e

o ßoiele) Mau

17-4S£00-000-400 011 3130IS £O4OZ 0Q `uo18ulyseM `a2T33O 8upuud ;uaunuano0 Sn ay; way alget!ene s!

Iaplooq ayy uOtss!unuoj uoneatununuoD lampai ayT ,Gq paiedaid laplooq suralgoid aouaJajgai uI Al-o!peg anlos% pus ,C3RuaPI 01 Mon

agT ynsuoo IySnu noA `uoüeuuo3ui iayun3 io3

aiqtssod su JaÄnid co agi woJ3 Jn3 se wooJ aua.la33lP e ui Jaanduzoa 341 a3eooT JO Jailli aSloü-ault e asn '3apno auaJa3

3!p e o3 Ja3ndwo3 ag3 aaauuoa `Ja3nd -woo inoX galM 2uua3Jalu! s! JI

las Al e J0; pinOM noX su aJnpaaoid mus ayI Motto3 `pnat ulMa papiaigsun sasn JaAlaaaJ ay1 pue yAi3 uo s! aauaJa3Ja3u! mn 3I dnxald wnwiutw J03 JOAIaaaJ aga ;o loeq ay3 uo xapsdooi aya asnfPe 'Nid u0 s! aauaJa3J01111 ay3 JI las Al n g3lM pinoM no,t sn ;sil!' aapno auaJaIpp e Suisn Á{j uo yloq Jan!aaaJ ag1 pue Jahid GD aga galM asa3 e uni 'IeuSis Suua3Jal -u! ue dn Smpiatd s! JanlaaaJ olpeJ e 3I

dmpld aauaJa3Ja3ut wnwlulw pun dnlold

IeuSis Al asaq ayI uaam3aq aslwoid -u103 n ag 01 paau ,tnw nuualun 341 jo uop!sod ata pauJna ag pinoys nuuaaun inoX gOnIM u! u011oailp a3ewixo,zd -de 341 s! aeys Iulod dnxald aauaia3ial -u! umuilulua e Jo3 euuaaue ayI moi uayl pue ui-peai Jnin3aJ moi( jo aaetd u! 3! pauuop Joopu! ira-IiggeJ e gIlM Iuauivadxa uta !loi( `JomoJ e anng 3ou saop euuaaue mol( 31 aauaJa3JaI -u! ato a1nuILUIIa HIM uolaeauauo Sa!

SulSueya 3i aas 03 euualue 343 3unun3 ,CJI `Jo31%1oJ e g1lM padd!nba s! euua3un ay1 3I IeuS!s Suua3Jaau! ag3 dn 3u! -314 ag ptnoa °sie euua3ue Al ata

u00£ ae palnJ Äiiensn aJe steu1u1.121 asagZ AZ 343 uo sieuluual Indu! euualue ay3 an pun

(u00£ 3e palw S! euua3ue mn 3i) euuaaue ag3 ae (unieq) Jauuo3sueJa 3ulgaaew aauepadun un tie3su! oa aney pinoM noX Ing 'Peai ulMa ü00£ ag3 Jo3 aigna Inlxnoa IySL a3nlpsgns oste uea noA

aug u00£ papialg5 g3lM 3l aaetdaJ `os 3I PaPiallimn ai mua mil ay1 'pnat üIMI IO puai aJIM-Z Se uMOUJT OSIe `auit

uo!sslulsueu TT00£ S! pnaiuMop aya 3I sieuiuuaa Indu! IeuSls euua3ue

s.A L 341 OI palaauu0a uayM papunoJS Xiinatlewo3ne s! 1n41 piE1g aliiuiaw yalM paptalys st atm gans Ile asnnaaq aaJnos dmpid ieuSls aauaJa3Jaau! aiq -lssod e se Xpleipawun u a3eulullta una noL `atqea ieixeoa s! I! 3I aigea ieixeoa TTSL Jo auii uolsslulsueJl u00£ Jag31a aq

@M nuuaaun KI, 341 Jo peaiuMop ata gaog Jo (pnaryMop

ag1) auli uolssnusunJl saI `euualue Al 343 tuai.; dmpid Áq oste inq aui( JaMod ag3 wog mals ,CiuO IOU aouaJaj-Iaau! aya 'asea 3ntp u1 ,ipy3lls u aanpaJ ,iryo itlM inq aauaJa3Ja1u! aya aaeulunla Iou tilM slapno A,I, SulSuega 7ey3 aiglssod s! II

aauaaa3Ja;ut a1[t-aaMOld

Ja3Ig asIou -atm n Suliielsu! Lq os op una noL `3apno auges aga Suisn anul3uoa 03 3uIM noL pue IA.L aya 3401.1131 Iou saop poy1aw 5141 ;I aaua1a3Jalu! aga salutqui ja aeg3 auo pull noL itlun slapn0 aua1a3

3!P Supül daa}I pion uoIsua3xa Ioo3-OS

Page 56: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

886 G Jegolo0 Mo;ougae1 9 6u¡apues a/uonoel3 Z9

'(Vw) °I x MOO'S no dl ;o dap e6ellon e 4e6 noA 'siolslsei esey; y6nayl ssed °l-lou pue °l sluettno ueyry( sieuenuoo s6e31on -ol-lue.uno se Fd pue :a snolslsei 6ulsn Ag smtoM llnalo eyl AOl 03 A0 Alelewlxadde ;o e6ue1 EN; teno uolletedo telodlun ;o w.1o; lseldwls eyl epinad ol peebe.' (lndul eoueie;et pue Alddns temod ssel) 80-oya sin ;o uolloeuuoo en smogs 4ln0tlo slyl etneld

PA00'0 oPA00'S - oPA96'6-

oA

00000000 00000001

11111111

3000 AdVNI9

aeZ elBos IeH 9IB0e und

NOIIIQNOO

(VW) 1=s = °A (VW) los = °A

-uoa fznaita oiseq NI smogs i am8t3 0080-DVQNi'I

agf se 01 paiia3ai sarnpaunps S! DVQ stgf `saainos Mid -1.1011.10d aatnap 80171-DNl Eio.toioyl No alp JO uotsian uoi3e.tau03 -iafsi s st 80-DVQ ata ioieui8uo

'satgitiouoyQ uotstaaid 8utpni3 -ut swims manas rnoi3 aigeitene Si

pue piepueis ,Cifsnput ue jo 8utgpautos Anou st DVQ itq-g sun aatnap 80-DVQ agf papaaias ansg I'appie sup io,q

80-3V1 agi

aainos aauaia3ai isuiafut us sasn DVQ 8ugidpinrt-uou V 'DVQ 8ut,ildtfinut e jo aidutexa ue st 80-aVQ ag,l, pione indut agi pus (fuaiina io) a8elion 03uaia3ai agi 3o ianpoid agi oi ieuotfiodoid st Imp Indino ue saanp -oid pue aainos 03uaiO3ai op [swam ue sasn DVQ But,Cldtfinut ati,L gut,Cidtfinut -uou pus 8ut,ildtiinrn :faxisut agi uo uaas aie DVQ jo sumo.; ieiaua3 on>`l,

'Zt y6nay3 S suld le al eyl ol pelldde sl IOWA `ptoM lell6lp llq-8 eyl sl Aylo eyl gl tegwnu uld y6nay3 pelldde 'f'1 'lue.uno eouene;ei eyl sl eu0 pnoM lell6lp pue eoueue;ei 6oleue :Tom ova en emew o3 pennbeJ ele leu6ls lndul;o sede oMl °I -mu pue °l :slndlno d.lelueweldwoo oml sey 4! 'JeneMoH

'Jeppel >=IZ-d eyl s! so -ova OLD Jo Atllnal0 lewelul eyl ; meld

oPA00Ot=1"A m00S=1"d='d :111 dOi

1'd 9sz 'Id xz r"A x SSL = r"A x -v Z= aivas iind(°I+°I)

Odom AdVNIe

Ñ Zl 14 01. 6 9 L 9 s

r"A

uotsianuoa a$sfion-oi-ivaiina io 8uP31gs lanai iagita .I03 s.iagtiduis Ieuopeiado arnos pue (uteluoa op spy(' autos gatgm) aainos a3uaia3a.t agi aie papniaut aq iou 1481au Imp satuoiiaaia Xiuo ata ssaaoid agf io3 papaau satuoiiaala alp 3o IIe lsoutle uteluoa isgi sDVQ DI Itg-8 `fsoa-moi ia33o siainiae3nueut ivaia331P jo iaqmnu V a8eiion io fuaiina $oieus isuopiiodoid e of fuaumiisut ielt8tp iagio io iafndrnoa e unoi3 pionn riieutq s siianuoa fegt aatnap io ftnaita e st (DWI) iaiianuoa 8o1sue-oi-1s48tp V

s.tal.tanuoa 8oieue-o3-le3!81Q

uoifaniisut Sias qsi uo -spueq aiuti e gstnn dagf pinogs 'iaiunoa -ua of 403!!i are siapeat 19Sa asti asogi of saldutexa agi situnl uotiaalas isij sioinqufstp sued atuoifaaia moo' ,iq pips Xlleo!d ii aie feti sou!!! iofanpuoa -tunas fuatuaaeidai agi 3o atout io aro

yegg mJomqrnuoo manbai3 e s) pue soruonoala uo sroq IBanes paysnqnd sey Uaau18ua somonoa)a ue

111oi3 .to s0u7s88111 rCggog ut siastuanpe iapio-peut alp iagita rtoi3 aigeiene oie asaqi iagiagnn pautuesxa I `ia3lisut alp uo aie iegi Amu agf rtoi3 saidwexa agi 811t

-paps ui fuawdtnba pue sitna ta Isat3 -aeid ut punoj rilivanbai3 alte Imp stalian -uoa elep lsoa-moi isianas je roi e

aiel iitAn sivauniielsut isianas Ixau aqZ u8tsap iafianuoa elep oi sagasoidde atseq agi pus simaita (iauanuoa ieft8tp -oi-8oisus) DQV ieindod passnastp sat

stgi 3o sfuacuilelsut ino3 isei NI

szaLIanuoo mop jvouavid ataos 1v rol 1i, ant

zpuouz spa uozstanuoa Q/y uy 8utuuof -.dad Jo'sanbluzpal lv paalool ant zpuozu 1sv7 szauanuoa (VIS 8olt,uv-ol-irn:8tp put, (Q/v) lvu2zp-o1-8olvuv paquasap anvil sacas sup ut slavd matlsq[azj

1 D 'iaeD p gdasop

A laed-pponn 6oieue ay} oi saalnduioe buiBpann

Jawo2 as;ndwoD

Page 57: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

E9 Mo/ouyoel 9 6uRnJeg 9/u040e13 8861 Jegoloo

sluaurlmdaQ djilluo j,y .v1n8ad s LySg snld slaplooaJ adel 3utlsixa wok; s1aJJip 1! Moq aJoidxa put `,eoiougo0l sigl Jo sums 1u0uno ag1

noX JoJ 0quos0p II?M aiotue vgsg Tit Xuienb punos mind Jeau g1iM awog tu plooaJ o1 Xliirge agJ sppe tng `osip

loedwoo jo ,Ctiienb orpnt aq1 Jantiap ot sasiwold 1eq1,C3oiougoal e st adel otpne iegrQ :,i,dQ--aiepdil noiougoas

slaindwoo ieuosJad 2uioinJaS u! Xeid soqold oi3oi put saxog inoxeaJg 'eclat toda) aiol aql woe twat osie ihnoA m000 Xagi uagM swaigoid alp loauoo

rn saM saioidxa put `slalndwoo ieuosJad on2tid 1t41 swaigold otJtoods agi sassalppe ,LaBSg ZutseaJoui ,Cituelsuoo

st saoiJJo put sawoq ut punoj sJaindwoo ieuosJad jo Jagwnu agZ :iaodag ieloads--Bulolnaas aaindwoD ieuosaad Lvnuv`

sa3uego asagl g1iM adoo o1 papaau luawdinba ag1 pue uetotugool ag1 jo uonEotlsigdos ut aseaJout agi soquosop Zgsg *um( aqi JOAO paungo seq 3utoinJas soiuoAoaia Jawnsuo, :8upinaas soluoaioaig aawnsuop It! saueqo

*sued luawaoeidol 2ututelgo put 2upoaias uo uotiewJo3ut 108

o1 a1agM pue `sued tuawaoeidai puiJ o1 a1agM uo uonewloJut gum noñ sapinold ,i,aBSg sueptugoal 2utotnJas oiuoJl -oaia 8uioeJ swaiqold tsa23iq aiil;o ouo st ued paiteJ u JoJ tuawaoeidoJ toouoo agt 8utput,g :gaud ivawaoeidag

,raqtuaaaQ sotlsualoeJego um put slonpold ButJiM jo spun tuaJoJJip mint Jiooi e s1aJJo Lem :aigeD pue aalm

wogl anios ot aigePene luowdinba Jo spuni alit no,C smogs put `swaigoad asagi Jo aaios saquosap Zgsg slnodoJp pue sees `saáms `saJitds aun JaMod war.; a3ewep o1 aigildaosns am slonpold otuoJloop Jawnsuoo stipo :aiepdn ivawdlnbg 3uluoupuoD aaMod

aaquranoN

Mo1ompa1 y supplieS

O!UOU.IOB15 1 da 2ulzuop

qluow lxau passnosip slmaJta agl 41iM waigold 111g1 aniOS uta OM (£2Uz2i 10J meow sanitn ag1 q1iM `inS) aoutpadun aaJnos Om n s11q

1i 1tg1 st ramp sigl 41iM waigold d (dw) °I x in00'S 10 al 3o dolp a8elion

11 102 no,C `sJolstsaJ asagl qBnOJq1 sstd °I-1ou put °i s1ua1Jn0 uagM slauanuoa 08t110n-01-lu0una st £2i put zu sJolsisaJ 8uisn iCq miJOM Z aJne3 ui 1molio agZ ('AOI until ssai gS'11 Si A96'6 :a1oI1) palaadxa aq rem s11 AO! u11g1 1ag1111

A9'6- aq iiimt suoilipuoo ainos-iinJ Japun lndlno aqZ '(H JIH Iit) üüüil Si p1OM lndui ag1 uatiM ,iiuo lsixa iitM lndlno ai11os-IInJ a4.L 'MO"I aJ11 slndui

It1i8iP 10410 lit Put HJIH st (OW lu110

-giu2is lsow) gSNi ow uatiM slnaoo uoil -taus spii, OOOOpOOi si prom lndui agl uagM uani8 si (AS-) a8ulion ai110s-Ji11q

y 10110 lasJJO aPT 'AO st lndlno odQ 041 `00000000 si p10M lndui ag1 uatiM 'A0í O1 AO XIalnwixolddn JO 03u11J alp 1aAO uotltlado 111iodiun Jo uuoJ lsaidwis aql apinold Ol paJinbal (lndui aaualaJal

NeSa put ,iiddns JaMod ssai) 80 -Oda ag1 Jo uotlaauuoa aq1 smogs Z amA3

uolieaado aeiodlun

AS+ 01 AtZ+ st HJIH `AS'0 01 AO st

MOZ `umoqs uoiltJnBguoa aigil11dwoo aql ui (papunoJB st i Jagwnu

uid `uoiltaado 'i.L.L Jo3) i Jagwnu uid ol paiiddt awn agl lasald aq tiro slndui asagl amado 111g1 sianai 0i$oi aqZ uMogs se `Zi enolql S stud lt i aql ol paiiddt si goigM `mom It138iP 1iq-8 ag1 si Indu! Jo adXl 1a410 04.L

aäunoe ao maaana äoluuu Iuuoilaodoad

u mauinalsut Iuliip aaq;o JO aalnduioa u may

paon Lauutq u spanuoa luqll aaleap JO Imaala u si (WO)

a31a3nu03 201uuu-03-Iulie V

(uoisioald) z50'000`S !a'ZI put A00'Oi sa'A ax11w `sindw ,sJeutq alp A1ti?giltdwoo in Jog -PI ol Sa'A uanuoa 01 101sisaJ 1uai0gJaoo -alnl11Jadwal-Moi uoisioaad n put (1ati10

Jo) i0-3g?I ag1 st gons winos a3ulion aoualaJal uoisioald t ,Cq paltJauaB aq Amu luaima sum, 171 Jagwnu uid g8nO1q1 paiiddt `194i 'maim aauaJa3aJ ati1 si auo p1OM itlrBiP put aouaJaJaJ ñoieUe :JiJOM odQ sigl aJi11w Ol

palinbaJ alt itu8is lndui Jo oAi,

(twSL'0=°I-lou `duiSZ'i=°I `si 111gl)

yurZ = °I-1ou + °I uagl `dw0Z st 1u01

-MD 1nd1nO ainas-iinJ ag13I :XJtluawaid -WOO 0111 slndlno asagZ °i-lou put °i :slndlno oMl s11q li `JanaMOj-i (slap P11I 2IZ 2I uo alow JoJ anssi Xinp ag1

Jr! 1auJoo lalndwoO aas) 1app11i NZ -2I a41 si 80-odQ 042 Jo iCJlmoJia mum -ui au 1 a1n3i3 ut uMOgs s11 amts agl aq sXtMit IIiM ,iagl asn110aq 4oiidwis Jo aJi11s 041 Jo.; si11uiwlal Xiddns -JaMod ag1 alaiap iiiM I `sump luanb -asgns uI '80-odQ ag1 1oJ uoi1n1n3g

Page 58: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 reqomo0 X6o/ougaal 6u/a¡nres a/uogas/3 49

solisuemomego uolsslwsueal ág611 reueg ro; regme6ol pelueweo ewos 'ssel6 to saoald jenpiAipui luawaoeld anile'ar egi smogs week sue' wooz gaul-ß'l XO8 Jepleugog e to enelA leuolloes-Ssoro eq.!. l, arnBld

S1N3W313 JNISf1003

snap; jo ino aq ipM punoßxaeq pue punoaSaao3 agm ut Sutgl/Caana `pasnao3 ,Cidaegs st pue aaueistp anew agm ut st maafqns alp 3I snao3 jo ;no aq IItM loaf -gns atia 3o muoa3 ui Suttgaana `pasnao3 ¡Wimp st pue muemsip aunt) st laafgns' atp 31 snao3 jo mno aq IIiM punoaSveq aga ut 3uigmXiana `pasnao3 Xi -chugs st pue punoaaio3 alp ui si maafgns aim 31 `spaoM .tagmo uI maafgns agi puigaq pue jo muoa3 ut maa3 Mai e smaafgo uo pue maafgns uasoga alp uo Äiuo pasnao3 Xidaegs aq uea eiautea ail `sainuade aaSrei ti1iM piag jo gmdap atim sioalüoa suaI giSuai-ieao3 e jo aanmaade aqy

sum.) ui SPiam

sdoms/3 leim )i toM aim .roj ameanooe atour aq om sdoms/,I, unto siagdeaSomeurauij aae3ans urig aim swum pue suai agm

gSnoigm sassed imp mí211 jo lunure alp

HOlOW 3AIHa WOOZ

NOIlOV WOOZ HOd S1N3W313 JNIAOW

soma" anien agm `pogmaw sup III sdoisd ao uotssi[usuei; sasn Sutmea .ia[poud

sasea.laut atuim aansodxa `saseaaa -ui amen auauznu agm sd aanmatd e asinapam om papaw st ag$ti ssaZ seaatuea Wig ui pasn aq uro (satutm =sod - xa io) spaads aammngs aaise3 -muanbasuoD ssed om mq$ti aaour Mope saamatuetp animaa33a aSaei gmiM SOsuai msed 'pale' st suai agm .ramse3 agm `doms/3 agm 3o amen aiaatunu alp .'aiieu's aqs

9 S/3 3o ainmaade animeiaa e sapin -cud Sieg 6g aamatuetp agm Sutanpaa :8Z/3 sawoaaq aanaaade aim `oMm 3o iopej e ,Cq paseaaaui st aamatuetp antmaa33a agm 3I iamauretp antaaa33a agm saunm .moi st mete gmSuai Iraq; e sett suai 17/3 uy P/Zd=/3 JO 'EWE suai aeaia ag3 jo (p) .'amauretp antmaa33a pue ('Id) iiSuai ieao3 aim wag panuap st Sutmea ail `aaqumu do/4 agm se uMouX XiuouuuoD a.mzradv

S1N3W313 le 3A11031'90 OIStlB

3Hf11H3dV HV3H

aacze8sw 8ur -JaauBug meows io; Jog* lsomiaa1 A1 ain si nun

an'mpa.r pamea oie sLualsk ieatmdp

mi mu! paaagmeS Sutaq miSg ssai si amp asneaaq mgSuq se mou st am! aq,i, .suai agm

jo aanmaade pue .iamauieip animaa33a aga saanpaa ski mue.ua agm Sutnourag aSpa suai agm aeau seaae gSnoigm Suissed ski spoig sui .reina.rta agZ sut ue 3o io muoa aanuade agm gSno.rgm si uoim -aomsip suai Suianpai jo pogiaur aup

sdo;s/3 pire samiaadv

ua.rung pup .rapautps `uourfng 'uouvj `xnapua8ud ifq papnaid svert ap'zrv sup1JO' uo'muuofuj 986I rsn8nd `8uuaaur8ug lsvapvo.er u! parpstpqnd `saimdp Al JO smuatuaig waif paJdvpv svht pvtaaivtu s'rp,l

zivag 1g3 Jig

III lied s2,13do oapiA jo s;uawa13

aauao2 oapy%

Page 59: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

gg Motouyoal y Bu¡a¡nias o¡uogoal3 8861 10go100

pay;1a 6wwoaaq pue 133SI Inge leualew puns

catielsod L$ +) 5$ $ald0a

31V1S dIZ

/.113 ss3HOOV

1NVN

LOl6-126 (L18):60L9L Xl '4410M 1-40j Aioeg 'M 80LZ '133S1

3Deluo3 uollewuo;u1 ajo 0

sabed 09 '>Iaeqpaded

1 X %g wexa 133 asepossV asp uo suo!isanb pass!w uai;o ;sow

ayi 6uuanoa Ieuatew sapnpu! 11

sue!a!ugaal sa!uwsaal3 pa!;lsiao ;o Atapos leuo!tewatul alp woJ; isal

130 Ianai-asepossy asp Jo; apin0 Apnls ays Jam uea noA MON

spiepuess 133 0l dn wmpad ueo pue spoM

JnoA inoge snouas aie noA says ways Mal tI PIa!; .inoA w leuolssa;oid e

aje noA see Mousl aldoad ssal ue!0 !uyoas sd!uossoala pa!;!u.iaa e 6u!a8

uoissajoid anoA pnogd snapas ja0

`sumswuyoal

pep Aldey uo (SS) ep,!O

Valk'061£9

u!suoosi/N Jalemal!4M 8Z x013'0 'd

:O3 53/NOZ117373/ /77__

aOlniag put, A;pen° up ;sJid /'1 \legit

LZLt-£L17-17 :XH3 . . .

11e0 6uuapip anoH tiZ Jo) 10

£S56-ZbZ-008-1 u!suoas!M u

ZLS6-8SS-008- l aaad-Ilol IIeQ 6o1e1e0 MON anp;o Ados aaad anoA aod

sani pue smog ruaw -aoeidaa ;0 3NIl 8äd 841 41!M

slonpwd IIV up aalueJen0 %001 41!M

slunoos!Q awnloA pue saoud MOl Aeptiam3 41!M

sionpord o!uoiloal3 000'01 lamo LIl!M

' ' 3N0 3H13at3M saiaossaood ig sped

3Iuoaloa13 anoA IIH um

:03 5.3/NO?l13373 / /7_

'1455 sagemr aniq pue uaad 'pal mu! paieiedas s1 aSewi JoToa-IIn3 a111 mo113o uoissnasip e giim sayas s1113 anupuoa ii.am 'plow 1xaAi

snao; a111

jo luawlsnfpe aimba.i uago 31.1OM asoia ,ilawaulxa .1o3 aSue.i wooz 2111 jo uoll -iod o.iaew teiOads e 113!M swais,is suai `ianamog (geuai moo.; lsaliogs) Suluas ai2ue isapiM se 01 paisnfpe sl suai v111

se snao3 ul sulewai 2uluas (gguat wag; lsaSuol) Isasoia a113 ie snag; u! s1 1e111

auaos e `sual wooz pau;iisap-iiaM e ui paAieq aq 01

ainliade 0111 aimbai sats,Cgd;o smei agl `,ilaleunpo;un aSuei wooz v113jo spua 111oq w sgiSual maw agl pue azis aSewi alp saignop sdnoi3 Aim pue wooz ag1 uaaMlag iapu0lxa aSuei }iZ d iapual -xa aSuei e grim paialle iagiin; aq Xew walsk wooz e jo gi;Iuai ieao; agi

saainap dmiaid pue .iauTlds weag am 01 11 s,Ceiai pue dnoa wooz a113 wo.i; a3eun a113 dn s3lald dnoi3 kepi .ieai agZ it moi; 02ew1 mau e swam pue dnoß anllaafgo a113 ki paanpoid ae -wi 0111 svas dnoiS wooz ag1 `Xtlaaiioa pauoliisod uagM sluawala aAllOaiioo sureluoO oste dnoß ;IulKeaem .io wooz e `sdnoiS leal pue luoi; 0111 uaamlag uol3ae.i3a.i Ileiano 0111 uo lOv;;v Ile aneq saa!pu! anllOei;Oi .310113 asneaaq iea131.ta

aie siu0w00 lealldo io; pasn steualeyAI

X11I1qels io; .ta11laSol paluawaa aie sdnoß a111 jo sivawaia 011Z

suolleiiaqe Ieatido saanpa.i gaga gilm pasn suai aAilOaiioO Iua2ianip d malsXs 0111 ;o .teal pue luau alp le sadkl xanuoa-oueid om3 a110; 01 illds XIanl100;;a s1 SUOI

XVAuOO e `aidwexa ajdmis e sd luaw -aiv auo uegl 0.10111 jo s1slsuoO ÄIleuuou dnoß gara lnq `mais,is ieal3do wooz e man O1 pasn aq mop sasual aidwls

gi3uai wag; peg am smog osie dno12 .team

agi, peag eiaweO a111 mu! sassed 1q2It se azls a2ew1 leug sau1uu03ap dnoi3 tCvpa.l .to aruud cCrvuoilvls .teal e `,CIIem3

dnoß wooz apgvnotu e s! 1xaN áuli snag; a113 gilm aaueisiP PmTmii e iano palsnfpe aq uea dnoß anilaafgo tivuotj - Ms luoi3 agi ( i ain% aas) papaau aie sivam0la jo sdnoß aaigl Iseal 1e `1133uaI leao; atgelien e 0n3i113e oZ

padolOnOp seM suaI wooz a113 `asta Sunllou;i `voua! -uaAuoO iO3 /(ne011 aiaM SOSUOI Ieianas qi!m saligwasse laiim asneaag seiaureO

sMau Ai i0; swaigoid paluasaid ldaauoa agi suai .iaguoi e uoli -isod o1 1011m a113 paulnl ioleiado ag1 `main iasola e paluem lolaaiip a113 uagM eiaurea Al ag1 ;o mug a113 1e pum e uo palunow aiaM sasuai gauai-ieao3 paxg ;o 1as e `salldo wooz 01 loud

wooz äulanpoalul

aleidaoe; a113 jo eaie 1daMs-ureaq agi puo,i0q studs aSewi a111jo 1.><ed `a3iet o01 sl aim -iade ie0i ay13I paleununin s! aleldaoe; a113jo uoUiod pews e410 'Hems 002 s! ainliade agi ;i suap Mal ay1lo a.rnuadv map a111 s! eiaweO 0111 01 pa11Olem aq wogs 1e111 suai ag1;o iolOe; ia11loud

snao3 Iaeq IOaiioa woman 01 !MOW Xlleaiskgd aq 1snw sagm oMl asogl sawilawos inq `uv0e am 01 ienba aq wogs saauelslP aniq pue pal ag,I, lunowe lewiulw e XtteiauaS s1 11 113no1131e

`aiglssod s! Xiiensn luawlsnfpe jo lunoure amos siapow e.iawea ai;lOads .ro; pauSlsap ale swalsñs lealldo `llns0i e SV eiaweO 01 ei0we3 wo.i3 svuen 1! pue `aauvis:p snaofxavq agi p0ltea s! QjD io agni uaaig 0111;o aleldaoe; ag1 01 sue 0yljo luawata 3iaeg a113jo mod awailxa Isom alp woi; aauelslp 0111

agm drolald ag1 uo ile3 isnw aüe - un am 'mama Ai e ui aueid rum a111

uo snag; lsnw a3ew1 ag1 `ii11dei3olo11d

.tog suai 0111 pulgag 1u1od aSlaads ag1 le snag; u1 aq s,ieMle lsnw sa2ewt pue parr.; sl suol alp `ianamo11 `seaawea y11M a8ew1 1saq ag1 apinoid o1

panow s! sselS $u141u2ew aldwls d suai atqeAoururn uV

aseaiaap o1 swaas-anilOadsiOd IenslA O1 ,ia)l a113-slaafgo uaampaq aouelslp panlaaiad a111 pue `saseaiaap PIai3 ;o gldap `sgi3ual Ieao; ia3uol io3 a2ew1 pamaiA ag1 ;o vAllOadsiad anilelaa a113 pue piai33o gidap ag1 spa; 3e oste suai ag3Jo 1112ua1 Iraqi a11Z

sino11 01 salnulm woi; sawll 0insodxa pannbai pue sasual;o pealsul saimiade Hews pasn e.masgo e.taweO 0111

1111M Ä11deiSolo11d )(pug ianamog leap -Oeid aq 011ualaujnsul s! Iana1111$11011.L

allugu! XtanllOa;;a sl Nag ;o mdap ay1 `atoquld e o1 paanpai s! Oin3mde a111 H

saseaiaap ainiiade suai 0111 se sasealOul-snOo; u! aie a.rm -aid ay1 u! slaafgo 11algm JOAO s0auelsrp ;o 02uei am-piag jo gldap sltl,i,

Page 60: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 Jaqolo0 Aóofouyoal 9 óulofnlag vluolloaf3 99

aqnl-aJnlold L917 IaPow )9â `00Z$ `1a3130113

JolslsueJl 12I3I1g JadnS alqeu0d 917-31 `009$ `sJaldepe oMl tp1M Jazdieue oapin PUS Al 817-ttA

'17ZZ1717 HO n101S 'anup 1smy,C11a110 &6E17 `0,pnâ $ SLZ$ 's101

-dvpv SI ylux 1olt)uannfal.là(O OL6 miaow Y'ó8

;IQg wd OO:ç 1a1f'v

SOSL-Z8E-I0Z `590L0 fN '^+yT'?! `7S ,Gawo81uo14 61761 -if ':BuvOlp maxim uolnpuoa lualpaxa ui

gloâ '004$ `Jalsal J21D OL2ID 20330 isag Jo 000`£$ `slenuew pue sapid Ile sapnpui `Jaldepe 1sa1 gDA pus nee -1211a DSyt1 44M JaZdprue Z9VA minims

7076S lly 'S8ullllg N 'any yunqq SIEZ `saluo11aa1,7 ssv10 'Uva744

vyol goSa Z$ `spmuSw g,l, Put Pauosse `OSi$ `adoosolllaso S9bI IaPOw )8E1 ' SL$ 'SLOT lapow

X8â `goro Z$ `OOZ â0 018 SPmTrew â0 swS

Z8£7 -ILS -Z19 ! ZEPSS M ',C911u1 'an"Q $sa'3111H

6147 'pvauleall BnoQ 'S£$ 30311e `sienuew 1DA 000SZS duos pus adel luau.w8ge 11 Slag duos

'ZOLI-IL17-SOZ :9099E 7V '91lq0111 '75 uollnd S OZI 'Mopaf8w11S J0310 alew-slSnuew JapR1

Pl0 `00Z$ `JoleJauaB luawu8lle Sig IaPow )P8â ºOoi$ `Jolvaaua8 Jul l0P V SU. D M IaPOW V32i

89017-St'S-LOL ! ZOK6 YJ 'my?' v1uvS

`Zi17£ xog '7(lvwapugl sawvf 1s113O3 3SVS PuaS ls[133o gySL `(paxoq) sagnl 8111n93aJ VJâ Ma)\1

'ZSI6-Z9S-17I6 !OSSZI AN vosputM MaAI '75 sso13 6Z 'tssal y oal8u y1sp 103 gSVS puas Jo pup sums pus sued luaudunba lsai Al

31VS H03

'68IEE Id 711473!141. 'Me 1saAt

sa18v3OZIOZ '430Z uy'SlonpoJd aaeJJ21u1 o2171A dq 8-pug4-1 S Jo3 o3ul aolnJas algeliene due/ai -lewagas/(llun uo palSJalllgo) suo11eu21sap olgn

'665176 VJ 'apuJuno,1 ' f was, auToH larl S176 xog Oá 'ynwS g 0a7 30 Aq palonb SI$ 8ulded aJo3aq Aeme las atp MOJg1

HIM -lualenlnba Jo alod ZZ}C9I,dg go pasn `poor)

7176176

VJ 'Kallvrl 111IN "any uolspe 091 'uosulxlvd putvQ 1an93aJ olueaoosuSJl IZ.LÀSOO98 IaPow

g1Nal 103 £Sk sues Jo ienuew aoinlas `opewagos

68I17 -I£8 -E78 7I9E£ Zg `vdwv,l ' anV uvllvyuvyy T78£ 'aaulaS s 1opall 'ouaZ 1opall aolJd algeuoseaJ e Aed mm adoos aaeJl -pup 1'Sr lapow xwoJllaJ Jo3 Ienuew BulleJadO

SELZ -9178 -VP 34417-0IOSI Vd 'sllvd lanvag any yrfi,q pIZ7 'eve d urv1111/21 '0961 02 101 -Id

luawdlnba 121H `.sued 1o3 adoas SSZ Iapou JeuoD

9Z9ZS VI 'uol8ulw --wd SSW -68-W '?(aun.« H sawvf 1(8010u92J,

SupinJas aluollaalg 3o anssu 17861 JagwaaaQ

ZZ179E 7V 'uoIMalg g '.any 1sa11od 10S `31Jw0H wlf 'aa3

a19euosmaJ Lue Led IIIM .NO AdoD 08S -DL 103

!mum aal,uas Jo/pue we.i8eip ailewagas duos

7E08 -66L-608 :OZ900 àld 'uowvd'vg 'oGuoO lg z-gg yF 'olawoll 7 uolleuuo;uT gons SulAnq uI palsaJalul aie aM Aiddns kw no,i anssl Jag10 ,Cure

pue 9# 'pd sanssl `Jallalsmau Jaumo dnls 1eolugoaJ,

0bL90 ¡O `uo18uu1ol 'Zfrz xog od g 1nymV 'saldoo Jo3 ASd IIIM

í3Z MOZI lndlno "op ueSJO sewogy Aq apew Ja13?Idwe 61IA IaPOw 1112131n4D XOA e uo uollew -Jo3ut aolnJas pue ailewagas `.O0S8 oaJals Jalsew puns oaJais SZgZ alnpow walsds JaMod `lan -paid punos _mu e uo uolleuuglui pue oilewagas

ZI656 VJ 's8&g `pvoll uP11777 9SSE '53tU011

3a13 s.7V ' VbZ6 slssego `81799Z lapow uosJaw3 1Z6S dJ laPow V'J2I ILO117iO-SSI9I Q sissego

I J 88VZZ Jagwnu *-ms e1uSnIdS `6IOSZâ17 sissega ghuaZ VV 0£I-O.L-9Z£80L9I Jagwnu Jas oAUos :sAJ, 2u1Mo¡lo3 agl 103 soilewagoS

SLOSS NW 'mad twvS 'ploauo0 'N 816 AL ZL 9a8upttZ smuoyl uoileuvo3ur alnulsgns uI palsaJalu! Os1e

wV 'n Uo P03I1ew ZZEMNOLE g(iTIL 'I11616f1V YIâ lapow `Jolluow LSIdsrP 51ep '3 YAI'â Jug MD

1,90LE NL `ulpfuul.a 'pvo?I aputsuouCad 96ZZ `d.tnto7 zap!. Ienuew aalnJas 103 86'6$ Jaauold ded o1 Sw11tM ION 1an103aJ oalals IN3/YNIV

ZOZ-XS JaaUoId e J03 aSed 111eJ2e1P ollewagoS

'Z190-Z9Z-1706 !610Z£ 'U 'a8uPJQ mod "15 magiall V -I09 'saluoJpalg s, f y Sulddlgs pue aaud 01 55 asln

-PV '8!eJD wOJ3 a14epene Ja8uo1 ON í8a1-of-laat

Soil 81e1D e Jo3 (pasn Jo Mau) peat! Leid/ploaag

'17ZZ617 HO 'Mo1S `anup 1s1nyd11ay0 Z6E17 'egg g JoleuannfaJ DID V0808 lapow uoJllaâ

6LES L8E-S09 S170LS QS 'ouuayy '75 y1S 'S 87Z iLL s'.19!8 sun1aJ pue ddoa Jo Lng 1[1M oaJals awog SI8Z-PI oluoseue,d Jo3 ienuew aalnJas Jo ollewagoS

'69LS-SEZ-8I9 7ZZZ9 71 'alllnalla8 ''pnlg p1mioQ3W 6Z1 'uolyBnvAtayy aua ddoa Jo Lnq ueD 2IOA V88.LA 143MH Jo3 !mum' aolnJas Jo/pue allewagas

IM.LI\IVM

alep uoRmarlqnd jo pvayv sgluow oMl 01 sJlaaM zus

uollanpOJd a1 sI d18S3 1Sg1 JaquauaJ assai

'Z1Z99 S)I `IJe,d PuellanO '106Z1 xOâ 'Od `d8o10u130l 78 8uI -alnJas a1uoJlaalg `a8umgaxg ,stapma21 :oi 11eyx

aulze8ew au11 uI sauT1 JnoJ

418no1 01 pallPa ag 1TInm spe `spuewap aaeds 3I swan aaJgl uSg1 wow ou 01 pe Ave null noA

eaP1 poo8 e su !age! jjo-load Ina( 8u1sn (pags114nd n 1ueM l,uop nodJl d3iaads) Jaqumu auogdaial Jnod apnpul oslm aseald (paleJedas aa1Jo atm sluaiuoa pum sadolanua) pe Jnod se aSed

awes asp uo ssaJppe pus aweu Ina( apnpui no,t (uauuM dlql8al Jo) paddl ais swall

:rem Ise am inq `slapeaJ Jno `nod o1 a8re49 ou 15 aalnJas sup J0330 01 Ád

-deg aie OM panlaaaJ are dati Jap10 3111 111 pagsll -qnd ale swan a8um1131C3 ,srapeag :aloAl s,.rollP3

aóuey2x3 ,saapeau

(14elS 1953 814 JO; )lJewpuel e ap!noJd

Ol Jo1s!sueJ1 Jo JawloisueJi e se qons ivauodwoo Jofew e apnloul)

'puno; seM une; a41 aJayM earn o!iewayos 8141 ;o yoials e

pue Jaqwnu ioe;oloyd swes a143

Jaqwnu s!sseyo pue lapow ayi aweu s,JaJnioe;nuew eqj

:apnlou! osie aseald 'sd!l 6u!loo14salgno41

pue saJnow/(g Jod MaO!/V8s ayl

ol t(Jnfu! Jo las ayi (DI a6ewep ;o Äl!I!q!ssod a14i inoge suo!lneoaJd

hie pue pawJopad seM J!edaJ ayi MOLI aq!Josap wogs II

papnlou! ag p!noys osie !!e.11 es!e; e Mollo; oi no/( pasneo

leyl 6u!yiAue-suo!o!dsns Jnolt pawJ!;uoo noÄ MOy pue walgoJd ayl ;o asneo a141 paloadsns not( t(yM io uo!iduosap dais -Äq -dais 'pa!!elap e apnlou! p!noys ll

'ue!o!uyoai lualadwoo e 01 a6ualleyo e;o 6u!yiewos

luasaJd wogs pue sno!ngo ag iou pinoys J!edaJ pue s!sou6e!p ayl

walqoJd uowwooun t(lan!ielaJ e ag P!nO14S ll

:sluawala 6u!Mo!!o; a141

seq d!l 6u!ioo14sa!qnoJl poo6 y paq!Josap spoyiaw

1eJ8u06 814 u! sa!! 'JanaMoy 'an!en S31 'ivawd!nba io aoa!d O!;!Oads

e u! walgoJd O!;!oeds e io aoueisu! !eniOe ue 1OaJJO0 pue amps!

'asou6e!p ol pasn aJnpeooJd e saq!Josep d!l 6u!iooysa!gnoJl y sd!l 6u!iooysalqnOJl paldaooe Jo; wai! Jad gZ$ 64ed osie s! l'8S3

lapow nl el6u!s e Jo; saJno pue swoidwAs uanas Jo x!s

1!wqns not( ieyi paJJe;eJd s! ll suado

leyl lu!of Japlos awes ayi Jo s!!ei leyl luauodwoo awes eyi aq !!!M `aseo t(Jana isow!e u! :swoidwt(s

asoyi 14l!M les ;o lapow pue pueiq Jelno!iJed ieyi ;o Äuew os uaas

/(peaJ!e an,nott asneoag 1y6no14l pumas e uana inoyl!M anos ueo noit wa!goJd ;o puN ayi s! s!yl

-aouo ueyi aJow paJJn000 eney ieyi asoyi ale ivawiJedep

alnowt(S ayi u! pays!!gnd ale ieyi swalgoJd aJnoiwoidwt(s

:spJOM OMi 10 uOlioel;uOO e s! amoup(g wJai ayl

.suo!ss!wqns aJnowttg paideooe Jo; (suo!inlos J!a14l pue swoldwt(s ;o seseo luaJai;!p x!s)

abed Jed 09$ 64ed Mou s! 1'8S3

sauilapin6 sdil 6ugooysalqnoa1

/31:1(13WJlS

Page 61: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

L9 Aóoloultaa1 6ulatn29S 3luollaal3 886I /egolo0

11319-01 'L94E9 'Pt 'uowlBS Ste x09 '916Z-95L310Z 000'5;$ A1lunoo eweó Blg o4ep! luewd!nbe pue AJoluenu!

'eo!nes aIuatoele Bu!111eH 53111Nf11dOddo SS3NISf19

11319.01 394L-Z5Z3304 :JeuMo

Ile9 'suogezuo4lne puelleM OZ 'A1elqO eBnH 'luewd!nbe pepel8dn'FJoAlenu! Ved e61e1'se4oue9 4'1i1ed euolsMoIIBA wal $11.1 Z 'eueluoW '3'S ul SS3NISf18 S01NO1110313

i2-99.6 '4011,-499 (41L) 'leno e lei noF pue QQQ'0;$ 'ewOOw! esoJó )IOOL$ o; O9$ 411M Auedwoa 9alA1eS euueluy-yDA-Al Peye11(1e1s3 'j11V0 '301Stl3Attl

S3I1INf11aOddO SS3NISf19

1E-99-9 'SZS66 )4y 'e6eJo14a

-uy '9ZOZ5Z x09 'eoueis!ssv Jeindwo9 Bullpueq pue eeeleod ose Ppy'S6 6Z$ isn(Jo; eouelele11ee16 y'dnalool Asee >fa!nb fol s!Beega pue Iepow Aq Pe;s!I selno/swel -gord elepoi-dn 000'1 JOAO-Shcl 111Vd3H H3A/n1

2339-01 'CCU- 10 0402-L99-109 '5551+9 ln 'wee -u0W '0L9 x09 'Od 'Alleuuo9 >f0!H 'cello elgeuoseel Auy Jot

-depy mod e!peeN edooS 62dN-Z :z4W09Z'lolslnpowe0 'egold 1996E-1 .z401 'egold ZLZd1-1 .z4Og hezAleuy wlol oneM 199S-1 'Jo3eJeueO welled OSlN 491N -L :A1011SBa7y

lee! MOA E90A-1 :JezFleuy oePIA Z9Vn-L '1ewJolsue.!I u011

-e!osl elqeue/1 L9Hd-L !Jammu 9 JezAleuy 1H0 lesnelyun

OLHOL 'lelunoo AouenbeJd ZHO 110d -L .Jelew-Z 9L3I-1 'Jeisel 13d 9 Jols!sue11 lello!19 JednS 94d1; 111S lez! -leuusyo 4LSd-1 'luewdlnbe;sel eJoaues MON 31VS Hod

11-99301 'ZZE9-Z99311E 'ZO5L9 sesue>t 'uosut4olnH 'u!eW 'N V3)Z4Z'eolnos ea!nJe$ 041 »go ;sag Jo 0052$ '49-1N Pue E9 -0n 41!M Z9 -VA 1.N3NId1f1O31S31 HO0N3S

34339-01 99098 ZV 'x!ue0yd '30051E x09 1090 Z$ 6oleieo '9L61 aau!s SOIIOSSeaae eouewoyJed-y844

14ll1'sueld'sl1oo9 :SNOI1V3Id10OW/SHIVd3H OIOVH 80

11-99.01 11090 'f'N 'uosu!weuul0 pH euowod Z14'salu043e13 sir 'sealJd pue is!I 10l eAJM

'Joieleue6 e6e;!on Je6uu oslV '1!un ped!M JO SIP! eie!dwoo 'eu!ze6e01 J'8S3 u! pelnieel se 'H31S31 3NOHd3131

11-89-01 94Z88

'VM 'Olepwed 'snllp )fOeJO »ea 5195 '4ES peleJlsnl ll 'ale 'dnylew sued yael'fiuilooyselgnal'eele 1goJd y6lq o3ul e6pelMou>f puedx3 :HlVd3H H31d0001OHd NH3O011

1E-99-9

'6Z966 NV 'e8e1o4auy '9ZOZ6Z xo9 'eouelslssy Jelnd

-woo BuIlPuey pue e6eisod O9Z$ PPV sdllealnJes snid

000' L uipn esegelep elepoi-dn sepn!aul 9g6g$ u1eJBO1d Jol

98'64$ uelo!u4oe; a431oi pie luelleoxe uy'Fdoo peg no

iu!1d 'ele!ep 'eBue4o 'ppy 's!sseyo Jo !epow Fq spuooes ul soma pue swoidwAs usos '(elgliedwo0 W91) WVHO

Otld 3SV8V1V0 Sali 301A1:13S FIDA/A1 tl31f1dN1O0

u41-99-5 '0E594 NI '106ue10 `quel sllaol E5oZ5 's0!uol;aa13 e16e3 's6.6Z$ Ile '46'6L$ oMl Fue '96;;$ 4oe3 'e0uels!sse 0011 '1JeLo OOweleIBJ

asola 'sorna pue swoidwAs os; su!eiuoa 4053

'III II I S3119n1OA SNOI1n1OS 1:1IVd313 HOA-SHA

u11-99-9 6ZZ8L sexa; 'o!uoiuy ues 'peoH 6Jngsxo!Japald

5284 'S3Hn0 H031 01 96'51.$ puas -Aauued 'O'f pue '001!4d 'xoneu6ev 'Jeseno 'a!uoseued 'e!uenlFS

'so you :sJamiaelnuew 1el!w!s-Al!eo!uollaala Bu!mollol 041 Jo; 6u!1s!I 33N31:13331:131SOU3 h3A

u11-98-9 'asegelep uo iou s! Iepow JI oid wes awl 411M papunlal ag !pm AauoW 6ZZ9l sexa! 'o!uo; -uy ues'PeoH 61ngs11olJapeld 9Zg4'S3Hf;0 H03101 Jagwnu !epow pue 6;w Ui!M 96'9$ pues 'seam wow -o1d ;sow Jol sema eldtl!ny.lsellolslH eJnlled tlOMAl

W1-99-9 '6ZZ9L sexa; 'o!uoluy ue$ 'peog 61ngsalopepaJd

9294 'S311n0 H031 '96'21.$ suo!3!Pe 41oq '56'9$'uo!1!Pa puZ JO 1SL 'Alun sd!1 HOn '96'01.5 ßu011

-IPB 4;0q'96'9$ uoll!pe Put Jo 15; 'quo sd!1 AI '56615 sumps 43og '56'01E'uo!llPe lad sd!10OZ'uo!L!pa puna -es JO is L 'Iepow pue 6lw Aq pals!! usdil Nnh HOAIAI

16119-8 '49911 'AN 'MoPeeW lee3 'awn lnu 1se40 4l4'geol 'Pledleod veep -pug Asp ewes 1ueS '00g$ 004w enoqy '0014 O04LN lepun eJePlOd :1313Vd01044d

u;l-LB-L l '05L0-9EZ-9LL 'adoosaulx 1alsayooH 'spnp hips Ile

Anq 'e6JeU0 0N'S'd'n Pedd!4s segnl IIV'el4ellene MOU ale saqnl eJnlald lltngeH NOtl11NIHlANOS

u-99.6 '0669-41,-00e-1 Ilea 10 b1Z9L eexel 'o!uoluV uBS 'eeald 'S 96EZ 01 11110N 0M11

103 sellddne 'slBolulB4a'31N Rued 1SOINOH1O313 VW

11-99-01 10964 'IW 'u!elunolq ua! 'WE x09 'eaue

-Ilddy o g N e11JM JO 59L0-6LL3106 euoqd lsenbeJ uodn lues isll'elese!o4M iueJJn No qf1O9 sexoq leu!6110'OSW

'1SW 'lOW 'HOW 'HOW 'lOW selnPOw V0u 31VS HOd

u41 -L8 -0L '04966 V0'enoJO u0p1e0 'ACM uo!ysed Pk) ZLLII 'Al SIAVO 01 56'L$ pues salno pue swoldwAs 00E :S000 HJn01 Al

31VS aoA

'JoingIJlslp 40 Jelnloelnuew 041 Fq peumo JeBuoi ou pue pesn sse!un slem;oelnuew Fq peanpold FI1ein6e1 slonpoid Aue lo Bu!sgmenpe ol uedo lou ore suwnioa Pel;lssel9

's;soo Bulllew pue 'sonde' 40 &dsaoold 'legwnu iuewuedep Jesoa ol uoniesul Jed 00.9E$ lo oB1sgo !euotllpps us s! WEN) '(spe Pullq) 6u!pmeMJol iol sn ol lues aie setldel 4014M uo spe Jod

00pE$ 0511140 pell!ssela wnwWlW

p1oM In e se slunoa uo!le!neJgge JO IBlllul 4083

uoµeallgnd alnsul ol luewFed Fq pe!uedwo0ae eq lsnw pue'uo!uesu! 4aee:ploM Jed

sa'L$ eje uotlaeS PBIIIsse10 9111 ul see 6u1s11JenpV

paMssel)

7LZ0-S69-fl£ .6£3386 /l1i `o'ro1S Puv1J 'anuQjinlg allag 893y81J 'nt0lopos dalumS aovo Xjuo pasn '8inddnjs mid 017$ `samisa; Jew ,Susm

snjd 'alum aouelsisaJ xis `)lead-al-Jjsad sm1 'Arm slion as xis `a8ne.i suon op 110A9s 'aovepadun ;rid

-14 NIOI `1alaimunw 8ojeue £t* -J.33 IgPum OJ3

Z1,66 -6c9 -6I£ 'ZPLZS VI

'II "any puoaa5 Zlf `uosalav f 7 Pm83IN '00£$ 'sajgso pus sisnusm u sapnjo -uj 'aouo djuo pasn 'ZSS japon uoisjoaid yeg

996l-069-81£ ! auoYd :Yalu 'GiLIL-Z66-8I£ :auoqd 460fIL VI 'vupuvxal y'ZS6 xo& Oä 'umupooD gog setup 8ucddjgs /Csd Rd-Sze 'amp ant sing oz /cjuo quM uoiupuoo lujm m `JCuoS Sq u?nq `2IJA slaq fOSfflA wow quugl

9148-961-8If : I6ZIL V7 `aotuoW A4 '8911 pvoal C s,a:?YA! SIYS `lvaitoW iyavue siaJjo tapjsuoo jpM suojlemgmoo uo strap pus 'mau Cu,e uo 8uiddigs mid Des ' xoq ut `pasnun 'lalnd

'17C009 !1BIV :0£$ `sPI jOAluoa omosioaja pue laujeli-ndmoo remain 'pep que asmoo somail

-ggla S.LNI `Oe$ `NIAJ.A ex1-o2-Xead Z£Z IaPom OM `0£I$ `Pasiln `adugsolP.gso 09SIrOI gieaH

61ZII AN `244t0041 `'IS YISS SP! 'uYosa?laS 141 isjj 103 3SVS a81ej

puas aoud 1st' jjo 9006 `suouso ,stalnlos;nusm uj sawn puslg ptspusis Mau `.sued AJ. pus ojpet `sXooq lxai `sjenusm aointas '.8uiddjgs snjd

0£$ `Pmuutu girM aunjosm 11ds18oamau )¡ojea 'g V

6£ZZ-914-676 :03y634S 'luoulaJd '75 uroyy g LOy 'saluallaalg 13, AZ

1uoudazg 1aw isag JO 8uiddnjs mid 09$ 'awn WM

ojd spaau 'ajosuoo AJ (ba8g) sapas 9L£ e1ueAl4

'SSZZ-ta-pe !6IZ£S Lhi 'Mg/ let "1S 21166 'S 9191 'uoll?Q sluuaQ *SIS 'Mum pus speaj glim NAJA aluoloi.Nl `SL$ `1aPPqq 8Z-JJ. aloouas `.8urddnjs snjd 009$ `uonjpuoo luajjaoxa 'pp sisad `saAi1P ego pup pue lolmom sapnjo -m 'ajqnsdmoo yijgl `talndmoo jeuostad elsploJ

'1906I yd 'uGwgoog 'pvog asnoYBuuaayy

908 9ouPdS 1441V ' IIB sa)jel 1aPPI4 isag8iq-8jq to; dn ate sjsnuem aojnla5 d1o43e3 jeu8uo pue SauiZeBem `SXooq `sojiemagos Opp`j uegi wow

'lIZ6l AN 'oiviivâ IS atopoaYL

L9 ''Salstoy ¡g isjj sped 103 3SVS e PuaS 'ala `sXosqójj `slauuojsueil `moo `sagni 'stoisjsusll `sued Mau 1s4110 1110lAlnQ/uoslam3 `jeijmpV

'Lí9611-9106 :OZ£Z£ 'H 'aloe -npvlvdy 'g anuany yy 'saludpaalg dva-uo111 'ea y puvp lag to; 3SVS Puas óloluanuj sped 4uawd1nb9 4SO4 `.e1ep aojntas ,sialnlae;nusm

1ag10 `9£SZ# 01 spujouogd sums alajdmoo ,CI1saH

6£ZZ-966-6/6 066651A4 ':vou1 at '75 ugly g L06 'saluculaalg Jp A,L 1uoWatd

'01$ `1GPalas J2I 17ZS-9£ DO !SI$ `NIA.LA LLI uots

-paid `OZ$ 'a8P11q 2IJ 9L louadnS `SZ$ `XIddns

oP 9S13g aJoouaS `qloq 10; OS$ `XIddns snap; OS6£-SAd '19vaA5ue11 000£-11 olevialaJ. '09I$ `8if 1591 00000 sjueAlXS !SUS 'islCisue gLLOI

M78g `-SL$ `adoos VBbISQ alOauaS `56$ `191Em daaMs ZSINIS moue '.SI$ `jioo 8ussneBaQ

11ZL-669-61Z 86696 All 'vauauly aunoll '91, re ]lauayy

.>(Í af 'OOI$ `e!lapjos `iolonpuoocmas 'Op `os 10; sasinoo pus tame.q pisogpeaig pm pp= 'pail `-Sb$'NINIQ ljBlp i/i£ OZ£ZNIS Mum qle9H 0£$ `adogs NUM Wow VJ2I !us 101enannCat/ialsal

DID 0£Z5 -II laPom qleaH `OOI$ `1slCpmeqJ

&wA+S Al VbjS-2IM wow VJx `OOj$ 'i131e19ua8

t92jlem palelqjjso-jels,Cia 3/66-XM IaPom NON

86Sf-f9Z-81Z 96LSS N111 '8ulqqag ' 7S uvalYalyy 811.

?llaullN ?¡ xal y .Mau an glog 'OZI$ `ialam OA

06Z japom }lagg '06$ `lalam QA LLI IaPom Mel

ZSI6-Z9S-616 :OSSZI AN uospulm maN -1s sscúJ 6Z 'maw ola8uy 'ZS `taXoaqo 104stsustl OIrd1 japom aloouaS 'OSZ$ `taidepe jesianiun 8Z -VJ gum t9z/Cjeue lalolsal

Page 62: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

8861 iego3op Mo/ouyaal 9 6u¡apuas a¡uodlaal3 89

WONVH £llLBVV :xalal 9£L6 6L 80 :)(Vd

Z39 -66L :auogd e!leilsnV glnoS

£909 all!AMaid laws weg6uAuo0 601_

P17 'Lid 'daÿ 'uoswelll!M 'llaMlseH uoswe!/I!/lq uyor

VI7VH1SnV H1nOS `311IAM3Hj 0OI93dONISW3 :alqe0

fONISW3 OZSZZ£3 :xalal 9999-09£ (£0)

uedef '091- OÁ)lOj `nn!-no!nfu!gs nlnfu!gS `1-3-3-17 "5P19 !we6eS

'oW 'SW3 'eweÄeilH lHnieH

NVdVf `OA)IOl

J S38 694L£8 :xalal 0408E (6980) :xelalal

46L8£ (6980) :a1 -104d

dS4 9X0 PJolxp 'u0161-J!pp00 loads MaN 'asnoH g6!alasoy

uµpea0o{.V se/o4olN aNV10N3`aH0dX0

NdlO 331931N1 991.4-34 :xalal £43L-888 (£1_6) :xed

4994-888 (E1-6) :auo4d Z1_399 S)I 'Ted puepanp

10631 x09 'O'd .1a6euelq sa/eg 'uoswe0 Bee

IHnOSSIW `AlIO SVSNVN xseouvregi9erteNe

eiuew.omi S301330 S31bS JNISI11:I3nad J

pie3 sped Wed ay; asn ¿spnpoad pasipanpe uo uoneuaaoiui aaow jueM

CI- 1-9-8175/£ 15

£L8Z-bZ8/008 01-217-6£6/£1-£ b689-8£5/008 ££ó6-9£8/008 ££176-5£8/008 066b-SZ8/9 lZ 8££17-8ZZ/008 8£££-£178/008 LZLb-£Lb/ó lb 9Z£8-9ZZ/008 £L L0-ZZZ/£ l5 1 Z9L-569/£ LZ

BLZó Z9L/008 009 L-bbZ/Z0Z

0££ó-£óS/008

9LZ L-6LS/ó LL

1 -£Z9 -896/Z09

8196-9179/008 008£-LZZ/008

6£917-ó7£1008 8996-1££/008 17pZ9-9ó9/008 1-ILL-Z6Z/008 00Z£-96ó/6 (-9

L611-ó99/919

0099-£69191-g

au!RoH ias!IiaAPv

OV8 ó5 1-9

91- 9Z Z5 6g 1Z 917

L 6-8

yl!uaZ '03 slonpoad leuo!leonP3 dOA

oQ-ueo-N sleluad luawnulsul Sfl

88-V8 LS 69 89 89

Z 081 S5 59

L1 --U £Z -ZZ

oul Ialual

OUI `x!UOJp1el -OUI `x!uoalmal

loot-!uyoal 'Ow 'yoal i(aads

oul 'aaoouas so!Uailoap3 aw!ad

J3 sd!I!yd oup leuo!lewalul ssaadx3 Slaed

DUI slonpoid as!neued 'ouI `swalsi(s;daouoo-nN

uo!s!n!a So!uo.11ol3-slooyoS IaN 95 `1-5 V4S3N

09 0£ 6Z ali(gealaw 8b lS So!uoiloal3 WDW 01 1Z ( A!Q suo!leo!Ignd)

03 sao!naas el!ysnslew L9 89 Saspdaalu3 e!paen6ei £S 1-9 ouI Spool uasuar

S9 130S1 b £ 03 i(lddns o!pea wegpaod

.oui "000 6u!anloegue!N uyo(` `amn13

1-9 V13 61- LZ i(a){!6!Q

Lb 6b 6 61-

9b S9 GI -

'g £L`g

99 89 £ 1 -

OZ £ó 1- Odl

OS L9

03 6u!anloelnueW i(puea so!uoalwayo SaleS S +

6g 0£ "2 6Z 9 L

dioo lelalsnpul ueiwoa8 dao luawd!nb3

uollonpoad palewolny 'dJOo oOSeUy

sluawnalsul aqo.dwy JagwnN JagwnN Auedwoo aoluas abed aapeaa

augnoH/xapui pd =

aSueyp ssaappe anoi( ssaaoad O S)IaaM 8-9

Mode ase% anssi siy4 apisui pep aSueyp ssa.(ppe ay} 04 1! yDe44e

pue lage! Sui -Hew uoiTdinsqns anoi( pad Isn¡-

nott. ywn sn amel

¿9NMOW

pep óldeH uo (LS) elam0

pied -add 146ad) wn)ad. awg punaewn) JU bZ

6111oud io{

9L31-6LS(4LL) 98936 VO 'ePui-I eg)oA

!eM II!H go!H 3889 IN] VIO£IVf1J V

1:1It1d3H 310W313 ONVH

oae sei

úa;;ea Mary

;veuery, deo

CE

pep XldeH uo (99) 810i10

/so BEEP -M-008-1 , 2/8 spew Jol aaij Ilol Ile

iSS300nS saelueien6 legl elnwjol e-slonp

g3a1-!H ol Aldde legl sew/ 6uqles Jol )IwMewen e uoglpe gl9 Meu pelepon

ol aPInJ Si 430.1.I.

pie0 RldeH uo (9S) e1340

e06VL )l0 'e96o11enly 109.11S uon/J ELES 00 sJdw AaNVa

9996-1Ee-009-1 77V0 331dd 19)13e14318,000/014/MM

lelll JO; luewlsenul ewll-euo V'H4d 092S + 96'6ES AluO HooB &18S 9 9lelooS 411M 'PM

Pelueled eleldwo0 'Plos 000'Zl leAo '331NVHVne )I0V8 A3NOW 'slepow y seHew llV 9114 'lelsellHO moA Jo; moos loldepe Jegloue BulAng iene motile

le)lnw egl uo 1140 A1:13A3 3H01S3H 91S31

96 6CS 301Fid MOl M3N

Page 63: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

-1=1ONMS pep Aidai uo (Z) 813n3

9999-[58-009-[ lleJ ePeueJ et

ME -EN -0081 //03 paads

2ul;oogsalgnop awl ranoastp pue `sBep Og ro; í90S ayl Br.L

passe suolsanb ou 'pump.' avid -woo e rod peg 11 puas `;leg ui awl; adoas luasard rnoB

1na;,usaop 1i 31 sXep og ro; gauaq rnoB uo 193S ail Lr.L,,

: wlela auo a3iew am ism - paau noB s;uawarnseaw ay; nodi anlú 0; pau8isap sl tgOS aqj,

suo1lelnale0 r0 3u11uno0 alna11er0 oN Bllen;rtA puy slorluo0 paraaui8ud uewnH - asa oy Bsed

sllnarl3 Japiniu puy ra!Idilln e s;sa,i, -;say oiled Bauanbard

'2ul;Iul2i 10 aauara3ralul 30 saamoS spuld - leUSiS aq.L 30 lied 30 Bauanbard - awiy e;iaQ/i

saaery uaaA%lag BelaQ 2utpnpui - 2ulpead away Buy rod awry enact

'IeU2IS aq.L 30 lred Buy 30 sllOP Mead-0,1.-Nead - s;iOA Mead -01,-1180d ellaQ

leu8i6 ail. JO lred Buy azBieuy sisal eINQ MAU

2ulya;IMS a2ued rO3uaw;snfpy B;InI; -pins ;mum s;uawamseaw Bauanbar3 ai;ewo;ny

dMD JO 1110 sI Iorl -twa alqelreA 3I nand - s11oA >jead oy-dead al;ewo;ny .

paidno0 0y 111lM uang `aqord 912ulS g9noryy 5110A 0Q 8ueuero;ny

leu$iS aiogM aqy azBieuy s$uipead iealßlQ w,lßui>faerloiny

'2ulipUeH ieueS papued -arg rod (uol;aa;ord SIIOA 000C) slloA 000Z oy Aw S

word amseaw - 93ued iiulmseay11 agy sawty moi

uol;erad0 aard alppld amp sral;lidwy iel;uara33lQ Puy sün3rl0 a120'I'I03 - 3114 PII0S-313011

sllnarl0 lelleQ lsale'I ay,L 1saYL 0y (zHNi OOi oy ame -asn) y;pimpueg zHyll og -,CeidslQ wro;aneM ale -11133V

Biised swro;aneM azBleuy

: noB ro; saop I90S ay;;eyn+s,araH uo;;ng e;o ysnd ato ;e sadoasolilaso relnSar

;o B;Ixaldwoa pue srosmo `snuaw Bulsn;uoa ay; a;euiwga ' i90S ay; ;o Baemaae pue paads ain o; paredwoa uaynt;se; ape;

sadoasolliaso rag;o wor; B;Int;anpord pasearoul;o saslword

031N31 t/d 00196Z'ES JezAieubr [u/OjenBM 193S Bill ¡pM

H3ZAIVNV IItl033AVM

Q YN.. A NnON , 0d 3

-v ON] NOI19

V 031i1SN31N1 300N N 1309/105

tl3`JOIHl S1N3WMnSV3lN V1130 V

lOdNl

913NNVHD

) 3V in 3O

ON11dn03 1ndN1

ndNl

V 13NNVHD

N1039 V

31M1 V

Add V e Ma

Add V V 913

133.0 . O 03tli SO

NOISIA10511OA

3M9d p, NI1M 13MOO1.39

0L W,

NOISIAOIS110A

nY,Yºu+ e 0393 nY nre, 3i

N 01119 Od 1tl311931

1no0V39 11.11010

re, wdey

Q11111111111111 SO]Oi 90133A BfV 9N1193 VN9143 A115N31N1

N "peg AauoW inoA ip paapueieno

'aa& /o//3 Alamosqbr'I(peumno.eb' aioW semi'. OL

'Jawed small CI "zHW COL ol w/oJaAeM Aud azAIeuV Apuapyuóo uéo noA dnyooH awe auo ,xsnr tom

Page 64: Servicing &Technology OCTOBER 1988/$2€¦ · Deluxe carrying case CA -92 $9.95 NEW! SCOPE Frequency Counters 8 -digit LED Compact light- weight Automatic range and Hold function

uogeiodaoD snuoaUa¡g glivaZ ¡o uolsNl4 d ¡£I09 ug>¡uei3 'anuanE7 inoui.ias 000II sauossaJJE7 zg sixed 'aDwas gluua7

;uo sao8 auieu ag¡ aiojaq u¡ sao ,Ugenb atu

¡mou aii.zm ¡uir.i2o.zd aurgaxg s,.zoinqt.zistp siird uptuaZ r rugi aiqrItrne

XIiprai os aire saiiquzassr-gns pur sainpoui Juauiaaeida.i gsa.zl-iüoPel uagm oN a uas

a)irui 1,usaop asp a.iaqmXur ivauiaaridai qptuaZ e .iol a21.1egax2 ue 2ui}ist2i

Xq.reau auo airaoi noX diaq iii.nn am pur prag.zapai Xurduzoa .inoX uo

alt.im 'Van' moi( ui .zaiunoD a2'ueuaxg 2Iap2I utuaZ 2141 Io uoi3L'aoI 21.11 u.zeai oZ

¡sairp-dn Ä.ioTarI uptuaZ saie.iod.ioaui 4uauiaaeIda.z

r irgp aaur.inssr 302 noX uVa uir.z2o.id auruaxg s,.zoingt.zJsip slred qpivaZ 2uprd

-iap.red ut asia a.zaumou puy a.znprInuruiaa Io au.ip

aup le palla ut suopratltpoui aprui-X.ioprI u1tua7 XuV 21V.zod.ioaui 1soui HTM

aolnqt.zistp sT.red utuaZ moi( manaurua -xa ui aniaaa.i noX fiqu.iassr-gns JO alnpouz ivauiaavida.z agi `uri.ioduit Xiirnbg

Irut2t.io aqJ apeui ogm asogp se aigeapaimouni pur paeatpap

A:1se aidoad uptuaZ tltqtia .zol paatn.ias pue pauottpuoaa.z ' pa.znaInuuia.z uaui

aaidai r gim noX Xiddns Iltm ioinqt.ii .re -sip sid qpivaZ 2utrdtat.red

pur s.ioaaias iauurua `s iaunl `sainpoui ati sluauoduioa paea

-isigdos aiouz aup aaelda.i nof uagm urup Iattia a.ioui siup st 2uit3 OU 1V

sd luaui -aarida.i qptuaZ aumua2 qptm Si aatn.ias noX spnpoid utuaZ agi Io iirnb aup utuiii pur aa.i2tpad alp an.iasa.zd o nod .iol sfen sains pur 'saisrI `saisra aui Io aun

¡STEUTUO °1M asel se P'!PU pi.w jqvpopou sz

oIdod 11!UOZ Aq

AflqtpJ Jo; pap!Alas pur pauompuon sued IUW)tjd)J pon ptrnwwoj

%/mue uo Isisut skuje

)saialui Isaa siaiumno ui pur uopendal umo .1o3