monitor williams kristel
TRANSCRIPT
S E R V I C E M A N U A L
1428 - 30K Series Color Monitors
Copyright 1997Produced by M.M
COLOR DATA DISPLAY by KRISTEL, ISO-9001 CERTIFIED
COLOR SPECIFICATIONS
CRT
• From 10” to 28” diagonal measure• P22 phosphor• Polished faceplate standard (dark - tint, light transmission: 57%, none glare, deflection angle 90 degree, dot pitch: 0.28 - 0.82. Optional finer pitches available.
INPUT SIGNALS
• Video: Red, Green, Blue separate input Impedance: 75 ohm, amplitude: 0.7Vp-p• Horizontal scan: 31.5 KHz / 35.5 KHz, TTL positive or negative• Vertical signal: 50-70Hz
VIDEO CHARACTERISTICS
• Video bandwidth: 45MHz• Power supply: universal (90-250vAC)• Resolution: VGA /sVGA• Linear distortion: 10% max.• Geometric distortion: 3,0mm max. top/bottom, 4.0mm max. left/right
ENVIRONMENTAL CONDITIONS
• Operating temp. 0-55 degree C. Complies with UL, CSA and TUVradiation performancestandard.
pg.1
1428 - 30K series
MECHANICAL
• The 14” monitor is also available in universal mount brackets. The monitor can bemounted in the user’s cabinet horizontally or vertically.
• All the models are available also as a kit - without a frame. Custom frames can be fur-nished
also available in the chassis form adaptable to individual customer requirements.
USER ADJ. CONTROLS AND ADJUSTMENTS
• HORIZONTAL size, VERTICAL size• CONTRAST BRIGHTNESS• VERTICAL center HORIZONTAL phase
• SUB-BRIGHTNESS RASTER center• SUB-SIZE VERTICAL lin.• SUB.HORIZ.size X-RAY prot.• HORIZONTAL hold B+ adj.• PINCUSHION GAIN
• R,G,B bias R,B Gain
WARNING: FOR CONTINUED SAFETY REPLACE SAFETY CRITICAL COMPO-NENTS ONLY WITH MANUFACTURER RECOMMENDED PARTSAVERTISSEMENT: POUR MAINTENIR LE DEGRE DE SECURITE DEL’APPAREIL NE REMPLACER LES COMPOSANTS DONT LE FONCTIONNEMENTEST CRITIQUE POUR LA SECURITE QUE PAR DES PIECES RECOMMANDEESPAR LE FABRICANT.
pg.2
1428-30k series
PRODUCT SAFETY NOTICE
pg.3
1428-30k series
SAFETY PRECAUTION
NOTICE: Comply with all cautions and safety related notes located on or inside thechassis or picture tube. The following precautions should be observed:
1.The design of this product contains special hardware, many circuits and componentsespecially for safety purposes.
2. For continous protection, no changes should be made to the original design unless au-thorized in writing by manufacturer.
3.Any design alterations or additions will void the manufacturer’s warranty and willfurther relieve the manufacturer of responsability for personal injury or property damageresulting there from.
4. Many electrical and mechanical parts in display sets have special safety relatedcharacteristics. These characteristics are often not evident from visual inspection nor canthe protection afforded by them necessarily be obtained by using replacement compo-nents rated for higher voltage, wattage, current etc.
5. If severe arcing occurs, remove AC power immediately and determine the cause byvisual inspection (incorect installation, cracked or melted HV harness, poor soldering,broken wires etc.)
6. No modification of any circuit should be attemted. Service work should only per-formed after you are throughly familiar with all of the safety check.
7.Do not place the monitor on unstable surface. If the product should fall, it may be-come seriously damaged and, more importantly, may cause injuries to the user.
8.Follow all wanings and instructions marked on the product.
IMPORTANT
Do not check high voltage by drawing an arc. Use a high voltage meter or a highvoltage probe with a digital voltage meter. When service is required, observe the original lead dress. Extra precaution should begiven to assure correct lead dress in high voltage circuit area. Where a short circuit hasoccurred, those components that indicate evidence of overheating should be replaced.Always use original components.NOTE: Make sure to turn power swich off before making the connection to the AnodeButton.
WARNING
X-RADIATION. Operation of this color monitor under normal conditions will not exceed the0.5 mR/h iso-exposer-rate. Be sure that the anode voltage and other tube voltages areadjusted to the recommended values.
SHOCK HAZARD. To remove any residual charge, short the anode contact button,located in the funnel of the tube, to the external conductive coating before handling the tube.
TUBE HANDLING. Tube assembly should never be handled by the tube neck, deflectionyoke or other neck components. If suspending the tube assembly from the mounting lugs, en-sure that a minimum of two are used.Under no circumstances suspend the tube assembly from one lug.To protect the screen when placing the tube face-down, ensure that the tube face rests on acushion kept free from abrasive substances / or foreign parts.
TUBE REPLACEMENT. This monitor tube incorporates integral X-radiation and implosionprotection and must be replaced with the same type number or recommended replacementto assure continued safety.
pg.4
1428-30k series
MAIN PCB, 1428-30K
pg.5
1428-30k series
Video power connector B503
Sync.connector
Hphase & Vsize - B601
Hsize, B302 Vcenter, B303
Yoke, B602A
Brightness, B902
Blk,GND,ABL,G1- B901
AC input - B501
VR901-subBRITE
VR501, B+ adj.
VR301, Pin
VR304, Gain
Degaussing coil con.
T602, FBT
-Tunning cap.C611-Damping diode, D602-Horiz.drive trafo, T601-Horiz.Output, Q602-Driver Resistor, R615
VR602, X-Ray
VR308, sub-H-size
VR604, Raster cent.
VR601, H-Hold
VR310, V-Lin.
LED,power indic.
⇒ POWER SUPPLY
Bridge Rectifier
Q501, MOSFET
L501, FCC choke
SYNC.SECTION
VERT. SEC.
L603, Linearity coil
∗ VR CONTROL INFORMATION∗ CONNECTORS INFORMATION∗ PRINCIPAL SECTIONS AREA KRISTEL 100-100-1428-30K PCB rev.A with blanking circuit incorporated.
FIG. 1A
MAIN PCB, 1428-30K
pg.5A
1428-30k series
Video power connector B503
Sync.connector
Hphase & Vsize - B601
Hsize, B302 Vcenter, B303
Yoke, B602A
Brightness, B902
Blk,GND,ABL,G1- B901
AC input - B501
VR901-subBRITE
VR501, B+ adj.
VR301, Pin
VR304, Gain
Degaussing coil con.
T602, FBT
-Tunning cap.C611-Damping diode, D602-Horiz.drive trafo, T601-Horiz.Output, Q602-Driver Resistor, R615
VR602, X-Ray
VR308, sub-H-size
VR604, Raster cent.
VR601, H-Hold
VR310, V-Lin.
LED,power indic.
⇒ POWER SUPPLY
Bridge Rectifier
Q501, MOSFET
L501, FCC choke
SYNC.SECTION
VERT. SEC.
L603, Linearity coil
KRISTEL 100-100-1428-30K PCB rev.A
FIG. 1A
FIG. 2A
NOTE: for AutoBias optional configuration,B902 is NOT used, and B901 is like in fig.2A
B902
AUTOBIAS FORMAT
from left to right:-white = VR-blue = HR-green = GP-yellow = G1DRV-orange = G1-not used-black = GND4
VIDEO PCB CONNECTION INFORMATION & PRINCIPAL SECTIONS AREA
CRT BOARD - ver.1.1 200-200-1564
pg.6
1428-30k series
R, G, B - bias adj.
R251
HEATER Resistor
R,B - Drive/Gain adj.
video conn.
LM1203PREAMPLIFIERCIRCUIT
R208
contrast conn
DAG spring conn.
R236R233R286Load Resistors
G2 connector
GND clamp
GND,V & H sync.conn. to B901 main PCB
G1, ABL and GNDconnect. to B901main PCB
GND2, to B503, main PCB
12vDC from B503, main PCB
B+, from B503main PCB
7vDC (heater)from B503, main PCB
BLK
Blanking, fromB902, main PCB
CRT socket
pg.6.a
1428-30k series /AB
VIDEO PCB - ABNO2CX /autobias/ INFORMATION& PRINCIPAL SECTIONS AREA
R236, R230 & R233 / LOAD RESISTORs IC202 , BIAS CONTROLPROCESSOR
IC203, BEAMCURRENTBUFFER
VIDEO PREAMPLI-FIER/ 3 channel
IC201
blue wire: HR
red wire: ABL
CO
NT
RA
STC
ON
NE
CT
OR
GND5 /ground
yellow wire: Vsync.
blue wire: Hsync
P201
/LO
GIC
CO
NN
EC
TO
R
CRT socket / largeor small neck
NOTE:small neck /ABN02CXlarge neck / ABN02C
red wire: HTR1blue wire: +88vDCblack wire: GND2gray wire: GND3GND1: dag spring connectG2 pin connectorwhite wire: =12vDC
CRT BOARD -ver.ABN02CX
green wire: GP
white wire: VR
yellow wire:G1DRV
1428-30k series, AUTO BIAS
AUTOMATIC BIASING VIDEO SYSTEM
PURPOSEThe purpose of the system is to establish and maintain a constant and correct black level (cutoff level) onthe CRT screen, without the need for manually adjusting the biasing of the individual video amplifiers.This has the advantage of greatly simplifying the initial setup, plus maintaining the biasing conditionsthroughout the life of the CRT as it ages. It also eliminates the need for individual red, green, and bluebias potentiometers, and even a brightness control. The Automatic Biasing System is integrated into thevideo amplifier system.
OVERVIEW OF OPERATIONThe system works by sending a DC correction to each of the video amplifiers, in response to cathodecurrent changes resulting from a fixed step in G1 voltage. During a setup and sampling period after ver-tical retrace, a fixed step is applied to the G1 grid, while the three cathodes are held steady. When biasconditions are correct, this voltage step results in a small step in cathode current for each gun. This stepproduces a faint horizontal line at the top of the screen, visible if the vertical size is set low enough.
OPERATION DESCRIPTIONVideo System: The basic video system consists of a three-channel video processor IC201, and threevideo output stages (Q205, Q202, Q206, and Q207 comprise the Red Video Output stage). The Auto-matic Biasing System adds a Bias Control Processor, IC202, plus Beam Current Buffers IC203B-D, a G1control circuit IC203A, and clamping circuits. IC201 contains three video preamplifiers with DC-controlled gain and DC clamping. IC202 contains timing circuits, sample-and-hold circuits, and buffers.
The three video channels are identical, so only the Red channel will be described in detail. The Red videoinput signal is terminated by R201, and is delivered to the input of IC201 at pin 4 through R274 and ACcoupling capacitor C201. Pin 11 supplies a DC bias level for the video input signal through R204.
IC201 increases the 0.7V p-p nominal video input level to about 2.7V p-p at pin 25, which then drivesthe base of Q202. The exact amount of gain is determined by the DC level on pin 12, the Contrast con-trol input. This DC level controls the gain of all three video channels simultaneously.
Q202 and Q205 operate as a cascode video output amplifier, with a gain of about 15. The video swingat Q205's collector is about 40V p-p. Q206 and Q207 operate as a buffer, driving the red CRT cathodethrough R242.
Q201 is driven by a horizontal retrace signal, and supplies a negative-going clamping pulse to IC201 pin14. This provides DC restoration for the video signal by forcing the output of the video processor,IC201 pin 25, to the same DC voltage as on pin 24, during horizontal retrace time.
1428-30k series, AUTO BIAS
pg.7
1428-30k series
TOP OVERLAY KRISTEL / 100-100-1428-30K PCB
PURPLE: Power Supply SectionRED: Sync.Processing SectionBLUE: Vertical Section
GREEN: Horizontal Output SectionYELLOW: HV Section (FBT)CORAL: Electronic Width Control
SCHEMATIC DIAGRAM CRT BOARD model: 200-200—1564USED IN CONJUNCTION WITH 1428-30k pcb
NOTEAll marked area with red square is subject to be changed accordingly with the model of theCRT and the characteristics of the deflection yoke existing on the CRT.Actual schematics is not refered as autobias video board.
pg.8
1428-30k series
TO B503, main PCB
B211 to B901 main PCB
To B801 main PCB
G1 ABL GND
REMOTE CONTROL BLOCK / SIX CONTROLS or FIVE CONTROLS (AB)
pg.9
1428-30k series
BLOCK DIAGRAM 100-100-1428-30K
OPTIONAL forAUTOBIAS
VE
RT
ICA
LY
OK
E
HORIZONTALYOKE110 - 240 vAC
CHARACTERISTICS of potentiometers:
NOT USED in AB configuration
Hsize=VR307=5Kohm; Vsize=VR309=10Kohm; Contrast=VR201=10KohmVcent=VR302=5Kohm; Hphase=VR604; Brightness=VR901=100kohm
POWER SUPPLY - CIRCUIT DESCRIPTION / guide for switching powersupply and components.
1.POWER CIRCUIT
pg.10
1428-30k series
FUNCTIONAL BLOCK DIAGRAMSwitching Power Supply
The power circuit includes the lines filter, input rectifiercircuit, start up, current-mode control and OVP. Pleaserefer to the circuit diagram.
to Q803 / coll.
to R815,R604,L601...
to R615,IC301
to pin2 FBT...
to R339,R331...
1.1 LINE FILTER CIRCUIT
The line filter circuit is comprised of C501, C502 and L501. This line filter tends to reduce the noise of con-ducted EMI from monitor into the power line.
1.2 INPUT RECTIFIER CIRCUIT
The input rectifier circuit is comprised of BD501 and C505. BD501 and C505 is a full - wave mode rectifier.L501 is used to reduce the surge current while the power supply is turned on.
1.3 START UP CIRCUIT
The resistor R502 provides the start-up current of IC501. The turn-on and turn-off thresholds of under volt-age lockout circuit in IC501 are set up internally at 16vDC respectively. To start up, C506 must be charged to16vDC with a current of 0.3mA - 0.5mA which depends on the IC501 start-up current characteristics andR502 resistor value.
1.4 CURRENT MODE CONTROL OPERATION
When Vcc of IC501 pin 7 is charged to more than 16V, there is a square wave on the output pin 6 which canbe adjusted to peak +/- Amp. for driving the gate of Q501. The current-mode sensing resistor R513 senses theprimary current wave in order to control the current-mode PWM and limit the total output power. Pin 2 andpin 1 is an error AMP section. IC501 detects the output voltage while the line voltage and load currentchange.
1.5 OVP CIRCUIT
ZD502 is the OVP circuit (over voltage protection). If an over voltage condition exists the ZD502 will shutdown IC501.
Per above related considerations a switching power supply is a relatively complex circuit (see functionalblock diagram). It is apparent here that the heart of the supply is really the high frequency inverter. It is herethat the work of chopping the rectified line at the high frequency (20-200kHz) is done. Also the line voltage istransformed down to the correct output level. The 60 Hz input line is rectified and filtered by one block andafter the inverter steps this voltage down, the output is again rectified and filtered by another.The task of regu-lating the output voltage is left to the control circuit which closes the loop from the output to the inverter.
pg.11
1428-30k series
2. SYNCHRONOUS PROCESSING CIRCUIT
IC 801 circuit (WT8041), a sychronous signal processor of multi-sync, is capapble of many functions such asthe horizontal and vertical frequency discrimination, display mode selection and synchronous pulse polaritydetection. Pin 15 and pin 16 work as a clock generating circuit. Output pin 4 is active high while pin 5 is ac-tive low, fixed polarity and have the same pulse width as the original horizontal and vertical sync. signal. Pin7 works as a frequency discrimination which is active low. Pin 9 and 14 work as mode selector which controlsoutput. These output pins are to control Vsize, Hphase and Hosc of every display mode.
3 HORIZONTAL / VERTICAL PROCESSOR
The IC 601 is a combination horizontal and vertical processor.The vertical SYNC is applied to pin 14 of IC601. Oscillation is determined by C306, R303 and C305. Thesaw-tooth pulse generator built inside the IC can generate saw-tooth signal through a buffer stage to pin 15.
1428-30k series
pg. 12
to L502 / power supply
to R907 / FBT
to V
R30
1to R
334
to R
613 to FBT
6. H-SIZE CONTROL and PIN COMPENSATION
The control of picture width and side pincushion compensation is achieved through changing the source volt-age of the horizontal deflection circuit. There’s need for some components to build a diode modulator. Thiscircuit consist of C620, L602, C611, D602, D610 and H-DY.The parabolic wave is fed to the base of Q303 via double integrated circuit wich can generate a side pincush-ion compensation wave. The H-width control voltage and parabolic wave are amplified by Q304 and Q306,then they are fed to the diode modulator for controlling the source voltage of the horizontal deflection circuit.
pg.14
1428-30k series
ELECTRONIC WIDTH CONTROL / schematic.
to Horizontal YOKE
to L608
to L503
to C
522
(+)
to L
503
to Q
805,
Q80
6...
to IC601, D801..
7. VIDEO AMPLIFIER CIRCUIT
The video circuit includes: video processing IC201 and video amplifier circuit (Q211, Q205 and Q208). Theanalog video processor IC201 includes gain control and DC restoration. Video signals RGB are input throughthe coupling capacitorsC206, C205, C204 and than sent to IC201.A cascode circuit is used to amplify each R,G,B channel. The value for channel gain is calculated by collectorand emitter resistances. The L205, L204 and L205 are series peaking inductors.The output amplifier circuit stage, consisting of Q202, Q205, Q206 and Q205 is used to amplify video signalto 40Vp-p and is represent one of the R,G, B channels.SG202, SG201 and SG203 respectively R252 and R253 are arc protection components which protect electricalcomponents when CRT arc condition occurs.
pg.15
1428-30k series
(2) (3)
8. CRT TECHNICAL DATA / CHUNGHWA 14” /
(5)
pg.16
1428-30k series
ELECTRICAL DATA AND RATINGS / CHUNGHWA 14” /
pg.17
1428-30k series
GENERAL ADJUSTMENT
FACTORY SPECIFICATION
Unless being specified, “Factory spec.” means the final adjustment made by the operator inthe factory. This adjustment is intended to be close to the standard display characteristics.
TEST SIGNAL
R,G,B video signals are identical and specified signals for standard VGA mode of 480 lines.
WARM-UP TIME
Minimum 15 minutes is required for warming up the monitor. Direction CRT faces East.Ambient lighting environment: 400 to 600 lux.
AMBIENT TEMPERATURE
25°C (77° F)
TESTING MODE
640x480 / 800x600 upon request;
TOOLS and TEST EQUIPMENT Required
• miniature flat screw driver• plastic Hex wrench• ass’t clips and 1µF/50v capacitor• external degaussing coil• color analyzer / recommended: MINOLTA CA-100 /• IBM / PC compatible• digital multimeter pg.18
1428-30k series
• CRT diagnostic software included in Kristel 3.5” diskette• hipot tester• video generator• TEST Bezel - fixture model / depending on customer availability
PROCEDURE
⇒ Apply AC recommended power and video signal from customer supplied generator or use IBM compatible computer⇒ Adjust screen control (FBT) to be able to view screen & focus control to best possible
setting.⇒ Convergence: some fine adjustment with pre-mated yokes to CRT can be achieved with
magnetic tabs (see instructions and theoretical considerations - how to provide a best convergence.⇒ Adjust B+ from VR501 / per CRT requirement:• connect the positive lead of multimeter to D508, negative to chassis• adjust VR 501 to obtain the voltage resulted from the spec. of the CRT⇒ Select crosshatch pattern from video source / 31.5KHz (640x480)⇒ Vertical linearity adjustment: adjust VR310 to allow no more than 3.0mm max. misadjustment.⇒ Vertical size is performed from VR309 remote control potentiometer⇒ Width size adj. is performed from VR307 and VR501. maximum attention for heater voltage / maximum permissible value must be between 5.9 - 6.5vDC /⇒ Horizontal raster centering is performed from VR604⇒ Horizontal Phase adjustment:• input 31.5kHz timing with crosshatch pattern• adjust VR604 to center the picture per specs.⇒ Pincushion adjustment: VR304 and VR301• input 31.5 kHz (640x480) timing with crosshatch pattern• adjust VR304 and 301 to obtain the best pincushion pattern⇒ Focus adjustment:• display any character all over the screen, set contrast in max. and brightness in cut off po-
sition. Adjust focus for best resolution possible.⇒ Horizontal Oscillating Frequency, connect a capacitor 10µF/50volt, to Hsync from videoPCB to GND, than adjust VR601 till the sync slash blanking bar is vertically stable possibleafter that remove the jumper pg.19
1428-30k series
⇒ Background white balance adjustment:• set all bias VR’s (204, 205 and 206) to max. and let the raster to be invisible• display black pattern (all video signals are disable) and adjust SCREEN VR,• as soon as the raster appears, check out which color (red, green or blue) comes out first• adjust bias VR of the other 2 colors to get gray raster• adjust SCREEN (from FBT) to let the gray raster no larger than 1FT - L⇒ White balance adjustment:• use color analyzer photometer, display center block patern, set the brightness to mini-
mum than adjust the contrast VR to let brightness to be 35 FL and RGB balanced per Minolta reading.⇒ X-RAY protection seeting: VR602• input 31.5 kHz (640x489) with crosshatch pattern• connect the positive lead of multimeter to ZD601 (+)• adjust VR 604 to obtain a 3.5 - 5.4vDC reading⇒ Purity adjustment:• is associated with convergence alignment / see procedure - required previous experience/• display magenta color pattern• adjust the purity magnet so that the picture is in magenta color. By turning two overlap-
ping pawls in opposite directions, move them until they are at the same angle, 9 o’clock and 3 o’clock respectively. / as shown in fig.1 /• for static convergence adj. / as shown in fig.2 and fig.3 / follow the next steps:a/ display magenta crosshatch patternb/ open the two pawls of the 4-pole magnets to allow the red and blue vertical line to unitec/ open and rotate the two pawls at a constant angle so that the red and blue horizontal linescan united/ if the vertical line deviates, open the two pawls at the deviation position and make a minoradjustment by changing its angle.e/ display cross hatch patternf/ make the red and blue vertical lines at the center unite whith the green by opening the two6-pole pawls.g/ rotate the two pawls at constant angle so that red and blue horizontal libes can unite withthe green.f/ if the vertical lines deviate, change the angle of pawls from the deviation pos.
pg.20
1428-30k series
. pg.21
1428-30k series
CONVERGENCE and PURITY
. pg.22
1428-30k series
MORE INFORMATION regarding convergence and purity:
R,G, B bias R,B gain
P 201
pg.23
1428-30k series
TROUBLE SHOOTING GUIDE
. pg.24
1428-30k series
. pg.25
1428-30k series
pg.26
1428-30k series
pg.27
1428-30k series
BILL OF MATERIAL
pg.28
1428-30k series
pg.29
1428-30k series
pg.30
1428-30k series
pg.31
1428-30k series
pg.32
1428-30k series
pg.33
1428-30k series
pg.34
1428-30k series
pg.35
1428-30k series
pg.36
1428-30k series
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
ICLM3080
302
NOTES1. RESISTOR VALUES ARE IN O(OHM) K=1,000 M=1,000,000
2. ALL RESISTOR ARE 1/8WATT. EXCEPT WHERE OTHERWISE INDICATED
3. CAPACITOR VALUES ARE IN uf UNLESS OTHERWISE INDICATED P=pf
4. ALL CAPACITOR ARE 50 VOLTS EXCEPT WHERE OTHERWISE INDICATED
1
3
5
7 G1
ABL
GND
43
2
7
6
5
T501
B901
7
6
3,
4
2
1
B302
*
*
B502
B+ ADJ
5. J88:15" USE J4:14" USE.
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16H-IN
V-IN
GND
H-OUT
V-OUT
CLAMP
SELECT
DELAY VDD
350
400
480
600
768
OSC
OSC
8
DOUBLE FOCUS CIRCUIT (17" USE)
IC801
CM1438
T602
B501
J4
15
14
16
12
9
10
11
13
BLINKING
B801
H-SYNC
FROM FBT
G1.DRV
J88
V-RETR IN
GP-OUT
H-RETR IN
1 23 11 13 12 18
H-IN V-IN V-LIN V-SIZE H-PHASE VS H-OUT
H-GND
VREF
V-RAMP
LIN-OUTV-HOLDCV-GNDCPHASECOMPR 1
PHASECOMP2
C
H-FLYBACKINPUT TDA9102B
TDA8172
4
OUTPUT
Vs OUTPUTSTAGESUPPLY
FLYBACK
SCREEN
FOCUS
GND VCC
OUT
48
S
D
IP3842N
HV
IC601IC301
SENSE
100-100-1428 1.0
K R I S T E L Corporation
D
0 0Thursday, March 04, 1999
Size Document Number Rev
Date: Sheet of
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94S7RPFE
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94S7RX9H
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95#Y9IA3
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978GNTEP
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978H1C4E
I00243
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I00245
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14 17 16 10 20 7
5 2 36
7 Vref
8
91 INVERTING
GND
5 7
2 6 G
COMP1
R/CVREF
FB
3
4
88V12V
GND
7V
6
19
15
INPUT
5
12V
12V
12V
5V
R6201.5K
D3011N4002
+C312220uF25V
+ C3082200U25V105
R3111.5K
R3150.681W
R3106.8K
R3131.5R1/2W
C3140.22uF
+ C31147uF25V
+
C310
47U50V
R30812K
V-YOKE
C3210.1uF
R9142K
R9132K
C9050.1u100V
+
C90410u 50V
R9121.5K1/2W
Q903
2SC1213C
D904FF1004
Q3012SA733
R3181K
R3191K
R3173.9K
R316100R1W
Q3022SC1213C
R91110K
+ C9031u50V
R906150K
Q9022SA733
VR302
5KBV-CENT
+ C90210U200V105
C3060.33U
MEF
R907270KR503
150K
R50627K
R51247R
R50910K
R5130.22R
2W
R5101K
R50422K
R50722R
+ C3071000U16V
R50830K
R5163303W
R517470
C5020.1uFAC250V
C503
R51527K3W
C509101
C507104 C510
222J
C513681
R502120K
3WC504222AC250VX2
C5010.1uFAC250V
C5161031KV
D508HER108
D509HER204
D512HER204
+C5261000U25V
+
C505330U400V
+
C506100U25V
+
C512
47uF50V
+ C520100U160V105
+ C5231000U25V105
+ C522470U25V105
+C524470U25V
+ C52122U160V105
D502BA159
Q503
B988
D505HER103
D504FR103
D513MR856
D507MR856
D514MR856
R518102W
R3602.22W
R9236.8K
R9212.2K
C313100U25V
R361470
R8041M
R9102.2K
Q906C945
C540100U25V
L603H-LIN
R6341K
+ C6154.7uF50V
L50125MH
- +
BD501KBL06G
4A600V
L50318uH
F501T3A 220V
T3.15 110V
Q501FS7KM-16
AC SWAC100V-240V
ZD50218V
C5080.22UMEF
DEGAUSSINGCOIL
R5214.7K
C517472
AC400V
R5015R
NTCR
L60418UH
R52210K 2W
R6331 3W
PT50114
PTCR
D506MR856
C814100U25V
R524180
C5110.1U
R5451.2K 2W
C530103 500V
LEDGREEN
C3351U25V
VR309B10K
V-SIZE
C3380.1UPEI
R6032201/2W
R604150K
VR601
10KH-HOLD
R6063.3K
D9074148
D9094148
R9224.7K
R9208.2K
+ C527100U160V105
D9084148
C3150.1UPEI
Q306TIP122
R347470
VR3075K
H-SIZE
C518220P 1KV
VR308B10K
SUB-H SIZE
R505510K
R3441.2K
R511
56
D5204148
VR301B10K
S CORRECTION
R3632201/2W
R336220K
R349220K1/2W
R3432.7K
C30210U
L602180UH
C6061U25V
R34515K
1/2W
R6021.5K
C3342.2U100VMEF
D511HER204
R92012K
Q901
BF423
R90310K
C6660.1U
VR310B5K
V-LIN
R33933K
R331150K
R332150K
R33322K
R33422K
C33110U25V
S601
C945
C9011U
C3301U
E.C
VR3041KPIN
R3373.3K
Q303C945
R3404.7K
C33310U25V
Q304A733P
R3383.3KR335
43K
Q308
A733P
R3414.7K
C33210U25V
R3424.7K
VR902
B100KBRIGHT
C9060.1U100VMEF
R9091K
Q904BF422
R9082.2K
R905470
R90110
VR901B2KSUB-BRIGHT
R9041.5K
D503BA159
C514102
1KV
R51410K3W
H-YOKE
C362103PEI
R6183301/2W
T601HDT
R61747R1/2W
C6134711KV
Q602C5149
Q601C1213C
C621103
D602RP3F
R612330
C6115122KVR613
220R
R614390R
+ C609100U25V
R6152402W
ZD6016.2V
R6198.2K
+ C6164.7U50V
VR6025KBX-RAY
D605FF1003
L50218UH
XR8014.7K
D8041N4148
Q805
A733Q806
A733Q807
A733
C3162200U
25V105
C80910U25V
C8080.1U
C8060.1U
R82210K
C8140.1U
+
C32047uF 25V
C620103630V
R6355.1K
D610RG4A
L801560UH
C804100U25V
R8164.7K
R8181K
Q804C945
R81710K
C8010.1U
R8013.3K
R8021.5K
R8031.5K
R815100
1W
VR501
5K
C80256P
C80356P
X8013.58MHZ
ZD801HZ5.1V
D801IN4148
D802
IN4148
D803
IN4148
R8126.8K
J602.2K
J581.8K
R809
220K
R808
20K
R8073.9K
R806750
R8101K
R60756K
Q801C945
C805100U25V
R81910K
Q803BF422
R82010K
Q802C945
R6083.3K
+C6032.2U50V
R82310K
R8111K
C601102
C605223
C3041uFNP
R302150K
R3055.6K
R60933K
L601560UH
C3050.22uF
PEI
R30336K1/%
C6300.82U250V
R30447K
C5251000U25V105
R32715K
R30133K
C602272
C303104
R61115K
VR604
10KBH-PHASE
R3076.8K
C608220PNPO
R30947K
R31447K
R527560K1/2W
TP4
1428-30k series, AUTO BIAS
SCH
EM
AT
IC D
IAG
RA
M14
28-3
0K A
UT
O B
IAS
1428-30k series
555.South KIRK Road, ST.CHARLES, IL 60174phone: 630 / 443-1290 fax: 630 / 443- 1390
CREATION, PERFECTION, TEAMWORK