CIRCUITRACE@PHOTOFACT® with ~~------~--------------- I

TRADE NAME : Austin Healy and MG Model HAC700(4TMB), (1964) Austin Healy 3000 Mark ill,Austin Healy Sprite & MGB, MG Midget,MG-1100.

SUPPLIER: For Current Address, See Master Index.

TYPE SET: 6 Transistor AM Receiver

POWER SUPPLY: 12 Volt Storage Battery

RATING: ,,920 Amp. @ 12.6 Volts DC

TUNING RANGE: BROADCAST 54Q-1615KC

ALIGNMENT INSTRUCTIONS

1.

2.

3.

Check for specified source voltage,Use only enough generator output to provide a usable indication.Suggested Alignment Tools:A1 thru A10 GENERAL CEMENT: 5009, 8987, 8728A WALSCO~ 2531-X, 2536

SIGNAL SIGNAL RADIOGENERATOR GENERATOR DIAL INDICATOR ADJUST REMARKSCOUPLING FREQUENCY SETTING

High side thru .lmfd to 262KC High Freq. Output Meter AI, A2, Adjust for maximum.point 0> ,low side to (400rv Mod.) End Stop. across voice coil. A3, A4ground.

Thru dummy (Fig. 1) l6l5KC " " A5, A6, "to antenna receptacle. A7

Step 3 is not necessary unless tuner has been tampered with or associated components have been replaced. IF necessary, backtuning cores (A8, A9, AIO) out of coils but not out of forms. Repeat step 2.

High side thru 82pf to lOOOKC Tune to Output Meter A8, A9, Adjust for maximum. Repeat steps 2antenna receptacle, low Signal. across voice coil. AIO & 3 until no further improvement isside to ground. noted.

With radio installed in car and antenna fully extended, tune in a weak station near 1400KC and adjust A7 for maximum output:

3.

to antenna receptacle.--~-] - ---- u_ • - T~-------

I I A7 IStep 3 is not necessary unless tuner has been tampered with or associated components have been replaced. IF necessary, backtuning cores (A8, A9, AIO) out of coils but not out of forms. Repeat step 2.

High side thru 82pf to lOOOKC Tune to Output Meter A8, A9, Adjust for maximum. Repeat steps 2antenna receptacle, low Signal. across voice coil. AIO & 3 until no further improvement isside to ground. noted.

With radio installed in car and antenna fully extended, tune in a weak station near 1400KC and adjust A 7 for maximum output,

PUSH-BUTTON ADJUSTMENT

1. Pull button out.2. Tune manually to desired station.3. Press button in firmly.4. Repeat for remaining buttons.

r---ro-------,I I

TO J pf t______ TO

SIGNAL 0--- I~ =::3 ANTENNAGENERATOR:J' ,..----~ RECEPTACLE

I 30 II I

L I~~JFIG. 1

Thru dummy (Fig. 1)to antenna receptacle.

~....

Ese COLOR DOT

X1,X2 & X3TERMINALGU IDE

Jrf3l,~

Jf13l,~L6 TERM INAl GU IDE

L7TERMINAL GUIDE

*@)

@ 68pf N750

1000

OUTPUT 2.2meg

~2N176 QDC"----1.5V---'--- ~~

X6TERMINAL GU IDE

4.9V

@+ .Ol

(§ 180K

L7V

@t 400ffifd

2ND AF AMPe @ M54 @

C 1O. 8V

16mfd

AVC LIMITER

@CATH

1N139

@> 1000Q

4.9V

(liDX4&X5TERM INAl GU IDE

(liDX4&X5

4.9V

@ 5600Q

*@ 82K

4.9V

@ 47K

@ 47K

1@ r- .47lmfd

@A ~---tTONE

20K

@

4.9VSOURCE

@

6800Q

lmfd

@ATONE

20K

DENOTESCHASS IS

DENOTESCHASS IS

1

@

4.7V E

RFAMP@2SA 72

@

L.- ....... '-_~I_-..........---......4.9V

6 7 8 9 10M2TERMINAL GUIDE

@) 22000

@o

@. 0068

ANTENNARECEPTACLE

4.9V

.2Q r- ----------- .....

!@ §J !i~!

L.....;r--....-u--.........----f.-I@] !1O! 6Q 9:

@r 5_6~;f+---------J

e Seepartslist for alternate value or application.1. Voltage measurements taken withvacuum tubevoltmeter.2. All controls set fornormal operation, nosignal applied.3. Measu redvaluesarefrom socket pinor terminal to common ground.4. All terminals viewed frombottom unlessotherwise designated.5. Numbers assigned toterminals may notbefound onthe unit.6. Supply voltage maintained at ratedvalueforvoltage readings.7. Resistance measurements notgivenbecause ofthe wide variation

in internal resistance oftransistor.

e Seepartslist for alternate value or application.1. Voltage measurements taken withvacuum tubevoltmeter.2. All controls set for normal operation, nosignalapplied.3. Measu rerl valuas <lrp.from c;nrlcp.tnin nr t&>rminlll t~mmnn nrn't

DENOTESGROUND

* NOMINAL VALUE MAY VARY.

Resistorsare 1/2watt or less andrated1aJ,or2aJ,unlessotherwise indicated.

* ·NOMINAl VALUE MAYVARY.

Resistors are 1/2wattor less andrated1aJ,or 2aJ,unlessotherwiseindicated.

A PHOTOFACT STANDARD NOTATION SCHEMATIC

with CMU.iiih·'.'© Howard W .Sams & Co ., Inc. 1965

AUSTIN HEALY AND MGMODEL HAC700 (4TMB)

PARTS LIST AND DESCRIPTIONReplacement parts shown may besuperseded bytheavailability ofnewly introduced replacements.Have your local distributor check Sams COUNTER FACTS®for the most up-to-date replacement.

TRANSISTORSREPLACEMENT OATA

ITEM ORIG.USE

GENERALNo. TYPE DELCO ELECTRIC RCA NOTES

PART No. PART No. PART No.

Xl 2SA72 RF Amp. DS-25 GE-I PNPX2 2SA72 Cony. DS-25 GE-I PNPX3 2SA72 IF Amp. DS-25 GE-I PNPX4 M54 IstAF Amp. DS-46 GE-IO NPN

(2N2712)X5 M54 2ndAF Amp. DS-46 GE-I0 NPN

(2N2712)X6 2Nl76 Output DS-520 GE-3 PNPt

• When replacing, apply silicon grease to both sides of insulator. Tighten mounting screws securely.

POWER RECTIFIERS & SIGNAL DIODES

ORIGINAL RECTIFIERS DIODESITEM MEASURED

Part orNo. CURRENT GENERAL ELECTRIC MALLORY RCA SARKES TARZIAN GENERAL ELECTRIC

Type No. PART No. PART No. PART No. PART No. PART No.

X7 INl39 IN295X8 IN139 IN295

ELECTROLYTIC CAPACITORSRATING REPLACEMENT DATA

ITEM Motorola CORNELL- GENERAL GENERALNo. CAP. YOLT. PART No. AEROYOX

DUBILIER ELECTRIC INSTRUMENTMALLORY SPRAGUE

PART No. PART No. PART No. PART No. PART No. PART No.

Cl 500 16 23C41928Al9 PRS1290 BR500-25 QTl-32 TD-50Q-25 TC2505 TVA-1209C2 1000 10 23C41928A10 PRS1180 BRlOOO-12 QTl-32 BL2430 TVAS-1l28*C3 16 16 23C41928A13 CRE609A NLW15-25 MTI-ll MLV15-25 TT25X15 TL-1156C4 1.6 16 23C41928A09 CRE60lA NLW2-50 MTl-l BL1160 TT50X2 TL-1201C5 400 16 23C41928A15 PRS1220 BR500-l5 QTl-30 BL2340 TC1505 TVA-1162

* Not normally in distributor's stock. Available thru distributor on order to manufacturer.

FIXED CAPACITORSREPLACEMENT DATA

ITEMRATING REMARKS CORNELL-

No. AEROYOX CENTRALAB DUBILIER ELMENCO MALLORY SPRAGUEPART No. PART No. PART No. PART No. PART No. PART No.

ClO 5-60 #02C40944A06Cll .0068 100V DBE6D68 CPR-6800J WMF2D68 6DP-1-682 PVC4268 6PS-D68C12 .01 100V I DBE4Sl iCPR-lOOOOJ ~WMFlSL : ).lDP-I-I03 , IPVC2l 1· f4PS-S I 0C13 .05 100V DBE6S5 DPMS2S5 IDP-2-503 PVC215 2PS - S50C14 Lmfd UK-l05 HCC3l05P HY-135C15A 250-390 #20C4048lA07

a 240-350C16 .005 100V DBE6D5 CPR-5000J DPMS6D5 lDP-1-502 PVC625 6PS-D50C17 .005 100V DBE6D5 CPR-5000J DPMS6D5 IDP-1-502 PVC625 6PS-D50C18 150 N750 N750-DI150 DTN-150 CI0T15U CCTN-151 CN7315 10TCU-T15C19 .22 100V DBE2P22 DPMS2P22 IDP-3-224 PVC 1022 2PS-P22C20 lmfd UK-l05 HCC3105P HY-135C21 150 DI-150 DD-151 LAlOTl-S3 CCD-151 GP315 5GA-T15C22 .01 BPD-Ol DD-l03 BYAlOSl CCD-I03 BllO 5HK-SlOC23 .025 TTD-025 CK-253 H4 TA125 TG-S25C24 lmfd UK-l05 HCC3l05P HY-135C25 .47 UKlQ-404 HCCl0474Z HY-330C26 .22 100V DBE2P22 DPMS2P22 IDP-3-224 PVC 1022 2PS-P22C27 68 N750 N75Q-DI68 DTN-68 CIOQ68U -CCTN - 68f) CN7468 lOTCU-Q68C28 .1 100V DBE2Pl WMFlPl lDP-2-104 PVClOl 2PS-PlO

# Motorola Part Number

CONTROLSAll wattages 1/2 watt, or less, unless otherwise listed.

ITEMUSE

RESIST-No. ANCE Motorola

..P.t\BT -'~o.

C23 .025 TTD-025 H4C24 Imfd HCC3105PC25 .47 HCCl0474ZC26 .22 100V DBE2P22 DPMS2P22 lDP-3-224 PVCI022C27 68 N750 N750-DI68 DTN-68 CIOQ68U ,CCTN - 68f) CN7468C28 .1 100V DBE2Pl WMFlPl lDP-2-l04 PVClOl

# Motorola Part Number

CONTROLSAll wattages 1/2 watt, or less, unless otherwise listed.

REPLACEMENT DATAITEM

USERESIST-

No. ANCE Motorola CENTRALAB CLAROSTAT CTS-IRC MALLORYPART No. PART No. PART No. PART No. PART No.

RIA Tone., 20K 18D42832A03 FI-25K~ t QJ-1881A FA24L~RUl4T 53,Volume/Switch 10K Tap (l) R16-l0K,FFSl07, OSl437A, IS2000,

@ 22000 RFS200, KR-4 US4l

(1) Part #18D42832A02 used in some versions.<ID Use or iginal spring mounting clips.t "C ONCENTRIKIT" Equivalent: K8(2)Kit with Base Elements and Shafts: Bl1-ll9, P17-115 (Panel)

Bl9-116X, Rl-l30 (Rear)76-1 (Switch)

ITEMNo. USE Motorola

PART No.

PARTS LIST AND DESCRIPTION (CONTINUED)Replacement ports shown may besuperseded bytheavailability ofnewly introduced replacements.Have your local distributor check Sams COUNTER FACTS®for the most up-to-date replacement.

FILTER CHOKE

(When Ordering Specify Model, Chassis & Color)

(When Ordering Specify Mode·l, Chassis & Color)

WIRING DATA

ITEM PART No .

Knob, Tuning or Volume 36B543876Knob, Tone or Dummy 36B543877

FUSES

SPEAKER

MISCELLANEOUS

CABINETS & CABINET PARTS

CABINETS & CABINET PARTS

TRANSFORMER (AUDIO OUTPUT)

ITEM PART No.

Dial Scale 34C42880AOlPushbutton 38B562848Dial Pointer 52B42600AOl

ITEM MotorolaNo. PART NAME PART No. NOTES

M2 Tuner 77D42372A02 AT-506M3 Spark Plate 64A41668AOlM4 Spark Plate 64A41668AOl

REPLACEMENT DATA

ITEM Motorola lITIElFUSE BUSSNo. TYPE RATING PART No. PART No. PART No.

FUSE I HOLDER fUSE I HOLDER FUSE I HOLDER

Ml AGA 5A 65R122345 19C41095A17 301005 I155004A AGA5 I HAF

ITEM MotorolaNo. PART NAME PART No. NOTES

M2 Tuner 77D42372A02 AT-506M3 Spark Plate 64A41668AOlM4 Spark Plate 64A41668AOl

REPLACEMENT DATAITEM TYPE Motorola QUAM NOTESNo. PART No. PART No.

SP! 5" PM 8n 5OC42867A02 5A15Z8 Used in Model Austin Healy Sprite & MG Midget & AustinHealy 3000 Mark ill

5!-n X 7!-n PM 8n 5OC42868AOl Used in Model MGB.5" PM 8n 5OC42867AOl Used in Model MG-ll00

REPLACEMENT DATAITEM IMPEDANCE

Motorola I MERIT ISTANCOR ITHORDARSONI TRIAD NOTESNo.

PRJ. I SEC. PART No. PART No. PART No. PART No. PART No.

T! 25n I 8n 25D4210lAIO I I I I

RATINGS REPLACEMENT DATAITEM

CURRENT INDUCTANCE Motorola MERIT STANCOR THORDARSON TRIAD NOTESNo.

(Measured) DC RES (0 CURRENT PART No. PART No. PART No. PART No. PART No.1000~)

L8 920ma .50 llMH 25D4203?A07 C-4095 TC-2 TR-154 TYl7XT

General-use Unshielded Hook-up Wire • •..••...•.•...... Use BELDEN No. 8530 (Solid) Available in 12 Colors8524 (Stranded) Available in 12 Colors

Shielded Hook-up Wire ..•••••. .... 0 •• •• • • • • ••• • • • • • •• Use BELDEN No. 8885