Western Auto Supply Co. D1032A Schematic

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Product Information:
Model:D1032A
Manufacturer:Western Auto Supply Co. (Truetone)

Schematics Content:

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Page 1:

WESTERN AUTO SUPPLY PAGE 22-1
MODEL D1032A

GENERAL INFORMATION

Muff D/sco/v/vfcf

TONE CONTROL T BAND AND PI'IONO

Use this knob to adjust the tone RADIO SWITCH
of the receiver. When turned clock- This control has three posi-
wise the high notes will predomi- tions, FM, Broadcast and Phono.

In the Phono position, the elec-
trical circuits are connected for
the reproduction of records

nate and when turned counter-
clockwise a deep bass effect will

played on the external record
ON-OFF SWITCH AND
VOLUME CONTROL TUNING KNOB
The On-Olf switch and Volume control are oper- Use this control to tune in the desired station. Turn
lated by the Same knob. lTo turnihe ri:le Ohhtllllrn the knob until the station is heard. Then slowly rotate
'the knob clockwlse "nhl a "he 's end' ow it back and forth until the signal is clearest and

?approximately 30 seconds for the tubes to heat.
Then continue to turn the knob clockwise to in-
crease the volume.

strongest. If signal is too strong, reduce it by means
of the volume control, not by using the tuning knob.

(C)John F. Rider

Page 2:

PAGE 22-2 WESTERN AUTO SUPPLY

MODEL D1032A

ANTENNA

DRIVE CORD
REPLACEMENT

Replacement of the drive cord
may be accomplished as shown in
the illustration. For this purpose
use the new drive cord assembly
listed in the Replacement Parts
List. Turn the gang condenser un4
til the plates are fully meshed
Then install the string as shown,
winding three turns counter-clock-
Wise around the tuning shaft with
the turns progressing away from
the chassis. After the cord is in-
stalled, rotate the tuning shaft sev-
eral times in order to take up any
slack in the cord.

RECORD PLAYER AND
TELEVISION SOUND
CONNECTIONS

For models not equipped with
built-in record player, a socket
marked PHONO is provided on the
back of the chassis for connection
to an external record player or
automatic record changer. When it
is desired to play records through
the radio, insert the connector on
the cable of any standard record
player into this socket. Turn the
band.switch to the phono position
and use the volume control to ad-
just the sound level.

TRIMMER

C-39 FM R-F ADJ

When television programs be-
come available in your community,
the audio amplifier and speaker of
this radio may be used in conjunc-
tion with aLTelevision Picture Re-
ceiver and sound converter to re-
produce the sound portion of the
television programs. Simply insert
the connector on the cable of the
Television Converter into the soc-
ket marked PHONO and operate
the receiver in the same manner as
described in the foregoing para-

ELECTRICAL
SPECIFICATIONS

Power Output-
117 volts AC-40 watts
50-60 cycles

Power Output-
1,9 watts maximum
.8 watts 10% distortion

Speaker-8 inch PM dynamic
Frequency Ranges-

Broadcast 540-1600 KC
Frequency modulation 88-108 MC

(C)John F. Rider

Intermediate Frequency-

Selectivity - AM - 45 KC broad
at 1000 times signal, measured

LF. FM-200 KC broad at 2 times
down

LF. FM-95O KC broad at 200
times down

AM Sensitivity-(For .5 watt output
with external antenna)`

25 microvolts average

FM Sensitivity-(For .5 watt output)
25 microvolts average

POINTER CLAMP

GANG CONDENSER
IN FULLY CLOSED

Page 3:

VESTERN AUTO SUPPLY PAGE 22-3

I MODEL D1032A
ALIGNMENT PROCEDURES
AM STAGES
The following is required for aligning; Volume Control Maximum all Adiustmenrs.
An All Wave Signal Generator Which Will Provide an Accurately Connect Radio Chassis to Ground Post of Signal Generator with o
Calibrated Signal at tha Test Frequencies as Listed. Short Heavy Lead.
Output Indicating Meter, Non-Metallic Screwdriver, Dummy Antennas Allew Chassis and Signal Generator to "Heat Up" for Several
- .l ml, and 50mmt. Minutes.
SIGNAI. GENERATOR
CONNECT THROUGH CONNECT GANG
FREQUENCY GENERATOR DUMMY GROUND CONDENSER ADJUST ADJUST
smlNa ourrur ro ANTENNA ro ssrrlNG FOR
455 KC Control Grid .l _mf Challis Rotor Fully Open 2nd LF. Pri. (1) Maximum
1st ?BA6 Pin No. 'I Base and Sec. (2) Output
455 KC Central Grid .l nit Chassis latar Fully open lsr l.l=. Pri. (3) and Maninnrm
?BE6 Pin No. 7 Bose 5m (4) Output
455 KC Control Grid -l mf Chassis Rotor Fully 2nd I-F Pri. (l) Maximum
*4 6556 Pin Na. 7 Base open ana sae. (1) output
|620 l>F Loading Resistor-2500 mmf, 300 ohms Allow chassis and signal generator to "Heat Up" for several minutes.
SIGNAl GENERATOR
coNNEcr THROUGH BAND GANG Anrusr
rnrouchv cstliAron DUMMY swlrcil coNDENsER Amusr roli
sE'rrlNc ourrur To ANTENNA SETTING SETTING
alterinlinatar 10,7 Mc als/ta 2nd lr 2500 mmf FM ` Rotor Fully Disc. Pri. (5) Maximum
Pin l and chassis open Nate A mnmtar.
10.7 MC ?BA? 2nd l-F 2500 mmf FM Rotor Fully Disc. Sec. (6)
_ Pin 'I and Chassis Open Note B
I'F IU] MC ?BA? lst I-F 2500 mmf FM Rotor Fully 2nd l-F Pri. (7) Maximum
Note C Pin l and Chassis OP!" Sec. (B) Nate D DeRoction
onernnlnatar 10.7 Mc ' alma lst lr' 2500 ntntt FM Rater fully Diss. Pri. <5) Maximum
__ Pin l ana chassis _ open Nate D netleatian
l-F 10.7 MC Junction C-32A & B 2500 mmf FM Rotor Fully ist l>>F Pri. (9) Maximum
(Dual 100 mmf cond.) Open Br Sec. (TO) Deflection
And chassis 2nd l-F Pri. (7)
In Order Shown
10.7 MC Same as above 2500 mmf FM Rotor Fully Disc. Sec. (6)
Open Note B
RECHECK l-F ADJUSTMENTS IN ORDER GIVEN
Oscillator Disconnect builtsin dipole 300 ohms FM Rotor Fully Osc. C45 Deflection
antenna and connect gen- Open Maximum
eroter to dipole terminals
with resistor in series. __
Anhan 104.5 Same as above 300 chin! FM Tune rotor tor Ant. C~39 Maximum
RECHECK ANTENNA Sr OSC. ADJUSTMENTS IN ORDER GIVEN
FM ALIGNMENT NOTES
NOTE A-Tha zero eenter stole DC vacuum tube voltmeter is to be 27 K ohm resistor (R-lO) and its iunetion with the terminal
connected between ehossis ground and the AVC line. strip. Adiuxt tor xero voltage Indlcotlon.
A signal of .1 volt must be led into the receiver for _ _
'his "dim'merm NOTE C-AM I-F coils must be aligned before attempting ta align
Note output voltage an the zero :enter DC vaeuum 'he FM "F W'Is* ~
"ll-1? '?|""?'?'~ Noir Decanneet sera renter Dc vasuurn tube valtrneter as ln Nate
NOTE B-Diseanneet zero :enter DC vaeuum tube voltmeter from Au Adlust input t? give same output an the zero center DC
Avc and :anneet it at the audio takeoff point at tha vucuum tube voltmeter es in Nate A,

(C)John F. Rider

Page 4:

PAG 22-4 WESTERN AUTO SUPPLY

Swim .2252.2 "355.1 .Uma E 22 w?s?r 255: .mEmEELmn Q_H *o :0235> <
ESE 255.5 EEL.: nv .23; __ Q: wcoZ .2_5 _ocmum
FIT? ...N512 v_ ~ 2_9, 25.18 wsu 523 QUE _252m

.Euhmcmu uzuEmgum Qt :o Esorm who 3923> *91cm

coco

533:35 our

(C)John F. Rider

Page 5:

WESTERN AUTO SUPPLY PAGE 22-5

MO DEL D103 2A
RESISTORS
Ohms Wan;

2;; g 004000 00 0.5 carbon ......

h 12 004002 5000 0.5 carbon ......

RIN MISCELLANEOUS

R05* 885473 47K 045 Carbon ...... 12AA77 81, PlMl speaker

11.11 43x233 3.0 0,5 wirowoano, . . 104759 Knob ............... .

R141 13x540 line corol 0 rnia 4eoornb|y

11.15 035223 221< 0.5 carbon ..... 344:15 Molded oolol robe soolror .

11.17 004221 220 05 carbon ..... 34305 Phono sooher .........

me] 34420 Tuba soolrer (lor 00401 ,

9.19 1 3A427 Tube Socket .............. _. ...

0.24] 005474 470K 0.5 corbon, .. 34439 robe soolrer (Minioraro) ........

0.23 40x310 .5 rrrea4 1one conrrol c.1 144209 Gong condenser Aenernbly ........... l

0.31 004274 270 l< 0.5 carbon ..... C.9

TRANSFORMERS AND COILS

L3 35A9 'nw'cmd Choke Par? of Tr3 (Ist I-F Trans. AM)

1.4 3540 1nealorerl choke ........... C213 g Parr of 1.5 <2nel 1.0 rrone. 4M)

r.1 941972 I'0" Ronge Loop 4nienno .. C_14}

1.3 042002 lei lr rrone. (AM) 2112:; 47x112 50.50 nrrnf 01rolMioa,...

1.5 942003 2nd LF Tram. (AM) .. c.19 47x492 2700 rnnrf Molded Mioa.,

1.0 942101 nieorlilrninoio; I1'ron;;orrner "XMB 220 mmf Ceramic ______

7.8 942007 oeoilloior coil GM) ~ 2:21 45mm 5 mf mov Dry Elwmlym

1.10 942005 Dipole Anlenna :.23 47x550 :10 nrrnf

r-ll 53x29l Power Tronoforrner C44 47X523 1? """f _

1.12 942000 Anranno coil (FM) .. ggi "A255 "8 "'"" T"'"""" "
HJ 000503 .05 ml 200V Tubular ......
c-200 45X300 40 rnf lsov Dry Elee1rolyrio

DIAL AND DRIVE ASSEMBLY C_gaci 40 mf 200V
, c-29 1100102 .001 inf soov Tubular .....
50x742 Drol close ................................ C_ao mwo 330 mmf Molded MMU
19xi92 c washer (M19. Drive shorr) . 76M 10? mmf Dual Ceramicn

OXDG Rubber Grommui . r .. 633)

25x1010 Diol Brooker ............ C56; 000103 .ol mi 200V. Tabular ......

ZBXHS Drive Cord Ter-559" Spring ~ c.:l4 000502 .005 mf 400 vA rubulor rrrrr

74103 No. 47 Pilor lighr ...... c.37 000104 .1 inf 400v rabalor. ,.

nm, PHD, ugh, Socks, Assembly _ c.3a 000203 .02 nrf 400V robalor ......

10x30 Drive coro.4$eenrb|y ., G39] Parr ol c-1 (Gong condoneer)

(C)J0hn F. Rider

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