Western Auto Supply Co. D-1190 Schematic

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Product Information:
Model:D-1190
Manufacturer:Western Auto Supply Co. (Truetone)

Schematics Content:

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Page 1:

TRUETONE PAGE 12-87

1 OM Sv ....... Enough 033853:: Hsu-W5; ?63 m6 . . 1 . V

(C)John F. Rider, Publisher

Page 2:

PAGE 12-38 TRUETONE

Mm D WESTERN AUTO SUPPLY C0.

SCREW '

FITTING

_ Adjusting Antenna Trimmer
After the antenna is connected,
tune in a weak signal at approxi-
mately 1400 KC with the volume
control about three-fourths on. Turn
the adjusting screw of the antenna
trimmer (C4) up or down until
maximum output is obtained. See
Fig. 3 for location of this trimmer.

Calibrating the Radio

To calibrate the radio, tune in a
station of known frequency. Remove
the dial lam'p assembly from the
back of the control unit. The cali-

bration screwis at the bottom ofthe "EE"
dial lamp tube. Insert a line bladed
screwdriver and tum this screw szLow
until the pointer is at the fre uen >>~->>~-
q cy BLUE "all ' ANT.TR1MMER

r of the station being received.
I A short insulated screwdriver will

` ` CONDENSER

CHECK VIBRAYOR

DRILL a'sz

Fig. 4-Locatio'n of Hex Nur

Tubes 'and Vibrator Fig. 3-General, Installation View
I ALIGNMENT PROCEDURE '
i Volume Control-Maximum All Adiustments. The following equipment is required for aligning:
r - . - _ A Signal Generator which will provide on accur-
` Connect _Radio Chessls fo Ground Post of Slgnal Gener amy calibramd signal a* *he *es* frequencies
i ator wlth o Short Heavy Lead. as "shi
Allow Chassis and Signal Generator to "Heat Up" tor Output Indicating Meter-Non-Metallic Screwdriver.
i Several minutes. Dummy Antenna-.05 mt., See Note A.
1 SIGNAL GENERATOR ADJUST TRIMMERS `
l FREQUENCY CONNECTION DUMMY TO MAXIMUM
` SETTING AT RADIO ANTENNA IRON CORE SETTING (See Figs! and()
' (prong Nm a) Extreme Position Isl LF. (Cl II lr (C_IZI
456 KC ASA'I llt Dot-Tube , .05 mf. oul ot Coil 2nd |.F. (CIS) E (Ol?l
OSCILLATOR
l Antenna Cable Btrlmo Position
i |600 KC Soo Nato A Seo Note A out of Coil Oscillltcr (C5)
" |400 Kc ADJUSTMENT
i Tune to Mex. Output Int. (C5)
t Hoo Kc Annu... cnbl. s., Nei. A vm. Tuning Knob An. (c4)
; Reessemble Radio-Install in Car-Connect Car Antenna to Radio.
V Car Antenna Readiustment-Tune in weak signal near |400 KO-Readiust Antenna Trimmer C4 for maximum output.
Attenustu the signal from the signal gnn- cepseity ct the eniannl cable end dummy CALIBRATION--Tu ?alibrnto the rndio.
erlt?r t? 9mm* tl" -kwlinq-d? l?ti?n v* antenna 'neuld bu so mmf. It th. "bln, ter in... in . mm" d ine" ffnquney. AI it"
the AVG oumple, hu l annuity of 30 mmf.. un l 3? back ot the control unit 'u the calibutlen
. An., "ch "ng, i, ??mPM?? hp," n, mint. :end-nm ter l dummy anhnnu. Con- ;enw. Remer the dial lamp assembly. Insert
` procedure ax a final chock. . noet thu other ond of the lntonnl cable a tin. bladsd screwdriver and turn this-screw
? ~ NOTE A_.|",.rt gh. hm.. "H- plug an through the dummy unhnnn capacity to the until the pointer on the dial scale is at the
? the lntonnl waht on the elnsxix. The totll output of the signal gonorl r. frequency of the station being received.

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