Western-Auto-Supply-Co-D976 电路原理图.pdf

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1、CONTROL HEAD IN THIS INCLOSURE. MANUAL OF 1940 MOST POPULAR SERVICE DIAGRAMS TRUETONE MODEL D976 Lt/3& + iVil Circuit Diagram Reference No. Part No. R1 101161 1 R2 13019 R3 13054 R4 13079 R5 13019 R6 13054 R7 13012 R8 13012 R9 13021 R10 13065 Rll 130235 R12 13019 R13 13056 R14 13056 R15 130208 R16 1

2、3020 R17 130118 R18 130101 R19 13019 R20 13011 R21 1305 R22 13011 R23 130274 R24 130273 CIO 1292 CU 10022 Cl2 1296 C13 12912 C14 10031 C15 10031 C16 11626 C17 1009 08 1295 C19 10011 C20 10026 C21 10037 t. Description RESISTORS L2 megohm volume control 1 megohmA w. 500 ohmA w. 400 ohmA w. 1 megohmA w

3、. 500 ohmA w. 50M ohmA w. 50M ohmA w. 20M ohmlA w. 30M ohm1 watt 1500 ohmA w. 1 megohmA w. 100 ohmA w. 100 ohmA w. 40M ohmA w. 100M ohmA w. 600M ohmA w. 600 ohmA w. 1 megohmA w. 250M ohmA w. 3COM ohmA w. 250 ohmA w. 360 ohm1 watt 900 ohm1 watt CONDENSERS Antenna Shunt Trimmer Antenna Series Trimmer

4、R. F. Shunt Trimmer .15 x 400 v. Oscillator Shunt Trimmer .0005 Mica .00017 Mica .05 x 200 v. .00005 Mica .0005 Mica .05 x 200 v. .002 Mica .00025 Mica .5 x 120 v. .5 x 120 v. .25 x 400 v. .05 x 200 v. .0001 Mica .01 x 400 v. .02 x 400 v. .003 x 600 v. WHEEL STATIC: SI 101161 Si * S2 12574 T|i Wheel

5、 or brake noise is probably the most peculiar type Pi 10797 6 of interference and is due to accumulated static charges. This 12610 V type of interference is only noticeable while the car is in mo tion and could very easily be confused with ignition interfer ence. Check for this with car running at a

6、 good speed, turn the ignition switch off and the clutch disengaged, apply the brakes. If the noise stops, the source of the static is in the wheels. To overcome the wheel static condition, use graphite grease in the wheel bearings or insert grounding springs in the hub caps. In the case of external

7、 brakes, it may be neces sary to ground the brake bands to the frame of the car. COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS C22 1295 .0001 Mica C23 100100 .008 x 1600 v. C24 10011 .01 x 400 v. C25 11626 .25 x 200 v. C26 11981 16 mfd. C27 11981B 16 mfd. C28 10089 .008 x 800 v. C29 10074 .1 x 400

8、 v. PARTS T1 111118 P. B. Antenna Coil Assembly T2 10949 P. B. R. F. Coil Assembly T3 110109 P. B. Oscillator Coil Assembly T4 108137 Input I. F.465 kc. T5 108138 Output I. F.465 kc. T6 10586 Output Transformer T7 114154 6” Dynamic Speaker T8 104159 Power Transformer LI 10566 “A” Choke L2 10519 “A” Choke SI 101161 Switch on Volume Control S2 12574 Tone Control Switch PI 10797 6-8 v. Pilot Lite - T51 12610 Vibrator 171 收音机爱 好者资料库 RadioFans.CN