Westinghouse-Electric-Corp-V3004C01 电路原理图.pdf

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1、WESTINGHOUSE Models: RC42R67B, 42R87B, 52R07B, Chassis: V3004C01, 2, 3, 4 RT42R37B, 42R87B Q2 FM CONVERTER T2 1ST FM IF (10.7 MHi) Ileal I WO WO jO-Qt o.oij AMFM 09 ! GANG I C42; R155 o.oi 470 f 1 % r; - 1 “I ;C20 s Ts.6 -II.2V 1 : rio |lO T i.w 5 Li_ 1 - J-0 “ AM : All /pC32 ; j* 1 1 680 l0,01 0.1

2、T OSC 1 1 TRIM I w fllll - - -J T5 1ST AM IF _ (4 5V-)-|- 03 I 1 dll AM i notes, converter 1. UNLESS OTHERWISE IN0ICATE0. ALL CAPACITANCE VALUES LESS T *33 THAN 1 ARE IN MF. AN0 ALL VALUES GREATER THAN 1 ARE IN PF. 0.01 ALL RESISTANCE VALUES ARE IN OHMS 0.5 WATT. -1 2. VOLTAGE MEASUREMENTS MADE WITH

3、 VTVM FROM POINTS INDICATED ., TO CIRCUIT GROUNO WITH TUNING CAPACITOR AT MAX, VOLUME CONTROL AT MIN (NO SIGNAL INPUT) LINE VOLTAGE SET AT 120 VAC. _ _ 1 UNDERLINED VOLTAGES TAKEN IN FM POSITION. LZ_ . RESISTANCE MEASUREMENTS TAKEN WITH COMPONENTS IN CIRCUIT. * C33 COMIECTEO IETIEEN TUNER AND CHASSI

4、S ON CLOCK MODELS, SWITCH SW1 IS PART OF CLOCK NON CLOCK - CIRCUIT GROUNO MODELS SWITCH SW1 IS PART OF VOLUME CONTROL R! ROTE- 41 I APPIT SILICONE CREASI TO SLIORTIT FLATTER Tl iSEgARB ONIENOHCH PRESSURE TO HOUHTlNC SCREW OUTPUT LA. l A4oV!W 1 1- + BVjv II.BV 390. E +3.7V m i J -; R3T m : i.5K 04);

5、330Ji ll VOL 1 CONT 50K 1 , VOLTAGE 1 ADJUST 1 R3B 22 M3 10* Loro - mi 35 n: REAR VIEV SW2 (SHORN IR AR POSITION) u*ut 1i- A TRANS |Kf / M CUM mea m) internal fm antenna 168 (Continued on next page.) 收音机爱 好者资料库 RadioFans.CN Figure 9 Bottom View PC Board 350V281 HOI Westingnouse (Continued from prece

6、ding page. ) 13 O5 JNDFMIf OTMHi) 2ND F FM RAF 2ND AM 455.Hr) AMP ,3 (10.7 f FM RATIO OET (10.7 MHz) Models: RC42R67B, 42R87B, 52R07B, RT42R37B,42R87B; Chassis V3004C01, 2, 3, 4 . a il -* . 06 , AVC AMP MJ: ,J5?_f 0004 7nV*1 -CM - Ml : 55 Mi T 4 71 | AM IF 455 KC FM IF 10. 7 MC Figure 7 Bottom View Tuner TONE VOLUME 169 收音机爱 好者资料库 RadioFans.CN

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