Emerson-Radio-and-Phonograph-Corp-120569D 电路原理图.pdf

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1、VOLUME R-22, MOST-OFTEN-NEEDED 1962 RADIO SERVICING INFORMATION Tmerson Radio MODEL 941-B CH. 120569-B MODEL 943-B CH. 120569-D (For circuit diagram see next page adjacent at right) lL COW STWIM8IN9- rO*U LOOP WITH DIAL COW TO TMt SFCCIFICATK)* 1MOWM AW ATTACH TtHSlOH 9MIH9 AT KHOTTCO (HO. JTTACH SF

2、9IHS TO OAUM AHD 9TAIHO AS SHOWN IN OA ?|AH) AT START, FEZO O AL. CORO UNDER AND 81MIHC DIAL ACKRLATC ATTACH DIAL POlNTWlRe. DIAL PORTER ALISNMENTI Tan in t Lr“ o * FIG. 2A, B - DIAL CORD STRINGING CONTROL SHAFTS (REFER TO FIG. 2 FOR FUNCTION) _ - E LJi i TRIMMER ?c m ip moo“c (TOPft BOT), LJ)j CT-B

3、 fil Tsic rja!B 0 C0NV6E 6BA6 I F AMP 0 45 WC (T0P6B0T1 V *UUKJ OUTPUT C-It ILEFT CHANNEL) n “ I2AX7 T-5 25EH5 S WCfj 010 tUDIO AMP FM OSC, 6BA8 AC-RE VERB UNIT AC (MODEL 943-B (RADIO) ONLY) AUDIO OUTPUT R AMP (RIGHT CHANNEL r i r i & T-2j I T, j TO. AUDIO OUTPUT TRANSFORMERS stereo/monaural amp sec

4、tion fm section FIG. 3 - TUBE LOCATIONS AND ALIGNMENT POINTS TREBLE AND I ANO AFC II ON-OFF f (PULL-PUSH) (PULL-PUSH) H VARIABLE I i*06 / r i N.5V) , rv* |e-i ELECTROLYTIC C-eo C-S. ETCHED PRINTED CIRCUIT BOARD, BOTTOM VIEW Hx NOTE. * NOT USED ON MOOEL 941 B (CH IS0S69-B) SYM I TUBE I SW-2 RESISTANCE READINGS CHART, CHASSIS 120569-B. 569-D PIN I | PIN 2 | PIN 3 | PIN 4 PIN 5 PIN 6 NOTES: * Meosured with low side of VTVM connected to junction of R-18, C-16 (B+ point), t Capacitor charge-wait until meter settles (about 30 seconds). 22 收音机爱 好者资料库 RadioFans.CN 23 收音机爱 好者资料库 RadioFans.CN