RCA-Victor-Co-Inc-3RC2 电路原理图.pdf

《RCA-Victor-Co-Inc-3RC2 电路原理图.pdf》由会员分享，可在线阅读，更多相关《RCA-Victor-Co-Inc-3RC2 电路原理图.pdf（2页珍藏版）》请在收音机爱好者资料库上搜索。

1、VOLUME R-23, MOST-OFTEN-NEEDED 1963 RADIO SERVICING INFORMATION Tt02 J_ 2 0 X Jl A.F.C i K * tOOO ALL RESISTANCE VALUES IN OHMS ALL CAPACITANCE VALUES LESS THAN 1.0 IN HF, VALUES ABOVE 1.0 IN JJL|JLF UNLESS OTHERWISE INDICATED VOLTAGES MEASURED TO COMMON NEG.(+) WITH HVOLTOHMYST*a SHOULD HOLD WITHIN

2、 20 % WITH 120 VOLT INPUT. LI AM CONV. AM AIR LOOP ANT. jf i432 133-2 v* m T Chassis Wiring and ComponentsView from Wiring Side 132 收音机爱 好者资料库 RadioFans.CN VOLUME R-23, MOST-OFTEN-NEEDED 1963 RADIO SERVICING INFORMATION RCA Victor 3RC2 Series, Models 3RC21, 3RC24, Chassis RC-1210D, Continued V4 12AU

3、6 2ND FM HFAMPL. AM DET. (FM)96V i 14GT8 V56 * 14GT8 1ST AUDIO AMPL. 50C5 AUDIO OUTPUT R1S 960 2W (PM) 107 V (AM)H9 V FREQUENCY RANGES Tuning IF AM . 535-l620kc.455 kc FM . 87.5-108.5mc.10.7 me POWER OUTPUT.2.25 watts max. LOUDSPEAKER.4 PM 120 VOLTS . ACDC . POWER SUPPLY ON-OFF FCL Si CBA- ID 1 DRIV

4、E I2BE6 I9HR6 I2AU6 Dial Cord Stringing The Security Sealed Circuit” chassis and londspcaker are mounted in a one piece molded plastic cabinet with a snap-m” hardboard back cover to which is attached the FM antenna terminals, the AM antenna, and the power enrd interlock plug. When the cabinet back i

5、s removed to expose the chassis, the power cord interlock removes power from the chassis; this in conjunction with the isolated control shafts, dial pointer and chassis mounting screens, removes the shock hazard. Chassis RC-1210D utilizes superhetrodyne circuitry in both the AM and FM channels. The

6、AM circuitry consists of a converter stage, an IF amplifier stage, a detector stage, an AF amplifier stage and a power amplifier stage. The FM circuitry consists of an RF amplifier stage, a converter stage, two IF amplifier stages, a demodulator stage, an AF ampli- fier stage and a power amplifier stage. 收音机爱 好者资料库 RadioFans.CN