RCA-Victor-Co-Inc-RHD-21J 电路原理图.pdf

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1、VOLUME R-26, MOST-OFTEN-NEEDED 1966 RADIO SERVICING INFORMATION . 12BE6 LI CONV 12AV6 OET - 1ST AUDIO 50C5 AUDIO OUTPUT _ 116 V 7 ,cf.j !-AVV R7 KwJ f. 1 ; irrirrm LI fZHKITt loop C1-. I OS 2 1 WMy Cl Ita!v V* S 5*X3“ C4 B., PJ SPEAKER * ,5- 100 3*2- VC. - RESISTANCE VALUES ARE IN OHMS K- IOOO ALL C

2、APACITANCE VALUES LESS THAN I O ARC INlf, VALUES 10 AND ABOVE ARE IN fifi EXCEPT AS NOTEO VOLTAGES ICASUREO TO COMMON NEGATIVE t+| WITH “VOLTOHMYST AND SHOULD HOLD TITHIN 20% WITH RATED LINE VOLTAGE Slep Connect high side of signal gen. lo Set signal gen. to Turn radio dial to Adjustfor peak output

3、Pin #1 of V2 (12BA6) through .01 pit capacitor 455 kc Quiet point T2 (2nd l-F trans.), top and bottom cores 2 Pin #7 of VI (12BE6) through .01 pit capacitor (Modulated) kc T1 (1st l-F trans.). top and bottom cores 3 Repeat steps I and 2 4 1620 kc (Modulated) Gang fully open C1-B-T (osc. trimmer) 5 S

4、hort wire placed near antenna to 1400 kc (Modulated) 1400 kc signal C1-B-T (Ant. trimmer) 6 radiale signal 600 kc (Modulated) 600 kc signal T3 (osc. coil) (rock gang) ELECTRO LLMINESCENT DIAL IPO VOLTS *0 CYCLES POWER SUPPLY SQ= xx TERMMCW TOW. VIEW lOHi Repeat steps 3, rca victor This is exact mate

5、rial for the following: RGA-27 Series, Chassis RC-1213R; RGD-30 Series, Chassis RC-1213M; and this group of sets are very similar: RHA- 12G,N, Y, RHA-17A,E,J, RC-1213W; RHD-13N.Y, RHD- 17A, J, Y, using Chassis RC-1213AB; RHD-21A,J,T, using Chassis RC-1213AA. red! ISWITCH n I #blu. Chassis LayoutRC-1213M, R View from Component Side 111 TO CLOCK ( RC-12I3R ONLY) 收音机爱 好者资料库 RadioFans.CN