Admiral-Y793 电路原理图.pdf

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1、VOLUME R-20, MOST-OFTEN-NEEDED 1960 RADIO SERVICING INFORMATION m M MODELS Y793 Y797 Y798 Admiral Alignment Point locotions. 1N295 I_Je O 1N295 ij 2N406 output x; (MATCHED PAIR ) Voltages shown measured with no signal, using fresh batteries. All readings made with VTVM between transistor terminals a

2、nd B plus (ground). All voltages are negative. To remove cabinet back, simply insert a small coin into one of the slots on the bottom edge and twist. To remove chassis from cabinet front, first remove the knobs by pulling them off. Remove the back cover as instructed above. Remove the four screws at

3、 the corners of the etched board. Lift entire chassis (etched board with all components) out of the cabinet front. r c _1/C8_ _u C7 _ AVC BUS* C6 , r.T kc li Kce . R 7 V/v A A 1 _AAAv . (CIO * . L LLj; CR2;# EHTTErniLinw V_|ASE PNP TTPE TRARSISTO* t N0U1ITED BN REAR DF BOARD. AIL RESISTORS 1/4 WATT

4、IDV. UNLESS OTHERWISE SPECIFIED IF *455IC COMMON ABOUND Bf) # HATCHED PAIR CAPACITOR VALUES IN MICROFARADS UNLESS OTHERWISE SPECIFlEO- COLOR CODE BOT 4 T1 CRAY B U WHITE ( 13 BROWN II,IP ATJ COTTON VIEW TELLDW NX DOT TOTAL CURRENT (NO SJCNAll S A NA All VOLTAGES TAKEN WITH VTVN *C4 m *R2Q1-Wr-1 R19

5、VW-w - rn- R16 2 *MOUNTEO ON REAR OF BOARD Reor View of Etched Circuit Boord. Groy area represents etched wiring; block symbols and lines represent components ond connections on opposite side. View Show- jh / J ing Clock Battery in . . I| -f,/ Correct Position. IcENTER CAP 4l 收音机爱 好者资料库 RadioFans.CN