Yamaha A-S2000 Service Manual - Page 44
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A B C D E F G H I J A-S2000 1 2 FUNCTION (3) P.C.B. (Side A) 3 U, C, T, K, A, B, G, J models R, L models FRONT (1) (CB501) +5M PDET /RES RY_PWR MG 9V +12C CB25 W1 CB23 DGND -12C PRV RY_SPA RY_SPB PSAV1 PSAV2 MG PSVA1 PSVA2 MG +5M PRV MAIN (3) (W317) Brown Black Brown 4 5 6 7 44 Circuit No. C6 CB2 J1 W11A, W11B X : NOT USED O : USED/APPLICABLE BC3 BC4 FRONT (14) (W8A, W8B) R, L models POWER TRANSFORMER U, C, T, K, A, B, G, J models GY BR BC2 BR GY U, C, T, K, A, B, G, J R, L X O X O O X O X AC IN W4 R, L models POWER TRANSFORMER COM OUT IN COM IC51 OUT IN IC52 W3 RY_SPA+ RY_SPB+ -12C FRONT (13) (CB79) RY_SPA+ RY_SPB+ -12C BALANCE (CB203) • Semiconductor Location Ref no. Location D9 E3 D11 E3 D306 G4 IC51 F5 IC52 G5 Q3 F4 Q5 F4 Q144 G6 Q145 G6 Q146 G6 Q147 G6
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