Yamaha A-S2000 Service Manual - Page 42

A B C A-S2000 1 FUNCTION (2) P.C.B. (Side A) 2 FUNCTION (1) (W3003) 3 12RY OPE-12 AGND AGND OPE+12 NC 60VGND 60VGND LINE1-25V LINE1GND LINE1GND LINE1+25V LINE2-25V LINE2AGND LINE2+25V VOL2-12V VOLGND VOL2+12V VOL1-12V VOLGND VOL1+12V 60VGND 60VGND LINE1-25V LINE1GND LINE1GND LINE1+25V L+ AGND LAGND R+ AGND RRY_DIR RY_BYP EV1_MT EV1_CE EV1_CL EV1_DA MT_M -12RY SW_TRE SW_BAS EV2_CE EV2_CL EV2_DA MG D E F G H I J • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location D4037 F6 IC405 H5 IC413 G6 Q4007 C6 Q4015 H5 Q4023 H5 Q4031 E6 Q4039 E6 Q4047 E5 D4038 F6 IC406 I5 Q401 B5 Q4008 I6 Q4016 C5 Q4024 D5 Q4032 F6 Q4040 F6 Q4048 E4 D4047 H6 IC407 B4 Q4001 C6 Q4009 B5 Q4017 E5 Q4025 E5 Q4033 G6 Q4041 G6 Q4049 E4 D4048 H6 IC408 C4 Q4002 I6 Q4010 G5 Q4018 G5 Q4026 G5 Q4034 G6 Q4042 G6 Q4050 C6 IC401 B5 IC409 D4 Q4003 D5 Q4011 G5 Q4019 H5 Q4027 H5 Q4035 H6 Q4043 H6 Q4051 B6 IC402 C5 IC410 G4 Q4004 E5 Q4012 D5 Q4020 C6 Q4028 C6 Q4036 C6 Q4044 F4 Q4052 I6 IC403 D5 IC411 H4 Q4005 I5 Q4013 E5 Q4021 E5 Q4029 D6 Q4037 D6 Q4045 F4 Q4053 H6 IC404 G5 IC412 I4 Q4006 J5 Q4014 G5 Q4022 G5 Q4030 D6 Q4038 D6 Q4046 F5 FRONT (11) (W6) FUNCTION (1) (W3001) CB402 W4004 FRONT (1) (CB517) 4 5 6 7 42 IC403 IC402 IC401 1 11 44 12 IC407 34 22 33 23 4 5 1 8 1 11 44 12 IC408 34 22 33 23 4 5 1 8 1 11 44 12 34 33 IC409 22 23 4 5 1 8 CB403 CB404 IC406 IC405 IC404 44 1 11 12 34 33 IC410 22 23 4 5 1 8 44 1 11 12 IC411 34 22 33 23 4 5 1 8 1 11 44 12 IC412 34 22 33 23 4 5 1 8 FUNCTION (1) (W3002) MBAL_L+ AGND MBAL_LAGND MBAL_R+ AGND MBAL_RAGND PREOUT_L AGND PREOUT_R INRGND INR+ INL- E INL+ CB401 CB405 CB406 MAIN (1) (W102) 4 5 8 1 MAIN (2) (W202) IC413