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SCHEMATIC DIAGRAM-22
SIDE:A SIDE:B
BUFFER AMP CIRCUIT
: -B SIGNAL LINE : +B SIGNAL LINE
: MAIN SIGNAL LINE
C640 16V10 FRch
FLch
C639 16V10
CMIX V+ V-
SL2 SR2 R672 4.7K
R671 4.7K
R673 47K
R675 1K
C677 50V1 6 R677 27K 5 1 4 2 3 R694 1K R693 1K
C676 100P 0.01 C694 C675 C673 100P 33P
R674 47K C674 33P 1 2 3 4 SWO2 8 SR2 SR SL2 CENT3 CMIX 5V SW FLch AGND FRch VV+ R688 39K C688 16V10 C686 1000P R686 56K C684 100P SWO2 CENT3 MUT_S SUBW_MIXSW R682 27K 7 6 5 4 9 10
R676 1K C678 50V1
R678 27K
Q610 B1GFGCAA0001
MUTING SWITCH C680 16V10
11
12 SL
13
14
TO MAIN CIRCUIT (CP602) ON SCHEMATIC DIAGRAM-20
IC603 C0ABCB000052
QUAD OP-AMP CNT 3 2 1
C687 50V1
C689 16V10
5 6 7 8 9 10 11
R689 3.9K
Q611 B1ABGC000001
MUTING SWITCH
R696 1.2K
C693 0.01 C683 100P C685 47P R685 39K R687 2.2K Q701 R705 22K R695 1K
B1ADCF000001
MUTING CONTROL
R709 10K R701 1K
C701 16V10
D721 B0ACCK000005 R706 22K 5V
CN602
R703 18K
R681 3.3K
Q702
R711 100K
Q701
R710 10K
B1ADCF000001
SWITCH C702 16V10 R704 18K
R712 100K
Q702
R702 1K
SCHEMATIC DIAGRAM-23 BUFFER AMP CIRCUIT
R670 560 C662 16V22 R662 1K C691 16V10
: -B SIGNAL LINE : +B SIGNAL LINE
: MAIN SIGNAL LINE
FL FR SUBWO
C648 50V1
R648 47K C670 0.01
C665 R667 270K 0.039 0.1
0.15 R663 82K R664 82K R660 2.2K
C642 0.033
R646 8.2K
R665 8.2K 15K
C667
C666
C644 0.1 D646 B0ACCK000005 R644 33K C646 100P 23 24 HPF2-1 HPF2-2 R669 560 D646
R661 12K
R666
C661 470P
22 NF2
21 OUT2
20 VEE
19 CIN
C668 10V33
C664 17 VR 16 HPF3-1 15 HPF3-2 14 LPF1 13 LPF2 INVLPF LROUT LEVEL1 LEVEL2
18
HPF1-1
HPF1-2
DIGITAL SOUND CONTROLLER OUT1 LRNF VCC NF1 B1 B2
IC602 C1BB00000389
5600
C663 0.047
GND
FR FL SL R655 27K CCH ATT1 ATT2 SR SUBWO ATT1 ATT2 MUT_S
1 2 3 4 5 6 7 8 9 10 11 CN603
100K
R643 33K D645 B0ACCK000005 C643 0.1 C641 0.033 R645 8.2K C647 50V1
2 1 C645 100P
3 15K
4
5
6
7
8
9
10
11
12
R651
R652
R647 47K R642 68K
D645
50V1
R653 27K
R654 820K
D653 B0ACCK000005
R641 68K
D654 B0ACCK000005
C669 0.01
C655
C656 50V1
R656 27K
TO MAIN CIRCUIT (CP603) ON SCHEMATIC DIAGRAM-20
SUBW_MIXSW MUTEA
C679 16V10
SL
MUTEA
SR
CCH
Q612 B1ABGC000001
MUTING CONTROL R690 27K