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SCHEMATIC DIAGRAM - 25
INPUT CIRCUIT
R451
1K
DVD_SW
C451
R453
100P
10K
C452
R454
100P
100K
DVD_C
R452
1K
R475
1K
DVD_SR
C467
R477
100P
100K
C468
R478
100P
100K
DVD_SL
R476
1K
JA106
R499
1K
C483
R501
100P
100K
C484
R502
100P
100K
R500
1K
A
B
: +B SIGNAL LINE
: -B SIGNAL LINE
: MAIN SIGNAL LINE
C453
25V10
5
6
7
8
R455
47K
IC451
C0ABBB000125
OP AMP IC
R456
47K
4
3
2
1
C454
25V10
C469
25V10
5
6
7
8
R479
47K
IC454
C0ABBB000125
OP AMP IC
R480
47K
4
3
2
1
C470
25V10
C485
0
25V10
5
6
7
8
R503
47K
IC457
C0ABBB000125
OP AMP IC
R504
47K
4
3
2
1
C486
25V10
71
R457
3.3K
R459
1.8K
C455
0.1
C456
0.1
R481
3.3K
R483
1.8K
C471
0.1
C472
0.1
R505
3.3K
R507
1.8K
C487
0.1
JA90
0
C488
0.1
SA-XR70E / SA-XR70EB / SA-XR70EG
Q451
B1GFGCAA0001
MUTING SWITCH
3
4
2
5
1
6
JA63
0
R460
1.8K
R458
3.3K
Q453
B1GFGCAA0001
MUTING SWITCH
3
4
JA70
0
2
5
1
6
R484
1.8K
R482
3.3K
Q455
B1GFGCAA0001
MUTING SWITCH
3
4
2
5
1
6
R508
1.8K
R506
3.3K
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