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SA-HT17PP
SCHEMATIC DIAGRAM - 7
MAIN CIRCUIT
Q412
B1ABDC000011
MUTING SWITCH
W80
Q412
R465
0
470
Q411
B1ABDC000011
MUTING SWITCH
B1GDCFJJ0008
R463
W37
470
0
C524
R462
R469
22
150
R470
R464
150
22
C521
1000P
R474
C520
47K
1000P
R460
R466
22
150
R468
R461
22
150
: +B SIGNAL LINE
: -B SIGNAL LINE
MUTE_ALL
HP_MUTE
Q424
Q423
B1GDCFJJ0008
MUTING SWITCH
MUTING SWITCH
W66
0
R477
R472
W36
1.5K
680K
0
0.1
W64
R482
0
10
R480
R496
470
470
R481
10
Q409
Q408
Q408, Q409
B1ABDC000011
MUTING SWITCH
R473
47K
: MAIN SIGNAL LINE
R720
18K
R719
4.7K
R701
R703
C709
12K
220K
0.022
W67
0
R702
1K
-7.5V
R724
R704
C701
5.6K
100K
50V4.7
5V
SYS6V
HAR_LEVEL
HAR_MUTE
+7.5V
-7.5V
R730
68K
HP_R
C707
50V0.47
-7.5V
R732
HP_L
100K
CON4075
+7.5V
R729
R728
C711
10K
39K
0.047
C708
50V0.33
W63
0
-7.5V
R740
15K
W54
0
34
C703
50V10
R712
10K
IC406
C0ABBB000297
R708
OP AMP IC
R711
1K
100K
C702
1
8
50V10
2
7
R707
100K
3
6
4
R709
5
33K
R733
1.5K
R705
D701
R706
R710
10K
B0ACCK000005
100K
8.2K
Q704
Q703, Q704
B1GDCFJJ0008
MUTING SWITCH
IC407
C0ABBB000297
OP AMP IC
1
8
2
7
C706
C710
R721
50V0.47
220P
10K
3
6
4
5
R725
10K
R727
C712
10K
0.068
R735
100K
IC408
C0ABBB000297
OP AMP IC
1
8
2
7
W82
R742
0
39K
3
6
4
5
Q701, Q702
B1ABDC000011
MUTING SWITCH
Q702
Q701
R714
R713
1K
1K
C704
C705
0.1
0.1
R715
R716
8.2K
8.2K
R717
680K
R718
680K
Q703
W52
R734
0
4.7K
R726
10K
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