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SA-HT640WPL
SCHEMATIC DIAGRAM-8
B
MAIN CIRCUIT
: MAIN SIGNAL LINE
FLFIN
C2177
50V 1
d
Q2101
B1GFGCAA0001
MUTING
C2170
R2168
50V1
2.2K
FLVOLOUT
3
4
R2270
2.2K
2
5
1
6
R2170
2.2K
C2270
R2268
C2277
50V1
2.2K
50V1
FRVOLOUT
FRFIN
40
41
42
:+B SIGNAL LINE
:-B SIGNAL LINE
R2188
12K
R2175
R2176
R2177
R2179
R2193
5.6K
18K
22
22
10
C2194
C2178
C2179
R2178
R2180
1800P
100P
47P
22
22
5
6
7
8
IC2103
C0AABB000125
HEADPHONES AMP
4
3
2
1
C2294
C2278
C2279
1800P
100P
47P
R2275
R2276
R2277
R2279
R2293
5.6K
18K
22
22
10
R2278
R2280
22
22
R2288
12K
43
44
45
HP-LCH
HP-RCH
46
47
48
78
SA-HT640WPL MAIN CIRCUIT
49
50
51
52
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