Panasonic SA-HT940PC Service Manual page 76

SA-HT940P / SA-HT940PC
SCHEMATIC DIAGRAM-10
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 C2277
R2268
50V1 2.2K 50V1
FRVOLOUT
FRFIN
WIDE_SURR
40 41 42
:+B SIGNAL LINE :-B SIGNAL LINE
R2188
4.7K
R2175 R2176 R2177 R2179 R2193
5.6K 64K 22 22 10
C2194 C2178 C2179
R2178 R2180
820P 100P 82P
22 22
5 6 7 8
IC2103
C0AABB000125
HEADPHONES AMP
4 3 2 1
C2294 C2278 C2279
820P 100P 82P
R2275 R2276 R2277 R2279 R2293
5.6K 68K 22 22 10
R2278 R2280
R2288 22 22
4.7K
Q2303
B1GDCFJA0018
R2338 VOLTAGE SHIFTER
1.8K
R2342
1K
F_S_L
4 5 6
Q2306
B1GFGCAA0001
BUFFER
3 2 1
E_F_L
43 44 45
C2325 R2334 R2333
0.047 27K 33K
R2335
22K
C2328 R2314
0.22 10K
HP-LCH
R2326
12K
R2313
22K
R2317 R2332
22K 22K
14 13 12 11 10 9 8
C0ABCB000052
QUAD OP AMP
1 2 3 4 5 6 7
HP-RCH
R2321 R2325
27K 22K
R2324
22K
SLVOLIN
SRVOLIN
8 7 6 5 4 3 2 1
9 10 11 12 13 14 15 16
46 47 48
76
C2425 R2434 R2433
0.047 27K 33K
R2435
22K
R2315 C2428 R2414
10K 0.22 22K
R2323
4.7K
R2413
22K
R2417 R2432
22K 22K
14 13 12 11 10 9 8
IC2104 IC2205
C0ABCB000052
QUAD OP AMP
1 2 3 4 5 6 7
R2421 R2425
22K 22K
R2424
22K
IC2301
C0JBAR000326
MPORT SELECTOR
SA-HT940P/PC MAIN CIRCUIT
49 50 51
R2415
10K
52