Panasonic SA-VK91DGCS Service Manual page 90

SA-VK91DGCS / SA-VK91DGCP
SCHEMATIC DIAGRAM - 10
MAIN CIRCUIT
LINE_LIN
LINE_RIN
+9V
EXT_R
C2955
0.1
R2968
C2959
47K
100P
R2974
100
PARTY
LS_RS
EXT_L
R2165 R2263
4.7K 4.7K
R2317 C2316
47K
R2635
0
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: +B SIGNAL LINE
: -B SIGNAL LINE
8 7 6 5 4 3 2
Z0 Z Z1 Y0
IC2818
C0JBAR000292
ANALOG SWITCH IC
X0 X1 X Y
9 10 11 12 13 14 15
C2148
R2141
1
47K
C2515
R2517
0.47
10K
C2245 R2243
1 47K
C2510
C2514
22P
0.1
R2516
27K
8 9 10 11 12
-VCC
C
IC2817
C0ABCB000052
QUAD OP-AMP IC
SUR SUR
0.1
+VCC
7 6 5 4 3
R2312
27K
C2311
18P
C2149
R2142
0.022
47K
C2246 R2242
R2646
0.022 47K
0
: MAIN SIGNAL LINE
C2144
50V47
8
R2159 C2143
100K 0.01
KIA4558FEL
DUAL OP-AMP IC
R2258 C2240
0.01
100K
1
R2970
1
470
C2239
33P
Y1
R2971
C2241 R2257
100K
27K
50V47
C2956
0.1
16
D2834
R2342
B0BC5R000009
10K
R2144
C2511
22K
330P
C2512
R2518 R2524
10K 1 1K
R2637
13 14
C
C2312
0.082
2 1
R2315 C2314 R2319
1
22K 10K
C2313 C2302
R2318 R2145
22P 50V1
33K 100K
R2320
22K
90
R2158 R2157
27K 3.3K
C2142
33P
KA_LOUT
R2155 C2140
7 6 5
1K 50V4.7
C2141 R2156
50V33 47K
IC2819
C2238
R2255
50V33
47K
2 3 4
C2237
R2254
R2256
50V4.7
1K
3.3K KA_ROUT
R2520
5.6K
R2521
0
0 Q2842
B1ABEB000001
SWITCH
R2322
22K
R2323
1.8K
R2325
56K
Q2841
B1BCCFGA0005
SWITCH
C2317
50V3.3
R2321
56K
+9V
-9V
DSP_C
SFC
-9V