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