Panasonic SA-VK725DEE Service Manual page 92

SA-VK725DEE
SCHEMATIC DIAGRAM - 13
MAIN CIRCUIT
C2142
2700P
R2120
R2121
3.3K
22K
C2122 C2121 C2872
0.01
100P 100P
2
1 3 4
IC2811
C0AABA000009
DUAL OP AMP
8 7 6 5
C2241
C2222
C2221
2700P
100P 100P
R2220
R2221
3.3K
27K
C2873 C3618
0.01 10V220
R2507
C2865
50V4.7
R2856
56K
Q2823
B1GDCFGA0018
MUTING SWITCH
C2611
100P
R2048 R2049 R2564 R2881
0 0 100K 1K
JK2804
SUBWOOFER
: +B SIGNAL LINE
: -B SIGNAL LINE
C2219
C2119
50V4.7
50V4.7
R2218
R2118
1K
1K
Q2819
B1GFGCAA0001
MUTING SWITCH
R2219
220K
4 3
C2120
50V4.7
5 2
R2842
3.3K
6 1
R2119
C3617
220K
10V220
R2921
3.3K
R2862
0
C2220
50V4.7
Q2820
B1ABEB000002
1K
MUTING SWITCH
R2508
56K
R2857 C2864 R2855
56K 50V22
56K
R2854
56K
Q2822
B1GDCFGA0018
MUTING SWITCH
12 11 10 9 8 6 5 4 3 2 1
7
CN2802
TO
POWER CIRCUIT (CN5800) ON
SCHEMATIC DIAGRAM - 23
: MAIN SIGNAL LINE
C2306 C2406
50V2.2 50V2.2
R2306 R2406
1.8K 1.8K
R2407
56K
Q2818
B1GFGCAA0001
MUTING SWITCH
4 3
W2127
5 2
0
C2502
6 1
16V10u
R2307
56K
R2506
270
R2848 W2128
1K 0
C2517
50V0.47
R2509
10K
C2969
1000P
W2130
0
R2624
R2310 R2410 C2515
270 50V10 0
270
C2310 C2410 R2511 C2606
50V1 50V1 1K 50V10
12 11 10 9 8
CN2801
TO
POWER CIRCUIT (CN5801) ON
SCHEMATIC DIAGRAM - 23
92
C2602
1
Q2815
R2615
6.8K
R2620
56K
R2616
R2618 R2619 C2860
56K 50V4.7
1K 56K
Q2825
B1ABEB000002
SWITCH
5 4
C2964 C2875
C
100P
6 3
R2510 C2605
SUB
18K
7 2
R2623
8 1
IC2815
KIA4558FEL
C2968
1 DUAL OP AMP
R2226
0
R2227
0
R2228
0
R2095
0
C2332 C2335
1
1
C2231
50V1
R2090
0
6 5 4 3 2 1
7
Q2816
R2852
56K
C2862
50V4.7
Q2815, Q2816
B1GDCFGA0018
MUTING SWITCH
C2603
50V3.3
1
R2622
3.9K
100P
C2604
18K 1000P
R2126
0
R2127
0
R2128
0
C2131
50V1