Panasonic SA-VK31GC Service Manual page 57

SCHEMATIC DIAGRAM - 5
MAIN CIRCUIT
CDR
CDL
+9V
Q2107, 2707
B1ABEB000001
MUTING SWITCH
Q2101
B1ABCF000131
AMPLIFIER
D2101
R2130
MA2J72800L
1K
R2131 C2128
R2133
100K 16V10
1K
R2132
3.3K
R2129
R2127
R2126 6.8K
56K
2.7K
C2125
C2126
100P
47P
1 2 3 4
IC2901
C0AABB000117
HEADPHONE AMP
8 7 6 5
C2726
47P
C2725
100P
R2726
2.7K
R2727
R2760
56K
0
R2732
D2701
R2730
3.3K
MA2J72800L 1K
R2733 R2731 C2728
Q2701
1K 100K 16V10
Q2701
B1ABCF000131
AMPLIFIER
: VCD AUDIO SIGNAL LINE
: PLAYBACK SIGNAL LINE : AUX SIGNAL LINE
: RECORD SIGNAL LINE : MIC SIGNAL LINE
: -B SIGNAL LINE : AM/FM SIGNAL LINE
: +B SIGNAL LINE : MAIN SIGNAL LINE
R2710 5.6K
R2110 5.6K
R2111 C2104 R2711 C2704
5.6K 220P 5.6K 220P
Q2107
R2155
R2156
100K
1K
Q2707
R2755
100K
R2756
1K
Q2101
R2199 R2799
0 0
B1ABCF000131
C2121
R2123
16V10
3.9K
R2957
22K
R2124
4.7K
Q2902
C2122
0.1
C2722
0.1
R2159
0
R2724
4.7K R2955
4.7K
C2721
R2723
16V10
3.9K
R2729
6.8K
R2759
0
TO
TUNER/MAIN CIRCUIT
(1A) ON
SCHEMATIC DIAGRAM - 3
(1B)
A B C D E
C2902
0.01
D2901
D2901
B0BC7R500001
C2903
1000P
C2910 6.3V100
1 REF IN
C2911 6.3V100
2 REF OUT
C2106 16V10
Q2902
3 IN A1
SWITCH
C2107 16V10
4
IN B1
C2108 16V10
5 IN C1
C2109 16V10
C2930
6 IN D1
0.039
C2906 0.15
R2956
7 VCUT
220
8 REC1
C2112
16V10
R2158 0
9 A_VOLIN1
C2111
16V10
C2113 50V0.33
10 TBI1
R2119
1.2K
C2114 50V0.33
11 TBO1
C2115 0.027
12 TMI1
R2120
1.5K
C2116 0.027
13 TMO1
C2117 2200P
TT1
14
C2118 16V10
15 TOUT1
B_VOLIN1
16
C2119 0.47
R2121
17 BB_A1
27K
C2120 0.47
18 BB_B1
R2122 680
19 OUT1
20 VCC
C2905 R2911
16V220 0
21 DATA
C2146
0.1
C2908
100P
57
SA-VK31GC / SA-VK31GS
F G H I J
C2901
1000P
R2714 R2114
1K 1K
C2904
50V1
SUR1 42
R2905 6.8K
SUR2 41
C2706 16V10
IN A2 40
C2707 16V10
IN B2 39
C2708 16V10
IN C2 38
C2709 16V10
IN D2 37
R2906
100
C2929 16V10
MIC IN 36
REC2
35
C2711
R2758
16V10
0
A_VOLIN2 34
C2713 50V0.33
TBI2 33
R2719
1.2K
C2714 50V0.33
IC2900
TBO2 32
C2715 0.027
31
TMI2
R2720
1.5K
C2716 0.027
TMO2 30
C2717 2200P
TT2
29
C2718 16V10
TOUT2 28
B_VOLIN2 27
C2720 0.47
BB_A2 26
R2721
C2719 0.47
BB_B2 25
27K
OUT2 24
R2722
680
GND 23
R2907
2.2K
CLOCK 22
R2908
2.2K
IC2900
C1BB00000747
ASP IC
LINE_R
LINE_L
AUXL
AUXR
MIC
C2712
16V10
ASP_CLK
ASP_DAT