Panasonic SA-VK31EE Service Manual page 56

SA-VK31EE
SCHEMATIC DIAGRAM - 5
MAIN CIRCUIT
Q2107, 2707
B1ABEB000001
MUTING SWITCH
Q2101
B1ABCF000131
AMPLIFIER
D2101
MA2J72800L
R2131
R2133
100K
1K
R2132
3.3K
R2127
R2126
47K
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
47K
0
R2732
D2701
3.3K
MA2J72800L
R2733 R2731 C2728
1K 100K 16V10
B1ABCF000131
: PLAYBACK SIGNAL LINE
: RECORD SIGNAL LINE
: -B SIGNAL LINE
: +B SIGNAL LINE
CDR R2710 5.6K
CDL
R2110 5.6K
R2111 C2104
5.6K 220P
+9V
Q2107
R2155
R2156
100K
1K
Q2707
R2755
100K
R2756
1K
R2130
1K
Q2101
C2128
16V10
R2129 R2199 R2799
6.8K 0 0
C2121
R2123
16V10
3.9K
R2124
4.7K
C2122
0.018
C2722
0.1
R2159
0
R2724
4.7K
C2721
R2723
16V10
3.9K
R2729
6.8K
R2730
1K
Q2701
Q2701
AMPLIFIER
R2759
0
: VCD AUDIO SIGNAL LINE
: AUX SIGNAL LINE TO
TUNER/MAIN CIRCUIT
: MIC SIGNAL LINE
(1A) ON
: AM/FM SIGNAL LINE
SCHEMATIC DIAGRAM - 3
(1B)
: MAIN SIGNAL LINE
A B C D
D2901
B0BC7R500001
C2903
R2711 C2704
5.6K 220P
C2910
C2911
C2106
Q2902
B1ABCF000131
SWITCH
C2107
R2957
C2108
22K
Q2902
C2930 C2109
0.039
C2906
R2956
220
C2112
16V10
R2158
C2111
R2955
16V10
4.7K
C2113
R2119
1.2K
C2114
C2115
R2120
1.5K
C2116
C2117
C2118
C2119
R2121
39K
C2120
R2122
C2905 R2911
16V220 0
C2146
0.1
56
E F G H I J
C2902
0.01
C2901
1000P
D2901
1000P
R2714 R2114
1K 1K
C2904
50V1
6.3V100
1 REF IN SUR1 42
6.3V100
R2905
2 REF OUT SUR2
41
16V10 C2706
IN A1 IN A2
3 40
C2707
16V10
4 IN B1 IN B2 39
16V10 C2708
5 IN C1 IN C2 38
C2709
16V10
6 IN D1 IN D2 37
0.15 C2929
VCUT MIC IN
7 36
8 REC1 REC2 35
R2758
0
9 A_VOLIN1 A_VOLIN2 34
C2713
50V0.33
10 TBI1 TBI2 33
C2714
50V0.33
IC2900
TBO1 TBO2
11 32
C2715
0.027
12 31
TMI1 TMI2
0.027
C2716
13 TMO1 TMO2 30
2200P C2717
TT1 TT2
14 29
16V10 C2718
15 TOUT1 TOUT2 28
B_VOLIN1 B_VOLIN2 27
16
0.47
C2720
17 26
BB_A1 BB_A2
C2719
0.47
18 BB_B1 BB_B2 25
680
OUT1 OUT2
19 24
R2722
680
20 VCC GND 23
R2907
2.2K
21 DATA CLOCK 22
R2908
2.2K
IC2900
C2908
C1BB00000747
100P
ASP IC
LINE_R
LINE_L
AUXL
6.8K
16V10
16V10
16V10
16V10 AUXR
R2906
100
MIC
16V10
C2711
C2712
16V10
16V10
0
50V0.33
R2719
1.2K
50V0.33
0.027
R2720
1.5K
0.027
2200P
16V10
0.47
R2721
0.47
39K
ASP_CLK
ASP_DAT