B) Main Circuit - Panasonic SA-VK81DGCS Service Manual

SA-VK81DGCS / SA-VK81DGCP

21.3. (B) Main Circuit

SCHEMATIC DIAGRAM - 9
MAIN CIRCUIT
TUNER_GND
10
M+9V
9
8
TUNER_RCH
TO 7
TUNER_DO/ST
TUNER
6
TUNER_LCH
C2145
PACK
5
(ENG06802QF) TUNER_SD
4
TUNER_DI
3
TUNER_CLK
2
PORT_SEL
1
CN2808
L
C2100
0.22
LINE OUT
R
L
AUX
R
JK2803
KA_CLK
1
KA_DAT
2
KA_LAT
3
ASP_DA
4
ASP_CK
5
VMUTE
6
MUTE_L
7
MUTE_H
8
HP_MUTE
9
MUTE_C
10
+9V
11
MUTE_SUR
12
13
TO
SUB+BGND
14
PANEL
MUTE_SUB
CIRCUIT 15
SPEA
(CP6801) ON
16
VREF+
SCHEMATIC
17
DIAGRAM - 21 LED9V
18
MUTEA
19
+15V
20
REC_R
21
REC_L
22
AGND
23
PBR
24
PBL
25
MIC
26
MICGND
27
HPR
28
HPGND
29
HPL
30
CN2811
: +B SIGNAL LINE
: -B SIGNAL LINE
D2850
B0BC9R000008
C2242
R2259
50V1
18K
50V1 R2160 18K
C2903
R2161 R2260
C2146
0.01
12K 1000P 12K
C2101
0.22
R2103
L2101
100
J0JBC0000041
R2102 C2102
R2988 L2819
47K 1000P
22 J0JBC0000019
R2200 C2200
47K 1000P
L2201
R2201
J0JBC0000041
100
L2100 R2104
J0JBC0000041 39K
C2103 R2105
R2101
1000P 5.6K
2.2
C2201 R2203
L2200
1000P 5.6K
J0JBC0000041
R2202
39K
D5871
B0ACCK000005
R2992
R2975
R2204
R2106
R2107 R2205
470
470
: MIC SIGNAL LINE
: AUX SIGNAL LINE
: AM/FM SIGNAL LINE
+9V
TUN_R
TU_ST/DO
TUN_L
TU_SD
TU_SDA
TU_SCL
C2243
1000P
C2202
R2207
50V47
0
Q2813
B1GFGCAA0001
MUTING SWITCH
C2104
R2109
50V47
0
AUX_L
+9V
R2860
0
MUTE_L
AUX_R
Q2814
B1GDCFGA0014
MUTING SWITCH
KA_CLK
-9V
KA_DAT
KA_LAT
ASP_DA
ASP_CK
KA_LOUT
VMUTE
MUTE_L
R2164 C2130
3.3K 50V10
MUTE_H
R2140
HP_MUTE
MUTE_C
+9V
R2645
MUTE_SUR
R2632
MUTE_SUB
SPEA
C2128
6800P
VREF+
0 LED9V
0 MUTEA
+15V
LINE_RIN
47K
LINE_LIN
47K
PBR
PBL
MIC
C2227
R2262
HPR
50V10
3.3K
KA_ROUT
HPL
LED9V
R2967
88
: MAIN SIGNAL LINE
: PLAYBACK SIGNAL LINE
: RECORD SIGNAL LINE
R2631 R2630
0 0
R2208
100K
R2110
100K
R2855
1K
R2854 R2856
27K 1K
C2855 R2857
50V4.7 56K
C2125
R2135
47P
22K
12K
C2124
R2137
100P
22K
R2136
10K
0
8 9 10 11
-VCC
0
FL
IC2816
C0ABCB000052
QUAD OP-AMP
FR
+VCC
7 6 5 4
R2236
10K
R2238
22K
C2222
R2633 R2634 R2237 100P
C2223
0 0 22K
47P
C2226
R2244
0.15
12K
C2129
C2301
6800P 0.15
100K
C2203
R2209
50V47
2.7K
LINE_RIN
C2105
R2111
50V47
2.7K
LINE_LIN
C2126
47P
C2147
0.1
C2127
R2138
10K 1
12 13 14
R2139
FL
100K
R2240
FR
100K
3 2 1
C2225
1
R2239
10K
C2224
47P
R2241
12K
R2143
12K