Main Circuit - Panasonic SA-AK631GCP Service Manual

SA-AK631GCP
SCHEMATIC DIAGRAM - 5
: +B SIGNAL LINE
: -B SIGNAL LINE

MAIN CIRCUIT

C2751
R2270
R2170
1
1
R2266
R2268
33
33
R2267 R2171
R2269 R2271
33 3.3K
33 3.3K
C2266
1000P
IC2805
C0ABBB000244
DUAL OP-AMP
C2251
16V10
R2533 R2513
10K
4.7K
R2514
C2522
100K
1
8
R2534
1.5K
R2539
100K
1
C2523 R2517
R2516
1
1K
R2535
R2515
33K
8.2K
BLKCK
B1ABCE000016
CDSTAT
R2920 R2921
4.7K 4.7K
SW5V
MCLK
MDATA
MLD
R2927
4.7K
CD_RST
C2906 1000P
R2931 10K
R2922
R2930 10K
10K
R2929 10K
R2928 10K
RESTSW
: CD SIGNAL LINE
: MAIN SIGNAL LINE
36 35 34 33 32 31
R2006
C2752
0
0.1
0.1
R2401
47K
D2241
R2166
R2168
B0ACCK000005
33
33
R2167 R2149
R2169 C2151
33 33 16V10
2.2K
C2166
1000P
R2146
1K
R2301
47K
C2520
C2511
0.01
0.022
R2512
R2511
0
220K
7 5
6 8
IC2805
2 3 4 1
C2301 R2303
10P 330K
100K
R2304
82K
R2302
15K
Q2906
Q2906,Q2907 R2919
4.7K
SWITCH
Q2907
R2925
4.7K
15 14 13 12 11 10 8
16 9 7 6
TO
CD SERVO CIRCUIT
(CN7002) ON
SCHEMATIC DIAGRAM-2
TO
PANEL CIRCUIT
(CN6601) ON
SCHEMATIC DIAGRAM-10
30 29 28 27 26 25 24 23 22 21 20 19
18
Q2142,Q2242
R2245
B1ABCE000016
Q2242
10K
AGC CONTROL
R2246
R2247
C2245 1K
100K
16V10
R2248
6.8K
R2249
2.2K
R2145
Q2142
10K
Q2501
B1GDCFJJ0047
MUTING CONTROL
C2401
10P
R2403 C2402 R2532
330K 47P 0
R2404
82K
7 5
6
IC2804
IC2804
C0AABA000009
DUAL OP-AMP
2 3 4
C2302
C2521
47P
0.01
C2203
1000P
C2102
0.1
C2202
0.1
R2102
1.8K
R2202
1.8K
R2201 R2101
1.2K 1.2K
C2201 C2101
1 1
C2901
0.1
R2933
0
D2904
B0EAKM000117
5 4 3 2 1
CN2801
66
16 15 14 13 12 11 10 6 4 3
17 9 8 7 5
C2242 R2241 C2241
1 1
2.7K
Q2571
R2243
100K
6 1
B1GFGCAA0001
R2242
R2142
22K
22K
5 2
R2143
100K
4 3
R2141
C2142
2.7K
1
R2503
R2502 N
C2501
150K
56K
50V2.2
R2501
2.2K
R2402 15K
C2527 1
R2520 C2526
R2538
10K 220P
2.2K
7 5
8 6
R2519
18K
IC2806
C0ABBB000244
DUAL OP-AMP
2
1 3 4
R2522 R2523
C2512
10K 100K
0.47
C2513
0.1
C2103
1000P
R2908
R2907
330
1K
D2901
B0ADCC000002
Q2902
R2901 C2903
10K 0.01
R2903
15
R2902
Q2901
12
B1ACKD000005
SWITCH
Q2902
B1AACF000064
SWITCH
CN2806
2
1
C2753
0.1
C2999
0.1
CONN
OUT2
Q2571
MUTING SWITCH
OUT1
C2141
1
CONN1
-9V
MUTE_A
CONN
CONN3
R2521
10K
CONN4
C2525
1
R2518
100K
IC2806
SUB1
RCH
+9V
LCH
CD8V
SW5V
R2932
0
C2904
16V100
R2909
2.2K
R2910
330