Panasonic SA-HT885WGC Service Manual page 63

SCHEMATIC DIAGRAM-5
MAIN CIRCUIT
:+B SIGNAL LINE
C2163 R2163
50V3.3 1K
FRONTL
C2263 R2263
50V3.3 1K
FRONTR
R2262
22K
R2162 C2162
3.9K 0.15
C2261 C2262
C2161
0.1 0.15
0.1
R2161
C2149 R2144 22K
1 1.5K
R2261
3.9K
C2249 R2244
1 1.5K
R2892 R2893
18K 15K
C2605
0.47
C2606
0.12
R2611
56K
C2608
0.1
C2609
5600P
R2604 R2403 R2303 R2501
33K 39K 39K 47K
R2603 R2404 R2304 R2502
15K 6.8K 6.8K 6.8K
C2264
50V10
C2621 R2639 R2663
33P 1.8K 3.9K
R2642 R2638
68K 68K
1 2 3 4
IC2601
C0ABBB000230
Buffer Amp
8 7 6 5
C2630
50V10
R2636
10K
R2657
100K
C2633 R2656
+7.5V
220P 4.7K
R2661 R2658
27K 2.2K
R2659
Q2607
56K
C2628 B1ABCF000176
R2655 R2644
50V1
10K Buffer Amp 27K
C2637
Q2609
50V4.7
R2635
B1GDCFGA0018
C2631
R2654 C2619 10K
Level Control 50V4.7
10K 0.47
-7.5V
R2633 C2620 R2634 Q2605
100K 0.1 8.2K
B1GDCFGA0018
R2660
Muting Control
1.8K
HB LVL
12 13 14
:-B SIGNAL LINE :MAIN SIGNAL LINE
C2623 R2122
47P
22K
C2625 R2120 C2109
0.01 22K 47P
R2118 22K
C2703
R2121 C2624 C2110
50V1
22K 100P 100P
R2119 2.2K
14 13 12 11 10 9 8
-VCC
IC2016
C0ABCB000052
Buffer Amp
+VCC
1 2 3 4 5 6 7
R2219 2.2K
R2221 C2622 C2214
R2218 22K
R2613
22K 100P 100P
C2215 3.3K
0.01
C2213 R2222
R2220 C2209
47P 22K
22K 47P
C2610
50V10
+7.5V
R2264
R2164 C2603
33K 33K 50V10
R2178 22K
R2610
1.5K
R2278 22K
R2612
6.8M
R2605 2.2K
C2607 C2175 C2270 R2606
R2608 0.033 0.033
0.47 10K
150K
R2625
R2609 22K
56K
C2618
0.068
C2632
100P
R2651
C2635
12K
0.022
R2652
100K
R2640 R2664
0 3.9K
1 2 3 4
IC2602
C0ABBB000230
Buffer Amp
R2662
100K
8 7 6 5
R2637
1K
R2643
100K
Q2608 C2627 R2630
R2647
R2629
B1ABEB000002 3.3K 50V10 100K
33K
Level Control
Q2604 R2648
B1ABEB000002 R2631
10K
100K
Muting Switch
R2649 R2641
R2645 2.2K 3.9K
56K
C2636 R2627 R2632
50V4.7 100K 8.2K
R2646
1.8K
HB MUTE
+7.5V
-7.5V
15 16
C2506
0.01
R2615
100K
C2613
0.01
C2611 R2614 R2617
50V4.7 1K 33K
C2612 R2616 C2615
50V4.7 33K 5600P
4 3 2 1
IC2015
C0ABBB000230
Buffer Amp
5 6 7 8
R2506
33K
C2504 R2504
0.068 6.8K
R2305
C2503 1K
0.033
C2502 R2503
3.3K
50V1
C2302
1
C2403
1
C2250 R2245
50V1 6.8K
C2251 R2246 C2253
100P 33K 16V100
C2252
47P
+7.5V
5 6 7 8
IC2013
C0AABB000125
Headphone Amp
R2247 R2249
22
22
4 3 2 1
R2248 R2250
C2254 22 22
0.01
C2255
1000P
C2152
47P
C2151
100P
C2155
1000P
R2148 R2150
22 22
R2146 C2153
C2150 R2145 R2147 R2149
50V1 6.8K 33K 16V100 22 22
+7.5V
-7.5V
17 18 19
63
R2622 27K
-7.5V
C2617 50V2.2
R2619 R2620
2.2K 1.8K
R2624 100K
Q2600
R2621
Q2601 56K B1GDCFGA0018
B1GFGCAA0001 Muting Control
Muting Switch
R2510 27K
C2508 50V4.7
R2511 R2508
2.2K 1.8K
Q2500
R2509
56K
B1GDCFGA0018
Muting Control
R2623 100K R2310 27K
C2170 50V4.7
R2312 R2308
2.2K 1.8K
R2306 100K
Q2103
R2309
Q2104 56K B1GDCFGA0018
B1GFGCAA0001 Muting Control
Muting Switch
R2311
2.2K
R2406 100K
R2405
R2254
1K R2255 100K
2.2K
Q2200
B1GFGCAA0001
Muting Switch
R2167 12K
C2168 50V3.3
R2154 R2166
2.2K 1.2K
Q2105
R2168
22K
B1GDCFGA0018
Muting Control
R2155 100K
R2253
10
Q2102
B1GFGCAA0001 R2251
4.7K
Muting Switch
R2268 27K
C2267 50V4.7
R2152 R2266
2.7K 1.8K
Q2201
R2267
56K
B1GDCFGA0018
Muting Control
R2153
10
R2151 4.7K
R2252
2.7K
SA-HT885WGC/GS MAIN CIRCUIT
20 21
SA-HT885WGC / SA-HT885WGS
MUTE SUB
MUTE C
MUTE S
MUT FRNT
HP R
HP MUTE
+7.5V
-7.5V
22