Panasonic SA-VK460GS Service Manual page 86

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT
SCHEMATIC DIAGRAM - 8
: -B SIGNAL LINE
B
MAIN CIRCUIT
: +B SIGNAL LINE
B4
D2911 B0ACEL000004
B2
B3
TO MAIN
SECTION (3/4)
Q2502
B1GFECYY0001
MUTING SWITCH
R2142 1.5K
C2142
C2141
1 1
R2141
2.7K
B5
1 2 3
Q2502 R2145
10K
6 5 4
B7
C2242 1
B6
C2241 R2241
R2243 100K
1 2.7K
R2245
10K
MUTE_A
R2501 2.2K
AGND
B8
Q2501
W2940
B1GDCFJJ0047 0
MUTE_A SWITCH
15 16 17
: MAIN SIGNAL LINE
: AM / FM SIGNAL LINE
W2944
0
C2301
10P
R2303
C2302
150K
47P
4 3 2 1
IC2804
C0AABA000009
OP-AMP
5 6 7 8
C2402
R2532 R2403
47P 150K
0
R2402 C2401
3.3K 10P
B1GFECYY0001
R2152
680
L_OUT
C2151
Q2142
16V10
B1ABCF000176
AGC CONTROL R2172
Q2143
R2146
5.6K
Q2366
AGND
r
R2246 D2241
R2249
5.6K B0ACEL000004 2.2K R2253
1.5K
Q2242
R2272
B1ABCF000176 Q2243
AGC CONTROL
R2252 R_OUT
C2251
680
16V10
Q2243
B1ABEB000002
C2294
MUTING SWITCH 50V1
Q2143
B1ABEB000002
MUTING SWITCH
18 19 20
TO MAIN
SECTION (2/4)
-9V
HP_L
+9V
HP_R
Q2366
MUTING SWITCH
560
C2166
R2167 R2166
1000P 10
10
4 5 6
R2169 R2168
10
10
C2266 R2269 R2268
3 2 1 1000P 10 10
560
W2975
R2267
R2266
0
10
10
R2291
2.7K
R2297
R2199
R2299
6.8K
15K 15K
R2292
0
21 22 23
86
1/4 2/4
SA-VK460GC/GCS/GCT/GS
3/4 4/4
MAIN CIRCUIT
24 25 26
I
J
K
L
M
N
O
P
27 28