Panasonic SA-AKX72PH Service Manual page 104

SCHEMATIC DIAGRAM - 8
B
MAIN CIRCUIT
: +B SIGNAL LINE
TO MAIN
CIRCUIT (5/8)
P1
10
R2224
0
6
AGND
R2225
0
9
C2152
16V47
7
8
C2145
R2186 R2190 R2199 R2201
16V47
C2147 C2149
18 18 18 18
1000P 1000P
R2208
560
R2191 R2200 R2202
R2187 18 18 18
18
QR2002
B1GDCFGA0018
R2188
MUTING CONTROL
220
MUTE_A
C2146
6.3V47
UP_DGND
HP_L
R2210
0
B1GFGCAA0001
R2204
560
HP_R
15 16 17 18
: -B SIGNAL LINE : CD/DVD AUDIO INPUT SIGNAL LINE : AUX/MIC/TUNER/MUSIC PORT AUDIO INPUT SIGNAL LINE
R2092 C2107
0 0
C2096 R2081
0 0
C2165
0.1
C2166
0.1
C2098 R2083
0 0
R2090 C2108
0 0
3 4
R2209
560
2 5
1 6
Q2013
B1GFGCAA0001
MUTING
Q2012
R2222
MUTING 47K
3 4
R2207
560
2 5
R2223
47K
1 6
R2217
0
19 20 21
: AUDIO OUTPUT SIGNAL LINE
TO MAIN
CIRCUIT (2/8)
R2268
2.7K
R2241 R2244 C2179 C2183 C2181 R2264 R2269
33K 4.7K 10 6800P 0.68 10K 39K
R2238
1K
R2256 R2258 C2185 R2266
12K 15K 10 6.8K
Q2016
B1ABCF000176
C2168
5 6 7 8
0.15 AMPLIFIER
V+
IC2009
Q2017
C0ABBA000159
B1ABCF000176
OP-AMP
C2169
AMPLIFIER
0.15
GND
R2257 R2259
R2239
4 3 2 1 C2186 R2267
1K 12K 15K
10
R2242 R2245 C2180 C2184 C2182 R2265 R2270
33K 4.7K 10 6800P 0.68 10K
22 23 24
104
R2272
2.7K
C2205 R2291
0.068 4.7K
C2189 0.1
C2208
4700P
C2190
25V330
R2308
1.8K
C2212
0
R2292 R2320
10K 5.6K
R2293 R2321
10K 5.6K
C2213
0
6.8K
R2305
1.8K
39K
C2209
4700P
C2204 R2290
0.068 4.7K
CIRCUIT (7/8)
1/8 2/8 3/8 4/8
5/8 6/8 7/8 8/8
SA-AKX72PH/PN MAIN
25 26 27
P1
FR_H
FR_L
FL_L
FL_H
TO MAIN
CIRCUIT
28