Panasonic SA-HT720P Service Manual page 48

SA-HT720P / SA-HT720PC
SCHEMATIC DIAGRAM-4
MAIN CIRCUIT : +B SIGNAL LINE
TV L
TV R
VCR L
VCR R
AUX L
AUX R
TUN L
TUN R
DVD MIXL
DVD MIXR
R2111 R2211
100K 100K
C2120 1
EXT L
C2218 1
EXT R
R2116 100K
R2216 100K
DVDCNT
DVDSL
DVDSR
SUBW
SEL FL
SEL FR
R2173 R2272
15K 15K
R2112 C2121 C2127
10K 150P 50V4.7
DVDFL
R2169
8.2K
(DS2:
1.2K) C2123 R2114 R2115
50V10 10K 33K
R2113
C2124 C2125
10K
100P 33P
C2122
470P
+7.5V
C2126
0.01
5 6 7 8
IC2010
C0ABBB000118
Buffer Amp
4 3 2 1
-7.5V
C2225 C2227
C2226 33P 50V4.7
0.01
C2223 R2214
50V10 10K
R2212 C2224
10K 100P
DVDFR
R2213 R2215
R2269 C2222
10K 33K
1.2K 470P
C2221
150P
: -B SIGNAL LINE : MAIN SIGNAL LINE : FM/AM SIGNAL LINE
C2819 16V47
C2818 16V47
C2810 220P
C2809 220P
R2265 R2165
C2811 0.01
4.7K 4.7K
C2812 0.01
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
61 INA1 FW4 40
62 INA2 OUTFL 39
63 INB1 FOUT3 38
64 INB2 FW3 37
65 INC1 OUTFR 36
66 INC2 MIX IN 35
67 IND1 AGCR 34
68 IND2 AGCC 33
69 INE1 GAOUT 32
IC2011
70 INE2 FW2 31
C1BB00000845
71 FPIT2 30
ASP IC
72 EXM1 FW1 29
73 EXM2 FOUT1 28
74 OUTC 27
75 INFLA OUTCN 26
76 INFRA OUTLS 25
77 INCA OUTLSN 24
78 INLSA OUTRS 23
79 INRSA OUTRSN 22
80 INSUBA OUTSUB 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
R2172
0
R2603
20K
R2271
0
C2159 470P C2301 470P
R2159 47K R2301 3.3K
C2259 470P C2402 470P
R2259 47K R2401 3.3K
C2169 470P C2601 1000P
R2170 3.3K R2602 47K
R2163 R2263
1K 1K
C2163 C2263
50V 50V
3.3 3.3
R2506
33K
R2162 6.8K
C2613 R2614
0.01 1K
C2161 0.1 C2162 0.033
C2611
C2149 10V1 R2144 3.3K 50V4.7
R2261 6.8K
C2261 0.1 C2262 0.033
C2249 10V1 R2244 3.3K
R2406
100K
R2892 0 R2893 33K
C2605 0.47 R2610 3.3K
C2606 C2607
0.47 0.47 C2618 0.068
R2625 5.6K R2608 68K R2609 56K
R2611 56K
C2609 6800P
R2613
C2608 0.12
3.3K
C2610 50V10
R2501 47K R2502 8.2K C2502 R2503
50V10 3.3K
C2250 R2245
50V1 6.8K
R2303 47K R2304 8.2K C2302 R2305
10V1 1K
C2403 R2405
R2403 47K R2404 8.2K
1 1K
R2605 R2612 C2603
R2606 C2264 R2178
2.2K 10K 50V10
12K 50V10 27K
R2164
R2264 R2278
39K
27K 27K
R2604
27K
(DS2:47K)
C2270 C2175
0.068 0.068
C2150 R2145
50V1 6.8K
R2320
22K
R2321
22K
R2218
22K
R2875 C2800
27K 50V4.7
R2225
2.2K
R2876
56K
Q2027 R2125
2.2K
B1GDCFGA0014
Muting Control
R2877
1.8K
C2228
50V10
48
R2505
C2503 C2506
1K
0.033 0.01
R2508
C2504 R2504
1.8K
C2505
0.1 6.8K
50V1
Q2500
R2624
5 6 7 8
B1GDCFGA0014 100K
Muting Control
IC2015
C0ABBB000118
Buffer Amp
R2509
56K
4 3 2 1
C2615
5600P
R2511
R2615 2.2K
100K
C2612 R2616 R2617 C2616 R2618
50V4.7 18K 18K 50V10 1K
R2510 C2508
27K 50V4.7
R2311 R2306
2.2K 100K
R2255
100K
Q2200
Q2104
B1GFGCAA0001
B1GFGCAA0001
Muting Switch
Muting Switch
R2312
2.2K
R2155
100K
R2246 C2253 R2247 R2249
33K 16V100 22 22
C2251 C2252 R2248 R2250 R2251
4.7K
100P 47P 22 22
C2154
0.01
C2255
1000P
5 6 7 8
IC2013
C0AABB000125
Headphone Amp
R2148 R2150
4 3 2 1 22 22
C2151 C2152 C2153 R2147 R2149
100P 47P 16V100 22 22
C2254
0.01 C2155 R2151 R2153
R2146
1000P 4.7K 10
33K
SFC SUR
R2219 C2230 R2220
R2226 C2229
12K 0.15 12K
100K 3300P R2222 R2223
C2233
22K 10K
0.01
C2231 C2232 C2234
47P 100P 100P
8 9 10 11 12
-VCC
Q2101
B1GFGCAA0001
Muting Switch
+VCC
7 6 5 4 3
R2119 C2130 R2120
12K 0.15 12K C2131 C2132 C2134
47P 100P 100P
R2126 C2129
C2128 R2118
100K 6800P
50V1 22K
R2122 R2123
22K 10K
C2133
0.01
R2619
2.2K
Q2601
B1GFGCAA0001
Muting Switch
R2623
100K
C2404 R2407
50V0.33 100
RSURR
LSURR
C2303 R2307
50V0.33 100
R2254
2.2K
R2154
2.2K
R2253
10
HP R
R2252
2.7K
Q2102
B1GFGCAA0001
Muting Switch
R2152
2.7K
R2221
1.2K
R2224
22K
C2235
47P
13 14
IC2012
C0ABCB000052
Buffer Amp
2 1
C2135
47P
R2124
22K
R2121
1.2K