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SA-HT720GCP
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
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
33P
50V4.7
C2226
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
6.8K
6.8K
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
62
INA2
OUTFL
63
INB1
FOUT3
64
INB2
FW3
65
INC1
OUTFR
66
INC2
MIX IN
67
IND1
AGCR
68
IND2
AGCC
69
INE1
GAOUT
70
INE2
IC2011
FW2
C1BB00000845
71
FPIT2
ASP IC
72
EXM1
FW1
73
EXM2
FOUT1
74
OUTC
75
INFLA
OUTCN
76
INFRA
OUTLS
77
INCA
OUTLSN
78
INLSA
OUTRS
79
INRSA
OUTRSN
80
INSUBA
OUTSUB
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
R2162 6.8K
C2613
0.01
C2161 0.1
C2162 0.033
40
C2149 10V1
R2144 3.3K
39
R2261 6.8K
38
C2261 0.1
C2262 0.033
37
C2249 10V1
R2244 3.3K
36
35
R2892 0
R2893 33K
34
C2605 0.47
R2610 3.3K
33
C2606
C2607
32
0.33
0.33
C2618 0.068
31
R2625 5.6K
R2608 82K
R2609 56K
30
R2611 56K
C2609
6800P
29
R2613
C2608
0.12
3.3K
C2610
50V10
28
R2501 47K
R2502 8.2K
C2502
R2503
27
50V1
3.3K
26
C2250
50V1
R2303 47K
R2304 8.2K
C2302
R2305
25
10V1
1K
24
R2403 47K
R2404 8.2K
C2403
R2405
23
1
1K
22
21
R2605
R2606
R2612
C2603
C2264
R2178
2.2K
12K
10K
50V10
50V10
27K
R2264
R2164
R2278
27K
39K
27K
R2604
27K
(DS2:47K)
C2270
C2175
0.068
0.068
C2150
50V1
R2320
10K
R2321
22K
R2875
C2800
27K
50V4.7
R2876
56K
Q2027
B1GDCFGA0014
Muting Control
R2877
1.8K
C2228
50V10
48
R2505
C2506
C2503
1K
0.01
0.033
R2508
C2504
R2504
C2505
1.8K
0.1
6.8K
50V1
R2506
33K
Q2500
R2624
5
6
7
8
B1GDCFGA0014
100K
Muting Control
IC2015
C0ABBB000118
Buffer Amp
R2509
56K
4
3
2
1
C2615
5600P
R2511
R2614
R2615
2.2K
1K
100K
C2612
R2616
R2617
C2616
R2618
50V4.7
18K
18K
16V10
1K
R2510
C2508
C2611
27K
50V4.7
50V4.7
R2311
R2406
R2306
2.2K
100K
100K
R2255
100K
Q2104
B1GFGCAA0001
Muting Switch
R2312
2.2K
R2245
R2246
C2253
R2247
R2249
6.8K
33K
16V100
22
22
C2251
C2252
R2248
R2250
R2251
100P
47P
22
22
4.7K
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
R2145
R2146
C2155
R2151
R2153
6.8K
33K
1000P
4.7K
10
SFC SUR
R2219
R2226
C2229
C2230
R2220
R2218
12K
100K
3300P
0.15
12K
R2222
C2233
22K
22K
0.01
C2231
C2232
47P
100P
R2225
2.2K
8
9
10
11
-VCC
Q2101
B1GFGCAA0001
Muting Switch
+VCC
R2125
2.2K
7
6
5
4
R2119
C2130
R2120
12K
0.15
12K
C2131
C2132
47P
100P
R2126
C2129
C2128
R2118
100K
6800P
50V1
22K
R2122
22K
C2133
0.01
SA-HT720GCP MAIN CIRCUIT
R2619
2.2K
Q2601
B1GFGCAA0001
Muting Switch
R2623
100K
C2404
R2407
50V0.33
100
RSURR
LSURR
C2303
R2307
50V0.33
100
R2254
2.2K
Q2200
B1GFGCAA0001
Muting Switch
R2154
2.2K
R2155
D2102
100K
B0ACCK000005
R2253
10
HP R
R2252
2.7K
Q2102
B1GFGCAA0001
Muting Switch
R2152
2.7K
R2221
1.2K
R2223
R2224
10K
10K
C2234
C2235
100P
47P
12
13
14
IC2012
C0ABCB000052
Buffer Amp
3
2
1
C2134
C2135
100P
47P
R2123
R2124
10K
10K
R2121
1.2K
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