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31-Mar-2004
卢建强
设 计 审 核 批 准
更 改 更 改 单 号 签 名 日 期
F
E
D
C
B
A
123456
数 量
标 准 化
AV230
功放板电原理图
BBK
第 张 共 张 版次
5
东莞市步步高视听电子有限公司
12
0.0
XP9
CON7
XP13
CON5
123456
C103
47u/100V
R1052KR106
2K
C101
R101
10K
V101
VD101
1N4148
SWM
1
L1
2
R1
3
C1
4
SL1
5
SR1
6
GND
7
GND
1
P_Rly
2
P_RC
3
P_LRM
4
P_CSM
5
C121
22u/16V
S8050
R161
4.7K
V115
2N5401
R162
10K
V116
S8050
R103
1K
R102
100K
R131
10K
R133
1K
R132
100K
10u/16V
C111
10u/16V
V102
2N5551
2N5551
C104
220p
R107 47
100u/16V
V104
2N5551
C107
47u/100V
R1352KR136
V117
2N5551
C114
220p
R137 47
100u/16V
V119
2N5551
C117
47u/100V
R110
510
R140
510
R108
C105
2K
2N5551
R138
C115
R104
47K
C113
47u/100V
R134
47K
V103
47
R109 1K
VD102
1N4148
VD103
1N4148
V118
47
R139 1K
VD105
1N4148
VD106
1N4148
33p/500V
R111
33K/0.5W
2N5551
33p/500V
R141
33K/0.5W
2N5551
C108
V106
R115
2.2K
R112
1K
C118
V121
R145
2.2K
R142
1K
Vs+
R163
10K
R165
4.7K
R166
4.7K
C122
22u/16V
C123
22u/16V
V130
2N5401
R164
33K
Vs+
C127
R167
4.7K
C124
10u/16V
R169
V131
47K
S8050
C125
R168
10K
4.7u/16V
R170
820
53
47n
1
2
R171
33K
C126
68p
4
N104
LM1875
C128
47n
Vs-
R114 4.7K
R144 4.7K
220/0.5W
R113
150
V105
2N5401
V107
2N5551
R116
150
220/0.5W
R143
150
V120
2N5401
V122
2N5551
R146
150
R117
R125
220/0.5W
R147
R155
220/0.5W
V132
2SC5248
R121
C109
33K
47n
V133
2SA1964
R120
100/0.25W
R122
100/0.25W
2SC5200
R126
0.25/7W
R127
0.25/7W
V113
2SA1943
V112
R128
4.3K
R129
1.5K
0.47u/16V
R130
4.3K
Vc-
2SC5200
R156
0.25/7W
R157
0.25/7W
V128
2SA1943
Vc+
V127
R158
4.3K
R159
1.5K
0.47u/16V
R160
4.3K
V134
2SC5248
R150
100/0.25W
R151
C119
33K
47n
V135
2SA1964
R152
100/0.25W
Vc-
C131
4.7u/16V
R172 47K
R176
47K
C132
4.7u/16V
C158
C157
1u/50V
471
471
C130 1u/50VC129
VD104
1N4148
V114
2N5551
C110
N101
R183
Vs+
47/3W
220u/35V
C147
VD107
1N4148
V129
2N5551
C120
C155 47p
N105
LM1876
R174
820
7
8
R173 1K
6
MUTEA
11
MUTEB
9
STAN-A
14
R177
STAN-B
1K
13
12
R178
820
C156 47p
R184
Vs-
47/3W
R182 33K
R175
33K
OUTA
A
VDDA
GNDA
VDDB
GNDB
VEE
OUTB
B
R179
33K
R185 33K
220u/35V
3
C134
104
2
5
15
C135
10
104
4
C136
104
1
L7812
1
C146
Vin
2
1
2
Vin
N102
L7912
C139
47n
Vs+
Vs+
C159
10u/100V
Vs-
C140
47n
GND
GND
Vout
Vout
C141
4700u/35V
C142
4700u/35V
100u/16V
3
3
C149
100u/16V
C148
VD111
1N5404
VD112
1N5404
VD113
1N5404
VD114
1N5404
C150
47n
C151
47n
L2
R2
C2
SL2
SR2
GND
FL101
T6.3A250V
C143
C144
FL102
T6.3A250V
Vc+
XS7
SWM
1
Rly0
2
P_RC
3
Over
4
CON4
XP6
+12V
1
DGND
2
DGND
3
-12V
4
CON4
XS8
1
2
3
4
5
6
Vc+
7
8
9
Vc-
CON9
XS5
0.1u
0.1u
CON3
1
2
3
F
E
D
C
B
A
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