BBK AV230 Service Manual signal board
F
30-Mar-2004
李林存
设 计 审 核 批 准
更 改 更 改 单 号 签 名 日 期
LINE OUT
123456
数 量
标 准 化
AV230
信号板原理图一
BBK
第 张 共 张 版次
1
东莞市步步高视听电子有限公司
1
1.0
SW-OUT
XC100
P_BURST
XP20
1
2
3
4
5
6
7
8
9
10
CON10
DISP
OK-L
OK-R
P_KM
C1-1
P_SCART
X100
SCART-03
XS103
16PIN
A
XS9
SWM
C135
103
V109
1
2
L1
3
R1
4
C1
5
SL1
6
SR1
7
From AMP Board
CON7
XS13
1
P_RLY
2
P_RC
3
P_LRM
4
P_SCM
5
CON5
VD100
1N4148
VD101
1N4148
VD102
DIST
1N4148
VD103
1N4148
VD104
1N4148
R105
47K
P_VCK
P_VDA
P_VST
A+5V
+12V
-12V
+12V +12V
C124
47u/16V
C125
47u/16V
C137
C136
103
103
V110
2N5551
VD106 1N4004
VD107 1N4004
123456
DIST
XP22
1
2
3
4
5
6
7
8
9
10
CON10
C121
47n
C122
47n
-12V-12V
C138
103
XS24
1
2
3
CON3
FAN
FAN
R167
47K
XS23
1
2
3
CON3
-12V
N100A
4558
+12V
-12V
N101A
4558
+12V
-12V
N102A
4558
+12V
-12V
N103A
4558
+12V
-12V
N104A
4558
+12V
2
GND
B
1
C131 10u/16V
1
C132 10u/16V
1
C139 10u/16V
1
1
Vin
R1
P_RLY
P_RC
P_LRM
P_SCM
R111 560
R112 560
R113
L1
R142 39K
R145 39K
560
R104
47K
C1
P_VCK
P_VDA
P_VST
R158
SR1
100
R161
SL1
100
VD108
1N4148
R168
S8050
10/0.5W
1
C128
47n
C130
2200u/16V
C
C103 47P
R132 27K
N100B
4558
6
5
6
5
6
5
6
5
6
5
C105 47P
R133 27K
C107 47P
R134 30K
C109 47P
R135 27K
C110 47P
R136 27K
N101B
4558
N102B
4558
N103B
4558
N104B
4558
7
7
7
7
7
C113
4.7u/16V
C114
4.7u/16V
C118
4.7u/16V
R121 20K
R137 18K
R138 15K
R123 20K
R140 18K
R141 15K
R124 47K
R108 22K
R144 15K
R125 47K
R146 15K
R126 47K
R150 15K
8
7
6
C143
C144
47n
47n
C142
100u/16V
C129
47n
5
2
3
2
3
2
3
2
3
2
3
3
C134
220u/16V
C104 47P
R101 47K
8 4
C106 47P
R102 47K
8 4
C108 47P
R103 47K
8 4
C111 101
R106 47K
8 4
C112 101
R107 47K
8 4
N107
7805
Vout
N105 CD4051
XCOM
VDD
VSS
INH
VEE
A(0)
B(1)
C(2)
RH-357508
C145
103
VD110
1N4148
VD105
1N4148
C126
0.1u
L101
C100
10u/16V
D
R120 22K
R115
100K
C101
R116
100K
VD111
1N4148
VD109
1N4148
X0
X1
X2
X3
X4
X5
X6
X7
10u/16V
13
14
15
12
1
5
2
4
D+5V
C133 0.47u/50V
1
2
3
R127 39K
R128 22K
R122 39K
R129 20K
R130 20K
R131 20K
N106 HT82V733
OutN
VDD
AUDin
OutP
Vref
VSS4CE
NC
E
1
SWM
R100
2
47K
D+5V
R117
4.7K
R169 3K
P_BURST
C115
22u/16V
SR-1
SL-1
C-1
C-1
R-1
R-1
L-1
L-1
SW1
DISP
OK-L
OK-R
P_KM
C1-1
P_SCART
V106
9014
R157
R154
2.2K
47K
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
S_OK
7
8
9
10
11
ECA
12
ECB
13
ECC
14
DLC
15
DLB
16
DLA
C116
103
XS102
12PIN
1
2
3
4
5
6
7
8
9
10
11
12
C102
103
C127 0.1u
AUDout
DGND
VD+5V
VOICE_C
VOICE_B
VOICE_M
VOICE_A
FIELD
C117
103
XP19
1
2
3
4
5
6
7
8
CON8
R155 15K
R166 100
R165 100
R164 100
R149 470
R148 470
R114 470
R147 470
GND
R'
L'
SL'
SR'
C'
SW'
R109
1K
R152 2.2K
R110 1K
R151 2.2K
R156 15K
C140
561
2N5551
P_HOLD
P_LDA
P_BCK
V107
2N5401
V100
V102
R139
S8050
10K
R162
10K
+12V
V108
2N5401
V101
S8050
R163
10K
V104
S8050
V103
R153
4.7K
22u/16V
2N5401
V105
S8050
C119
R143
10K
3
16
+6.8V
8
6
R160
1K
7
-12V
N108A
4558
+12V
P_HOLD
P_LDA
P_BCK
-6.8V
11
10
9
1
VD+5V
R159 15K
C141 561
2
3
8 4
F
E
D
C
B
A
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