MA-970S
BBK
更 改更 改 单 号签 名日 期
设 计审 核批 准
第 张共 张版次：
标 准 化
数 量
东莞市步步高视听电子有限公司
1
4-Oct-2005
张广胜
1
0.0
A
B
C
D
E
F
A
B
C
D
E
F
123456
123456
1
2
3
4
5
6
7
XS106
CON7
L
R
SL
GND
SR
C
SW
R121
4.7K
R104
22K
R122
4.7K
R105
22K
R123
4.7K
R108
22K
R125
4.7K
R110
22K
R124
4.7K
R109
22K
R126
4.7K
R113
22K
C110
10u/16V
C111
10u/16V
C112
10u/16V
C116
10u/16V
C117
10u/16V
C118
10u/16V
C113
10u/16V
C114
10u/16V
C115
10u/16V
C119
10u/16V
C120
10u/16V
C121
1u/16V
RST/Vpp
1
(RXD)P3.0
2
(TXD)P3.1
3
XTAL2
4
XTAL1
5
(INT0)P3.2
6
(INT1)P3.3
7
(T0)P3.4
8
(T1)P3.5
9
GND
10
Vcc
20
P1.7
19
P1.6
18
P1.5
17
P1.4
16
P1.3
15
P1.2
14
P1.1(AIN1)
13
P1.0(AIN0)
12
P3.7
11
N100
AT89C2051
3
2
1
8 4
N105A
IC4558
C122
22u/16V
R127 100
R149100K
R150
100K
R151 100K
VD100 1N5404
VD101
1N5404
VD102
1N5404
VD103
1N5404
1
2
XS100
CON2
C100
4700u/35V
C101
104/100V
+9V
+9V
5
6
7
N105B
IC4558
OUT+
1
GND1
2
VCC1
3
OUT2-
4
MODE2
5
IN2+
6
SGND
7
IN1+
8
IN3+
9
MODE1
10
SVR
11
IN4+
12
CIV
13
OUT3-
14
GND2
15
VCC2
16
OUT4+
17
N106
TDA8947J
IN2+
1
OUT2-
2
CIV
3
IN1+
4
GND
5
SVR
6
MODE
7
OUT1+
8
VCC
9
N101
TFA9843J
IN2+
1
OUT2-
2
CIV
3
IN1+
4
GND
5
SVR
6
MODE
7
OUT1+
8
VCC
9
N102
TFA9843J
R107
22K
R147
100K
R106
2.7K/0.25W
R138
47K
R141
1K
R140
270
R153
47K
R155
100K
R152
100K
R156 150K
R144
1K
R139
1K
R112
100K
C151
223
C152 182
C140
472
C142
472
C139
472
C138
472
R148
100K
R111
1K
R102
22K
R114
4.7K
R115
4.7K
R116
4.7K
+5V
R145
1K
R146
10K
C137 0.47u
1
2
3
4
5
6
7
8
9
10
11
12
XS105
CON12
R132
10
R134
330
R133
330
R135
330
R136
330
R117
4.7K
R119
4.7K
R118
4.7K
R120
4.7K
R101
270/1W
VD104
9.1V
C103
473
C102
220u
R100
270/3W
VD105
5.1V
C104
473
C108
100u
C109
4.7u/50V
C123
103
C124
30P
C125
30P
C106
473
C107
473
G100
4M
+5V
+9V+22V
+5V
R130
100
R131
100
C173
0.1u
C135
0.1u
C129
0.1u
C132
0.1u
C136 1u
C145 100u/25V
C149 47u/35V
C156
220u/25V
C150 22u
C148
100u/35V
C147
100u/35V
C153
220u/25V
C157
220u/25V
C155
220u/25V
C154
220u/25V
C144 100u/25V
R143
100K
C163
22u/16V
C134 0.1u
LRM
R159
1/0.5W
+22V
R157
1/1W
C128
104
VD108
1N4148
VD107
1N4148
VD106
1N4148
P_SCM
+22V
OUT/SR
OUT/SL
OUT/C
OUT/SL
OUT/SR
OUT/C
OUT/L
OUT/R
OUT/L
C105
473
R142
1K
C146
22u/25V
C143100u/25V
+22VOUT/R
1
2
3
4
5
6
7
XS107
CON7
1
2
XS104
CON2
R160
1/0.5W
R161
1/0.5W
R162
1/0.5W
R158
1/0.5W
C160
104
C158
104
C159
104
C161 104
C162
104
P_LRM
FL100
T6.3AL 250V
R154
47K
R
R
L
SL
SR
R129
10K
R128
4.7K
SR
SL
L
R
C
+5V
V100
9014
R103
18K
V101
9015
V102
9015
V103
9015
V104
9015
C164
10u/16V
R164
100K
R163
100K
C167
10u/16V
R165
47K
R166
100K
C168
22u/50V
C165
103
C166
10u/16V
C169
1u/16V
C170
472
V106
9014C
V105
S8050
R168
100K
VD109
5.1V
R167
10K
C172
4.7u/50V
+22V
VD111
1N4004
VD112 1N4148
L
SR
SL
C
SW
MUTE1
V110
S8050
R170
10K
R169
10K
P_SCM
R171
0
P_LRM
V107
9014
V108
9014
C133
104
VD115
1N4148
VD114
1N4148
MUTE1
C131
104
P_LRM LRM
MUTE1
C130
10U/16V
R172
100K
C174 1u/16V
R173
10K
R174
10K
V109 2N5401
R175
22K
R176 22K
VD116
3.3V
R177
4.7K
VD113
1N4148
VD110
1N4148
C127 103
GND
Vr
Vr
C
+5V
RE
GND
P_SCAN
OUT1
1
TRE1
2
BASS11
3
BASS12
4
BASS13
5
SELL
6
FLIN
7
NC
8
FLOUT
9
FROUT
10
COUT
11
RLO
12
RRO
13
SBWO
14
NC
15
SBW
16
NC
17
RR
18
NC
19
RL
20
NC
21
C
22
VREF
23
FRIN
24
SELR
25
FR
26
NC
27
FL
28
BASS23
29
BASS22
30
BASS23
31
TRE2
32
FRT
33
FLT
34
MUTE
35
TIM
36
VDD
37
CL
38
DI
39
CE
40
VSS
41
OUT4
42
OUT3
43
OUT2
44
N103
LC75347E
L
R
SL
SR
C
SW
C175
1U/50V
C177 473
C176 473
C178
682
C183 333
C181 473
C180
473
C182
682
C186
102
C185
102
C184
102
L100
L
C179
1U/50V
R178
4.7K
1
2
X102
CON2
1
2
X103
CON2
1
2
X101
CON2
FL101
T2AL 250V
C126
472
MA-970S 功放板
Loading...