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1
H
G
DL2
47P
F
R77
22K
R78
6
_
IC6B
7
15K
5
+
MC33078
10U NP
E
+5VA
CN2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN-7PX2-F
FROM 110018 INPUT PCB
R79
47E/5W
D
1
C11
2
3
4
5
6
6P/P=3.96
C12
CN1
C
B
A
1
2
-0.5V
TR10
2N5551
R29
R46
12K
4K7
D7
-15V
1N4148
C31
R76
R75
1K
47K
4N7
-15V
R44
2
1
68K
R80
C36
3
IC6A
0.2V
1K
MC33078
+15V
33P
C35
100K
R74
D27
D26
4148
4148
R59
68K
+15V
R40
D5
12K
R39
4K7
1N4148
-15V
+15V
TR12
R69
2N5401
0.6V
100E PTC
C32
2200U/63V
+VCC2
+VCC1
IC4
7815
1
3
Vin
Vout
+15V
IC2
7805
+5VA
1
3
Vin
Vout
C36
D21
10/25V
27.0K
C33
1000U 6.3V
C37
DL2
10/25V
2
1
1
Vin
Vout
-15V
IC3
7915
-VCC1
-VCC2
2
R25
R28
820E
R57
68E
R34
12K
8K2 2W
TR9
NJE350
7.6V
D13
C15
1N4002
100P
20.2V
D25
D14
R66
1N4002
7V5 1W
C27
8K2
0.001U
0.0047U
C1
R10
1K5
+1.4V
TR1
C25
10/50V
R9
MJE802
560E
VR1
470E
-1.4V
470E
R31
0.1U
C16
C13
R21
0.0047U
8K2
D10
7V5 1W
D12
C14
1N4002
-20.2V
100P
D11
TR7
MJE340
-7.6V
1N4002
R23
R41
R22
820E
R24
12K
8K2 2W
68E
DL1
47P
R71
R2
15K
R70
47K
-15V
IC5A
2
C2
R11
R4
1
3
1K
10K
MC33078
C6
1U 50V NP
+15V
R3
R32
22K
R73
33K
10E
6
_
IC5B
7
5
+
MC33078
+15V
R62
10K
R8
R61
R46
47K
10K
150K
-7.7V
TR22
BC847
C22
1U/50V
TR23
BC847
R60
47K
C28
R64
TR24
1000U/6V3
4K7
BC847
OFFSET PROTECTION
03-3
3
C21
R33
TR15
1K
NJE15031
470P
R58
0.0047U
47E
C23
R56
24V
TR21
8K2
R43
R59
MJE340
2K2
47K
C10
C39
TR2
330P
2SC5200
TR4
or NJL21184
220P
TR5
MJE340
MJE15030
R20
R19
R17
R18
470E
10E
4E7
12K
R32
R14
R26
R16
4E7
470E
10E
12K
C40
TR13
C17
TR6
2SA1943
330P
MJE350
MJE15031
or MJL21193
220P
R17
2K2
R52
TR19
MJE350
8K2
-24V
C25
R51
0.0047
47E
R53
47K
C24
R55
470P
1K
R42
390E
IC1
TDA7294
R1
+VCC1
C3
22K
22UF/50V
6
2
S1
14
3
5
HIGH OUT +
10
4
S2
MUTE
11
9
ST-BY
R12
GND
D1
TDA7294
10E 0.5W
4148
C5
-VCC1
C4
0.1U
R12
R21
22K
10K
SOFT START
R35
10K
R47
TR18
BC857
10K
TR11
8.84V
BC32725
14.2V
D8
R36
10K
1N4148
9.4V
R30
TR17
C23
BC857
10K
R37
R48
470E
330E
8.6V
R63
D17
10K
C7
R49
33K
0.1U
RL1
OZ-SS-124LM1
DC 24V 16A
TR25
-15V
BC857
Title
SR400A
Size:
A2
Date:
2004/08/27
File:
SR300A
3
4
第
1
版
+VCC2
R27
390E
TR8
D4
TIP36C
or SIMILAR
1N4002
D14
+VCC1
6A2
D24
1N4002
R15
R13
0E2 5W
D17
1N4002
TR3
D3
-VCC1
6A2
TR20
D5
MJE15030
1N4002
TR14
TIP35C
-VCC2
Hi SPEAKER
TR16
BC857
S4
LOW OUT+
LOW SPEAKER
S3
GND
Number
Revision
P-313120-1-SR400A
VER1.0
Sheet of:
1/1
Drawn By:
MO GUO ZHU
4
H
G
F
E
D
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B
A
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