5
6
7
8
A
B
C
D
8
7
6
5
4
3
2
1
D
C
B
A
Design
Check
Approve
Date
Date
Date
Model:
Title:
Size
Sheet
Finish
Rev
File No:
Computer No
E1
10uF/16V
E2
10uF/16V
R1
2.2K
R2
2.2K
R41 68K
R44 68K
3
2
1
8
4
U4A
BA4560
5
6
7
U4B
BA4560
E3
22uF/16V
R9
620
R11
27K
C9
104
R13
2.2R
1
2
4
5
3
U1
UTC2030
C3
222
GND
GND
C5
333
GND
+VCC
-VCC
LOUT
R7
22K
E4
22uF/16V
R12
620
R10
27K
C10
104
R14
2.2R
1
2
4
5
3
U2
UTC2030
C4
222
GND
GND
C6
333
GND
+VCC
-VCC
ROUT
R8
22K
LIN1
+VCC1
-VCC1
R17
43K
C14
22K
R22
124
C15
22K
D2
5392
D4
5392
D1
5392
D3
5392
E10
2200uF/25V
E11
2200uF/25V
+VCC
GND
-VCC
GND
R29
100
R28
100
GND
E
E
7
2
2
u
F
/1
6
V
R26
330
R25
75K
C16
104
R27
2.2R
1
2
4
5
3
U3
TDA2030A
+VCC
-VCC
SUB AMP
E8
47uF
E9
47uF
GND
R24
22K
GND
GND
GND
GND
GND
SWIN1
1
3
2
VR1A
50K
4
6
5
VR1B
50K
GND
GND
GND
!
S1
6A(1A)250V
103/250VAC
!
!
!
R4
22K
R3
22K
R5
18K
R6
18K
RIN1
E6
0.1uF
SWOUT
1
2
3
4
5
JP1
TO MVOL
LIN
RIN
LIN
RIN
GND
RIN1
LIN1
1
2
3
4
5
JP2
TO MVOL
LIN
RIN
GND
RIN1
LIN1
S
W
IN
1
2
3
JP3
TO WVOL
SWIN
SWIN1
GND
1
2
3
JP4
TO WVOL
SWIN
SWIN1
GND
LED1
LED
R30
100
BG1
9014
R31
4K7
ZD1
5V6
R32
820
+VCC
GND
1
2
JP6
TO LED
1
2
3
JP7
GND
1
2
3
JP8
GND
AC2
AC1
AC2
AC1
AC2
1
2
3
JP9
L R OUT
、
GND
LIN1
RIN1
C
7
C
8
GND
E5
10UF/50V
1
2
3
JP5
GND
L
R
1
2
3
JP10
GND
R
L
LED+
GND
130
250V / 2A /
AC1
GND
O
C
Thermal fuse
C11
333
R23
683
1
1
2
2
JP5
TO LED
1
2
ZD2
3.9V
GND
LED+
GND
6
4
5
VR2B
B50K
C02
333
GND
1
3
2
VR2A
B50K
C01
333
GND
1
3
2
VR3A
B50K
1
2
3
4
5
JK1
PUTIN
C1
472
C2
472
GND
R42
R43
GND
GND
修
改
处
修
改
处
修改处
修改处
修改处