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+VB
C2' +VCC
INPUT1 682 C7
R C8
104 100UF/25V
U1A
VR1A 6 4558 R3' FR SPEAK
D 7 3.3K 1 5 TDA2030A 0.5/1W D
B50K 6 ohm
5 4 JR1
INPUT2 R2' U3
R01 1K 8.2K 0.22UF 2
C1' R4' VR3A C4'
1UF
R1'
6.8K 3 C6'
B50K 2.2UF
100K 224
R R10' -VB R5' C5'
15K 24K R6' R7' 33K R8'
W100K 510 3.3
VR4 C3
L L 333
U1B 682
2 C2 R3 C4 FL SPEAK
R10 3.3K TDA2030A 1 5
15K 1 0.5/1W 6 ohm
R01' 1K 3 4 JR2
VR1B R2 U2
B50K 0.22UF 2
C1 R1 8.2K VR3B
1UF 2.2UF
3 C6
100K R9' R9 B50K R5
R4 24K C5 224
4.7K 4.7K R7 33K
C 6.8K C
R6 R8
510
C3' -VCC 3.3
333
C8'
C7' 100UF/25V
+VB C13 104
224
R11 8.2K C15 100UF/25V
C22
8 R13 33K R14 R15
6 0.47UF
2 7 +VCC
10K 10K
5 0.47UF
3 1 U4B TDA2030A BASSSPEAK
C16 5
4 U4A
4558 VR2
1 6 ohm
C9 C14 4
1UF B10K U5
R12 104
R17
2
100K 3 C19
22K 22UF
B -VB R19 224 B
R18 C18
560 39K
R20
3.3
1N4002/IN4004 +VCC R21
D1
330/0.5W
+VB
SW1 C24 E008
T1 -VCC
D2 ZD1 C27
C21 C11
9.1V 100UF/16V
1N4002/IN4004 104 104
AC IN C25
D3 1N4002/IN4004 3300UF/25V
R23
2.7K
C23 ZD2 C28
9.1V C12 LED1
D4 C26 104 330/0.5W 100UF/16V 104 Title
A 1N4002/IN4004 3300UF/25V R22 A
-VB X1
Size Number Revision
A4
-VCC Date: 5-Apr-2004 Sheet of
File: F:\my file\WANG\X1-21 2030.ddb Drawn By:
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