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+VB +VCC
C2 C7 C8
D JK1 682 104 100UF/25V D
U1A C4
VR1A 2 082 R3 0.22UF SP1
B50K 1 JK4 3.3K 1 5 TDA2030A
8 ohm
3 4 JR1
R2 C3 2 U2
8.2K R4 333 0.5/0.5W
C1 R5
R1 6.8K C02 3 R7
1UF 22K C5 C6
47K -VB 39K
VR3A 102 3.3UF 224
B50K
R8
C2' R6 3.3
682 510
U1B C4'
6 082 R3' 0.22UF SP2
VR1B 3.3K 5
B50K 7 1 TDA2030A 8 ohm
5 4 JR1'
R2' C3' 2 U3
C1' R1' 8.2K R4' 333 0.5/0.5W
R01 1UF 47K 6.8K R5' C02' C5'
3
R7' C6'
R 22K
RCA 102 3.3UF 39K 224
22K VR3'B
R9 B50K
4.7K R6' R8'
C 510 3.3 C
R01' -VCC
L
RCA 22K C8'
R9' +VB C7' 100UF/25V
4.7K C11 C13 104
224
R11 104
8.2K C16 +VCC
6 0.47UF
2 8 R12 47K R13 R14 R15
10K 10K C21 C22
C9 5 7 1K 104 100UF/25V
3 1 U4B C06 C15
TDA2030A
4 U4A
C05 VR2 1 5
1UF 4558 C14 221 B10K 4 JR2
221 R10 U5
104 0.47UF C07 2 0.5/1W C09
100K C12 R17 102
3 R19 C19
104 22K 22K 224 221
-VB
R20 SP3
C08 C18 3.3 8 ohm
221 22uF
B R21 B
22K
R18
TDA2030A 680
1 5
4x1N5404 JR2'
C07' 4
2 U5
R17' 0.5/1W C09'
+VCC 221 3 R19 C19
22K
R22 22K 224 221
+VB
150/0.5W R24
R20
1.8K/0.25W C08' C18' 3.3
T1 D4 D1 C23 ZD1 C25 221 22uF
4700UF 9.1V 100UF/25V
AC IN SW1 25V
LED1 LED2 R18'
C24 ZD2 680
D3 D2 4700UF 9.1V C26 C22
25V 100UF/25V -VCC C21
104 100UF/25V
-VCC R23 -VB
150/0.5W
A A
Title
A-6331 SUBWOOFER SYSTEM
Size Number Revision
B
Date: 16-Apr-2003 Sheet of
File: F:\WANG\A-6302.ddb Drawn By: WANGZHAO
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