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1 2 3 4 5 6 7 8
D D
C23
VCC
100UF
3D ON/OFF R6 R7
10K 5.1K
3D
LED +VCC
1 U1A
28 27
FRONT R C1 8
C7 6 4558 C12
10UF 10UF 7 0.1UF
25 26 5
RIN ROUT
C2 4
822 R5
R1 2.2K 24 RT 23 C16 PO +VP
CR1 100K
C4 R6' R7'
10K 5.1K 10UF C17 C18
R2 22 333 104 2200UF
C1' CR2
FRONT L 10UF 220 7 3 13
C3 334 C5 C19
4 470UF
LIN 21 333 U1B 12
CR3 15 +
VBB C12' SP1
C2' 2 4558
R1' 0.1UF 4 OHM
5 1 C19'
-
LT LOUT
3 3 11 470UF
2.2K
822 14 -
R2' U3 SP2
C15
C7' R5' 4 OHM
C 100UF TDA7377 10 + C
220 10UF 100K 6
20
C3' 6 C2
CL1
334
C4' C8 1
333 473 4
7 +
CL2 SP3
19 - 6 ohm
REF
C5' 5 2
333 8 CL3 C9
+VCC
100UF R12
SUBUP 9 8
9 330
SUP 18 C14
CIN R11
SUBDOWN 10 1K
C10 100UF C13
SDW
104 1UF
MAINUP 17 R9 R13
CIP
11 27K
MUP 2.2K
MAINDOWN C11 Q1
12 16 9014
MDW SOUT C14
R3 102
1UF
R8
33K 13 15
OSC PO TO 5.1K
Pin7
R4 R10
PT VSS 100
C6 5.1K
B 2.2UF 14 2 B
POWER
LED2
SW1 BD1
T1
R15 R16
+VP VCC 3.3K VBB
220
AC IN
ZD1
C20
8.2V R17
4700UF C22
25V C21 3.3K
100UF 100UF
A A
Title
M-555 SUBWOOFER SYSTEM
Size Number Revision
A3
Date: 25-Nov-2003 Sheet of
File: F:\my file\My Design\M-555.Ddb Drawn By: WANGZHAO
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