Microlab M-590 Schematics

4321
+VB
D
C
B
A
AC IN
JK1
SW1
U1A VR1A B50K
C1
R1
1UF
100K
VR1B B50K
R9
4.7K
R9'
4.7K
R11
8.2K
C9
1UF
T1
1 2 3 4
C1'
1UF
+VB
8
2
3
4
R12 100K
-VB
D1 1N4002
D2 1N4002
D3 1N4002
D4 1N4002
C11
104
U4A 4558
R13
R1' 100K
1
C12 104
4558
2 3
6 5
39K
1
-VB
U1B
7
R14 10K
+VCC
R21
470/0.5W
C25 3300UF 25V
C26 3300UF 25V
-VCC -VB
R22 470/0.5W
R15 10K
C13 224
C2 682
R2
8.2K
C2' 682
R2'
8.2K
6
5 7
U4B
C14 104
+VB
ZD1
9.1V
ZD2
9.1V
R3
3.3K
R3'
3.3K
C27 47UF
C28 47UF
C15
0.47UF
VR2 B10K
R23
2.7K
R4
6.8K
R4'
6.8K
C16
0.47UF
-VCC
C3
333
VR3A
B50K
C3' 472
VR3B
B50K
C4
0.22UF
C4'
0.22UF
LED1
R17 22K
R5 24K
R5' 24K
C7 104
C5
2.2UF
R6 510
C5'
2.2UF
R6' 510
R18 560
C18 22UF
C8 100UF/25V
C7' 104
C23 104
5
1
TDA2030A
U2
2
3
5
TDA2030A
1
U3
2
3
C8' 100UF/25V
+VCC
TDA2030A 5
1
U5
2
3
-VCC
Title
A4
Date: 26-May-2004 Sheet of File: F:\my file\AN\M5001.DDB Drawn By:
+VCC
4
R7 39K
4
R7' 39K
-VCC
4
C24 100UF/25V
C21 104
R19 39K
C22 100UF/25V
R20
3.3
M590 SUBWOOFER
Number RevisionSize
C19 224
R8
3.3
R8'
3.3
C6 224
C6' 224
SP1 4 ohm
SP2 4 ohm
SP3 4 ohm
SYSTEM
D
C
B
A
L.M.An
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