Microlab M-800-2.1 Schematics
321
4
+VB
D
C
B
A
JK1
AC IN
AC ADAPTER IN
U1A
R1
100K
R1'
100K
39K
1
C12
104
D1
1N5402
D2
1N5402
4558
2
1
3
-VB
U1B
6
7
5
R14
10K
+VCC
C25
3300UF
25V
C26
3300UF
25V
-VCC
VR1A
B50K
C1
1UF
C1'
VR1B
B50K
1UF
R9
4.7K
R9'
+VB
R12
100K
SW1
C11
104
8
R13
2
3
U4A
4
4558
-VB
4.7K
R11
8.2K
C9
1UF
T1
1 2 34
R15
10K
R21
470/0.5W
R22
470/0.5W
C2
682
R2
8.2K
C2'
682
R2'
8.2K
C13
224
6
57
ZD1
9.1V
ZD2
9.1V
C14
104
+VB
-VB
U4B
R3
3.3K
R3'
3.3K
C27
47UF
C28
47UF
C15
0.47UF
VR2
B10K
R23
2.7K
R4
6.8K
R4'
6.8K
472
C16
0.47UF
-VCC
C4
0.22UF
C3
C4'
0.22UF
C3'
472
LED1
R17
22K
R5
24K
R5'
24K
C7
104
C5
2.2UF
R6
560
C5'
2.2UF
R6'
560
C18
22UF
R18
560
C8
100UF
/25V
1
2
SW2
1
2
SW2'
C7'
104
+VCC
1
U5
2
C23
104
-VCC
Title
Date: 27-Mar-2003 Sheet of
File: F:\huang bf\AN\M-8002.ddb Drawn By:
+VCC
5
TDA2030A
4
U2
R7
C21
104
R19
33K
/25V
39K
R7'
39K
R24
3.3K
R25
6.8K
R24'
3.3K
R25'
6.8K
C22
100UF
C19
224
R20
3.3
/25V
3
5
TDA2030A
4
U3
3
C8'
100UF
TDA2030A
5
4
3
C24
100UF
R26
47K
R26'
47K
-VCC
/25V
M-800 3D SUBWOOFER
Number RevisionSize
A4
C6
224
R8
3.3
C6'
224
R8'
3.3
SP3
4 ohm
SYSTEM
SP1
4 ohm
SP2
4 ohm
D
C
B
A
L.M.An
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