Microlab M-800-4.1 Schematics
321
4
+VCC
C6
224
R8
3.3
C6'
224
R8'
3.3
SP3
6 ohm
SYSTEM
SP1
6 ohm
SP2
6 ohm
5
TDA2030A
1
4
U2
2
1
2
TDA2030A
5
U5
3
Title
A4
Date: 26-Mar-2003 Sheet of
File: F:\huang bf\AN\M-800.ddb Drawn By:
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
U3
3
C8'
100UF
4
C24
100UF
4
R26
47K
R26'
47K
/25V
-VCC
M-800 /4 3D SUBWOOFER
Number RevisionSize
SP4
6 ohm
L.M.An
C01
22UF
C01'
22UF
SP5
6 ohm
D
C
B
A
C1'
1UF
C1
1UF
8
4
C11
104
U4A
4558
R13
1
2
3
R1
100K
6
5
R1'
100K
39K
C12
104
D1
1N5402
D2
1N5402
+VB
-VB
U1A
4558
U1B
+VCC
-VCC
R14
10K
1
7
C25
3300UF
25V
C26
3300UF
25V
D
C
B
A
JK1
AC IN
AC ADAPTER IN
VR1A
B50K
VR1B
B50K
R9
4.7K
R9'
+VB
4.7K
R11
8.2K
2
C9
3
1UF
R12
100K
-VB
T1
SW1
1 2 34
R21
470/0.5W
R22
470/0.5W
R15
10K
C13
224
C2
682
R2
8.2K
C2'
682
R2'
8.2K
R3
3.3K
R3'
3.3K
+VB
-VB
U4B
C27
47UF
C28
47UF
C15
0.47UF
6
57
C14
104
ZD1
9.1V
ZD2
9.1V
VR2
B10K
R23
2.7K
R4
6.8K
R4'
6.8K
C16
0.47UF
-VCC
C4
0.22UF
C3
472
C4'
0.22UF
C3'
472
R17
22K
LED1
R5
24K
R5'
24K
C7
104
C5
2.2UF
R6
560
C5'
2.2UF
R6'
560
C18
22UF
R18
560
C8
100UF
C23
104
/25V
C7'
104
+VCC
1
2
-VCC
SW2
SW2'
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