Microlab X1-2.1, X2-2.1 Schematic
7654321
M
8
D
+VA
C12
100UF
C2
R2
C1
0.22UF
R2'
8.2K
8
4
C22
104
U2A
4558
DIODE
R3
24K
2
3
U1A
4558
R1
47K
+VB
R3'
24K
6
5
U1B
R1'
47K
+VB
47K
R12
R11
10K
123
C14
*
221
* NO USE
+VP
C19
4700UF
25V
8.2K
10UF
C2'
10UF
C1'
0.22UF
R8
4.7K
R8'
+VA
4.7K
R10
6.8K
R9
C9
1UF
47K
+VB
BD1
FRONT R
VR1A
B50K
R2
1K
VR4
FRONT L
VR1B
B50K
C
B
F1
AC IN
TW100k
R2
1K
SW1
T1
C3
682
R5
1
7
C14
224
R13
10K
R16
330
R15
2.7K
LE2
3.3K
R4
8.2K
C3'
682
R4'
8.2K
6
5
C15
104
+VA
ZD2
12V
R6
6.8K
C04
472
R5'
3.3K
R6'
6.8K
C04'
472
C16
0.47UF
7
U2B
R17
3.3K
C20
100UF
VR2
B10K
C17
0.47UF
+VB
R18
2.2K
C21
100UF
C5
0.1UF
C4 333
B50K
VR1A
C5'
0.1UF
C4'
333
VR1A
B50K
R14
10K
C18
102
C6
100UF
C10
R7
10K
10UF
313
7
11
12
6
4
5
9
U3
TDA7377
14
15
10
1
2
8
+VP
C8
C9
470UF
104
C7
470UF
+
SP1
3 OHM
-
C7'
470UF
-
SP2
3 OHM
+
+
SP3
4 ohm
-
D
C
B
A
Title
X1/X2-2.1 SUBWOOFER SYSTE
Number RevisionSize
A3
Date: 27-Mar-2003 Sheet of
1 2 3 4 5 6 78
File: F:\huang bf\HU ANG\X1-2.ddb Drawn By:
L.M. An
A
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