Microlab M-1700 Schematics
C1
0.22UF
R2'
10K
C22
104
8
U2A
4
4558
3R2
10K
3C1
*
0.22UF
1R2
10K
1C1
*
0.22UF
2R2
10K
0.22UF
2R2'
10K
+VB
+VB
R11
*
*
2C1
2C1'
0.22UF
1
BD1
+VA
R3
18K
2
1
3
U1A
4558
R1
47K
R3'
18K
6
7
5
U1B
R1'
47K
R12
39K
10K
3R3
18K
*
2
1
*
3
U4A
3R1
47K
*
+VA
C18 104
+VB
*
+VB
+VB
+VB
1R1
47K
2R1
47K
2R1'
47K
1R3
8
18K
6
7
*
5
U4B
4
4558
+VA
2R3
18K
8
2
1
3
U6A
4
4558
2R3'
18K
6
7
5
U6B
+VP
C19
4700UF
25V
VR1A
B50K
R8
4.7K
R8'
4.7K
C9
1UF
R10
8.2K
3C12
10UF
+VB
C2
10UF
C2'
10UF
*
2C2
10UF
R9
100K
10UF
2
3
2C2
1C2
10UF
*
R2
10K
C1'
0.22UF
+VA
FRONT R
D
C
B
A
FRONT L
VR1B
B50K
C12
100UF
BASS
Text
Text
CENTER
VR3B
B50K
REAR R
VR4A
B50K
REAR L
VR4B
B50K
SW1
F1
T1
AC IN
1 2 3 4 5 6 7 8
C3
682
R4
8.2K
C3'
682
R4'
8.2K
C13
224
R13
10K
3R4
4.7K
*
*
*
2R4
8.2K
2R4'
8.2K
R16
2.4K
6
5
C14
104
1C3
682
*
* *
1R4
8.2K
2C3
682
2C3'
682
R17
470
LE2
U2B
R5
3.3K
R5'
3.3K
7
+VA
1R3
3.3K
2R5
3.3K
2R5'
3.3K
C15
0.47UF
ZD2
12V
VR2
B10K
R6
6.8K
R6'
6.8K
*
1R6
6.8K
2R6
6.8K
2R6'
6.8K
R18
3.3K
100UF
C16
0.47UF
C5
0.1UF
C4
472
C5'
0.1UF
C4'
472
R14
2.2K
1C5
0.1UF
*
*
1C4
472
2C5
0.1UF
2C4
472
2C5'
0.1UF
2C4'
472
+VB
C21
100UFC20
R19
2.2K
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87654321
SW2
C10
R7
10K
10UF
7
U3
TDA7377
9
1R7
10K
U1
TDA7377
3 13
8
3 13
8
4
5
C6
100UF
6
11
12
C17
102
1C10
10UF
7
4
5
1C6
100UF
6
12
11
9
C9
104
C7
470UF
1
C7'
470UF
2
10
15
14
1C9
104
1C7
470UF
1
2
10
2C7
470UF
15
14
2C7'
470UF
1C8
2200UF
+
-
-
+
-
+
+
-
-
+
+
-
+VP
+VP
C8
1000UF
SP4
4 OHM
SP5
4 ohm
SP6
4 ohm
SP1
3 OHM
SP2
3 OHM
SP3
4 ohm
Cen
Bass
X14Y
X012X113Y02Y11Z05Z13INH6A11B10C9VEE
Front L
Front R
C508
471
15Z4
X14Y
TC4053
X012X113Y02Y11Z05Z13INH6A11B10C9VEE
C504
471
C503
471
C505
471
R512
R513
R514
R511
47K
470
47K
470
FRONT R
FRONT L
Title
M-1700 SUBWOOFER SYSTEM
Number RevisionSize
A3
Date: 25-Nov-2003 Sheet of
File: F:\my file\My Design\M-1700.ddb Drawn By:
R517
R515
R516
470
470
47K
CENTER
Rear L
Rear R
15Z4
TC4053
C507
471
C506
16
7
8
R506
R508
R502
47K
47K
R521
R518
470
47K
BASS
+VCC
100
R524
ZD501
R525
2.7K
5.1V
E502
100U/16V
U502
TC4053
16
100U/50V
E501
470K
R523
8
7
47K
R510
471
U501 TC4053
R504
47K
47K
R505
R505'
R507
R509
R501
470
470
10K
22K
R522
470
47K
47K
R519
REAR R
REAR L
22K
R520
C502
471
AUX L
AUX R
L.M. An
D
C
B
10K
R503
C501
471
A
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