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

PDF created with FinePrint pdfFactory trial version http://www.fineprint.com