Microlab A-6331 Schematics

1

2

3

4

5

6

+VB

C7

+VCC

C2

C8

D

D

JK1

104

U1A

682

C4

100UF/25V

VR1A

2

082

JK4

R3

0.22UF

1

5 TDA2030A

SP1

B50K

3

1

3.3K

JR1

8 ohm

R2

R4

C3

2

U2

4

0.5/0.5W

C1

8.2K

R5

R1

6.8K

333

C02

C5

3

R7

C6

1UF

22K

47K

-VB

VR3A

102

3.3UF

39K

224

B50K

R6

R8

C2'

3.3

510

U1B

682

C4'

6

R3'

SP2

VR1B

082

0.22UF

5 TDA2030A

7

3.3K

1

8 ohm

B50K

5

R2'

JR1'

R4'

C3'

2

U3

4

0.5/0.5W

C1'

R1'

8.2K

6.8K

333

R5'

3

R

R01

1UF

47K

C02'

C5'

R7'

C6'

RCA

22K

102

3.3UF

39K

224

22K

VR3'B

R9

B50K

R6'

R8'

4.7K

C

510

3.3

C

L

R01'

-VCC

C8'

RCA

22K

R9'

+VB C11

C7'

100UF/25V

4.7K

C13

104

R11

224

104

8.2K

C16

+VCC

2

8

R12

47K

R13

R14

6

0.47UF

R15

C21

C22

10K

10K

5

7

1K

C9

1

C06

C15

TDA2030A

104

100UF/25V

C05

3

U4B

VR2

1UF

4

U4A

221

1

5

JR2

221

4558

C14

B10K

U5

4

R10

C07

2

100K

C12

104

0.47UF

R17

0.5/1W

C09

102

3

104

22K

R19

C19

221

-VB

22K

224

SP3

C08

C18

R20

3.3

8 ohm

B

221

22uF

R21

B

R18

22K

TDA2030A

680

4x1N5404

1

5

4

JR2'

C07'

U5

R17'

2

0.5/1W

C09'

+VCC

221

3

R19

R22

22K

C19

221

+VB

22K

224

150/0.5W

R24

R20

C18'

T1

D4

D1

C23

ZD1

C25

1.8K/0.25W

C08'

3.3

221

22uF

SW1

4700UF

9.1V

100UF/25V

AC IN

25V

LED1

LED2

R18'

C24

ZD2

680

D3

D2

4700UF

9.1V

C26

-VCC

C21

C22

25V

100UF/25V

104

100UF/25V

-VCC

R23

-VB

A

150/0.5W

A

Title

A-6331

SUBWOOFER SYSTEM

Size

Number

Revision

B

Date:

16-Apr-2003

Sheet of

File:

F:\WANG\A-6302.ddb

Drawn By: WANGZHAO

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