Microlab M-333 Schematics

4321

JK1

D

C

C7
CC104

B

SW1

AC IN

T1

R

L

R7
22K

R7'
22K

C8

10UF

C1

0.47UF

C1'

0.47UF

4XRL205

VR1A
B50K

VR1B
B50K

C9

+VB

CC27

R8

8

-VB

D1

75K

1

U4A

4

4558

2

3

C2
682

C2'
682

R1
10K

R1'
10K

MC272

MC272

C11
MC224

R9
10K

R10
10K

R15

220
C15
3300UF/25V

25V

C15'
3300UF/25V

R15'

25V

-VCC -VB

220

C3

C3'

6

5 7

U4B

C10
MC104

R16
510

R16'
510

C4

MC104

C4

MC104

C12

0.47UF

+VB+VCC

VR2
B10K

C16

100UF/25V

C16'

100UF25V

R2
20K

R2'
20K

C17
CC104

C17'
CC104

R3
680

C5

4.7UF

R3
680

C5

4.7UF

R11
560

C13
22UF

1R1
430/0.5W

1C1

47UF/25

1

2

1

2

1

2

-VCC

+VCC

U2

U3

-VCC

+VCC

TDA2030A
5

U5

3

-VCC

1ZD1

4.7V

5

TDA2030A

3

5

TDA2030A

3

4

4

4

1R2

2.4K

1C2

3.3UF

1R3

22

R4
33K

R4'
33K

R12
33K

1C3
CC223

-VCC

C6
CC224

R5

2.2

CC6'
CC224

R5'

2.2

C14
CC224

R13

2.2

1Q1
8050

R6

0.5/0.5W

R6'

0.5/0.5W

R14

0.5/0.5W

-VCC

SP1
6 ohm

SP2
6 ohm

SP3
6 ohm

T2

EL

-VCC

D

C

B

A

1 2 3 4

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

Title

M-333 SUBWOOFER

Number RevisionSize

A4

Date: 25-Nov-2003 Sheet of
File: F:\my file\My Design\M-333.ddb Drawn By:

SYSTEM

A

WANGZHAO