Microlab A-6321 Schematics

654321

5

TDA2030A

3

5

TDA2030A

3

C8'
100UF/25V

R19
22K

C18
22uF

R18

680

+VCC

SP1

SP3
4 ohm

6 ohm

SP2
6 ohm

C6
CC224

R8

3.3/0.25W

C6'
CC224

R8'

3.3/0.25W

JR2

0.5/1W
C19
CC224

R20

3.3/0.25W

A-6321

Number RevisionSize

JR1

0.5/0.5W

JR1'

0.5/0.5W

4

R7
39K

4

R7'
39K

-VCC

C22
100UF/25V

Title

B

Date: 17-Mar-2004 Sheet of
File: F:\my file\My Design\A-6321&HS-2128.ddbDrawn By:

D

C

B

A

WANGZHAO

+VB

R
RCA

L

RCA

JK1

AC IN

R01

22K

R01'
22K

C9

1UF

R9

4.7K

R9'

4.7K

R11

8.2K

SW1

+VB

2

3

R10
100K

-VB

FUSE1

1A 250V

8

4

VR1A
B50K

VR1B
B50K

C11

CC104

R12

U4A
4558

C1
1UF

C1'
1UF

47K

1

C12
CC104

T1

D

C

B

A

1 2 3 4 5 6

R1
47K

R1'
47K

R13
10K

2

3

6

5

U1A
082

-VB

U1B
082

4xRL205

D3 D2

1

7

C13
MC224

6

R14
10K

5 7

C14
MC104

+VCC

D1D4

-VCC -VB

U4B

C23
4700UF
25V

C24
4700UF
25V

C2
MC682

R2

8.2K

C2'
MC682

R2'

8.2K

C16

0.47UF

R22

150/0.5W

R23
150/0.5W

C4

R4

6.8K

VR3A
B50K

VR3B
B50K

0.22UF

C3
MC333

C4'

0.22UF

C3'
MC333

R02

1K/0.25W

R02'

1/0.25W

R17
22K

LED1

LED2

R5
22K

R5'
22K

C08
MC102

CC104

R3

3.3K

R3'

3.3K

R4'

6.8K

R15
1K

VR2
B10K

ZD1

9.1V

ZD2

9.1V

+VB

C15

0.47UF

C25
100UF/25V

C26
100UF/25V

C21'

C02
CC102

C02'
CC102

C7
CC104

R6
510

R6'
510

C22'
100UF/25V

C5

3.3UF

C5'

3.3UF

1

2

+VCC

U5

-VCC

C8
100UF/25V

C7'
CC104

TDA2030A
5

4

3

1

U2

2

1

U3

2

C21

CC104

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