Microlab M-900, MC-3500 Schematics

4321

+VB

8166

JK1

D

JK2
R

L

C

B

A

R

12

2

L

CD4053BC

13

1

+VB

C10
CC104

AC IN

U6

R9

4.7K

R9'

4.7K

R11

8.2K

C9

1UF

C19
103/1KV

SW1

14

15

91011

SW2

R10
100K

2

3

GREEN

LED2
RED

+VB

-VB

T1

LED1

8

4

C11

CC104

U4A
4558

VR1A
B50K

VR1B
B50K

R12

1

C12
CC104

R01
1K

R01'
1K

R24

3.3K

47K

4x1N4004

D3 D2

R13
10K

C1
1UF

C1'
1UF

-VCC

D1D4

VR4
W100K

+VB

U1A
4558

2
3

R1
100K

6
5

R1'
100K

C13
MC224

R14
10K

+VCC

C23
4700UF
25V

C24
4700UF
25V

-VCC -VB

-VB

U1B

6

5 7

U4B

C14
MC104

R22

470/0.5W

R23
470/0.5W

1

7

C15

0.47UF

VR2
B50K

ZD1

9.1V

ZD2

9.1V

C2
MC682

R2

8.2K

C2'
MC682

R2'

8.2K

+VB

R15

2.2K

C25
100UF/25V

C26
100UF/25V

R3

3.3K

R3'

3.3K

C16

0.47UF

C17
CC102

R4

6.8K
VR3A

R4'

6.8K
VR3B

B50K

B50K

R17
22K

C4

0.22UF

C3
MC333

C4'

0.22UF

C3'
MC333

-VCC

22K

R5
22K

R5'
22K

R17'

CC102

CC102

C21'

CC104

C03

C03'

1

2

1

2

C7
CC104

+VCC

U5

U6

C5

3.3UF

R6
510

C5'

3.3UF

R6'
510

TDA2030A
5

4

3

TDA2030A
5

4

3

C22'
100UF/25V

C8
100UF/25V

C7'
CC104

C21

CC104

R19
22K

C18
22uF

R18

680

R19'
22K

C18'

22uF

R18'

680

1

2

1

2

5

U2

3

5

U3

3

C22
100UF/25V

002-00900-201板 R01 R01'阻值为15K

1 2 3 4

+VCC

TDA2030A

4

R7
47K

TDA2030A

4

R7'
47K

-VCC

C8'
100UF/25V

C19
CC224

R20

3.3

R21
22K

C19'
CC224

R20'

3.3

Title

MC-3500/4.1 SUBWOOFER SYSTEM

Number RevisionSize

Legal

Date: 25-Nov-2003 Sheet of
File: F:\my file\My Design\M-900.DDB Drawn By:

C6
CC224

R8

3.3

C6'
CC224

R8'

3.3

0.5/0.5W

0.5/0.5W

JR1

0.5/0.5W

JR1'

0.5/0.5W

JR2

JR2'

SP3
8 ohm

SP1 FRONT R
12 ohm

SP4 REAR R
16 ohm

SP2 FRONT L
12 ohm

SP5 REAR L
16 ohm

WANGZHAO

D

C

B

A

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