Microlab A-6601 Schematics

R2

C1

0.22UF

R2'

9.1K

8

4

3R2
10K

C12

104

U2A
4558

3C1

0.22UF

1R2

9.1K

1C1

0.22UF

2R2

9.1K
2C1

0.22UF

2R2'

9.1K

2C1'

0.22UF

+VA

R3

47K

2

1

3

U1A
4558

R1
47K

+VB

R3'
47K

6

7

5

U1B

R1'
47K

+VB

R12

39K

R11

1

BD1

+VB

+VB

+VB

+VB

3R1
47K

1R1
47K

2R1
47K

2R1'
47K

10K

3R3

18K

2

1

*

3

U4A

+VA

C18 104

1R3

8

47K

6

7

*

5

U4B

4

4558

+VA

2R3
47K

8

2

1

3

U6A

4

4558

2R3'
47K

6

7

5

U6B

+VP

C19
6800UF

25V

VR1A
B50K

R8
47K

R8'
47K

C22
1UF

R10

8.2K

3C2

10UF

+VB

C2'

10UF

C2

10UF

R9
100K

1C2
10UF

2

3

2C2

10UF

1C2
10UF

9.1K

C1'

0.22UF

+VA

FRONT R

D

C

B

A

FRONT L

VR1B
B50K

C11
100UF

BASS

Text

Text

CENTER

VR3B
B50K

REAR R

VR4A
B50K

REAR L

VR4B
B50K

F1

SW1

AC IN

1 2 3 4 5 6 7 8

T1L250V

T1

C3
682

R4

8.2K

C3'
682

R4'

8.2K

C13
224

R13
10K

3R4
47K

2R4

8.2K

2R4'

8.2K

R01

2.7K

LED3

1R4

8.2K

2C3
682

2C3'
682

R5

3.3K

R5'

3.3K

R02

2.7K

LED4

U2B

C15

0.47UF

7

VR2
B10K

1R5

3.3K

2R5

3.3K

2R5'

3.3K

R16

2.4K

SW2-A

LED1

6

5

C14
104

1C3
682

C5
104

R6

6.8K

C4
472

C5'
104

R6'

6.8K
C4'

472

C16

0.47UF
R14

2.2K

1C5

0.1UF

1R6

6.8K
1C4

472

2C5
104

2R6

6.8K

2C4
472

2C5'
104

2R6'

6.8K

2C4'

472

R17

+VA

330

LED2

R18

3.3K

ZD2
12V

C20
100UF

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

87654321

SW2-B

C10

R7
10K

10UF

7

U3

TDA7375A

9

1R7
10K

U1

TDA7375A

C21'

100UF/25V

3 13

8

3 13

8

4

5

C6
100UF

6

11

12

C17
102

1C10

10UF

7

4

5

1C6
100UF

6

12

11

9

+VB

C21

R19

100UF/25V

2.2K

C9
104

C7
470UF

1

C7'
470UF

2

10

15

14

1C9
104

1C7
470UF

1

2

10

2C7
470UF

15

14

2C7'
470UF

1C8
2200UF

+

-

-

+

-

+

+

-

-

+

+

-

+VP

+VP

C8
2200UF

SP4
4 OHM

SP5
4 ohm

SP6
4 ohm

SP1
4 OHM

SP2
4 OHM

SP3
4 ohm

Cen

Bass

X14Y

X012X113Y02Y11Z05Z13INH6A11B10C9VEE

Front L

Front R

C508

102

15Z4

X14Y

TC4053

X012X113Y02Y11Z05Z13INH6A11B10C9VEE

C504

102

C503

102

C505

102

R512

R513

R514

R511

22K

470

470

FRONT R

FRONT L

Title

A-6600

Number RevisionSize

A3

Date: 25-Nov-2003 Sheet of
File: F:\my file\My Design\A-6601.ddb Drawn By:

R517

R515

R516

470

470

22K

22K

CENTER

Rear L

Rear R

15Z4

TC4053

C507

102

16

7

8

R506

R508

47K

47K

R518

470

22K

BASS

C506

102

R502

R521

+VCC

100

R524

ZD501

R525

1.8K

5.1V

E502

100U/16V

U502

TC4053

16

100U/50V

E501

470K
R523

8

7

47K

R510

U501 TC4053

R504

47K

47K

R505

R505 '

R507

R509

R501

470

470

10K

R522

470

22K

R519

REAR R

REAR L

10K

4.7K

22K

R520

C502
102

AUX L

AUX R

WANGZHAO

D

C

B

4.7K

R503

C501
102

A