Microlab A-6601 Schematics

1

2

3

4

5

6

FRONT R

C2

R2

+VA

R3

C3

682

C5

9.1K

47K

R5

VR1A

10UF

2

104

B50K

1

3.3K

3

U1A

R4

R6

C1

R1

4558

8.2K

C10

R7

+VP

6.8K

C4

0.22UF

47K

472

10K

C9

C8

10UF

D

FRONT L

C2'

R2'

+VB

R3'

C3'

104

2200UF

7

3

13

9.1K

47K

682

C5'

C7

10UF

R5'

470UF

6

104

4

1

+

SP1

C1'

7

3.3K

VR1B

5

-

4 OHM

C7'

B50K

R4'

5

0.22UF

R1'

U1B

8.2K

R6'

470UF

-

6.8K

C6

U3

2

SP2

47K

C4'

472

100UF

TDA7375A

10

+

4 OHM

R8

+VB

6

47K

11

15

R8'

+

SP3

+VA C12

47K

C13

-

4 ohm

12

14

C11

R10

224

100UF

104

8.2K

C15

6

9

8

8

R11

39K

R12

R13

0.47UF

2

7

10K

10K

5

C16

3

1

U2B

0.47UF

R14

4

U2A

VR2

C22

R9

4558

C14

2.2K

1UF

100K

B10K

C

104

C17

+VB

102

3C2

3R2

3R3

18K

BASS

10UF

10K

2

3R4

3C1

*

1

47K

Text

3

U4A

0.22UF

3R1

1C10

1R7

+VP

47K

+VA

1C2

C18 104

1R2

1C3

10K

1C9

1C8

10UF

+VB

1R3

10UF

9.1K

682

1C5

104

2200UF

Text

6

8

47K

1R5

7

3

13

0.1UF

1C7

7

3.3K

CENTER

VR3B

1C1

5

*

4

1

470UF

+

B50K

4

U4B

1R4

SP4

8.2K

1R6

-

4 OHM

0.22UF

1R1

4558

6.8K

1C4

5

2

47K

472

U1

1C6

10

REAR R

2C2

2R2

+VB

+VA

2R3

2C3

100UF 6

TDA7375A

B

47K

682

2C7

9.1K

8

2R5

2C5

15

470UF

10UF

2

104

12

-

SP5

2C1

1

3.3K

VR4A

3

+

4 ohm

2R4

B50K

U6A

0.22UF

2R1

4

4558

8.2K

2R6

11

14

-

SP6

6.8K

2C4

47K

+

4 ohm

472

2C7'

1C2

9

8

2R2'

2R3'

470UF

10UF

REAR L

9.1K

+VB

47K

2C3'

682

2C5'

2R5'

2C1'

6

104

3.3K

VR4B

0.22UF

7

5

B50K

U6B

2R4'

2R6'

2R1'

8.2K

6.8K

2C4'

47K

472

F1

+VB

SW1

BD1

+VP

T1L250V

T1

R17

R18

+VA

+VB

330

3.3K

AC IN

A

C19

R16

ZD2

12V

C21

C21'

6800UF

R01

R02

2.4K

C20

R19

25V

2.7K

2.7K

100UF/25V

100UF/25V

SW2-A

100UF

2.2K

LED3

LED4

LED1

LED2

1

2

3

4

5

6

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

7

8

SW2-B

L R

+VCC

enC Bass

earR Rear

100

R524

R525

ZD501

1.8K

5.1V

E502

14

15

100U/16V

4

U502

TC4053

16

100U/50V

X

Y

Z

E501

TC4053

VEE

X0 X1

Y0 Y1

Z0 Z1

INH A B C

470K

R523

12 13

2 1

5 3

6 11 10 9 8 7

47K

R510

rontF L Front R

C508

C507

C506

102

102

102

14

15

4

X

Y

Z

16

TC4053

TC4053

INH A B C

VEE

U501

X0 X1

Y0 Y1

Z0 Z1

12 13

2 1

5 3

6 11 10

9 8 7

R504

C504

47K

102

R506

R508

R502

C503

102

47K

47K

47K

C505

102

R512

R517

R521

R522

R507

R509

R505

R505'

R501

R513

R514

R511

R515

R516

R518

R519

22K

470

4.7K

10K

10K

470

4.7K

R503

470

22K

470

22K

470

22K

470

22K

470

22K

R520

C501

470

C502

102

102

FRONT R

FRONT L

CENTER

BASS

REAR R

REAR L

AUX R

AUX L

Title

A-6600

Size	Number			Revision
A3
Date:	25-Nov-2003		Sheet of
File:	F:\my file\My Design\A-6601.ddb		Drawn By: WANGZHAO
	7	8

D

C

B

A