beautypg.com

Brother FAX-921 User Manual

Page 183

background image

+ 5 V

M 0 V

B A 1 0 3 5 8 F

# 1 8

8

4

# 1 8

B A 1 0 3 5 8 F

T X O U T

R X I N B

V B I A S

3

1 6

2

H R E F

C 1 0

1 6 V 1 0

C 3 0

C C 1 0 4

R 2 8

0

C 3 1

*

1 5

R X I N A

A P D M D T

D P D M C K

D P D M D T

A P D M C K

5

6

7

9

1 0

1 1

1 2

1 3

# 1 7

T C 3 5 1 3 3 F

C 3

C 4

C 5

M U T E

T B U S

1 4 D

V D D

V S S

V S S

- P D

8

1

4

1 4

M O V

R S T L

1 4 A

A M U T

D M K

A D M D

A M K

A A M D

C 0

C 1

C 2

-

+

C 3 2

6 8 1 B

C 2 9

C C 1 0 4

+ 5 V

C 2 3

C C 1 0 4

-

+

# 1 8

B A 1 0 3 5 8 F

R 2 1

7 5 K

C 2 4

C C 2 2 1

R 1 7

5 6 K

R 2 0

4 . 7 K

M 0 V

R 1 8

5 6 K

H R E F

H R E F

7

8

C 3 4

C C 2 7 3 B

R 3 0

4 . 7 K

M O V

R 2 7

4 . 7 K

M O V

M 0 V

C 1 8

C C 1 0 4

C 2 7

C C 2 2 1

R 2 5

1 0 0 K

P 1 3

2 / 2

1 7 B

P B U S

P A N E L

7

6

5

3

2

1

+ 5 V

P 7

B 8 B - P H

W H I T E

2

5

P C I

4

8

7

1

6

3

G N D

4 4 D

H F R L

C K S

L 8

L 1 0 2 B

C R X D

R X D

T X D

C T S

R 2 9

2 0 0 K

+ 5 V

R 3 6

2 . 2 K

C 1 9

C C 1 0 2 B

H R E F

L 3

L 1 0 2 B

L 6

L 1 0 2 B

L 4

L 1 0 2 B

L 5

L 1 0 2 B

L 7

L 1 0 2 B

C X 1

C C 1 0 4

1

2

3

4

5

6

7

8

2

1

3

4

5

6

7

8

A

B

C

D

E

F

A

B

C

D

E

F

A

Main PCB 5/6
(FAX870MC/MFC970MC/FAX-930/
FAX-931)

This manual is related to the following products: