Brother FAX-8650P service manual Main PCB 1/7

1

2

3

4

5

6

A

B

C

D

C 1 2 4 C C 1 0 4

A S I C M F C 2

+ 5 V

7 4 C

R I

N G

7 6

R I N G

S E N 5

9 3

F A N 1

5 5 D

T E L

7 4

7 5

S P O N

7 3 B

T E L

S P O N

7 5 B

7 1 C

M U T E

9 1

S E N 3

P 7 1

1 2 2

R N G

7 5 C

R 1 4 0

2 2 K 3 2 C

S H A 3

9 0

S E N 2

D A R E C

6 8

2 0 8

A D L C

7 3 C

8 2

P W M 3

D 1 5

2 0 7

7 1 C

A N 0

D 1 4

L E D

6 7

2 0 6

3 2 A

P W M 2

D 1 3

7 2 C

D A S E N D 6 6

P W M 1

D 1 2

2 0 5

7 2 D

P O L

8 8

S E N 0

D 1 1

2 0 4

C 1

7 7

2 0 3

C L K 2 4

C 1

7 2 A

D 1 0

3 5 C

C 6 3

T L O F

8 9

2 0 2

R 1 1 4

7 2 A

S E N 1

D 9

C C 1 0 4

E A T

9 5

1 9 9

7 2 D

S E N 7

D 8

7 2 D

D P S

7 2

D P S

7 1 A

P L S

7 3

P L S

D 7

1 9 8

S 0 V

C M L H

7 1

1 9 7

7 2 A , 7 3 C

C M L

D 6

M I N T

4 0

1 9 6

M I N T

D 5

4 4 C , 6 3 C

1 9 5

D 4

U C A S

R 1 3 8

6 8

6

1 9 4

2 4 A , 2 4 A , 2 4 C

U C A S

D 3

F A N C N T 1 2 4

1 9 3

5 6 D

P 7 3

D 2

E S D

1 3 3

1 9 2

2 3 D

E E D A T

D 1

D B U S

R 1 3 7

1 8

2 4 A , 2 4 B , 2 4 C

R A M R D

7

R A M R D

D 0

1 9 1

2 4 A , 2 4 A , 2 4 C

C A S

R 1 3 9 6 8

5

L C A S

# 5

R D

1 6 7

R 1 3 4 1 0 R D

2 2 B , 2 2 D

N C

4

R A S 3

H W R

1 6 3

3 5 C , 4 4 C

3

1 6 6

R 1 3 5 1 0

L W R

N C

R A S 2

W R

2 2 B ,

2 4 A , 2 4 B

R A S 1

2

R A S 1

S E N 8

1 1 1

V O L 2

7 5 D

3 5 C , 4 3 B

2 4 A

R A S 0

1

R A S 0

A 2 0

1 6 8

2 1 B ,

2 1 D

R O M 1

1 6 2

R O M 1

A 1 9

1 6 9

4

5

2 4 A , 2 4 A , 2 4 C

R M W R

8

R A M W R

A 1 8

1 7 0

3

6

R 1 3 6

N C

9

R A M U W E

A 1 7

1 7 1

2

7 R A 1

1 8

1 7

R X T

A 1 6

1 7 2

1

8 6 8 x 4

1 6

R E X T

A 1 5

1 7 3

4

5

A 1 4

1 7 4

3

6

X T 2

1 7 5

2

7

R A 2

A 1 3

A 1 2

1 7 6

1

8

6 8 X 4

+ 5 V

C - 0 0 1 R

1 7 7

4

5

D A 1 1

C 9 5

C 9 6

1 7 8

3

6

C C 1 0 P

C C 1 0 P

D A 1 0

D A 9

1 7 9

2

7 R A 3

+ 5 V

1 8 1

1

8 6 8 x 4

D A 8

S 0 V

C 1 2 3

D A 7

1 8 2

4

5

R 1 5 4

1 6 A ,

2 6 A

1 8 3

3

6

C C 1 5 4

Q 1

2

1 . 5 K

3 4 C ,

6 5 D

D A 6

R 1 5 5

1 8 4

2

R A 4

( 2 1 2 5 ) 5

R S

1 K

1 3 0

D A 5

7

1

1 8 5

1

8 6 8 x 4

S 8 0 9 4 2

R S T

D A 4

4

C 1 2 2

R 1 5 7

D A 3

1 8 6

4

5

1 8 7

3

6

3

C C 1 0 2

2 2 0

1 1 8

E X T L

D A 2

1 8 8

2

7

R A 5

R 1 5 8

D A 1

1 8 9

1

8 6 8 x 4

A B U S

S 0 V

1 M

1 1 7

D A 0

S 0 V

E X T L

R 2 1 5

A B U S 1

X T 1

R 2 1 4

R 2 1 3

2 4 .

5 7 M H z

R 2 1 2

C 1 2 6

C 1 2 7

R 2 1 1

C C 1 5 p

C C 1 5 p

6 8 X 1 0

R 2 1 0

R 2 0 9

R 2 0 8

S 0 V

R 2 0 7

R 2 0 6

R A 1 2

1 5 0

x 4

D 7 R

4

5

D 7

D 6 R

3

6

D 6

D 5 R

2

7

D 5

D 4 R

1

8

D 4

D 3 R

4

5

D 3

D 2 R

3

6

D 2

D 1 R

2

7

D 1

D R B U S

D 0 R

1

8 D 0

D B U S

R A 1 3

1 5 0

x 4

L O C K

1 1 3

1 8

R V D D

5 1 C

H A I S I

9 4

S E N 6

P A 3

6 5

M S I L

5 5 A

5 3 B

P B 5

R V D D

6 6 B

B D

R 1 4 1 0 1 0 0

C 9 9

M C E

3 9

2 9

P M 1

5 5 C

B D

4 4 B

M R S T

4 1

M C E

P M 1

3 0

P M 2

5 5 A

2 2 B , 2 2 D

R O M 2 1 3 1

E R O M 2

C C 1 0 4

4 5 C

P C L K

4 4

M R S T

P M 2

3 1

P M 3

5 5 A

5 1 C

R E S I

1 2 1

P 7 0

S 0 V

R S

3 3 C

5 5 A

P C L K

P M 3

T C S

1 2 5

1 9

3 3 D

S D O U T

4 6

S D O U T

P M 4

3 2

P M 4

5 5 A

5 1 C

C O V E R 1 2 6

P 7 4

R T C C O N

1 0

1 1 C

5 1 C

P 7 5

B A V D D

+ 5 B

3 3 D

S D I N

4 5

S D I N

C M P P A

3 3

H O O K

5 5 C

5 3 A

T N O R 1 2 7

P 7 6

C 9 8

S M P C

5 6

3 4

R S E N

3 2 A , 3 4 C

C M P R A

3 5

S M P C

C M P P B

3 7

S O L

3 3 D

5 1 D

S O T H R 8 3

A N 1

C C 1 0 4

5 3 C

C M P R A

S O L

5 6 C

R 2 5 1 0

5 1 B

H E T H

8 5

A N 3

S 0 V

C M P R B

3 6

1 0 1

S C C K

5 3 C

C M P R B

S C N

5 3 B

8 4

1 3

R 1 1 0 1 0 0

L 7 L L 2 4 1

4 2

C L K

1 0 2

D R I V

)

A N 2

C K 3 2

C L K 2 4

D R I V E

5 3 B

1 1 0

L A S P

C 9 7

2 0 0

C S I P

5 5

9 8

S C D T

3 4 C

C S I P

V D O

5 5 B

C 1 5 2

5 3 C

R M 1

2 5

R M 1

C C 1 0 2

P D

4 7

L D O N

9 9

L D O N

(

3 6 C

4 8

I P D 0

1 0 3

T E N H

5 1 A

5 3 C

R M 2

2 6

R M 2

S 0 V

I P D 1

H V T P

5 1 A

S 0 V

R M 3

2 7

1 1

4 9

I P D 2

H V T N

1 0 4

T E N L

5 1 A

5 3 C

R M 4

2 8

R M 3

B A C L K

1 2

5 0

I P D 3

H V C H

1 0 5

T A I D

5 1 A

5 3 C

M T I 0 1 1 5

R M 4

B A E N B

5 1

I P D 4

H V G Z

1 0 6

G E N Z

5 1 A

5 3 C

P A 0

* R 1 2 3

+ 5 B

5 2

1 0 7

V C L N

R 2 5 2

5 3 C

M T I 1

7 8

P A 1

0

I P D 5

H V C L

5 1 B

+ 5 V

5 3

I P D 6

E R A S E

1 0 9

E L

5 3 B

(

)

7 2 B

T L S W

1 3 4

P 8 5

(

)

5 4

1 0 8

H T O

* R 1 2 2)

5 8

I P D 7

H T O

5 1 D

5 3 C

M T I 2

2 2

E X C S 1

V D D

5 7

R B

# 5

2 4

R 2 3 1 2 2 K

O U T

Q 2 3

S H

E X V D

+ 5 V

R 1 1 3

2 2 K

2 3

# 5

R H 5 V A

5 9

1 4 1

+ 5 V

E I N T 1

C L 2

C B S O N

1 4

C K 3 2 0 N

6 2

1 6 0

H B U Y

R 1 5 6

C L 1

H B U S Y

6 5 B

+ 5 V

+ 5 B

1 5 9 S E L I N

3 2 B , 3 5 C

T G

6 3

T R G

S E L I N

6 5 B

3 4 C

S R A M 2 2 K

1 2 3

P 7 2

)

G N D

D A S T

6 4

1 5 8 P R M I N T

7 2 D

P A 2

P R M I N T

6 5 B

E E C K

1 3 2

S 0 V

2 0 1

V D D

F L T

1 5 7

F L T

6 5 B

2 3 D

7 0

E E C K

R 1 1 2

(

1 9 0

V D D

S L C T

1 5 6

S L C T

6 5 B

S 0 V

A M 8 1 6

2 0

(

6 9

P W M 4

B K S L

1 6 5

V D D

P P E

1 5 5

P P E

6 5 B

1 4 7

1 5 3

B U S Y

V D D

B U S Y

6 5 A

7 6 C

V O L 3

1 2 8

P 7 7

1 1 4

1 5 2

A C K

+ 5 V

R 1 1 1

V D D

A C K

6 5 A

7 5 C

V O L 1 1 2 0

P B 6

0

9 7

V D D

S T B

1 6 1

S T B

6 5 B

Q 2 5

1 2 9

6 1

1 4 3

2 S C 3 9 2 8 A

C L K

V D D

D C 7

4 3

V D D

D C 6

1 4 4

5 1 B

H V C R

R 1 4 4

5 5 A

M T D I 1

9 2

S E N 4

S 0 V M 5 V

C C 1 0 4 x 6

2 1

V D D

D C 5

1 4 5

R 1 4 5

C 1 1 5

1 0 K

S A M P

1 1 2

8 1

1 4 6

C 1 4 1

3 6 C

S E N 9

A V D D

0 2

D C 4

1 0 K

C C 1 0 4

C 1 1 4

1 4 8

C C 1 0 4

1

D C 3

8 0

C C 1 0 4

C

(

A G N D

1 5

G N D

D C 2

1 4 9

S 0 V

S 0 V

S 0 V

2

3

3

5

0

3 8

1 5 0

1

0

1

2

2

G N D

D C 1

C 1

C 1

C 1

+ 5 V

+ 5 V

M 0 V

C 1

C 1

6 0

1 5 1

D C B U S

+ 5 V

P 2

G N D

D C 0

1 1 6

9 6

6 5 C

B 6 B -

P H

T S T 1

1 1 9

G N D

P 8 4

1 3 5

R 1 8 0

R 1 8 1

1

T S T 2

7 9

G N D

2 2 K

2 2 K

T S T 3

8 6

1 4 2

G N D

C T S

1 3 8

C T S

4

8 7

1 5 4

1 3 7

R T S

T S T 4

G N D

R T S

3

1 6 4

1 3 9

R X

G N D

R X D

5

S 0 V

S 0 V

1 8 0

1 4 0

T X

G N D

T X D

6

2 0 0

1 3 6

O P O N

7 3 A

G N D

P 8 3

2

S 0 V

S 0 V

S 0 V

S 0 V

R 1 0

R 7

R 1 6 5

P C B C H

0

0

)

S 0 V

F G

F G

F G

A Main PCB 1/7

A

B

C

D

1 2 3 4 5 6