Brother FAX-8650P service manual Main PCB 3/7

1

2

3

4

5

6

R 5 V

+ 2 4 V

+ 5 V

R 5 V

P 1 9

C I

S

R 1 8 3

R 8 8

1 0

2 0 0

1 /

4 W

R 1 2

0

1

+ Y 5 V

R 8 7

A

C 1 3 3

Q 2 4

3 0 0

A

1 0

2 S C 3 9 2 8 A

L E D

S 0 V

R O V

/ 3 5 V

)

C 1 4 3

1 3 B

R 2 1 8

C C 1 0 4

R 1 4 7

C 1 5 0

C 7 7

0

C C 1 0 4

5 0 V

Q 2

1 0 K

(

S 0 V

S 0 V

2 S D 1 8 5 8

C 1 1 6

C C 1 0 4

+ 5 V

R 2

1 W

2

3 0

R 0 V

)

R 2 2 9

R 2 4 4

S 0 V

# 8

S M P C

(

)

1 3 A

L C 8 2 1 0 3

(

S 0 V

A 1 1

R 2 5 3

R 2 5 4

C 8 0

2 0 0

L 2 4 1 C L K 1

C 5

R 2 3 0

C C 1 0 4

4 2

1 0

+ 5 V

3

3 6 C

1 6 V /

1 0

D A R E F H

V D D

0

3 8

2 4

T G

4

1 3 B

A P 0

D A R E F L

V D D

3 5 B

R 1 4 3

R 1 9 5

V I D

3 9

5 6

3 2 B

A I N

V D D

2 7 0

4 . 7

1 / 1 0 W

R 5 V

4 0

5

+ Y 5 V

T E M P

C 1 0 9

R 0 V

4 1

9

C 1 3 2

)

A T A P

G N D

C C 1 0 4

3 7

1 7

1 0 0

/ 1 0 V

C 7 5

C 7 2

A D R E F L

G N D

6

R 0 V

2 6

O

C 7 4

C 1 0 0

R 2 4 7

G N D

R 3 0 1 8

(

4 5

4 9

C C 1 0 4

C C 1 0 4

V I

D

0

A P 0

7

3 5 B

3 3 B

A P 0

G N D

4 4

6 4

B

B

C 1 3

)

A P 1

G N D

B 7 B -

P H

C C 1 0 1

R 2 4 8

R 1 4 6

4 3

4 7

)

S 0 V

1 0 K

R 5 V

A V D D

S D / P D 7

+ 5 V R 2 2 2

R 0 V

(

C 1 5 1

3 5

4 8

R 0 V

A P 2

P D 6

C 7 8

2 2 K

3 4

5 0

R 2 4 9

0

(

C C 1 0 4

A P 3

P D 5

3 6

5 1

R O V

A G N D

P D 4

S 0 V

4 6

5 2

R 0 V

A G N D

P D 3

R 2 3 7

5 3

Q 3 8

2 7 0

# 2 0

P D 2

R 0 V

T G

3 1

5 4

2 S B 1 1 3 2 K

1 W

I N

O U T

R 2 5 5

0

1 3 B

T R I G

P D 1

+ 2 4 V

7 8 M 0 5

+ Y 5 V

1 3 A

S M P C

3 0

5 5

P D

1 3 B

R 2 3 4

I C L K

P D 0

G N D

1 3 A

C S I

P

R 2 2 5

2 9

5 7

S 0 V

1 / 1 0 w

R 2 3 5

I O C S

D A C K

A 9

(

)

R 2 2 7

2 2 K

2 8

5 8

2 2 K

1 / 1 0 W

R 2 3 6

)

M C S

D R E Q

+ 5 V

6 . 8 K

A 1 0

2 7

5 9

C 1 5 4

4 . 7 K

C 1 5 5

R 2 2 6

0

I O E

M T P

R 2 2 8 2 2 K

1 2 A

S H A 3

3 . 3

S R A M

2 3

M E

5 0 V

S A M P

(

R D

2 2

3 3

1 2 B

R D

S A M P

1 5 C

Q 3 7

1 2 B

L W R

2 1

6 2

D T C 1 1 4 Y K

W R

R S

1 3 B

C L K 2 4

2 5

6 3

C L K I N

S H

C L K 1

S 0 V

R 0 V

R S

3 2

6 1

1 1 C

3 2 B

R E S E T

C L K 1

R 8 6

1 K

6 0

C

C 7 6

C L K 2

C

N O T

A S S Y

A 0

2 0

)

C C 1 0 2

A 0

+ 5 V

A 1

1 9

8

D 0

R 2 5 6

A 1

D 0

P 2 1

A 2

1 8

7

D 1

S 0 V

A 2

D 1

(

B 6 B -

P H

A 3

1 6

6

D 2

A 3

D 2

A 4

1 5

5

D 3

A 4

D 3

3

R 4 5

R 1 8 2

A 5

1 4

4

D 4

4 . 7 K

1 0 0 K

A 5

D 4

A 6

1 3

3

D 5

C 4 0

A 6

D 5

A 7

1 2

2

D 6

C C 1 0 4

A 7

D 6

D R B U S

2

A B U S

A 8

1 1

1

D 7

A 8

D 7

S 0 V

R 4 6

1 0 0

P C L K

6

1 3 A

4

S D O U T

R 4 4

1 0 0

1 3 A

5

S D I N

1 3 A

1

R S E N

1 4 A

R 4 3

D

1 0 0

D

C 3 9

P A N E L

C C 1 0 2

C 4 2

C 4 1

C 4 3

C C 1 0 1

C C 1 0 2

C C 1 0 2

S 0 V

A

Main PCB 3/7

1

2

3

4

5

6