Brother MFC-9840CDW, DCP-9045CDN NCU PCB Circuit Diagram

NCU PCB Circuit Diagram

+24V

R41-4910-A

XX3 XX 4

(LINE)

FG 7

L3

D4

RA-351M-V6-2

L2

D7

1SS120

CML 6B

SW1

11 12

R7 100 2W

2

7

1

A5X-24E-908

R4 6.2k

		@C3	C10
@T1		+	35V
NC	C2	C102
BT-17

C4	C103
	C5
	50V	C2.2
	+	SL
@R8	510	6B
	R10
	2.7k
	C7	@C9	C221

FG 8 NC

J2

D6

RA-242M-C6

J1
FG 8	NC
FG 7	NC

(EXT)

XX4 XX 3

R41-4910-A

D5	S1ZB60
RA-242M-C6
	@D2

FG

L1

+
A2	A1	04
-	@D1	ERA15-
AK1		AK2

2W
120
@R1	PLS
	6C

C A

E

@PH1 K

PS2533-1

GND

R5	6.2k
R6	6.2k

C1

C474

250V

		GND
		PH3
R2	R3	TLP421
24k	24k

CI

A	C 6B
D3	E
1SS120	K
	GND

R11

C104

4.3k

C101

R14

100k

C104

+5V

C102

P1

R12

100k

8

C104

TELRL

2C

11 TELRL

2 - U1

TELSL

10 TELSL

BA10358

1

6B

RL1

3D

9

+24V

3

+

C8

+24V

R16

100k

C101

R23

8 CML

CML

4

C104

3.3k

CI

2A

7 CI

R27

C11

4B

C19

6 GND

4.7k

GND

GND

C222

GND

5 TELOFF

TELOFF

2C

+5V

4 +5V

R28

@C18

C221

SL

3 SL

100k

5A

REF

2 RL1

RL1

5B

1 PLS

PLS

2B

B11B-PH-K-S

TELOFF

C

E

+5V

6B

PH2

GND

TLP320

R18

620

REF

+5V

R25

+

C16

620

6.3V

L8

C470

C

@Q1

TELRL

@C6

B

6B

GND

E

C5395

FG

GND

C10

+

+5V

@R9

150

@R20

100

GND

285D-D440J-111

C104

@C10

C471

+

C104

@L5

@C13

XX 1

@R24

16V

XX 2

@L4

2.7k

C10

@C17

@R22

@R15

0

XX 3

GND

GND

C104

@L7

24k

(H.S)

XX 4

U1

@C12

BA10358

@L6

C101

6 -

7

TELSL

GND 5

5 +

6B

@C15

@R21

GND

NC

24k

@R13

6

C104

@J3

@R19

3.3k

2.7k

@R17

@C14

C103

0

C471

GND

GND

C104

REF

REF

MFC:B11B-PH-K-S(1pin to 11pin)

FB:B9B-PH-K-S(1pin to 9pin)

B53K784-2

6-8 Confidential