System Diagram

Service Manual

6-1

Samsung Electronics

6.1 Block Diagramg

6. System Diagram

Reset IC

Inlet

&

Pow

er S/W

Fuser Contro

l

+5V/

+24V

SMPS

AC 110V / 220

V

HVPS

D

EV

Charger

T1

T2

EX

IT

Sensor

Chorus

3

(412 PBG

A)

AR

M

92

6E

JS

(3

60

M

H

z)

16

KB

I-cache

16

KB

D

-c

ac

he

DMA / INT.

CTRL

PL

L

DDRC

ROMC

(2

C

H

N

O

R

)

UART*

2

HPVC

LS

U

C

DMAC

MOTORC

IO

C

ADC/DAC

SCAN I/

F

RTC/

TIMERS

FUSER

H

O

T,

Neutr

al

D

D

R

2

K4

T5

11

63

x

2

(64M

x 16bit)

Serial Flash For Back-u

p

2MB

FU

SE

R

_O

N

LSU

MAIN PBA

SY

S_nR

ES

ET

Flash memor

y

(AM29LV640)

8MB

EE

PR

O

M

M24C08

8K B (32KB)

+5

V

+24V

+24VF

Cov

er

S

/W

+24V

+24VF

+24VF +5V_L

SU

W

aste Ton

er

Se

nsor 1,

2

+24VF

DE

V

E

C

lu

tc

h

CRUM

CRUM

CRUM

CRUM

SC

L,

SD

A

+24VF +24VF

IT

B_

C

lu

tc

h

IT

B_

Te

ns

io

n

C

lu

tc

h

C

ha

rg

er

Regi_Clutch

+24VF

Pi

ck

up

_C

lu

tc

h

+24VF

T2 Clutc

h

+24VF

Fus

er Clutc

h

+24VF

+5

V_

LS

U

+5

V

IS

P

17

61

D

+,

D

-,V

BU

S

BCM

52

41

KM

LG

M

VP

G

3

1

M

VP

G

3

1

+5

V

LD

11

17

+3.3V

+1V

+1.8V

Pa

pe

r D

riv

er

Sy

stem

BLDC

12

M

H

z

PT

L

&

Eraser

TD

+,

TD

-,R

D

+,

R

D

-

+24VF

nCOVER_OPE

N

A3

98

3

A,

/A

,B

,/B

H

T8

2V

26

ADF I/F

PBA

FA

N

SP

K

+,

SP

K

-

RJ11

RJ11

FAX PBA

R

TC

32.76

8K

H

z

OPC

M

ai

n

C

lo

ck

12

M

H

z

Color CIS

(COLOR 1200DPI)

SC

AN

MOTOR

St

ep

4-in-1 Only

USB

Host

BLDC

D

+,

D

-,V

BU

S

(4-in-1)

W-L

AN

(rese

rv

ed

)

USB

Host

SS

C

G

M

C

LK

VC

LK

OP

E

B

AT

FU

SE

R

_T

H

ER

M

1

nF

U

SE

R

1_

EN

D

+,

D

-,V

BU

S

ADF Joint

ADF

MOTOR

St

ep

D

ET

Sensor

POS Sensor

nINT

ER

LOC

K

+24VF +5V_L

SU

+5V_L

SU

+24VF

System Diagram

Service Manual

6-2

Samsung Electronics

6.2 Connection Diagramg

(FR-4, 6 Layer)

Main PBA

USB De

vi

ce

4p/USB-B Con.

4p/USB-A Con.

SMPS

(T

yp

e II

)

HVPS

(FR1, 1 La

ye

r)

16p/Wire

26p/FFC

LSU

16p/FFC

Inl

et /

Sw

itch

2p/Wir

e

OPE PBA

(FR1, 1 La

ye

r)

CI

S

12p/FFC

8p/RJ45 Con.

Ethernet

ADF I/F PBA

(FR4, 2 La

ye

r)

20p/FFC

ADF Motor

Detect Senso

r

12p/Wire

2p/Wir

e

3p/Wir

e

7p/Wir

e

3p/Wir

e

3p/Wir

e

3p/Wir

e

2p/Wire 2p/Wir

e

2p/Wir

e

3p/Wir

e

2p/Wir

e

3p/Wire

CRUM Joint

PBA

5p/Wir

e

Exit-Senso

r

3p/Wir

e

Main-Fan

3p/Wir

e

Waste-TX/RX

4p/Wir

e

MHV / THV

/ Bia

s

Direct Contact

Crum Y

Crum M

Crum C

Crum K

I2C

COVER OPEN

(24V

On/off)

LIU PBA

(FR4, 2 La

ye

r

)

12p/Wire

2p/Wir

e

10p/Wire

Regi_Senso

r

3p/Wir

e

SCAN Motor

4-in-1 Only

ADF Joi

nt PBA

(FR1, 1 La

ye

r)

4p/Wir

e

W-LAN

USB Host

L

USB Host

(FR4,

2

ay

er)

6p/Wire

w

ith Shiel

d

5p/Wire

w

ith Shiel

d

Position Sensor

12p/Wire

2p/Wir

e

8p/Wire

(TEP

/INTERLOCK

)

COVER OPEN

(5V On/off)

Temp Sensor

2p/Wir

e

OPC FUSER

CN15

CN14

CN3

CN4

CN31

CN28

CN9

CN32

CN1

CN33

CN30

CN10

CN12

CN17 CN16 CN13

CN26 CN19 CN24 CN20 CN22 CN23 CN18

4p/Wir

e

CN29

CN8

CN7

CN27

CN5