Samsung SCX 4720FN Block Diagram

Block Diagram

Service Manual

9-1

Samsung Electronics

NIC I/F CA RD

Phy Chip

Ro ck y 2_ Plu s_SE C s yste m

Reset

MAIN MOTOR

FAST SRAM

(128 KBy te)

ADF UNIT

P-REGI, P-DET, P-POS

SENSOR

CLUTCH(TBD)

ADF M OTOR DRIVER

TEA3718 X 2EA

FLA TEN

MOTOR

DRIVER

TEA3718 X 2EA

FLA TEN M OTOR

STEP MOTOR

FLATEN COVER SENSO R

FUSER

INLET &

POWER S/W

HVPS

SMPS

PAPER EMPTY

SENSOR

+5V

+24V

+24VS

AC 110V / 220V

IEEE1284

USB 2.0

USB Dr iver

ISP15 82

USB HOST

OTG242

THERM.

UART I/F

Super 1284

SSD

MODEM

SFX336

33.6KBP

AUDIO

Drv.

COLOR CCD

600 D PI

HT82V26

AFE

CCD DRIVING

PART

LSD

CX2049

3

SCF(option)

SENSOR X 1EA

MOTOR DRIVER

A3977 X 1EA

SIO I/F

USB HOST

JACK

ROM BUS

NAND (32MB x

SDRAM (32MB x

MEMORY DIMM

DRAM

BUS

RAM

BUS

DRAM Bac kup

EXT.

PHONE

M ODULAR

JA C K

LINE

CRUM

CARTRIDGE INFO.

MPF CLUTCH

MPF SENSOR

MAIN CLUTCH

REGI. CLUTCH

PTL

36P

5P

4P

11P

6P

2P

2P

3P

2P

3P

4P

24P

11P

2P

2P

26P

4P

4P

12P

2P

16P

3P

POWER

S/W

LSU

OPE

¡

MICOM¡LCD/LED Drive¡Key Scan

LCD, 16*2 L INES

NETWORK

40P/60P

EXIT SENSOR

FEED SENSOR

COVER S/W

MP EMPTY

SENSOR

MHV

SUPPLY

DEV

THV

OPC GND

9

9

9. Block Diagram