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Block Diagram
Samsung Electronics
Service Manual
7-1
7
7
7. Block Diagram
7.1 System Block Diagram
Chrous2
UART
CY25811
Main CLK
10.00MHz
USB2.0
FLASHROM
29LV800
SDRAM
8MB
Motor Drv.
A3977
Motor Drv.
A3977
Main
Motor
Scan
Motor
LSU
CIS
RESET IC
C
R
SMPS
HVPS
D
R
S
R
T
R
REG
REG
Exit
Sensor
Feed
Sensor
Cover
Open S/W
24V/5V
TRIAC
Thermistor
Fuser
Thermostat
LSU
OPE
HC
48C50
LCD
KEY
PC
Pickup
Solenoid
FAN 2
Scanner
A(1:20)
D(0:15)
5V
3.3V
1.8V
Main Board
P/Empty
Sensor
Engine Frame
Developer Unit
CY25814
Video CLK
16.59MHz
3.3V
MP
Sensor
FAN 1
CDRH S/W
MP
Solenoid
LED