Block Diagram
Samsung Electronics Service Manual
7-17
7
7. Block Diagram7.1 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