Samsung ML-2251N/XAA - Block Diagram

9
9
9-1
Samsung Electronics
B LOCK DIAG R A M
Service Manual
9. Block Diagram
SDR AM
(16MB)
FLASH
MEMORY
( 2MB
)
POWER
CORD
+24V
MHVPWM BIASPWM
THVPWM
Crystal
12MHz
Main
Clock
Power On Reset
F.G
LSU
SPGPm
PANEL
Solenoid
PTL
MAINMO TOR
THERMSTOR
HEATER-AC
MHV
OPCGND
SUPPLY
DEV
THV
SMPS Block
FUSER ASSY
EXIT-SENSOR
FEED-SENSOR
P/EMPTY-SENSOR
SENSOR
MP
MPF-SENSOR
-
FAN
IN-LET
-+
GND
+24V +5V
Freq.
Spread
Cover- Open Switch
HVPS Block
Controller Block
To Controller
USB2.0
+3.3V
IEEE1 284
EEPROM
Voltage
Detector
A3977
Motor Driver
CARTRIDGE
INFO.
SCF
(Option)
(Option)