Samsung SCX-483xFD Service Manual page 38

SCX-483xFR/563xFR/573xFW Main Controller is composed with below components
-. CHORUS4 : To generate the printable video data and control engine
Embedded USB2.0 device, Host channel
-. On board DDR2 SDRAM and external DDR2 SO-DIMM : system memory
On board DDR2 : 256MB
External DRR2 SO-DIMM : 512MB
-. Giga Ethernet PHY : Network printing
-. Nor Flash(32MB) : Program memory
-. Engine Controller(LEPC1) : ADC, DAC, Clutch, Fuser control
The Main Controller manages an Electro-photography system, controls the Video Data of printing images
from Main Board to LSU, provides high-voltages and PWMs, adjusts temperature in the fusing system, reads
sensor signals and controls SCF option.
The Main controller also controls OPE and Giga N/W PHY [Network], USB Device, Wireless Module.
Service Manual
SCX-483x/5x3x series
2. Product specifications and descriptions
CPU: Chorus
Clock: Mhz
DCDC
3.3V
system
ST1S10
DCDC
1.1V
5V
24VS1
ST1S10
CHORUS 4
1.8V
DDR2
DCDC
ISL88550
5V
24V2 24V1
SMPS
A
0.9V
VTT
[ Main Controller Diagram ]
SCX-4833FR,SCX-5637FR,SCX-5737FW
Power S/W
PHY IC
RTL8211D
LAFE1001
2-29
Rainier
Block Diagram V0.3
2010.09.30
Samsung Electronics