Samsung CLX-8540ND - Page 40

Product Overview
Service Manual
2-29
Samsung Electronics
2.3.2.4 OPE_Main Board
The OP_main board controls the WVGA(800x600) 7” Color TFT LCD unit, and communicates with Video
controller through USB1.1. The OP_main board is connected with Key & Key_Sub boards which are used for
scan and fax functions.
The OP_main board includes an ARM-based CPU (S3C2413C), a 32MB NOR Flash ROM, a 64MB DDR1
SDRAM memory, and a TSP control unit.
DDR MEMORY
(64MB)
Main IF (USB)
LCD Interface
Main IF (power)
OPE Key sub
NOR FLASH
(32MB)
JTAG
Touch ScreenBack Light Unit
Debugger
OPE Key
MCU (S3C2413)
LCD Interface
OPE Key sub
NOR FLASH
(32MB)