Toshiba e-studio281c - Control Circuit for the Exposure Lamp

e-STUDIO281c/351c/451c © 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved
SCANNER
6 - 10
6.5.3 Control circuit for the exposure lamp
Fig. 6-12
Working conditions
LAMPON L - - - Exposure lamp ON signal Lamp turns ON at “L”
5VSWON L H - - +5VSW ON signal Controls +5VSW by CPU.
Normally “L”
WDTOUT H - L - Watchdog timer signal “L” is output when CPU is out of
control
LMPEN L - - H Exposure lamp enable signal Normally “L”
Xenon lamp O
N
OFF
Inverter
board
Exposure lamp
Scanner
CPU
SLG board
LMPON
5VSWON
WDTOUT
+5VSW
RN2401
RN1401
+24V
LMPEN
LAMP
LAMP