48
140S LCD
Repair Flow Chart
Block Diagram
AC IN
AC adapter
Main panel
640Vrms
Inverter panel
Fluorescent
Lamp
LCD panel
Front control
panel
18V DC
18VCC
18V DC
No power
(power indicator off)
Check
AC adapter output
18V DC
No
Yes
OK
Replace
AC adapter
Check
Front control panel
(power SW)
Replace Main panel
9
Go to cover page
3
Back
Forward
4