Display won't appear.
Is a standard-accessory, specified-
rating AC adaptor being used?
Is power voltage suitable?
Yes
Yes
Is the AC adaptor output voltage
normal?
Yes
- Check the cable connection between the power
board ASSY and display board ASSY.
- Replace the power board ASSY.
- Replace the display board ASSY.
Check power source.
Use a standard-accessory,
specified-rating AC
adaptor.
Replace the AC adaptor.
No
No
No