Service manual

22
TROUBLESHOOTING HINTS
Is OSD normal?
Black
No
No
Yes
Is the contrast
at its maximum?
3. No raster
Set the contrast
up to Max.
Yes
Yes
Check If
the CON3 wafer is
well connected at
the LCD panel.
No
Yes
Is the output
of Scaler correct?
No
Yes
Is the input of
Scaler correct?
Replace the main board
(or replace Scaler).
5-1. No Video