Service manual

20
Is OSD normal?
Black
No
No
Yes
Yes
Is the contrast
at its maximum?
(3) No raster
or Check SDRAM.
Set the contrast
up to Max.
Next Page.
Yes
No
Yes
Is the output of
ADC correct?
No
Yes
Is the input of
ADC correct?
Check the video
input signal.
Replace the main board
(or replace ADC).
Yes
Check the LCD panel
or pin 41 wafer and
con-ass’y.
No
Yes
Is the output
of Scalier correct?
No
Yes
Is the input of
Scalier correct?
Replace the main board
(or replace ADC).
5-1. No Video