Sharp XG-P25X Service Anleitung Seite 56

XG-P25X
TROUBLE SHOOTING TABLE FOR PC I/F UNIT
Checking the DVI analog input
Feed the DVI analog signal to the
INPUT3 terminal.
Select INPUT3 for the input
terminal.
Does the image appear?
YES
Is the image distorted?
NO
3
Are the sync signals of
separation type?
YES
Check the vertical sync signal and
the horizontal sync signal at pin (6)
of IC8330 and pin (6) of IC8331,
respectively.
Are the sync signals as
specified?
YES
Are there the horizontal and
vertical sync signals at TL8130
and TL8131?
YES
IC8302 or its peripheral parts
defective.
NO
See if there are the R, G and B
YES
signals at pins (126), (136) and
(141) of IC8004.
Are there the R, G and B signals?
YES
NO
Check the DVI SOG circuit.
NO
Sync separation circuit IC8330 or
IC8331 defective.
NO
IC8025, IC8004 or their
peripheral parts defective.
56
(Continued)
NO
DVI connector or its peripheral
parts defective.