Sharp XV-Z9000U Service Manual page 42

XV-Z9000U/E
Checking the video input
Feed the composite video
signal to INPUT4.
Using the front panel key
or the remote control,
select INPUT4.
Select VIDEO as the type
of signal on the user menu.
5
Does the image appear?
Is the image disturbed?
Is the contour as specified?
There is no problem with
the video input. End.
Is there the video signal at
pin (72) of IC8338?
Is the video signal as
specified?
NO
YES
YES
NO NO
Go to "Checking the video
NO
sync signal".
YES
YES
NO IC8338 defective.
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Go to "Checking the video
sync signal".
Carry out the process
adjustment.
5