Sharp XG-C55X - Page 50

50
XG-C55X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
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Checking of Video Input
Feed the composite video signal
to INPUT3.
Select INPUT3 using the set’s key
or the remote controller.
Does the picture appear?
Go to "Checking of Video
Sync Signal".
Carry out the process
adjustment.
Is there any disturbance in the
picture?
Go to "Checking of Video
Sync Signal".
Are the colors normal?
The video input is normal. End.
Is the video signal inputted to
C8141?
Is there the signal at R8114?
Is there the signal at pin (3)
of SC8002?
R8114 or its periphery is
defective.
Q8002 or its periphery is
defective.
The INPUT/OUTPUT PWB is
defective.