Sharp XG-C55X Serviceanleitung Seite 50

XG-C55X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Checking of Video Input
Feed the composite video signal
to INPUT3.
Select INPUT3 using the set's key
or the remote controller.
5
Does the picture appear?
Is there any disturbance in the
picture?
Are the colors normal?
The video input is normal. End.
Is the video signal inputted to
C8141?
6
No
Yes
Yes
No
Go to "Checking of Video
Sync Signal".
No
Yes
No
Yes
Is there the signal at R8114?
Q8002 or its periphery is
defective.
The INPUT/OUTPUT PWB is
defective.
No
Yes
No
Is there the signal at pin (3)
of SC8002?
50
Go to "Checking of Video
Sync Signal".
Carry out the process
adjustment.
5
Yes
R8114 or its periphery is
defective.