Sharp XG-C50X Service Manual page 45

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?
Yes
Is there any disturbance in the
picture?
No
Are the colors normal?
Yes
The video input is normal. End.
Is the video signal inputted to
C8141?
Yes
6
No
Yes
Go to "Checking of Video
Sync Signal".
No
No
Is there the signal at R8114?
Yes
Q8002 or its periphery is
defective.
The INPUT/OUTPUT PWB is
defective.
45
Go to "Checking of Video
Sync Signal".
Carry out the process
adjustment.
5
No
No
Is there the signal at pin (3)
of SC8002?
Yes
R8114 or its periphery is
defective.
XG-C50X