Sharp XG-C55X Service Manual page 45

TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Checking of Sync Signal
Is there the vertical sync signal at
pin (11) of IC8363?
Yes
Is there the horizontal sync signal
at pin (5) of IC8363?
Yes
Is there the vertical sync signal at
TL8131?
Yes
Is there the horizontal sync signal
at TL8130?
Yes
Are both the vertical and horizontal
sync signals in appropriate timing?
No
Is the signal generator
(input source) appropriate?
Yes
R997, R996, SC8002 or their
periphery is defective.
No
No
Make confirmation of input signal
setting.
R997, R996, SC8002 or their
periphery is defective.
No
No
IC8363 is defective.
Yes
The sync signals are as specified.
End of checking.
No
Set the signal source
appropriately.
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XG-C55X