45
XG-C55X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Is there the horizontal sync signal
at TL8130?
Is there the vertical sync signal at
TL8131?
Make confirmation of input signal
setting.
R997, R996, SC8002 or their
periphery is defective.
Is there the vertical sync signal at
pin (11) of IC8363?
Is there the horizontal sync signal
at pin (5) of IC8363?
Yes
Yes
Yes
Are both the vertical and horizontal
sync signals in appropriate timing?
Yes
Is the signal generator
(input source) appropriate?
No
R997, R996, SC8002 or their
periphery is defective.
Yes
No
IC8363 is defective.
The sync signals are as specified.
End of checking.
No
Yes
No
No
No
Checking of Sync Signal
Set the signal source
appropriately.
2
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