51
XG-C55X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Yes
Yes
Yes
No
No
No
6
7
Check the clock signal of IC8015
by FL8114.
Is the clock signal normal?
IC8015 is defective.
Go to "Checking of Video Sync
Signal".
IC8025 or its periphery is defective.
Checking of Video Sync Signal
Measure the signal at pin (10) of
IC8363 on the oscilloscope.
(Checking of vertical sync signal)
Is the vertical sync signal normal?
Measure the signal at pin (6) of
IC8363 on the oscilloscope.
(Checking of horizontal sync signal)
Is the horizontal sync signal
normal?
Go to "Confirmation of Input
Signal Setting".
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