Sharp PG-M20X Service Manual page 44

PG-M20X
» PC I/F Unit-11/12
Checking of Video Sync Signal
Check pin (10) of IC8363 by
oscilloscope.
(Checking of vertical sync signal)
Is the vertical sync signal normal?
Yes
Check pin (6) of IC8363 by
oscilloscope.
(Checking of horizontal sync signal)
Is the horizontal sync signal
normal?
Yes
Are the horizontal sync signal and
vertical sync signal outputted at
TL8130 and TL8131?
Yes
Is there the specified clock
(13.5 MHz) signal at FL114?
Yes
End
No
No
Go to "Confirmation of Input Signal
Setting".
No
IC8015 and its periphery are
defective.
No
IC8015 and its periphery are
defective.
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