Read Sharp PG-M20S (serv.man11) Service Manual online
47
PG-M20S
PG-M20X
PG-M20X
Checking of Video Sync Signal
Check pin (10) of IC8363 by
oscilloscope.
(Checking of vertical sync signal)
oscilloscope.
(Checking of vertical sync signal)
Check pin (6) of IC8363 by
oscilloscope.
(Checking of horizontal sync signal)
oscilloscope.
(Checking of horizontal sync signal)
Are the horizontal sync signal and
vertical sync signal outputted at
TL8130 and TL8131?
vertical sync signal outputted at
TL8130 and TL8131?
Is the vertical sync signal normal?
Is the horizontal sync signal
normal?
normal?
Yes
Go to "Confirmation of Input Signal
Setting".
Setting".
No
Yes
Is there the specified clock
(13.5 MHz) signal at FL8114?
(13.5 MHz) signal at FL8114?
Yes
End
Yes
No
IC8015 and its periphery are
defective.
defective.
IC8015 and its periphery are
defective.
defective.
No
No
»
PC I/F Unit-11/12
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