Sharp PG-M20X Service Manual page 37

» PC I/F Unit-4/12
Confirmation of Video Input
Make "Confirmation of Input
Signal Setting".
Is there video signal at the land
of C8070?
Yes
Go to "Checking of Sync Signal".
IC8025 or IC8013 is defective.
Confirmation of Input Signal Setting
Is the input menu selected
correctly?
Yes
Are the connectors connected
correctly?
Yes
End
No
Is there signal at the terminal C2 of
P8001 (DVI connector)?
Somewhere in the signal route is
defective. Check the capacitors and
resistors between the connector
and IC8013.
The signal source or connector
is defective.
No
Select the input menu correctly.
No
Connect the connectors correctly.
37
No
Yes
2
1
PG-M20X