Read Sharp PG-C45X (serv.man11) Service Manual online
39
PG-C45X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
IC8025 or IC8013 is defective.
Go to "Checking of Sync Signal".
Is there the signal at pin (55) of
SC8002 (B-to-B connector)?
SC8002 (B-to-B connector)?
Somewhere in the signal route is
defective. Check the capacitors
and resistors between SC8002
and IC8013.
defective. Check the capacitors
and resistors between SC8002
and IC8013.
Make "Confirmation of Input
Signal Setting".
Signal Setting".
Is there the video signal at the land
of C8070?
of C8070?
Yes
No
Yes
Confirmation of Video Input
The signal source or connector is
defective.
defective.
End
Is the right item selected from input
menu?
menu?
Are the connectors connected
correctly?
correctly?
Yes
No
Yes
Confirmation of Input Signal
Setting
Setting
Select the right item.
2
No
Connect the connectors correctly.
1
No
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