Sharp PG-C30XU Service Manual page 40

PG-C30XU
TROUBLE SHOOTING TABLE
With the contrast control at maximum,
does the image appear?
A
Does the on-screen display function?
Power on
Is the right input selected?
Yes
Are the PC, video and LCP cables as
specified and properly connected?
Yes
No
Is the voltage at CON3 (P8502)
connector as specified?
Yes
Hook up a personal computer.
Does the image appear?
Yes
Is the image as specified?
Yes
Is the image's color as specified?
Yes
Yes
Does the remote control function?
Yes
End
(Continued)
No
Select the right input with remote
control.
No
Use the right cables or reconnect the
cables.
Yes
Readjust the video system.
No
Power circuit faulty.
No
Go to "Checking the clock circuit and
its peripheral circuits".
No
Check the sync signal circuit and its
peripheral circuits.
No
Check the video circuit and its
peripheral circuits.
No
Go to "Checking the OSD circuit and
its peripheral circuits".
No
Go to "Checking the remote control".
40