PG-M25XE (serv.man11). Troubleshooting table - Sharp Projector Service Manual (repair manual). Page 7

Feed the 480i component signal in INPUT 1.
Select INPUT 1 using the set's key or the remote controller.
Select 480i among the special modes on the user 
menu screen.

Is 480i selected among the special 
modes?

Does the contour of picture 
appear clear.

Confirmation of synchronization. 
Is Y signal including sync signal 
inputted to pin (3) of IC2502?

Is picture outputted?

Is the color normal?

No

Is the signal type set to the 
component?

In case of monitor output, 
disconnect the monitor output 
cable.

Set the monitor output.
Check the monitor output 
equipment and cable.

No

Yes

Yes

No

Yes

Yes

No

Yes

Abnormal

No

Set the signal type.

IC8025 is defective.

Select 480i.

Restored to normal condition

Yes

End

Checking of DTV
 (480i Component Input)

Check IC8016 
(Video decoder).

Go to "Checking of 
Low-pass Filter Circuit"

Check IC3501 and its 
periphery.

Yes

No