Read Sharp XV-Z21000 (serv.man3) Service Manual online
XV-Z20000/XV-Z21000/DT-5000
5 – 7
Check the RGB input.
Input the sync separation RGB signal
to C1 or C2 (except 480i and 576i).
to C1 or C2 (except 480i and 576i).
Select C1 or C2 using the operation
key or the remote control.
key or the remote control.
Is a projection image displayed?
NO
Go to "Check the video input”.
YES
Is the picture distorted?
YES
Go to "Check the synchronization signal".
NO
Are all three colors (R, G, and B)
being output?
being output?
NO
Go to "IC5652 peripheral check".
YES
Is the image frame normal?
NO
Go to "IC5652 peripheral check".
YES
End
Check the video input.
Is the signal generator (input source)
set correctly?
set correctly?
NO
Set the signal generator (input source)
correctly.
correctly.
YES
Is the video signal present at pin (8)
of IC5209?
of IC5209?
NO
Check the installation of the main unit.
The main unit is defective.
The main unit is defective.
YES
Is the video signal present at
TL5659?
TL5659?
NO
Check the peripheral circuit of IC5209.
YES
Go to "Check the synchronization sig-
nal".
nal".
Go to "IC5652 peripheral check".
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