Read Sharp XV-Z21000 (serv.man3) Service Manual online
XV-Z20000/XV-Z21000/DT-5000
5 – 14
Check the DVI analog input.
Supply a PC-RGB analog signal to
DVI.
DVI.
Select DVI using the key on the main
unit or the remote control.
unit or the remote control.
Check the input signal type.
When checking the optional input signal
on the menu display, set it to "A. RGB".
on the menu display, set it to "A. RGB".
Is a projection image displayed?
YES
END.
NO
Is an RGB signal present at pins (2),
(8), and (14) of IC5652?
(8), and (14) of IC5652?
NO
Check in the vicinity of the DVI connector.
YES
Is a vertical synchronization signal
present at TL5505?
present at TL5505?
NO
IC5502 or peripheral parts are defective.
YES
Is a horizontal synchronization signal
present at TL5504?
present at TL5504?
NO
IC5503 or peripheral parts are defective.
YES
Is a synchronization signal present at
TL5509 and TL5515?
TL5509 and TL5515?
NO
IC5511 is defective.
YES
IC5652 or after is defective.
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