Check the DVI digital input.
Supply a PC-RGB digital signal
to INPUT5.
Select INPUT5 using the key on
the main unit or the remote control.
Check the input signal type.
Is a projection image displayed?
NO
Is a clock signal present at
R8685?
YES
Is a pulse present at pins (10 - 37)
and (48 - 77) of IC8298?
YES
Is a synchronization signal present
at TL8023 and at pins (47) and (48)
of IC8298?
YES
Is a synchronization signal present
at TL8130 and TL8131?
YES
Check IC8025 or after.
When checking the optional input
signal on the menu display, set it to "D.
PC RGB".
YES
End.
NO
Check the DVI connector
peripherals. IC8298 is defective.
NO
IC8298 is defective.
NO
IC8298 is defective.
NO
IC8302 is defective.
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XV-Z12000