Read Sharp XV-Z21000 (serv.man3) Service Manual online
XV-Z20000/XV-Z21000/DT-5000
5 – 9
Check the input at the components
(480i and 576i are excluded).
(480i and 576i are excluded).
Supply a component signal to C1 or
C2. (Separate HV sync signal is not
connected.)
C2. (Separate HV sync signal is not
connected.)
Select C1 or C2 using the key on the
main unit or the remote control.
main unit or the remote control.
Is a projection image displayed?
NO
Go to "Check the SOG circuit.".
YES
Is the color normal?
NO
Perform the process adjustment.
Does the color become normal?
Does the color become normal?
NO
Go to “IC5652 peripheral check”.
YES
Is the image frame normal?
NO
Go to "IC5652 peripheral check".
YES
End.
Check the SOG circuit.
Is the signal generator (input source)
set correctly?
set correctly?
NO
Set the signal generator (input source)
correctly.
correctly.
YES
Is a composite synchronization signal
present at TL5513?
present at TL5513?
YES
The SOG circuit is normal.
NO
Is a composite synchronization signal
with the correct timing being output to
TL5511?
with the correct timing being output to
TL5511?
YES
The IC5514 peripheral circuit is defective.
NO
Is a video signal present at R5551?
YES
The SOG circuits (IC5512, IC5513 and
Q5570 - 09) are defective.
Q5570 - 09) are defective.
NO
The IC5209 peripheral circuit is
defective or the main unit is defective.
defective or the main unit is defective.
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