XV-Z9000E (serv.man3). Service Manual - Part 2 - Troubleshooting (32-48) - Sharp Projector Service Manual (repair manual). Page 6

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37
XV-Z9000U/E
YES
YES
Checking the sync signal
Is there vertical sync signal 
at TL8134?
Check the input signal 
setting.
Input PWB defective.
Is there horizontal sync 
signal at TL8133?
NO
Input PWB defective.
NO
YES
YES
Is there vertical sync signal 
at TL8131?
IC8302, IC8325, IC8299 or 
their peripheral circuits 
defective.
Is there horizontal sync 
signal at TL8130?
NO
NO
YES
YES
Are both the vertical and 
horizontal sync signals 
timely?
There is no problem with 
the sync signal. 
End.
Make the specified signal 
source settings.
Is the signal generator 
(input source) as 
specified?
NO
NO
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