XG-P25XE (serv.man12). Troubleshooting table - Sharp Projector Service Manual (repair manual). Page 12

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XG-P25X
47
TROUBLE SHOOTING TABLE FOR PC I/F UNIT 
(Continued)
Readjust the signal 
source settings.
Checking the sync signals
Is there the vertical sync 
signal at TL8134?
Is there the horizontal sync 
signal at TL8133?
Check the input 
signal settings.
Input PWB defective.
Is there the vertical sync 
signal at TL8131?
Is there the horizontal sync 
signal at TL8130?
IC8302, IC8325, IC8299 
or their peripheral parts 
defective.
Are both the vertical and 
horizontal sync signals in 
good sync?
Is the signal generator 
(source) as specified?
Input PWB defective.
The sync signals are 
okay. End.
2
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
NO
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