Sharp XG-P25X - Page 55

XG-P25X
57
TROUBLE SHOOTING TABLE FOR PC I/F UNIT (Continued)
The DVI analog signals are SOG-separated by
CXA3516R. The Green signal is fed to the SOGIN2
terminal. The DVI SOG sync signal is selected using the
bus switch (IC23).
Checking the DVI SOG circuit
Is there the horizontal sync
signal at TL8082?
Is there the Green signal at pin
(135) of IC8004?
IC8004 or its peripheral
parts defective.
DVI connector or its peripheral
parts defective.
Is there the sync signal at
TL8136?
Are the signals at pin (4) of
IC8023 and pin (4) of IC8336
both at low level?
IC8001 defective.
IC8023 or IC8336 defective.
The DVI SOG circuit is okay.
YES
YES
YES
NO
NO
YES
NO
NO