Sharp XV-Z10000 Service Manual page 44

XV-Z10000
Checking the DSUB input.
Feed the PC-RGB signal to INPUT5.
Select INPUT5 as the input.
Does the image appear?
YES
Is there any distortion with the image?
NO
3
Check the vertical and horizontal sync
signals at pin (6) of IC8364 and pin (6)
of IC8385.
Are the sync signals as specified?
YES
Are there the horizontal and vertical sync
signals at TL8130 and TL8131?
YES
IC8025, IC8004 or their peripheral
circuit defective.
Check to see if there are the R, G
NO
and B signals at pins (126), (136)
and (146) of IC8004.
YES
Are there the R, G and B signals?
Sync separation circuit, IC8354 and
NO
IC8365 or their peripheral circuit
defective.
NO
IC8302 or its peripheral circuit
defective.
44
NO
YES
DSUB connector
or its peripheral
part defective.