Read Sharp XV-Z9000E (serv.man3) Service Manual online
44
XV-Z9000U/E
3
Checking the DSUB input.
Feed the PC-RGB signal to INPUT5.
Select INPUT5 as the input.
Check to see if there are the R, G
and B signals at pins (126), (136)
and (146) of IC8004.
and B signals at pins (126), (136)
and (146) of IC8004.
DSUB connector
or its peripheral
part defective.
or its peripheral
part defective.
IC8302 or its peripheral circuit
defective.
defective.
IC8025, IC8004 or their peripheral
circuit defective.
circuit defective.
NO
YES
NO
YES
Does the image appear?
Are there the R, G and B signals?
YES
NO
Is there any distortion with the image?
Check the vertical and horizontal sync
signals at pin (6) of IC8364 and pin (6)
of IC8385.
signals at pin (6) of IC8364 and pin (6)
of IC8385.
Sync separation circuit, IC8354m
IC8365 or their peripheral circuit
defective.
IC8365 or their peripheral circuit
defective.
NO
NO
YES
Are the sync signals as specified?
YES
Are there the horizontal and vertical sync
signals at TL8130 and TL8131?
signals at TL8130 and TL8131?
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