Epson Elp-3500 Service Manual Page 84

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EPSON ELP-3500 Service Manual
4-7
Picture Quality
START
(Audio is OK.)
Is there an intermittent
sync signal problem?
Replace the driver board.
Is there still an
intermittent sync signal
problem?
Replace the main board.
NO
NO
YES
YES
NO
NO
NO
NO
NO
NO
Are there ghosts?
Replace the driver
board.
Are there still ghosts?
Can you still see
ghosts?
Replace the main
board
Replace the optical
block unit.
YES
YES
YES
YES
YESYES
YES
YES
YES
Is there any flicker?
Adjust flicker.
Is there still
flicker?
Replace the driver
board.
Is there flicker?
Replace the optical
block unit.
NO
Is the white balance
OK?
Adjust the white
balance.
NO
Is the white balance
OK now?
Replace the driver
board.
NO
Is the white balance
OK?
NO
Replace the optical
block unit.
Go to “Function 1.”
Figure 4-6.
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