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Chapter 5 Troubleshooting
Problems Possible cause and remedy
4. Characters are blurred • Check whether the signal setting of your PC matches
the resolution and the vertical frequency settings
for the monitor. (refer to the Setup Manual “Setting
Screen Resolution”)
• Adjust using <Outline Enhancer>. (page 22)
5. Afterimages appear • Afterimages are particular to LCD monitors. Avoid
displaying the same image for a long time.
• Use the screen saver or power save function to avoid
displaying the same image for extended periods of
time.
6. Green/red/blue/white dots or defective dots
remain on the screen.
• This is due to LCD panel characteristics and is not a
failure.
7. Interference patterns or pressure marks remain
on the screen.
• Leave the monitor with a white or black screen. The
symptom may disappear.
8. Noise appears on the screen. • When entering the signals of HDCP system, the
normal images may not be displayed immediately.
9. Display position is incorrect.
• Adjust image position using <Hor.Position> or <Ver.
Position>. (page 16)
• If the problem persists, use the graphics board’s utility
if available to change the display position.
10. Vertical bars appear on the screen or a part of the
image is ickering.
• Adjust using <Clock>. (page 16)
11. Whole screen is ickering or blurring.
• Adjust using <Phase>. (page 16)
12. Upper part of the screen is distorted as shown
below.
• This is caused when both composite sync (X-OR)
signal and separate vertical sync signal are input
simultaneously. Select either composite signal or
separate signal.
13. The adjustment menu does not appear. • Check whether the operation lock function works.
(page 25)
14. Mode menu does not appear. • Check whether the operation lock function works.
(page 25)
15. The auto adjust function does not work correctly. • This function does not work when digital signal is
input.
• This function is intended for use on the Macintosh and
on AT-compatible PC running Windows. It may not
work properly in either of the following cases. It does
not work properly when an image is displayed only
on a part of the screen (command prompt window,
for example) or when a black background (wallpaper,
etc.) is in use.
• This function does not work correctly with some
graphics boards.