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Chapter 5 Troubleshooting
Problems Possible cause and remedy
5. Afterim ages appear Afterimages are particular to LCD monito rs. 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 d efective dots
remain on the screen.
This is due to LCD panel characteristics and is not a
failure.
7. Interfe rence patterns or pre ssure marks remain
on the screen.
Leave the monitor with a white or black screen. The
symptom may disappear.
8. Noise appear s on the screen. When entering the signals of HDCP system, the
normal images may not be displayed immediately.
9. Display posit ion is incorrect. Adjust image position using <Hor.Position> or <Ver.
Position>. (page 13)
If the problem persists, use the graphics board ’s utility
if available to change the display position.
10. Ver tical bars appear on t he screen or a part of the
imageisickering.
Adjust using [Clock]. (page 13)
11.W holescreenisickeringorblurrin g. Adjust using [Phase]. (page 13)
12. U pper part of the scree n 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. T he adjustment menu does n ot appear. Check whether the operation lock function works.
(page 21)
14. M ode menu does not appear. Check whether the operation lock function works.
(page 21)
15. T he auto adjust function do es not work correctly. This funct ion 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 case s. 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 correct ly with some
graphics boards.