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38 6. TROUBLESHOOTING
Problems Points to check with possible solutions
11. Afterimages appear.
When the screen image is changed after displaying
the same image for a long period, an afterimage
may appear. The “Afterimage” can be removed
gradually by changing the displayed image. Use the
“Off Timer” function and avoid keeping the screen
on all the time. (p.22)
12. The screen has defective pixels (e.g.
slightly light or dark).
This is due to the characteristics of the panel itself
and not the LCD product.
13. Fingerprints remain on the screen.
Leaving the screen white may solve the problem.
14. The noise appears on the screen.
Change the mode in <Signal Filter> in the <Screen>
menu.
15. The <Smoothing> cannot be
selected.
<Smoothing> is disabled when the screen is
displayed in the 1600 x1200.
The image size is doubled both in horizontally and
vertically to (i.e. 1600 x 1200 enlarged from 800 x
600) provide clear focus which does not require
this function.
16. The Main menu of ScreenManager
does not operate.
The adjustment lock is probably on. To unlock:
switch the LCD monitor off. Then, while pressing
the Auto adjustment button, switch the power on.
(p.22)
Check that the FineContrast mode is not activated.
(p. 18)
17. The FineContrast mode does not
operate.
Check that the Main menu of ScreenManager is
not activated. (p.20)
18. The Auto adjustment button does not
operate.
The adjustment lock is probably on. To unlock:
switch the LCD monitor off. Then, while pressing
the Auto adjustment button, switch the power on.
(p.22)
19. Frequency does not change after
installing “Monitor information file”
in the attached utility disk on
Windows 95/98/2000/XP.
Use the graphics board’s utility software to change
the input signal frequency.