User`s manual

Chapter 4 Troubleshooting

Problems Possiblecauseandremedy

7. Thescreenistoobrightortoodark. • Adjust using <Brightness> or <Contrast>. (The LCD

monitor backlight has a xed life span. When the screen

becomes dark or begins to icker, contact your local

dealer.)

• Turn on the Auto EcoView function. (see page 18) The

monitor detects the environmental brightness to adjust

the screen brightness automatically.

8. 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.

9. Green/red/blue/whitedotsordefectivedotsremain

onthescreen.

• This is due to LCD panel characteristics and is not a

failure.

10. Thedisplayimageisappearedinlengthwise. • Check whether the kind of cables connected with the

monitor and the PC. (Connect the monitor and cables

correctly by referring to “Connecting Cables” in Setup

Manual (page 3).)

11. Theadjustmentmenudoesnotappear. • Check whether the operation lock function works. (page

18)

12. Theauto-adjustmentfunctiondoesnotwork

correctly.

• This function does not work when digital signal is input.

• This function works correctly when an image is fully

displayed over the display area.

It does not work properly when an image is displayed

only on a part of the screen (DOS prompt window, for

example) or when a black background (wallpaper, etc.) is

in use.

This function does not work correctly with some graphics

boards.

13. Noaudiooutput • Check whether volume is set to “0”.

• Check the settings of the PC and the audio playback

software.

Touchpanelproblems

Problems Possiblecauseandremedy

14. Cursorpositionisnotcorrect./Cursorjumps. • Turn off and on the monitor. If the symptom is not

improved, perform the calibration on the monitor.

• Touch with one nger only.

15. Notouchsound. • The touch sound may not be output from the external line

out of the PC depending on the hardware conguration.

• Under Windows 7, touch sound is only output through

the audio output terminal of the PC. To hear touch sound,

connect speakers.