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Imaging problems (for both digital and analog)
3. The screen is too bright or too dark.
4. Characters are blurred.
5. Afterimages appear.
6. Green/red/blue/white dots or defective
dots remain on the screen.
7. Interference patterns or pressure marks
remain on the screen.
8. Noise appears on the screen.
9. The screen is whitish or blackish.
Imaging problems (for digital only)
10. The color shown on the display is not
correct (for HDMI input).
11. The screen flashes (for HDMI input)
Problem
Problem
Possible cause and remedy
• Use"Brightness"or"Contrast"intheSettingmenuto
adjustit.(TheLCDmonitorbacklighthasalimitedlife
span.Whenthescreenbecomesdarkorbeginsto
flicker,contactyourlocaldealer.)
• TurnontheAutoEcoViewfunction.Themonitor
detectstheenvironmentalbrightnesstoadjustthe
screenbrightnessautomatically.
• CheckwhetherthePCisconfiguredtomeetthe
resolutionandverticalscanfrequencyrequirements
ofthemonitor(see"2-1.CompatibleResolutions/
Formats"(page13)).
• Use"Smoothing"intheSettingmenutoadjustit(see
"Tomodifyblurredcharacters/lines"Smoothing""
(page27)).
• AfterimagesareparticulartoLCDmonitors.Avoid
displayingthesameimageforalongtime.
• Usethescreensaverorpowersavefunctiontoavoid
displayingthesameimageforextendedperiodsof
time.
• ThisisduetoLCDpanelcharacteristicsandisnota
failure.
• Leavethemonitorwithawhiteorblackscreen.The
symptommaydisappear.
•
IntheSettingmenu,set"Overdrive"to"Off"(see"To
setoverdriveintensity"Overdrive""(page23)).
• WhenenteringthesignalsofHDCPsystem,the
normalimagesmaynotbedisplayedimmediately.
• Use"ColorSpace"ofthe"Screen"submenu(forthe
HDMIinput),"BlackLevel"(see"Toadjustblacklevel
"BlackLevel""(page17)),and"Contrast"(see"Toadjust
contrast"Contrast""(page17))intheSettingmenuto
adjustit.
Possible cause and remedy
• Changethecolorspaceofthevideosignalin"Screen"
-"ColorSpace"undertheSettingmenu.
• Transmittablesignalsdifferonthecategoryofthe
HDMIcable.CheckwhetherthecablesupportHigh
Speed.
Chapter6Troubleshooting
39
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