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Chapter5Troubleshooting
Imaging problems (for both digital and analog)
Problem
Possible cause and remedy
3. The screen is too bright or too dark.
• Use<Brightness>or<Contrast>intheAdjustment
menutoadjustit.(TheLCDmonitorbacklighthasa
limitedlifespan.Whenthescreenbecomesdarkor
beginstoflicker,contactyourlocaldealer.)
• TurnontheAutoEcoViewfunction.Themonitor
detectstheenvironmentalbrightnesstoadjustthe
screenbrightnessautomatically.
4. Characters are blurred.
• CheckwhetherthePCisconfiguredtomeetthe
resolutionandverticalscanfrequencyrequirements
ofthemonitor(referto“CompatibleResolutions/
Frequencies”intheSetupManual.).
• Use<Smoothing>intheAdjustmentmenutoadjustit
(see
“Tomodifyblurredcharacters/lines<Smoothing>”
).
5. Afterimages appear.
• AfterimagesareparticulartoLCDmonitors.Avoid
displayingthesameimageforalongtime.
• Usethescreensaverorpowersavefunctiontoavoid
displayingthesameimageforextendedperiodsof
time.
6. Green/red/blue/white dots or defective
dots remain on the screen.
• ThisisduetoLCDpanelcharacteristicsandisnota
failure.
7. Interference patterns or pressure marks
remain on the screen.
• Leavethemonitorwithawhiteorblackscreen.The
symptommaydisappear.
8. Noise appears on the screen.
• IntheAdjustmentmenu,set<Overdrive>to“Off”(see
“Tosetoverdriveintensity<Overdrive>”(page19)
).
• WhenenteringthesignalsofHDCPsystem,the
normalimagesmaynotbedisplayedimmediately.
Imaging problems (for analog only)
Problem
Possible cause and remedy
9. Display position is incorrect.
• Use<Position>intheAdjustmentmenutocorrectthe
imageposition(see
“Tocorrectthescreenposition
).
• Iftheproblempersists,usethegraphicsboard’sutility
ifavailabletochangethedisplayposition.
10. Vertical bars appear on the screen or a
part of the image is flickering.
• Use<Clock>intheAdjustmentmenutoadjustit(see
“Toeliminateverticalbars<Clock>”(page12)
).
11. Whole screen is flickering or blurring.
• Use<Phase>intheAdjustmentmenutoadjustit(see
“Toremoveflickeringorblurring<Phase>”(page13)
).
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