16 Chapter4Troubleshooting
4-2. Imaging problems
Problem Possible cause and remedy
1. The screen is too bright or too d ark. • Adjustthebrightness(brilliance)ofthescreen(see“2-
3.AdjustingBrightness(Brilliance)”(page9)).(TheLCD
monitorbacklighthasalimitedlifespan.Whenthescreen
becomesdarkorbeginstoicker,contactyourlocalEIZO
representative.)
2. The screen suddenly b ecame dark. /
The brightness (brillianc e) of the screen
cannot be set to or higher than 77% or
60%.
• Themonitoralwaysmonitorsitsinternaltemperature.
Iftheinternalmonitorreachesahightemperatureand
exceedsthespeciedvalue,themonitorwillautomatically
enterthefollowingstatetodecreasethetemperature.
- Ifthebrightness(brilliance)ofthescreenexceeds77%
or60%,reducethesettingvalueto77%or60%.
- Thebrightness(brilliance)ofthescreencannotbesetto
orhigherthan77%or60%.
(Thesettingvalueforbrightness(brillianc e)isdivided
into2stepsaccordingtotheinternaltemperatureofthe
monitor.)
Thisstatewillreturntotheoriginalwhentheinternal
temperaturedecreases.
Iftheinternaltemperatureincreasesfurtherevenaf ter
decreasingthesettingvalueforbrightness(bri lliance),a
“WARNING”messageisdisplayedandthemonitorpower
automaticallyturnsoff.(Powerindicatorashesorange.)
3. Characters are blur red. • CheckwhetherthePCisconguredtomeettheresoluti on
andverticalscanfrequencyrequirementsofth emonitor.
(“CompatibleResolutions”intheSetupManual.)
4. Afterimages ap pear. • AfterimagesareparticulartoLCDmonitors.Avoid
displayingthesameimageforalongtime.
• Usethescreensaverorpowersavingfunctiontoavoid
displayingthesameimageforextendedperiodsoftime.
5. Green/red/blue /white dots or defective
dots remain on the screen.
• ThisisduetoLCDpanelcharacteristicsandisnota
failure.
6. Interferenc e patterns or pressure marks
remain on the screen.
• Leavethemonitorwithawhiteorblackscreen.The
symptommaydisappear.
7. N oise appears on the screen. • WhenenteringthesignalsofHDCP,thenormalimages
maynotbedisplayedimmediately.
8. Cloudiness cannot be r emoved even
after wiping the screen. / The re is dew
condensation on the interio r side of the
glass.
• Whencloudinesscannotberemovedevenbywiping
thescreen,dewcondensationmayhaveoccurredon
theinteriorsideoftheglassthatprotectsthepanel.In
thiscase,turnonthemonitoranddisplaysomethingon
screen.Thedewcondensationwilldisappearafterawhile.
4-3. Other problems
Problem Possible cause and remedy
1. The message below appear s on screen.
• “WARNING:Fannotworking”
• Thismessageappearswhenthemonitor’scoolingf anis
notoperatingcorrectly.Checkthestateofthecoolingfa n
ontherearofthemonitor.
2. The operation but tons do not work. • Checkwhethertheoperationlockfunctionisac tive(see
“2-6.LockingButtons”(page10)).Ifthefunctionisactive,
“Locked”isdisplayedonthescreen.