LG 27UD68 - TROUBLESHOOTING; Troubleshooting: No Screen Display; Troubleshooting: OSD Lock Issues; Troubleshooting: Image Retention

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ENG
ENGLISH
TROUBLESHOOTING
TROUBLESHOOTING
Nothing is displayed on the screen.
Isthemonitor'spowercordplugged
in?

Checkifthepowercordiscorrectlypluggedintothepoweroutlet.
IsthepowerLEDon?

Checkthepowercableconnectionandpressthepowerbutton.
IsthepoweronandthepowerLED
displayingwhite?

Checkthattheconnectedinputisenabled(Menu>QuickSettings
>Input).
IsthepowerLEDblinking?

Ifthemonitorisinsleepmode,movethemouse,orpressanykey
onthekeyboard,toswitchthedisplayon.

Checkifthecomputeristurnedon.
IstheOUTOFRANGEmessage
beingdisplayed?

ThisoccurswhensignalstransferredfromthePC(graphicscard)
areoutofthehorizontalorverticalfrequencyrangeofthemonitor.
PleaseseetheProductSpecificationsectionofthismanualtoset
theappropriatefrequency.
IstheNoSignalmessagebeing
displayed?

ThisisdisplayedwhenthesignalcablebetweenthePCand
themonitorismissingordisconnected.Checkthecableand
reconnectit.
The OSD lock message is being displayed.
Aresomefunctionsnotavail-able
whenyoupresstheMenubutton?

TheOSDislocked.GotoMenu>GeneralandsetOSDLockto
Off.
The screen retains an image.
Doesimagestickingoccureven
whenthemonitoristurnedoff?

Displayingastillimageforaprolongedtimemaycausedamageto
thescreen,resultingintheretentionoftheimage.

Toextendthelifetimeofthemonitor,useascreensaver.
Screen display is unstable and shaky / Images displayed on the monitor leave shadow trails.
Didyouselecttheappropriate
resolution?

IftheselectedresolutionisHDMI1080i60/50Hz(interlaced),the
screenmaybeflickering.Changetheresolutionto1080Porthe
recommendedresolution.
NOTE


Vertical frequencyInordertodisplayanimage,thescreenmustberefresheddozensoftimespersecond,likea
fluorescentlamp.Thenumberoftimesthescreenisrefreshedpersecondiscalledverticalfrequency,orrefresh
rate,andisrepresentedbyHz.


Horizontal frequencyThetimeittakestodisplayonehorizontallineiscalledthehorizontalcycle.If1isdivided
bythehorizontalinterval,theresultisthenumberofhorizontallinesdisplayedpersecond.Thisiscalledhorizontal
frequencyandisrepresentedbykHz.