LG 20M47A - Troubleshooting; No Image or Signal Issues; OSD Locked Message; Display Image Adjustments

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ENG
ENGLISH
TROUBLESHOOTING
TROUBLESHOOTING
Checkthefollowingbeforecallingforservice.
Noimageappears
Isthepowercordofthedisplay
connected?


Checkandseeifthepowercordisconnectedproperlytothepower
outlet.
Isthepowerindicatorlighton?


PressthePowerbutton.
Isthepowerindicatorflickering?


Ifthedisplayisinpowersavingmode,trymovingthemouseor
pressinganykeyonthekeyboardtobringupthescreen.


TrytoturnonthePC.
Doyouseean"OUTOFRANGE"
messageonthescreen?


ThismessageappearswhenthesignalfromthePC(videocard)is
outofhorizontalorverticalfrequencyrangeofthedisplay.Seethe
'Specifications'sectionofthismanualandconfigureyourdisplay
again.
Doyouseea"NOSIGNAL"
messageonthescreen?


Whenthemonitorison"No-Signal"in5minutes,themonitorgoesto
DPMmode.
Doyouseea"OSDLOCKED"messageonthescreen?
Doyousee“OSDLOCKED”when
youpushMENUbutton?


Youcansecurethecurrentcontrolsettings,sothattheycannotbe
inadvertentlychanged.YoucanunlocktheOSDcontrolsatanytime
bypushingtheMENUbuttonforseveralseconds:themessage“OSD
UNLOCKED”willappear.
Displayimageisincorrect
DisplayPositionisincorrect.


Pressthe
AUTO
buttontoautomaticallyadjustyourdisplayimageto
theidealsetting.
Onthescreenbackground,vertical
barsorstripesarevisible.


Pressthe
AUTO
buttontoautomaticallyadjustyourdisplayimageto
theidealsetting.
Anyhorizontalnoiseappearingin
anyimageorcharactersarenot
clearlyportrayed.


Pressthe
AUTO
buttontoautomaticallyadjustyourdisplayimageto
theidealsetting.


Check
ControlPanel►Display►Settings
andadjustthedisplay
totherecommendedresolutionoradjustthedisplayimagetotheideal
setting.Setthecolorsettinghigherthan24bits(truecolor).