34
TROUBLESHOOTING
TROUBLESHOOTING
General
Problem
CannotcontroltheTVwiththe
remotecontrol.
Noimagedisplayandnosoundis
produced.
ImageappearsslowlywhentheTV
turnson.
Cannotconnectexternaldevices.
TheTVturnsoffsuddenly.
Audio
Problem
Nosoundisproducedwhileimages
aredisplaying.
Oneofthespeakersproduce
noisesordoesnotproducesound.
Video
Problem
Animagedisplaysinblackand
whiteorthecolourqualityispoor.
Horizontalorverticalbarsappears
orimagesblur
Linesorstreaksappearonimages
Afterimages(ghosts)appearwhen
theproductturnsoff
Thepowerisonbutthescreenap-
pearsextremelydark.
"NoSignal"appearsonthescreen.
Blackspotsappearonthescreen.
Thedisplayoffsetiswrong.
Thinlinesappearinthebackground
ofthescreen.
Horizontalnoisesappearorcharac-
tersblur.
Thereceptiononsomechannels
ispoor
y Checktheremotecontrolsensorontheproductandtryagain.
y
y Checkifthereisanyobstaclebetweentheproductandtheremotecontrol.
y
y Checkifthebatteriesarestillworkingandproperlyinstalled( to , to ).
y
y Checkiftheproductisturnedon.
y
y Checkifthepowercordisconnectedtoawalloutlet.
y
y Checkifthereisaprobleminthewalloutletbyconnectingotherproducts.
y
y Theimageismutedduringtheproductstartupprocess.Thisisnormal.Ifthe
y
imagedoesnotappearinafewminutes,unplugtheTVfor30secondsandtry
again.Iftheimagestilldoesnotappear,contacttheauthorizedservicecentre
inyourlocalarea.
y Refertothe"Connection overview"andconnectanexternaldevice.
y
y Checkthepowercontrolsettings.Thepowersupplymaybeinterrupted.
y
y CheckiftheAutosleepfeatureisactivatedintheTimesettings.
y
See"SleepTimer".
y IfthereisnosignalwhiletheTVison,theTVwillturnoffautomaticallyafter
y
15minutesofinactivity.(Exceptfor22/26/32LK335C,32/37/42/47/55LV355C,
32/37/42/47LK455C,32/37/42/47LK457C)
y Press
+or-button.
y
y CheckifthesoundismutedbypressingMUTE.
y
y Scrolltootherchannels.Theremayaproblemwiththebroadcast.
y
y Checkiftheaudiocablesareconnectedproperly.
y
y Achangeinambienthumidityortemperaturemayresultinanunusualnoise
y
whentheproductturnsonoroff.
y Thereisnoproblemwithyourproduct.
y
y AdjustthecoloursettinginthePicturemenu.
y
y Keepasufficientdistancebetweenthisproductandotherelectronicproducts.
y
y Scrolltootherchannels.Theremayaproblemwiththebroadcast.
y
y Checkiftherearelocalinterferencessuchasanelectricalapplianceorpower
y
tool.
y Checktheantennaoraimtheantennatotheproperdirection.
y
y Pixelsmayhavebeendamagedfromafixedimagedisplayedforalongtime
y
(imageburn).Useascreensavertopreventthepixeldamageonthescreen.
y AdjustthebrightnessandcontrastinthePicturemenu.
y
y CheckifthesignalcableisconnectedbetweentheTVandproductsproperly.
y
y ChecktheselectedinputsourcebypressingINPUT.
y
y Severalpixelsinred,green,white,orblackmayappearonthescreenthatcan
y
attributetothecharacteristicsofthepanel.
Thisisnormal.
y AdjustthepositionsettinginthePicturemenu.
y
y Checkifthevideocardresolutionandfrequencyaresupportedbytheproduct.
y
Ifthefrequencyisoutofrange,settotherecommendedresolutionusingthe
displaysettingsontheexternaldevice.
y Checkthevideocableconnections.
y
y AdjustthePhasesettinginthePicturemenu.
y
Refertothe"SCREEN".
y Scrolltootherchannels.Theremayaproblemwiththebroadcast.
y
y Thestationsignalmaybeweak.Aimtheantennatotheproperdirection.
y
y Checkifthereislocalinterferencesuchasanelectricalapplianceorpowertool.
y
Resolution
Resolution
Resolution