Appendices 75
Appendix E: Troubleshooting, continued
Sound (see also NetCommand tr oubleshooting for A/V receiver setup)
Symptom Remarks
1. Thereisnosoundevenwhenthe
volumeisturnedup.
• CheckiftheMUTEbuttonison.
• TheTV’s“Listento:”settingmaybesettoSAP.
• CheckthattheSpeakersoptionissettoTVtohearsoundfromthe
TVspeakers.
• IfusinganA/Vreceiver,checkthattheSpeakersoptioniss ettoAV
ReceivertohearsoundfromtheA/Vre ceiverspeakers.
• PerformaSystemReset.
2. Thesounddoesnotmatchthescreen
picture.
• TheTV’sListento:settingmaybesettoSAP.
•
IfusingstereoorA/Vreceiverspe akers,checktheirinputselec-
tionintheInputs>AVRmenu.
• IfusingstereoorA/Vreceiver,checkthatDIGITALAUDIOOUT
and/orAVRAUDIOOUTPUTonTV’sbackpanelisconnectedto
theA/Vreceiver.
• NetCommand®issetupincorrectlyfortheA /Vreceiver.
Indicators
Symptom Remarks
1. LAMPindicatorlightisaconstantred. TurntheTVoffforatleast2m inutes.Turnitbackon.���Iflightis
stillred,thelamphasfailed.Replaceit.SeeAppendixCforlamp
replacementinformation.Forquestions,pleasecallMitsubi shiCon-
sumerrelationsat(800)332-2119.
2. LAMPindicatorlightisaflashingyellow. Lampcoverdoorisopenorlampcar tridgeisnotsecure.See
AppendixCforlampreplacementinformation.
3. STATUSindicatorlightisasteady
yellow.
• Roomtemperaturehasexceededproperlevels.Cooltheroom.
• TheTVhasoverheated.Clearblockedairventsandensureat
leastfourinchesofclearanceonallsidesoftheT V.
• Cleantheairfilteronthelampcartridge.SeeApp endixC.
Picture
Symptom Remarks
5. VCRorDVDplayer’son-screenmenusjitter
upanddown.
Possiblecause:ManyVCRsandDVDplayersprovideon-
screenmenusatonlyhalf-resolution.Theselower-resolution
graphicsmayappeartojitterupanddownwhentheTVcon -
vertsthemtohigh-definitiongraphics.
6. WhenviewingastoppedVCR,whitelines
arerollingonthescreen.
• TurnoffvideomutefortheVCR.
• Beginplayingthetape.
• ChangetheVCRinputtotheantennainput.
7. Screenisblack. ThePerfectColor™colorbalancehasb eenincorrectlyset.
ResetthePerfectColorbalance.
8. PicturefromanHDMIinputisnoisy(poor
quality).
UpgradeaCategory1(unmarked)HDMIcabletoaCategory2
HDMIcable.
9. Theimagefromacomputerappearsdis-
tortedwhenviewedontheTV.
NormalTVoperation.TheTVdoe snotcorrectdistortioninthe
picturefromacomputerbecausethecorrectionpro cessmay
causetheedgesoftheimagetobecutoff.