Personal Computer User Manual

•IfyouareusingtheWindows7operatingsystem,followtheactionfor“ACDorDVDdoesnotwork”
onpage89.
Ifthisdoesnotcorrecttheproblem,followtheactionfor“ACDorDVDdoesnotwork”onpage89.
ACDorDVDdoesnotwork
Symptom:ACDorDVDdoesnotwork.
Actions:
•Verifythatthediscisinsertedcorrectly,withitslabelup.
•Makesurethatthediscyouareusingisclean.Toremovedustorngerprints,wipethedisccleanwitha
softclothfromthecentertotheoutside.Wipingadiscinacircularmotionmightcauselossofdata.
•Verifythatthediscyouareusingisnotscratchedordamaged.Tryinsertinganotherdiscthatyouknow
isgood.Ifyoucannotreadfromaknown-gooddisc,youmighthaveaproblemwithyourCDorDVD
driveorthecablingtoyourCDorDVDdrive.Makesurethatthepowercableandsignalcableare
securelyconnectedtothedrive.
Unabletouseastartable(bootable)recoverymedium,suchastheProductRecovery
CD,tostartyourcomputer
Symptom:Unabletouseastartable(bootable)recoverymedium,suchastheProductRecoveryCD,
tostartyourcomputer.
Action:MakesurethattheCDorDVDdriveisinthestartupsequencebeforetheharddiskdrive.Refer
toyour“Selectingorchangingthestartupdevicesequence”onpage70forinformationonviewingand
changingthestartupsequence.Notethatonsomemodelsthestartupsequenceispermanentlysetand
cannotbechanged.
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page101
forinstructions).Ifyouneedtechnicalassistance,seeChapter12“Gettinginformation,help,and
service”onpage103.
DVDproblems
Selectyoursymptomfromthefollowinglist:
•“BlackscreeninsteadofDVDvideo”onpage89
•“DVDmoviewillnotplay”onpage90
•“NoaudioorintermittentaudiowhileplayingDVDmovie”onpage90
•“Playbackisverysloworchoppy”onpage90
•“Invaliddiscornodiscfoundmessage”onpage90
BlackscreeninsteadofDVDvideo
Symptom:BlackscreeninsteadofDVDvideo
Actions:
•RestarttheDVDplayerprogram.
•Closeanyopenles,turnoffthecomputer,andthenrestartthecomputer.
•Tryalowerscreenresolutionorcolordepth.
Chapter11.Troubleshootinganddiagnostics89