Name: Lenovo ThinkCentre Edge 72z
Brand: Lenovo
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•IfyouhavemultipleCDorDVDdrivesinstalled(oracombinationofCDandDVDdrives),tryinsertingthe

discintotheotherdrive.Insomecases,onlyoneofthedrivesisconnectedtotheaudiosubsystem.

•IfyouareusingtheWindows7operatingsystem,followtheactionfor“ACDorDVDdoesnotwork”

onpage59.

Ifthisdoesnotcorrecttheproblem,followtheactionfor“ACDorDVDdoesnotwork”onpage59.

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”onpage47forinformationonviewingand

changingthestartupsequence.Notethatonsomemodelsthestartupsequenceispermanentlysetand

cannotbechanged.

Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical

assistance,seeChapter11“Gettinginformation,help,andservice”onpage73

DVDproblems

Selectyoursymptomfromthefollowinglist:

•“BlackscreeninsteadofDVDvideo”onpage59

•“DVDmoviewillnotplay”onpage60

•“NoaudioorintermittentaudiowhileplayingDVDmovie”onpage60

•“Playbackisverysloworchoppy”onpage60

•“Invaliddiscornodiscfoundmessage”onpage60

BlackscreeninsteadofDVDvideo

Symptom:BlackscreeninsteadofDVDvideo

Actions:

•RestarttheDVDplayerprogram.

•Closeanyopenles,turnoffthecomputer,andthenrestartthecomputer.

•Tryalowerscreenresolutionorcolordepth.

Chapter10.Troubleshootinganddiagnostics59

Lenovo ThinkCentre Edge 72z User Manual

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