Lenovo B480 Manual do Utilizador descarregar pdf (Página 67)

•PressFn+F2toconrmwhethertheLCDscreenhasbeenturnedoff.

Iftheproblempersists,followthesolutionto“Thescreenisunreadableordistorted.”onpage53

Thescreenisunreadableordistorted.

Makesurethat:

•Thedisplaydevicedriverisinstalledcorrectly.

•Thescreenresolutionandcolorqualityarecorrectlyset.

•Themonitortypeiscorrect.

Incorrectcharactersaredisplayedonthescreen.

Didyouinstalltheoperatingsystemorapplicationprogramcorrectly?Iftheyareinstalledandcongured

correctly,havethecomputerserviced.

WhenIturnonthecomputer,nothingisdisplayedonthescreenandthecomputerdoesnotbeep

whilestartingup.

Makesurethat:

•Thebatteryisinstalledcorrectly.

•Theacpoweradapterisconnectedtothecomputerandthepowercordispluggedintoaworking

electricaloutlet.

•Thecomputeristurnedon.(Pressthepowerbuttonagainforconrmation.)

Iftheseitemsarecorrectlyset,andthescreenremainsblank,havethecomputerserviced.

WhenIturnonthecomputer,onlyawhitecursorisdisplayedonablankscreen.

Restoreyourbackuplesorrestoreyourcomputertothefactorydefaultsettingsusingthepreinstalled

recoveryprogramsonyourcomputer.Iftheproblempersists,havethecomputerserviced.

Myscreengoesblankwhilethecomputerison.

Yourscreensaverorpowermanagementmaybeenabled.Dooneofthefollowingtoexitfromthescreen

saverortoresumefromsleeporhibernationmode:

•PresstheFnkey.

•Pressthepowerbutton.

•PressFn+F2toconrmwhethertheLCDscreenhasbeenturnedoff.

Problemswithdrivesandotherstoragedevices

Thissectionincludesharddiskdriveproblemsandopticaldriveproblems.

Harddiskdriveproblems

Printtheseinstructionsnowandkeepitwithyourcomputerforreferencelater.

Theharddiskdrivemakesarattlingnoiseintermittently.

Therattlingnoisemightbeheard:

•Whentheharddiskdrivebeginsornishesgettingaccesstodata.

•Whenyoucarrytheharddiskdrive.

•Whenyoucarryyourcomputer.

Chapter9.Troubleshootingcomputerproblems53

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Lenovo B480 Manual do Utilizador Página 67