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Theacpoweradapterisconnectedtoboththecomputerandtheworkingelectricaloutlet,buttheac
poweradaptericonisnotdisplayedintheWindowsnoticationarea,andtheacpowerindicator
doesnotlightup.
Dothefollowing:
1.Turnoffthecomputer,andthendisconnecttheacpoweradapterandremovethemainbattery.
2.Reinstallthebatteryandreconnecttheacpoweradapter,thenturnonthecomputer.Ensurethattheac
poweradapteriscorrectlyandsecurelyconnected.
3.Turnonthecomputer.
Iftheproblempersists,contactyourlocalCustomerSupportCenter.
Astartupproblem
Printtheseinstructionsnowandkeepitwithyourcomputerforreferencelater.
TheWindowsoperatingsystemdoesnotstart.
Usetherecoveryprogramprovidedonyourcomputertoidentifyandtroubleshoottheproblem.Formore
information,refertoChapter5“Recoveryoverview”onpage25
Sleepandhibernationproblems
Printtheseinstructionsnowandkeepitwithyourcomputerforreferencelater.
Acriticallow-batteryerroroccurs,andthecomputerimmediatelyturnsoff.
Thisindicatesthatthebatterypowerisgettingtoolow.Connecttheacpoweradaptertoyourcomputer
andplugtheotherendoftheacpoweradapterintoanelectricaloutlet.Youalsocansolvetheproblemby
replacingthebatterywithachargedone.
Thecomputerenterssleepmodeimmediatelyafterthepower-onself-test.
Ensurethat:
•Thebatteryischarged.
•Theoperatingtemperatureiswithintheacceptablerange.RefertoChapter7“Preventingproblems”
onpage41
.
Computerscreenproblems
Printtheseinstructionsrst.
Thescreenisblank.
Thisindicatesthatthebatterypowerisgettingtoolow.Connecttheacpoweradaptertoyourcomputer
andplugtheotherendoftheacpoweradapterintoanelectricaloutlet.Youalsocansolvetheproblemby
replacingthebatterywithachargedone.
Iftheproblempersists,dothefollowing:
•Ifyouareusingtheacpoweradapterorusingthebattery,andthebatterystatusindicatorison,press
Fn+uparrowtoincreasethescreenbrightness.
•Ifthepowerindicatorisblinking,pressthepowerbuttontoresumethecomputerfromsleepmode.
•CheckiftheLCDbacklightfeatureisenabled.
•Checkifthedisplaydevicedriverisinstalledcorrectly.
•Checkifthescreenresolutionandcolorqualityarecorrectlyset.
•Checkifthemonitortypeiscorrect.
46UserGuide