Problem:ThesoundcannotbeturnedoffcompletelyevenifyousettheMastervolumecontrolat
minimum.
Solution:YoucanstillhearsomesoundeventhoughyouhavesettheMastervolumecontrolat
minimum.Toturnoffthesoundcompletely,gototheMastervolumecontrolandselectMutespeakers
(inWindowsXP,Mute).
Problem:Whenyouconnectaheadphonetoyourcomputerwhileplayingsound,aspeakerdoesnot
producesoundintheMULTI-STREAMmodeatSmartAudio(Windows7).
Solution:Oncetheheadphoneisattached,thestr eamingisautomaticallyredirectedtoit.Ifyouwant
tolistentosoundfromthespeakersagain,besuretosetthosespeakersasthedefaultdevice.The
procedureisasfollows:
1.ClickStartControlPanelAllControlPanelItems.
2.ClicktheSmartAudioicon.TheSmartAudiowindowopens.
3.L ookattheplaybackdevices.Ifyouhaveattachedaheadphone,theheadphonewillbeautomatically
setasthedefaultdevice,andtheiconforthatheadphonewillbechecked.
4.T osetadifferentdeviceasthedefault,justdouble-clicktheiconforthosespeakers.Thaticon
willnowhaveacheckmark.
5.Playanysoundbyuseofamusicpr ogramsuchasWindowsMediaPlayer.Makesurethatsound
comesfromthespeakers.
Fordetails,refertotheHelpforSmartAudio.
Batteryandpower
Thissectiontellswhattodoifyouhaveabatteryandpowerproblem.
Thissectionincludesvetopics:battery,acpoweradapter,power,powerbutton,startupandsleep
(standby)andhibernation.Checkthesetopicstondtherelatedinformation.

Batteryproblems

Problem:Thebatterypackcannotbefullychargedbythepower-offmethodinthestandardcharge
timeforyourcomputer.
Solution:Thebatterypackmightbeover-discharged.Dothefollowing:
1.T urnoffthecomputer.
2.Mak esurethattheover-dischargedbatterypackisinthecomputer.
3.Connecttheacpoweradaptertothecomputerandletitcharge.
IftheoptionalQuickChargerisavailable,useittochargetheover-dischargedbatterypack.
Ifthebatterypackcannotbefullychargedin24hours,useanewbatterypack.
Problem:Yourcomputershutsdownbeforethebatterystatusindicatorshowsempty,-or-Y our
computeroperatesafterthebatterystatusindicatorshowsempty.
Solution:Dischargeandrechargethebatterypack.
Problem:Theoperatingtimeforafullychargedbatterypackisshort.
Solution:Dischargeandrechargethebatterypack.Ifyourbattery'soperatingtimeisstillshort,usea
newbatterypack.
Problem:Thecomputerdoesnotoperatewithafullychargedbatterypack.
Solution:Thesurgeprotectorinthebatterypackmightbeactive.Turnoffthecomputerforoneminuteto
resettheprotector;thenturnonthecomputeragain.
Chapter10.Troubleshootingcomputerproblems145