3.Restartthecomputer.
4.Whenthelogoscreenisdisplayed,repeatedlypressandreleasetheF12key.WhentheBootMenu
windowopens,releasetheF12key.
5.UsethearrowkeystoselectATAPICDx(x:0,1,...)andthenpressEnter.Thediagnosticprogram
willbelaunchedautomatically.
6.Followtheinstructionsonthescreentousethediagnosticprogram.
Powersystemcheckout
Toverifyifabatteryoranacpoweradapterisfunctional,dothefollowing:
1.Turnoffthecomputer.
2.Connecttheacpoweradapter.
3.Turnonthecomputer.Ifthecomputercanbeturnedon,itmeansthateitherthebatteryortheac
poweradapterisfunctional.
4.Insertastraightenedpaperclipintotheemergency-resetholetoresetthecomputer.Ifthecomputeris
stillpoweredon,itmeansthattheacpoweradapterisfunctional.
5.Turnoffthecomputer.
6.Disconnecttheacpoweradapterandturnonthecomputer.Ifthecomputercanbeturnedon,it
meansthatthebatteryisfunctional.
Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:
•“Checkingtheacpoweradapter”onpage27
•“Checkingtheremovablebatteryandtheoperationalcharging”onpage28
•“Checkingthecoin-cellbattery”onpage29
Checkingtheacpoweradapter
Youareherebecausethecomputerfailsonlywhentheacpoweradapterisused.
•Ifthepowerproblemoccursonlywhenthedockingstationortheportreplicatorisused,replacethe
dockingstationortheportreplicator.
•Ifthesystemstatusindicatordoesnotblinkthreetimeswhenanacpowersourceisconnected,check
thepowercordoftheacpoweradapterforcorrectcontinuityandinstallation.
•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingtheremovablebatteryandthe
operationalcharging”onpage28
.
Note:Noisefromtheacpoweradapterdoesnotalwaysindicateadefect.
Checkingthetraditionalacpoweradapter
Tochecktheacpoweradapter,dothefollowing:
1.Unplugtheacpoweradaptercablefromthecomputer.
2.Measuretheoutputvoltageattheplugoftheacpoweradaptercable.
Pin
Voltage(Vdc)
1+20
20
3
Ground
Note:Outputvoltageofpin2oftheacpoweradaptermightdifferfromtheoneyouareservicing.
3.Ifthevoltageisnotcorrect,replacetheacpoweradapter.
Chapter3.Generalcheckout27
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