1.Gotohttp://www.lenovo.com/diagnose.
2.ClickLenovoBootableDiagnostics.
3.FollowtheinstructionsontheWebsitetocreateabootablediagnosticmediumonaUSBdeviceorCD.
Tousethediagnosticmediumyouhavecreated,dooneofthefollowing:
•IfyouhavecreatedthebootablediagnosticmediumonaUSBdevice,dothefollowing:
1.AttachtheUSBdevicetothecomputer.
2.T urnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage
28,andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”on
page36
forerrorcodedescriptionsandtroubleshootinghints.
3.WhentheThinkPadlogoisdisplayed,repeatedlypressandreleasetheF12key.WhentheBoot
Menuwindowopens,releasetheF12key.
4.UsethearrowkeystoselectUSBHDDandthenpressEnter.Thediagnosticprogramwillbe
launchedautomatically.
5.Followtheinstructionsonthescreentousethediagnosticprogram.
•IfyouhavecreatedthebootablediagnosticmediumonaCD,dothefollowing:
1.T urnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage
28
,andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”on
page36forerrorcodedescriptionsandtroubleshootinghints.
2.Connectanexternalopticaldrivetoyourcomputer,andinserttheCDintotheopticaldrive.
3.Restartthecomputer.
4.WhentheThinkPadlogoisdisplayed,repeatedlypressandreleasetheF12key.WhentheBoot
Menuwindowopens,releasetheF12key.
5.UsethearrowkeystoselectATAPICDx(x:0,1,...)andthenpressEnter.Thediagnosticprogram
willbelaunchedautomatically.
6.Followtheinstructionsonthescreentousethediagnosticprogram.
Powersystemcheckout
Toverifyasymptom,dothefollowing:
1.Connecttheacpoweradapterandturnonthecomputer.
2.Checkthatpowerissuppliedwhenyouturnonthecomputer.
3.Insertastraightenedpaperclipintotheemergencyresetholetoresetthecomputer.Conrmthe
systemisstillpoweredon.
4.T urnoffthecomputeranddisconnecttheacpoweradapter.
5.Checkthatthebatterypacksuppliespowerwhenyouturnonthecomputer.
Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:
•“Checkingtheacpoweradapter”onpage28
•“Checkingoperationalcharging”onpage29
•“Checkingthebatterypack”onpage29
•“Checkingthebackupbattery”onpage29
Checkingtheacpoweradapter
Ifthecomputerfailsonlywhentheacpoweradapterisused,dothefollowing:
•Ifthepower-onindicatordoesnotturnon,checkthepowercordoftheacpoweradapterforcorrect
continuityandinstallation.
•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingoperationalcharging”onpage29
28HardwareMaintenanceManual
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