Hardware Maintenance Manual

1.Gotohttp://www.lenovo.com/diags.
2.ClickLenovoBootableDiagnostics.
3.FollowtheinstructionsontheWebsitetocreateabootablediagnosticmediumonaUSBdeviceorCD.
Tousethediagnosticmediumyouhavecreated,dooneofthefollowing:
•IfyouhavecreatedthebootablediagnosticmediumonaUSBdevice,dothefollowing:
1.AttachtheUSBdevicetothecomputer.
2.Turnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage
26,andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”on
page34forerrorcodedescriptionsandtroubleshootinghints.
3.WhentheLenovologoisdisplayed,repeatedlypressandreleasetheF12key.WhentheBootMenu
windowopens,releasetheF12key.
4.UsethearrowkeystoselectUSBHDDandthenpressEnter.Thediagnosticprogramwillbe
launchedautomatically.
5.Followtheinstructionsonthescreentousethediagnosticprogram.
•IfyouhavecreatedthebootablediagnosticmediumonaCD,dothefollowing:
1.Turnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage
26
,andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”on
page34forerrorcodedescriptionsandtroubleshootinghints.
2.InserttheCDintotheopticaldrive.
3.Restartthecomputer.
4.WhentheLenovologoisdisplayed,repeatedlypressandreleasetheF12key.WhentheBootMenu
windowopens,releasetheF12key.
5.UsethearrowkeystoselectATAPICDx(x:0,1,...)andthenpressEnter.Thediagnosticprogram
willbelaunchedautomatically.
6.Followtheinstructionsonthescreentousethediagnosticprogram.
Powersystemcheckout
Toverifyifabatterypackoranacpoweradapterisfunctional,dothefollowing:
1.Turnoffthecomputer.
2.Connecttheacpoweradapter.
3.Turnonthecomputer.Ifthecomputercanbeturnedon,itmeansthateitherthebatterypackortheac
poweradapterisfunctional.
4.Insertastraightenedpaperclipintotheemergencyresetholetoresetthecomputer.Ifthecomputeris
stillpoweredon,itmeansthattheacpoweradapterisfunctional.
5.Turnoffthecomputer.
6.Disconnecttheacpoweradapterandturnonthecomputer.Ifthecomputercanbeturnedon,it
meansthatthebatterypackisfunctional.
Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:
•“Checkingtheacpoweradapter”onpage26
•“Checkingthebuilt-inbatteriesandoperationalcharging”onpage27
•“Checkingthecoin-cellbattery”onpage27
Checkingtheacpoweradapter
Youareherebecausethecomputerfailsonlywhentheacpoweradapterisused.
•Ifthepowerproblemoccursonlywhenthedockingstationortheportreplicatorisused,replacethe
dockingstationortheportreplicator.
26ThinkPadT460sHardwareMaintenanceManual