ThinkPad Edge E440 - Power System Checkout; Checking the Ac Power Adapter

Tocreateabootablediagnosticmedium,dothefollowing:
1.Gotohttp://www.lenovo.com/diags.
2.ClickLenovoBootableDiagnostics.
3.FollowtheinstructionsontheWebsitetocreateabootablediagnosticmediumonaUSBdeviceorCD.
Tousethediagnosticmediumyouhavecreated,dooneofthefollowing:
•IfyouhavecreatedthebootablediagnosticmediumonaUSBdevice,dothefollowing:
1.AttachtheUSBdevicetothecomputer.
2.Turnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage
30,andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”on
page39forerrorcodedescriptionsandtroubleshootinghints.
3.Whenthelogoscreenisdisplayed,repeatedlypressandreleasetheF12key.WhentheBootMenu
windowopens,releasetheF12key.
4.UsethearrowkeystoselectUSBHDDandthenpressEnter.Thediagnosticprogramwillbe
launchedautomatically.
5.Followtheinstructionsonthescreentousethediagnosticprogram.
•IfyouhavecreatedthebootablediagnosticmediumonaCD,dothefollowing:
1.Turnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage
30
,andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”on
page39forerrorcodedescriptionsandtroubleshootinghints.
2.InserttheCDintotheopticaldrive.
3.Restartthecomputer.
4.Whenthelogoscreenisdisplayed,repeatedlypressandreleasetheF12key.WhentheBootMenu
windowopens,releasetheF12key.
5.UsethearrowkeystoselectATAPICDx(x:0,1,...)andthenpressEnter.Thediagnosticprogram
willbelaunchedautomatically.
6.Followtheinstructionsonthescreentousethediagnosticprogram.
Powersystemcheckout
Toverifyifabatterypackoranacpoweradapterisfunctional,dothefollowing:
1.Turnoffthecomputer.
2.Removethebatterypack.
3.Connecttheacpoweradapter.
4.Checkthatpowerissuppliedwhenyouturnonthecomputer.
5.Turnoffthecomputer.
6.Disconnecttheacpoweradapterandinstallthechargedbatterypack.
7.Checkthatthebatterypacksuppliespowerwhenyouturnonthecomputer.
Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpower-supplycheckouts:
•“Checkingtheacpoweradapter”onpage30
•“Checkingoperationalcharging”onpage31
•“Checkingthebatterypack”onpage31
•“Checkingthecoin-cellbattery”onpage32
Checkingtheacpoweradapter
Ifyourcomputerfailsonlywhentheacpoweradapterisused,usethefollowinginstructions.
•Ifthepowerproblemoccursonlywhenthedockisused,replacethedock.
30HardwareMaintenanceManual