IBM THINKPAD L460 Hardware Maintenance Manual

ThinkPadL460
HardwareMaintenanceManual

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage105.

FirstEdition(January2016)

©CopyrightLenovo2016.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuanttoaGeneralServices
Administration“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.
GS-35F-05925.

Contents

Aboutthismanual...........iii

Chapter1.Safetyinformation......1

Generalsafety................1

Electricalsafety...............1

Safetyinspectionguide............2

Handlingdevicesthataresensitivetoelectrostatic

discharge..................3

Groundingrequirements............4

Safetynotices(multilingualtranslations)......4

Chapter2.Importantservice

information..............19

StrategyforreplacingFRUs.........19

Strategyforreplacingaharddiskdriveora

solid-statedrive............19

Importantnoticeforreplacingasystem

board................20

Howtouseerrormessage........20

StrategyforreplacingFRUsforCTO,special-bid,

andstandardmodels............20

Productdefinition............20

FRUidentification............20

Chapter3.Generalcheckout.....23

Whattodofirst..............23

Checkoutguide..............24

LenovoSolutionCenter.........24

Quicktestprograms...........24

UEFIdiagnosticprogram.........25

Bootablediagnosticprograms.......25

Powersystemcheckout...........26

Checkingtheacpoweradapter......27

Checkingtheexternalbatterypackandthe

operationalcharging..........27

Checkingthecoin-cellbattery.......28

Chapter4.Relatedservice

information..............29

Restoringthefactorycontentsbyusingthe

RecoveryDiscSet.............29

RecoveryoverviewfortheWindows10operating

system..................30

Resettingyourcomputer.........30

Usingadvancedstartupoptions......30

RecoveringyouroperatingsystemifWindows

10failstostart.............31

CreatingandusingarecoveryUSBdrive..31

Passwords................32

Power-onpassword...........32

Harddiskpassword...........32

Supervisorpassword..........32

Howtoremovethepower-onpassword...32
Howtoremovetheharddiskpassword...33

Powermanagement............33

Screenblankmode(fortheWindows7

operatingsystemonly)..........34

Sleepmode..............34

Hibernationmode...........34

Symptom-to-FRUindex...........35

Numericerrorcodes..........35

Errormessages............36

Beepsymptoms............37

No-beepsymptoms...........37

LCD-relatedsymptoms.........37

Intermittentproblems..........38

Undeterminedproblems.........38

Chapter5.Statusindicators.....41

Chapter6.Functionkeys.......43

Chapter7.Locations.........45

Locatingcomputercontrols,connectors,and

indicators.................45

Frontview...............45

Rearview...............46

Bottomview..............46

LocatingFRUsandCRUs..........47

MajorFRUsandCRUs..........48

LCDFRUs..............50

Miscellaneousparts...........51

Connectorandcableguide........51

LookingupFRUinformation.........55

Chapter8.FRUreplacement

notices................57

Screwnotices...............57

Retainingserialnumbers...........58

Restoringtheserialnumberofthesystem

unit.................58

RetainingtheUUID...........59

ReadingorwritingtheECAinformation...59

Chapter9.Removingorreplacinga

FRU..................61

Generalguidelines.............61

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1010SIM-cardtray.............62

1020Externalbatterypack..........62

1030Keyboardrubbers...........63

1040Keyboard..............64

1050Basecoverassembly..........70

1060Dockingbracketordockingdummydoor..72

1070SIM-carddummycover.........74

1080Harddiskdriveorsolid-statedrive....74

1090Wireless-LANcard...........75

1100Wireless-WANcard..........78

1110Memorymodule............81

1120Speakerassembly...........82

1130Coin-cellbattery............84

1140LCDunit...............84

1150dc-incable..............86

1160Thermalfanassembly.........88

1170I/Obracket..............89

1180Smart-cardbracket..........91

1190Systemboardandsubcards.......92

1200Smartcardandsmart-cardcable,or

smart-carddummydoor...........95

1210Keyboardbezelassembly........96

2010LCD-bezelsheet............97

2020LCDpanel..............97

2030Camera/microphonemodule,camera

module,ormicrophonemodule........99

2040LCDhinges..............100

2050LCDcable..............101

2060Wireless-LAN/WANantennaassembly
orwireless-LANantenna,andLCDrear-cover

assembly.................102

AppendixA.Notices.........105

Electronicemissionsnotices.........106

Trademarks................106

AppendixB.Abbreviationtable...107

iiThinkPadL460HardwareMaintenanceManual

Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad

®

products.

ThinkPadL460

Machine Type (MT) 20FU and 20FV

Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.

Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPad
products.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safetyinformation”
onpage1andChapter2“Importantserviceinformation”onpage19.

©CopyrightLenovo2016

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ivThinkPadL460HardwareMaintenanceManual

Chapter1.Safetyinformation

Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea
ThinkPadnotebookcomputer.

•“Generalsafety”onpage1

•“Electricalsafety”onpage1

•“Safetyinspectionguide”onpage2

•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3

•“Groundingrequirements”onpage4

•“Safetynotices(multilingualtranslations)”onpage4

Generalsafety

Followtheserulestoensuregeneralsafety:

•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Makesurethatyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallybetweenyourfeet.

3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.Donotattempttoliftanyobjectthatweighsmorethan16kg(35lb)orthat

youthinkistooheavyforyou.

•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.

•Beforeyoustartthemachine,makesurethatotherservicetechniciansandthecustomer'spersonnelare
notinahazardousposition.

•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing
themachine.

•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.

•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Makesurethatyour
sleevesarefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.

•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,about8
centimeters(3inches)fromtheend.

•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing.

Attention:Metalobjectsaregoodelectricalconductors.

•Wearsafetyglasseswhenyouarehammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.

•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.

•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.

•Fanlouversonthemachinehelptopreventoverheatingofinternalcomponents.Donotobstructfan
louversorcoverthemwithlabelsorstickers.

Electricalsafety

Observethefollowingruleswhenworkingonelectricalequipment.

Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberfloormatsthatcontainsmallconductivefiberstodecreaseelectrostaticdischarges.
Donotusethistypeofmattoprotectyourselffromelectricalshock.

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•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.

•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.

•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–Removingorinstallingmainunits

•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topower-offthewallboxthatsuppliespowertothemachine,andtolockthewallboxintheoffposition.

•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.

Attention:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.

–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour

pocketorbehindyourback.

Attention:Anelectricalshockcanoccuronlywhenthereisacompletecircuit.Byobservingtheabove
rule,youmaypreventacurrentfrompassingthroughyourbody.

–Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor

thattester.

–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas

metalfloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;Instructionsforthese
precautionsareinthesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuring
highvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistfloors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.

•Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.

•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorgenerators
–Similarunitsaslistedabove
Thispracticeensurescorrectgroundingoftheunits.

•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.

Safetyinspectionguide

Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach
machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians
frominjury.Thisguideaddressesonlythoseitems.Y oushouldusegoodjudgmenttoidentifypotential
safetyhazardsduetoattachmentofnon- ThinkPadfeaturesoroptionsnotcoveredbythisinspectionguide.

Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.

2ThinkPadL460HardwareMaintenanceManual

Considertheseconditionsandthesafetyhazardstheypresent:

•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)

•Explosivehazards,suchasadamagedcathoderaytube(CRT)faceorabulgingcapacitor

•Mechanicalhazards,suchaslooseormissinghardware

Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning
ofeveryservicetask.Beginthecheckswiththepoweroff,andthepowercorddisconnected.

Checklist:

1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).

2.Poweroffthecomputer.Disconnectthepowercord.

3.Checkthepowercordfor:

a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground

continuityfor0.1ohmorlessbetweentheexternalgroundpinandtheframeground.

b.Thepowercordshouldbetheauthorizedtypespecifiedforyourcomputer.Goto:

http://www.lenovo.com/serviceparts-lookup

c.Insulationmustnotbefrayedorworn.

4.Checkforcrackedorbulgingbatteries.

5.Removethecover.

6.Checkforanyobviousnon- ThinkPadalterations.Usegoodjudgmentastothesafetyofany
non-ThinkPadalterations.

7.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.

8.Checkforworn,frayed,orpinchedcables.

9.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.

Handlingdevicesthataresensitivetoelectrostaticdischarge

Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.

Notes:

1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.

2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.

WhenhandlingESD-sensitiveparts:

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

•Avoidcontactwithotherpeople.

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.

•Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen
handlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.

Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.
–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.

Chapter1.Safetyinformation3

–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor

referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundgroundprongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.

Safetynotices(multilingualtranslations)

Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•BrazilianPortuguese

•French

•German

•Hebrew

•Japanese

•Korean

•Spanish

•T raditionalChinese

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12ThinkPadL460HardwareMaintenanceManual

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18ThinkPadL460HardwareMaintenanceManual

Chapter2.Importantserviceinformation

Thischapterintroducesfollowingimportantserviceinformationthatappliestoallmachinetypessupported
bythismanual:

•“StrategyforreplacingFRUs”onpage19
–“Strategyforreplacingaharddiskdriveorasolid-statedrive”onpage19
–“Importantnoticeforreplacingasystemboard”onpage20
–“Howtouseerrormessage”onpage20

•“StrategyforreplacingFRUsforCTO,special-bid,andstandardmodels”onpage20
–“Productdefinition”onpage20
–“FRUidentification”onpage20

Important:

•IfthecomputerisequippedwithbothaharddiskdriveandanM.2solid-statedrive,donotusetheM.2
solid-statedriveasabootabledevice.TheM.2solid-statedriveisdesignedanddevelopedfor“cache”
functionpurposeonly.

•AdvisecustomerstocontacttheLenovo

®

CustomerSupportCenteriftheyneedanyassistancein
obtainingorinstallinganysoftwarefixes,drivers,andUnifiedExtensibleFirmwareInterfacebasic
inputoutputsystem(UEFIBIOS)downloads.TelephonenumbersforLenovoSupportareavailableat:
http://www.lenovo.com/support/phone

•SystemDisassembly/ReassemblyvideosthatshowtheFRUremovalsorreplacementsfortheLenovo
authorizedservicetechniciansareavailableinthefollowingsupportsite:
http://www.lenovoservicetraining.com/ion/

StrategyforreplacingFRUs

Beforereplacingparts:

Ensurethatallsoftwarefixes,drivers,andUEFIBIOSdownloadsareinstalledbeforereplacinganyFRUs
listedinthismanual.

Afterasystemboardisreplaced,ensurethatthelatestUEFIBIOSisloadedtothesystemboardbefore
completingtheserviceaction.

Todownloadsoftwarefixes,drivers,andUEFIBIOS,gotohttp://www.lenovo.com/ThinkPadDriversand
followtheinstructionsonthescreen.

UsethefollowingstrategytopreventunnecessaryexpenseforreplacingandservicingFRUs:

•IfyouareinstructedtoreplaceaFRUbutthereplacementdoesnotcorrecttheproblem,reinstallthe
originalFRUbeforeyoucontinue.

•Somecomputershavebothaprocessorboardandasystemboard.Ifyouareinstructedtoreplaceeither
theprocessorboardorthesystemboard,andreplacingoneofthemdoesnotcorrecttheproblem,
reinstallthatboard,andthenreplacetheotherone.

•IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUsmightbethecauseoftheerror.
Beforereplacingtheadapterordevice,removetheFRUs,onebyone,toseeifthesymptomschange.
ReplaceonlytheFRUthatchangedthesymptoms.

Strategyforreplacingaharddiskdriveorasolid-statedrive

Alwaystrytorunalow-levelformatbeforereplacingaharddiskdriveorasolid-statedrive.Thiswillcause
allcustomerdataonthedrivetobelost.Besurethatthecustomerhasacurrentbackupofthedata
beforedoingthistask.

©CopyrightLenovo2016

19

Attention:Thedrivestartupsequenceinthecomputeryouareservicingmayhavebeenchanged.Be
extremelycarefulduringwriteoperationssuchascopying,saving,orformatting.Ifyouselectanincorrect
drive,dataorprogramscanbeoverwritten.

Importantnoticeforreplacingasystemboard

Somecomponentsmountedonasystemboardareverysensitive.Improperhandlingofasystemboardcan
causedamagetothosecomponents,andmaycauseasystemmalfunction.

Attention:Whenhandlingasystemboard:

•Donotdropasystemboardorapplyanyexcessiveforcetoit.

•Avoidroughhandlingofanykind.

•Avoidbendingasystemboardandhardpushingtopreventcrackingateachball-grid-array(BGA)chipset.

Howtouseerrormessage

Usetheerrorcodesdisplayedonthescreentodiagnosefailures.Ifmorethanoneerrorcodeisdisplayed,
beginthediagnosiswiththefirsterrorcode.Whatevercausesthefirsterrorcodemayalsocausefalseerror
codes.Ifnoerrorcodeisdisplayed,seewhethertheerrorsymptomislistedintheSymptom-to-FRU
Indexforthecomputeryouareservicing.

StrategyforreplacingFRUsforCTO,special-bid,andstandardmodels

ThistopicprovidesinformationaboutthemodeltypesandFRUidentification.

Productdefinition

Thistopicintroducesdifferentmodeltypesandhowtoidentifyeachtype.

Dynamicconfigure-to-order(CTO)model

ThismodelprovidestheabilityforacustomertoconfigureaLenovosolutionfromaWebSite,andhavethis
configurationsenttofulfillment,whereitisbuiltandshippeddirectlytothecustomer.Themachinelabeland
eSupportwillloadtheseproductsasthe4-characterMT ,4-charactermodel,and2-charactercountrycode.
Themodelis“CTO1”andthedefaultcountrycodeis“WW”(example:20AACTO1WW).

Special-bidmodel

ThisisauniqueconfigurationthathasbeennegotiatedbetweenLenovoandthecustomer.Auniquemachine
typemodel(MTM)consistsofa4-characterMT,a4-charactermodel,andanumeric2-charactercountry
codeisprovidedtothecustomertoplaceorders(example:20AA000955).Thecountrycodeassignedis
numericanddoesnotdesignateaspecificcountryorregion.ThecustommodelfactsheetfortheMTM
indicateswhichcountrythespecialbidMTMissetupfor.Special-bidofferingisnotgenerallyannounced.

Standardmodel

Standardmodels(fixedconfiguration)areannouncedandofferedtoallcustomers.TheMTMportionofthe
machinelabelconsistsofa4-characterMT,a4-charactermodel,andanalphabetic2-charactercountry
code.Thecountrycodeassignedisalphabeticandrepresentsadesignatedcountryorregion(example:
20AA0009UK).

FRUidentification

UseLenovoeSupporttoidentifymajorFRUs,FRUpartnumbers,andFRUdescriptionsforaproductat
anMT-serialnumberlevel.ExamplesofmajorFRUsareharddiskdrive,systemboard,andliquidcrystal
display(LCD).

ToidentifythemajorFRUsforaproduct,dothefollowing:

20ThinkPadL460HardwareMaintenanceManual

1.Goto:
http://support.lenovo.com/ibasepartslookup

2.TypetheMachineTypeandSerialNumberinthecorrespondingfields.

3.ClickSubmit.

eSupportalsocanbeusedtoviewthegeneralFRUlistforaproduct.TheFRUlistisagenerallistof
componentsanddoesnotcontainspecificmodelinformation.

TogetthegeneralFRUlistforaproduct,dothefollowing:

1.Goto:
http://www.lenovo.com/support

2.Followtheinstructionsonthescreentoselectaproduct.

3.ClicktheProduct&Partstab.

4.SelectSystemServicePartstoviewageneralFRUlist.

Chapter2.Importantserviceinformation21

22ThinkPadL460HardwareMaintenanceManual

Chapter3.Generalcheckout

Thischapterintroducesfollowinginformation:

•“Whattodofirst”onpage23

•“Checkoutguide”onpage24
–“LenovoSolutionCenter”onpage24
–“Quicktestprograms”onpage24
–“UEFIdiagnosticprogram”onpage25
–“Bootablediagnosticprograms”onpage25

•“Powersystemcheckout”onpage26

Beforeyougotothecheckoutguide,besuretoreadthefollowingimportantnotes.

Importantnotes:

•Onlycertifiedtrainedpersonnelshouldservicethecomputer .

•BeforereplacinganyFRU,readtheentirepageonremovingandreplacingFRUs.

•WhenyoureplaceFRUs,itisrecommendedusenewnylon-coatedscrews.

•Beextremelycarefulduringsuchwriteoperationsascopying,saving,orformatting.Thesequence
ofthedrivesinthecomputerthatyouareservicingmighthavebeenaltered.Ifyouselectanincorrect
drive,dataorprogramsmightbeoverwritten.

•ReplaceaFRUonlywithanotherFRUofthecorrectmodel.WhenyoureplaceaFRU,ensure
thatthemodelofthemachineandtheFRUpartnumberarecorrectbyreferringtothewebsite:
http://www.lenovo.com/serviceparts-lookup

•AFRUshouldnotbereplacedbecauseofasingle,unreproduciblefailure.Singlefailurescanoccur
foravarietyofreasonsthathavenothingtodowithahardwaredefect,suchascosmicradiation,
electrostaticdischarge,orsoftwareerrors.ConsiderreplacingaFRUonlywhenaproblemrecurs.Ifyou
suspectthataFRUisdefective,cleartheerrorlogandrunthetestagain.Iftheerrordoesnotrecur,do
notreplacetheFRU.

•BecarefulnottoreplaceanondefectiveFRU.

Whattodofirst

WhenyoureturnaFRU,youmustincludethefollowinginformationinthepartsexchangeformorparts
returnformthatyouattachtoit:

1.Nameandphonenumberofservicetechnician

2.Dateofservice

3.Dateonwhichthemachinefailed

4.Dateofpurchase

5.Failuresymptoms,errorcodesappearingonthedisplay,andbeepsymptoms

6.ProcedureindexandpagenumberinwhichthefailingFRUwasdetected

7.FailingFRUnameandpartnumber

8.Machinetype,modelnumber,andserialnumber

9.Customer'snameandaddress

Note:Duringthewarrantyperiod,thecustomermayberesponsibleforrepaircostsifthecomputerdamage
wascausedbymisuse,accident,modification,unsuitablephysicaloroperatingenvironment,orimproper
maintenancebythecustomer.Followingisalistofsomecommonitemsthatarenotcoveredunderwarranty
andsomesymptomsthatmightindicatethatthesystemwassubjectedtostressbeyondnormaluse.

©CopyrightLenovo2016

23

Beforecheckingproblemswiththecomputer,determinewhetherthedamageiscoveredunderthewarranty
byreferringtothefollowinglist:

Thefollowingarenotcoveredunderwarranty:

•LCDpanelcrackedfromtheapplicationofexcessiveforceorfrombeingdropped

•Scratched(cosmetic)parts

•Distortion,deformation,ordiscolorationofthecosmeticparts

•Plasticparts,latches,pins,orconnectorsthathavebeencrackedorbrokenbyexcessiveforce

•Damagecausedbyliquidspilledintothesystem

•Damagecausedbytheimproperinsertionofapersonal-computercard(PCcard)ortheinstallationof
anincompatiblecard

•Improperdiscinsertionoruseofanexternalopticaldrive

•Fusesblownbyattachmentofanonsupporteddevice

•Forgottencomputerpassword(makingthecomputerunusable)

•Stickykeyscausedbyspillingaliquidontothekeyboard

•Useofanincorrectacpoweradapteronlaptopproducts

Thefollowingsymptomsmightindicatedamagecausedbynonwarrantedactivities:

•Missingpartsmightbeasymptomofunauthorizedserviceormodification.

•Checkforobviousdamagetoaharddiskdrive.Ifthespindleofaharddiskdrivebecomesnoisy,thehard
diskdrivemighthavebeendroppedorsubjecttoexcessiveforce.

Checkoutguide

UsethefollowingproceduresasaguideinidentifyingandcorrectingproblemswiththeThinkPadnotebook
computers.

Note:ThediagnostictestsareintendedtotestonlyThinkPadproducts.Theuseofnon- ThinkPadproducts,
prototypecards,ormodifiedoptionscanleadtofalseindicationsoferrorsandinvalidsystemresponses.

1.Identifythefailingsymptomsinasmuchdetailaspossible.

2.Verifythesymptoms.T rytore-createthefailurebyrunningthediagnostictestorbyrepeatingthe
operation.

LenovoSolutionCenter

TheLenovoSolutionCenterprogramenablesyoutotroubleshootandresolvecomputerproblems.It
combinesdiagnostictests,systeminformationcollection,securitystatus,andsupportinformation,along
withhintsandtipsformaximumsystemperformance.

TheLenovoSolutionCenterprogramisavailablefordownloadathttp://www.lenovo.com/diags.

ToruntheLenovoSolutionCenterprogram,gotoControlPanelandclickSystemandSecurity➙Lenovo-
SystemHealthandDiagnostics,andthenfollowtheinstructionsonthescreen.

FormoreinformationabouttheLenovoSolutionCenterprogram,refertothehelpinformationsystem
oftheprogram.

Quicktestprograms

Runquicktestprogramstotroubleshootandresolvecomputerproblems,especiallywhenthecomputer
doesnothavetheLenovoSolutionCenterprograminstalled.

Lenovoprovidesthefollowingquicktestprograms:

•LenovoHardDriveQuickT est:Usethisprogramtotroubleshootandresolveinternalstorageproblems.

•LenovoMemoryQuickTest:Usethisprogramtotroubleshootandresolvememorymoduleproblems.

24ThinkPadL460HardwareMaintenanceManual

Thequicktestprogramsareapplicableonthefollowingoperatingsystems:

•Microsoft

®

Windows

®

10

•MicrosoftWindows7

•MicrosoftWindowsXP

•MicrosoftWindowsServer

®

2003

•MicrosoftWindowsServer2008

Todownloadandinstallaquicktestprogram,gotohttp://www.lenovo.com/diags,andfollowtheinstructions
ontheWebsite.

Torunatestusingquicktestprogram,dothefollowing:

1.GototheC:\SWTOOLS\ldiagdirectory.

2.Double-clickthegui_lsc_lite.exefile.

3.WhentheUserAccountControlwindowopens,clickYes.

4.Selectthedeviceclasstobetested.

5.Selectthedevicestobetested.

6.Selectthetesttobeperformed.

7.Followtheinstructionsonthescreentostartthetest.Whenaproblemisdetected,information
messagesaredisplayed.Refertothemessagestotroubleshoottheproblem.

UEFIdiagnosticprogram

AUEFIdiagnosticprogramispreinstalledonthecomputer.Itenablesyoutotestmemorymodulesand
internalstoragedevices,viewsysteminformation,andcheckandrecoverbadsectorsoninternalstorage
devices.

ToruntheUEFIdiagnosticprogram,dothefollowing:

1.Turnonthecomputer.Ifthecomputercannotbeturnedon,goto“Powersystemcheckout”onpage26,
andcheckthepowersources.Ifanerrorcodeisdisplayed,goto“Symptom-to-FRUindex”onpage35
forerrorcodedescriptionsandtroubleshootinghints.

2.Whenthelogoscreenisdisplayed,repeatedlypressandreleasetheF10key.Themainscreenofthe
UEFIdiagnosticprogramisdisplayed.

3.Followtheinstructionsonthescreentousethediagnosticprogram.

Theoptionsonthemainscreenareasfollows:

Table1.ItemsonthemainscreenoftheUEFIdiagnosticprogram

TestsTools

•QuickMemoryT est

•QuickStorageDeviceT est

•LCDtest

•PCI-etest

•ExitApplication

•SystemInformation

•Generateconfigurationfile

•Executefromconfigurationfile

•RecoverBadSectorsTool*

*RecoverBadSectorsToolisonlyavailableoncomputersthathaveharddiskdrivesinstalled.

Bootablediagnosticprograms

IfthecomputeryouareservicingisnotinstalledwiththeUEFIdiagnosticprogram,youcandownloada
bootablediagnosticprogramfromtheLenovoSupportWebsite.Thebootablediagnosticprogramsenable
youtotestcomputermemoryandinternalstoragedevices,viewsysteminformation,andcheckandrecover

Chapter3.Generalcheckout25

theinternalstoragedevices.Tousethebootablediagnosticprograms,youcancreateabootablediagnostic
mediumonaUniversalSerialBus(USB)deviceorCD.

Tocreateabootablediagnosticmedium,dothefollowing:

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

page35forerrorcodedescriptionsandtroubleshootinghints.

3.Whenthelogoscreenisdisplayed,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
page35

forerrorcodedescriptionsandtroubleshootinghints.

2.Connectanexternalopticaldrivetothecomputer,andinserttheCDintotheopticaldrive.

3.Restartthecomputer.

4.Whenthelogoscreenisdisplayed,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.Insertastraightenedpaperclipintotheemergency-resetholetoresetthecomputer.Ifthecomputeris
stillpoweredon,itmeansthattheacpoweradapterisfunctional.

5.Turnoffthecomputer.

6.Disconnecttheacpoweradapterandturnonthecomputer.Ifthecomputercanbeturnedon,it
meansthatthebatterypackisfunctional.

Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:

•“Checkingtheacpoweradapter”onpage27

•“Checkingtheexternalbatterypackandtheoperationalcharging”onpage27

•“Checkingthecoin-cellbattery”onpage28

26ThinkPadL460HardwareMaintenanceManual

Checkingtheacpoweradapter

Youareherebecausethecomputerfailsonlywhentheacpoweradapterisused.

•Ifthepowerproblemoccursonlywhenthedockingstationortheportreplicatorisused,replacethe
dockingstationortheportreplicator.

•Ifthesystem-statusindicatordoesnotblinkthreetimeswhenanacpowersourceisconnected,check
thepowercordoftheacpoweradapterforcorrectcontinuityandinstallation.

•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingtheexternalbatterypackandthe
operationalcharging”onpage27

.

Tochecktheacpoweradapter,dothefollowing:

1.Unplugtheacpoweradaptercablefromthecomputer.

2.Measuretheoutputvoltageattheplugoftheacpoweradaptercable.Seethefollowingillustration:

Pin

Voltage(Vdc)

1+20

20

3

Ground

(20V)

1

3

2

Note:Outputvoltageofpin2oftheacpoweradaptermightdifferfromtheoneyouareservicing.

3.Ifthevoltageisnotcorrect,replacetheacpoweradapter.

4.Ifthevoltageisacceptable,replacethesystemboard.

Note:Noisefromtheacpoweradapterdoesnotalwaysindicateadefect.

Checkingtheexternalbatterypackandtheoperationalcharging

Checkingtheexternalbatterypack

Thiscomputersupportsonlybatteriesspeciallydesignedforthisspecificsystemandmanufacturedby
Lenovooranauthorizedbuilder.Thesystemdoesnotsupportunauthorizedbatteriesorbatteriesdesigned
forothersystems.Ifanunauthorizedbatteryorabatterydesignedforanothersystemsisinstalled,the
systemwillnotcharge.

Attention:Lenovohasnoresponsibilityfortheperformanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingoutoftheiruse.

Moveyourpointertothebattery-statusiconintheWindowsnotificationareatocheckthebatterystatus.
Thebattery-statusicondisplaysthepercentageofbatterypowerremainingandhowlongyoucanuse
yourcomputerbeforeyoumustchargethebattery.

Note:Iftheexternalbatterypackbecomeshot,itmaynotbeabletocharge.Removeitfromthecomputer
andleaveitatroomtemperatureforawhile.Afteritcoolsdown,reinstallandrechargeit.

Tochecktheexternalbatterypack,dothefollowing:

1.Poweroffthecomputer.

2.Removetheexternalbatterypackandmeasurethevoltagebetweenbatteryterminals1(+)and7
(-).Seethefollowingfigure:

Chapter3.Generalcheckout27

Terminal

Voltage(Vdc)

1,2+0to+12.6

6,7

Ground(-)

1(+)

2(+)

3

4

5

6(-)

7(-)

3.Ifthevoltageislessthan+11.0Vdc,theexternalbatterypackhasbeendischarged.

Ifthevoltageisstilllessthan+11.0Vdcafterrecharging,replacetheexternalbatterypack.

4.Ifthevoltageismorethan+11.0Vdc,measuretheresistancebetweenbatteryterminals5and7.The
resistancemustbe4to30KΩ.Iftheresistanceisnotcorrect,replacetheexternalbatterypack.Ifthe
resistanceiscorrect,replacethesystemboard.

Checkingtheoperationalcharging

Tocheckwhetherthebatterypackchargesproperlyduringoperation,dothefollowing:

1.Dischargethebatterypackuntiltheremainedbatterypowerislessthan50%.

2.Connectthecomputertoacpowertochargethebatterypack.IfthebatterystatusiconintheWindows
notificationareaindicatesthatthebatterypackisnotcharging,removethebatterypackandletit
returntoroomtemperature.

3.Reinstallthebatterypack.Ifthebatterypackisstillnotcharging,replacethebatterypack.

4.Checkthebatterystatusiconagain.Ifthesameerrorstillexists,replacethesystemboard.

Checkingthecoin-cellbattery

Tocheckthecoin-cellbattery,dothefollowing:

1.Removethecoin-cellbattery.See“1130Coin-cellbattery”onpage84.

2.Measurethevoltageofthecoin-cellbattery.Seethefollowingillustration.

Wire

Voltage(Vdc)

Red+2.5to+3.2

Black

Ground

•Ifthevoltageiscorrect,replacethesystemboard.

•Ifthevoltageisnotcorrect,replacethecoin-cellbattery.

•Ifthecoin-cellbatterydischargesquicklyafterreplacement,replacethesystemboard.

28ThinkPadL460HardwareMaintenanceManual

Chapter4.Relatedserviceinformation

Thischapterpresentsfollowinginformation:

•“RestoringthefactorycontentsbyusingtheRecoveryDiscSet”onpage29

•“RecoveryoverviewfortheWindows10operatingsystem”onpage30

•“Passwords”onpage32

•“Powermanagement”onpage33

•“Symptom-to-FRUindex”onpage35

ServiceWebsite:Whenthelatestmaintenancedisketteandthesystemprogramservicediskettebecome
available,theywillbepostedonhttp://www.lenovo.com/support

RestoringthefactorycontentsbyusingtheRecoveryDiscSet

Whenthemainstoragedriveisreplacedbecauseofafailure,noproductrecoveryprogramisonthenew
drive.Inthiscase,thecustomermustusetheRecoveryDiscSettorecoverthecomputer.Orderthe
RecoveryDiscSetandthedriveatthesametimesothatthecustomercanrestorethecomputertothe
factorydefaultsettingsbyusingtheRecoveryDiscSetafterthenewdriveisinstalled.Forinformationabout
whichdiscstoorder,gotohttp://www.lenovo.com/serviceparts-lookup.

Dependingonthemodel,thenumberofrecoverydiscsincludedintheRecoveryDiscSetdiffers.The
RecoveryDiscSetmightconsistoftheuserinstructionsandthefollowingsetofDVDstorestorethe
computertotheoriginalfactoryconfiguration.

•OperatingSystemRecoveryDisc(onedisc):ThisdiscrestorestheMicrosoftWindowsoperatingsystem.
Usethisdisctostarttherecoveryprocess.

•ApplicationsandDriversRecoveryDisc(oneormorediscs):Thisdiscrestoresthepreinstalled
applicationsanddriversonthecomputer.

•SupplementalRecoveryDisc:Thisdisccontainsadditionalcontent,suchasupdatestothesoftwarethat
waspreinstalledonthecomputer.NotallrecoverydiscsetscomewithaSupplementalRecoveryDisc.

Notes:

•Y oumusthaveaDVDdrivetousetherecoverydiscs.IfyoudonothaveaninternalDVDdrive,you
canuseanexternalUSBDVDdrive.

•Duringtherecoveryprocess,alldataonthedrivewillbedeleted.Ifpossible,copyanyimportantdata
orpersonalfilesthatyouwanttokeepontoremovablemediaoranetworkdrivebeforeyoustartthe
recoveryprocess.

•Recoverycantakeonetotwohourstocomplete.Thelengthoftimedependsonthemethodyouuse.If
youuserecoverydiscs,therecoveryprocesswilltakeabouttwohours.

TorestorethecomputertotheoriginalfactoryconfigurationusingtheRecoveryDiscSet,dothefollowing:

1.MaketheCD/DVDdrivethefirststartupdeviceinthestartupsequenceusingthefollowingprocedure:

a.PressandholddowntheF1key,andthenturnonthecomputer.Whenthelogoscreenisdisplayed

orwhenyouhearrepeatingbeeps,releasetheF1key.TheThinkPadSetupprogramopens.

b.UsethearrowkeystoselectStartup➙Boot.

c.SelecttheCD/DVDdriveasthe1stBootDevice.

2.InserttheOperatingSystemRecoveryDiscintotheDVDdrive.

3.PressF10tosavetheThinkPadSetupprogramconfigurationchanges.Followtheinstructionsonthe
screentobegintherecoveryprocess.

©CopyrightLenovo2016

29

4.SelectyourlanguageandclickNext.

5.Readthelicense.Ifyouagreewiththetermsandconditions,selectIacceptthesetermsand
conditionsandthenclickNext.Ifyoudonotagreewiththetermsandconditions,followthe
instructionsonthescreen.

6.ClickYesinthedisplayedwindowtobegintheoperatingsystemrecoveryprocess.

7.InserttheApplicationsandDriversRecoveryDiscwhenpromptedandthenclickOKtobeginthe
processofrecoveringapplicationsanddrivers.

8.IfyouhaveaSupplementalRecoveryDisc,insertitwhenpromptedandclickYes.Ifyoudonothavea
SupplementalRecoveryDisc,clickNo.

9.Whenallofthedatahasbeencopiedfromthelastdiscinthesetandhasbeenprocessed,removethe
discandrestartthecomputer.

Note:Therestoftherecoveryprocessisfullyautomatedandnoactionfromyouisrequired.The
computerwillrestartintotheMicrosoftWindowsdesktopseveraltimesandyoumightexperience
periodswhennoactivityisapparentonthescreenforseveralminutesatatime.Thisisnormal.

10.Whentherecoveryprocessiscomplete,theSetUpWindowsscreenisdisplayed.Followthe
instructionsonthescreentocompletetheWindowssetup.

11.AfteryouhavecompletedtheWindowssetup,youmightwanttorestoretheoriginalstartupsequence.
StarttheThinkPadSetupprogramandthenpressF9torestorethedefaultsettings.PressF10tosave
changesandexittheThinkPadSetupprogram.

Note:Afterrestoringadrivetothefactorydefaultsettings,youmightneedtoreinstallsomedevicedrivers.

RecoveryoverviewfortheWindows10operatingsystem

TheWindowsrecoveryprogramsenableyoutoresetyourcomputeroruseadvancedstartupoptions.

ItisrecommendedthatyoucreatearecoveryUSBdriveasearlyaspossible.StoretherecoveryUSBdrive
asabackuporreplacementfortheWindowsrecoveryprograms.

Formoreinformation,see“CreatingandusingarecoveryUSBdrive”onpage31

.

Resettingyourcomputer

Ifyourcomputerdoesnotperformwell,youmightconsiderresettingyourcomputer.Intheresettingprocess,
youcanchoosetokeepyourfilesorremovethem,andthenreinstalltheWindowsoperatingsystem.

Toresetyourcomputer,dothefollowing:

Note:Thegraphicaluserinterface(GUI)itemsoftheoperatingsystemmightchangewithoutnotice.

1.OpentheStartmenuandthenclickSettings.IfSettingsisnotdisplayed,clickAllappstodisplayall

programs,andthenclickSettings➙Update&security➙Recovery.

2.IntheResetthisPCsection,clickGetstarted.

3.Followtheinstructionsonthescreentoresetyourcomputer.

Usingadvancedstartupoptions

Withadvancedstartupoptions,youcanchangethefirmwaresettingsofthecomputer,changethestartup
settingsoftheWindowsoperatingsystem,startthecomputerfromanexternaldevice,orrestorethe
Windowsoperatingsystemfromasystemimage.

Touseadvancedstartupoptions,dothefollowing:

Note:TheGUIitemsoftheoperatingsystemmightchangewithoutnotice.

30ThinkPadL460HardwareMaintenanceManual

1.OpentheStartmenuandthenclickSettings.IfSettingsisnotdisplayed,clickAllappstodisplayall

programs,andthenclickSettings➙Update&security➙Recovery.

2.IntheAdvancedstartupsection,clickRestartnow➙Troubleshoot➙Advancedoptions.

3.Selectadesiredstartupoption,thenfollowtheinstructionsonthescreen.

RecoveringyouroperatingsystemifWindows10failstostart

TheWindowsrecoveryenvironmentonyourcomputeriscapableofoperatingindependentlyfromthe
Windows10operatingsystem.Thisenablesyoutorecoverorrepairtheoperatingsystemevenifthe
Windows10operatingsystemfailstostart.

Aftertwoconsecutivefailedbootattempts,theWindowsrecoveryenvironmentstartsautomatically.Then
youcanchooserepairandrecoveryoptionsbyfollowingtheinstructionsonthescreen.

Note:Ensurethatyourcomputerisconnectedtoacpowerduringtherecoveryprocess.

CreatingandusingarecoveryUSBdrive

YoucancreatearecoveryUSBdriveasabackupfortheWindowsrecoveryprograms.Withtherecovery
USBdrive,youcantroubleshootandfixtheproblemsevenifthepreinstalledWindowsrecoveryprograms
aredamaged.

CreatingarecoveryUSBdrive

TheUSBdrivethatyouusetocreatetherecoveryUSBdrivemustbeatleast16GBofstorage.Theactual
USBcapacitythatisrequireddependsonthesizeoftherecoveryimage.

Attention:ThecreationprocessdeletesanythingstoredontheUSBdrive.T oavoiddataloss,makea
backupcopyofallthedatathatyouwanttokeep.

TocreatearecoveryUSBdrive,dothefollowing:

Note:Ensurethatyourcomputerisconnectedtoacpowerduringthefollowingprocess.

1.ConnectaproperUSBdrive(atleast16GBofstorage).

2.Typerecoveryinthesearchboxonthetaskbar.ThenclickCreatearecoverydrive.

3.ClickYesintheUserAccountControlwindowtoallowtheRecoveryMediaCreatorprogramtostart.

4.IntheRecoveryDrivewindow,followtheon-screeninstructionstocreatearecoveryUSBdrive.

UsingtherecoveryUSBdrive

Ifyoucannotstartyourcomputer,usetherecoveryUSBdrivetorecoveryourcomputer.

TousearecoveryUSBdrive,dothefollowing:

Note:Ensurethatyourcomputerisconnectedtoacpower.

1.ConnecttherecoveryUSBdrivetothecomputer.

2.Turnonorrestartthecomputer.BeforetheWindowsoperatingsystemstarts,repeatedlypresstheF12
key.TheBootMenuwindowopens.

3.SelecttherecoveryUSBdriveasthebootdevice.

4.Selectapreferredkeyboardlayout.

5.ClickTroubleshoottodisplaytheoptionalrecoverysolutions.

6.Selectacorrespondingrecoverysolutionaccordingtoyoursituation.Thenfollowtheinstructionson
thescreentocompletetheprocess.

Chapter4.Relatedserviceinformation31

Passwords

AsmanyasthreepasswordsmaybeneededforanyThinkPadnotebookcomputer:thepower-onpassword,
theharddiskpassword,andthesupervisorpassword.

Ifanyofthesepasswordshasbeenset,apromptforitwillbedisplayedonthescreenwheneverthe
computeristurnedon.Thecomputerdoesnotstartuntilthepasswordisentered.

Note:Ifonlyasupervisorpasswordisset,thepasswordpromptwillnotbedisplayedwhentheoperating
systemisstarted.

Power-onpassword

Apower-onpasswordprotectsthesystemfrombeingpoweredonbyanunauthorizedperson.The
passwordmustbeenteredbeforeanoperatingsystemcanbestarted.Forinstructionsonhowtoremove
thepower-onpassword,see“Howtoremovethepower-onpassword”onpage32

.

Harddiskpassword

Therearetwokindsofharddiskpasswords:

•Userharddiskpassword-fortheuser

•Masterharddiskpassword-forthesystemadministrator,whocanuseittogetaccesstotheharddisk
eveniftheuserhaschangedtheuserharddiskpassword

Note:Therearetwomodesfortheharddiskpassword:UseronlyandMaster+User.TheMaster+User
moderequirestwoharddiskpasswords;thesystemadministratorentersbothinthesameoperation.The
systemadministratorthenprovidestheuserharddiskpasswordtothesystemuser.

Attention:Iftheuserharddiskpasswordhasbeenforgotten,checkwhetheramasterharddiskpassword
hasbeenset.Ifithas,itcanbeusedforaccesstotheharddiskdrive.Ifnomasterharddiskpasswordis
available,neitherLenovonorLenovoauthorizedservicetechniciansprovideanyservicestoreseteither
theuserorthemasterharddiskpassword,ortorecoverdatafromtheharddiskdrive.Theharddiskdrive
canbereplacedforascheduledfee.

Forhowtoremovetheharddiskpassword,see“Howtoremovetheharddiskpassword”onpage33

.

Supervisorpassword

AsupervisorpasswordprotectsthesysteminformationstoredintheThinkPadSetup.Theusermustenter
thesupervisorpasswordinordertogetaccesstotheThinkPadSetupandchangethesystemconfiguration.

Attention:Ifthesupervisorpasswordhasbeenforgottenandcannotbemadeavailabletotheservice
technician,thereisnoserviceproceduretoresetthepassword.Thesystemboardmustbereplacedfor
ascheduledfee.

Howtoremovethepower-onpassword

Toremoveapower-onpassword,dothefollowing:

Ifnosupervisorpasswordhasbeenset,dothefollowingtoremovethepower-onpassword:

1.Turnoffthecomputer.

2.Removetheexternalbatterypack.Forinstructionsonhowtoremovetheexternalbatterypack,see
“1020Externalbatterypack”onpage62.

3.Removethecoin-cellbattery.Forinstructionsonhowtoremovethecoin-cellbattery,see“1130
Coin-cellbattery”onpage84

.Waitforafewseconds.

32ThinkPadL460HardwareMaintenanceManual

4.Reinstallthecoin-cellbattery.Forinstructionsonhowtoinstallthecoin-cellbattery,see“1130Coin-cell
battery”onpage84.

5.Reinstalltheexternalbatterypack.Forinstructionsonhowtoinstalltheexternalbatterypack,see
“1020Externalbatterypack”onpage62.

6.Turnonthecomputerandwaituntilthepower-onself-test(POST)ends.AfterthePOSTends,the
passwordpromptdoesnotappear.Thepower-onpasswordhasbeenremoved.

Ifasupervisorpasswordhasbeensetandisknowntotheservicetechnician,dothefollowingtoremove
thepower-onpassword:

1.Turnonthecomputer.

2.Whenthelogoscreencomesup,immediatelypressthespeaker-mutekey.

3.TypethesupervisorpasswordtoentertheThinkPadSetupprogram.

4.SelectSecurity.

5.SelectPassword.

6.SelectPower-OnPassword.

7.TypethecurrentsupervisorpasswordintheEnterCurrentPasswordfield.thenleavetheEnter
NewPasswordfieldblank,andpressEntertwice.

8.IntheChangeshavebeensavedwindow,pressEnter.

9.PressthesearchkeytosavechangesandexittheThinkPadSetupprogram.

Howtoremovetheharddiskpassword

Attention:IfUseronlymodeisselectedandtheuserharddiskpasswordhasbeenforgottenandcannotbe

madeavailabletotheservicetechnician,neitherLenovonorLenovoauthorizedservicetechniciansprovide
anyservicestoresettheuserharddiskpasswordsortorecoverdatafromtheharddiskdrive.T oputthe
systembacktooperationalstatus,theonlyLenovoandLenovo-authorizedservicesolutionwouldbeto
replacetheharddiskdriveorsolid-statedrivewithascheduledfee.

Toremoveauserharddiskpasswordthathasbeenforgotten,whenthesupervisorpasswordandmaster
harddiskpasswordareknown,dothefollowing:

1.Turnonthecomputer.

2.Whenthelogoscreencomesup,immediatelypressthespeaker-mutekeytoentertheThinkPad
Setupprogram.

3.SelectSecurity.

4.SelectPassword.

5.SelectHarddiskxpassword,wherexistheletteroftheharddiskdrive.Apop-upwindowopens.

6.SelectMasterharddiskpassword.

7.TypethecurrentmasterharddiskpasswordintheEnterCurrentPasswordfield.ThenleavetheEnter
NewPasswordfieldblank,andpressEntertwice.

8.PressthesearchkeytosavechangesandexittheThinkPadSetupprogram.Theuserharddisk
passwordandthemasterharddiskpasswordhavebeenremoved..

Powermanagement

Toreducepowerconsumption,thecomputerhasthreepowermanagementmodes:screenblank,sleep,
andhibernation.

Chapter4.Relatedserviceinformation33

Screenblankmode(fortheWindows7operatingsystemonly)

Ifthetimesetonthe“Turnoffmonitor”timerintheoperatingsystemexpires,theLCDbacklightturnsoff.

Toputthecomputerintoscreenblankmode,dothefollowing:

1.Right-clickthebatterystatusindicatoronthetaskbar.

2.SelectPoweroffdisplay.

Toendscreenblankmodeandresumenormaloperation,pressanykey.

Sleepmode

Whenthecomputerenterssleepmode,thefollowingeventsoccurinadditiontowhatoccursinscreen
blankmode:

•TheLCDispoweredoff.

•Theharddiskdriveorsolid-statedriveispoweredoff.

•Themicroprocessorstops.

Toputyourcomputerintosleepmode,dothefollowing:

•ForWindows7:OpentheStartmenu,thenclickthearrownexttotheShutdownbutton.ClickSleep
fromthemenudisplayed.

•ForWindows10:OpentheStartmenu,click

Power,andthenclickSleep.

Incertaincircumstances,thecomputergoesintosleepmodeautomatically:

•Afteraperiodofinactivityspecifiedinpowerplansettings

•Whenthebatterypowerislow

Hibernationmode

Inhibernationmode,thefollowingoccurs:

•Thesystemstatus,randomaccessmemory(RAM),videorandomaccessmemory(VRAM),andsetup
dataarestoredontheharddiskdriveorsolid-statedrive.

•Thesystemispoweredoff.

Note:Ifthecomputerentersthehibernationmodewhileitisdockedtothedockingstationortheport
replicator,donotundockitbeforeresumingnormaloperation.Ifyoudoundockitandthentrytoresume
normaloperation,youwillgetanerrormessage,andyouwillhavetorestartthesystem.

Ifyouhavedefinedoneofthefollowingactionsastheeventthatcausesthesystemtogointohibernation
mode,performthataction.

•Closingthelid.

•Pressingthepowerbutton.

Also,thecomputergoesintohibernationmodeautomaticallyafteraperiodofinactivityspecifiedinpower
plansettings.

Whenthepoweristurnedon,thecomputerreturnsfromhibernationmodeandresumesoperation.The
hibernationfileinthebootrecordontheharddiskdriveorsolid-statedriveisread,andsystemstatusis
restoredfromtheharddiskdriveorsolid-statedrive.

34ThinkPadL460HardwareMaintenanceManual

Symptom-to-FRUindex

Thissectioncontainsfollowinginformation:

•“Numericerrorcodes”onpage35

•“Errormessages”onpage36

•“Beepsymptoms”onpage37

•“No-beepsymptoms”onpage37

•“LCD-relatedsymptoms”onpage37

•“Intermittentproblems”onpage38

•“Undeterminedproblems”onpage38

Thesymptom-to-FRUindexinthissectionlistssymptomsanderrorsandtheirpossiblecauses.Themost
likelycauseislistedfirst,inboldfacetype.

Note:DotheFRUreplacementorotheractionsinthesequenceshowninthecolumnheaded“FRUor
action,insequence. ”IfreplacingaFRUdoesnotsolvetheproblem,puttheoriginalpartbackinthe
computer.DonotreplaceanondefectiveFRU.

Thisindexcanalsohelpyoudetermine,duringregularservicing,whatFRUsarelikelytoneedtobe
replacednext.

AnumericerrorisdisplayedforeacherrordetectedinPOSTorsystemoperation.Inthedisplays,ncan
beanynumber.

Ifnonumericcodeisdisplayed,checkthenarrativedescriptionsofsymptoms.Ifthesymptomisnot
describedthere,goto“Intermittentproblems”onpage38

.

Note:ForadevicenotsupportedbydiagnosticcodesintheThinkPadnotebookcomputers,seethe
manualforthatdevice.

Numericerrorcodes

Table2.Numericerrorcodes

Symptomorerror

FRUoraction,insequence

0177

BadSVPdata,stopPOSTtask—Thechecksumofthe
supervisorpasswordintheEEPROMisnotcorrect.

Replacethesystemboard.

0183

BadCRCofSecuritySettingsinEFIVariable.Enterthe
ThinkPadSetupprogram.–ThechecksumoftheSecurity
settingsintheEFIVariableisnotcorrect.

1.RuntheThinkPadSetupprogram.Thesettings

willbecorrectedautomatically.Thensavethe
currentsettingsbypressingF10.

2.Replacethesystemboard.

0187

EAIAdataaccesserror—TheaccesstoEEPROMisfailed.

Replacethesystemboard.

0188

InvalidRFIDSerializationInformationArea.

Replacethesystemboard.

0189

InvalidRFIDconfigurationinformationarea—The
EEPROMchecksumisnotcorrect.

Replacethesystemboard.

0190

Criticallow-batteryerror

1.Chargethebatterypack.

2.Replacethebatterypack.

0191

SystemSecurity—InvalidRemoteChangerequested.

1.RuntheThinkPadSetupprogram,andthensave

currentsettingbypressingF10.

2.Replacethesystemboard.

Chapter4.Relatedserviceinformation35

Table2.Numericerrorcodes(continued)

Symptomorerror

FRUoraction,insequence

0199

SystemSecurity—Securitypasswordretrycount
exceeded.

1.RuntheThinkPadSetupprogram.Theretrycount

willbereset.Thensavethecurrentsettingsby
pressingF10.

2.Replacethesystemboard.

1802

Unauthorizednetworkcardispluggedin—Turnoffand
removethenetworkcard.

1.Removenetworkcard.

2.Replacethesystemboard.

1820

Morethanoneexternalfingerprintreaderisattached.
Poweroffandremoveallbutthereaderthatyousetup
withinyourmainoperatingsystem.

Removeallbutthereaderthatyousetupforthe
authentication.

2000

ThinkVantageActiveProtectionsensordiagnosticsfailed.

Havethecomputerserviced.

2100

DetectionerroronHDD0(MainHDD)

1.Reseattheharddiskdrive.

2.Replacethemainharddiskdrive.

3.Replacethesystemboard.

2101

DetectionerroronSSD1(M.2)

1.ReseattheM.2solid-statedrive.

2.Replacethesolid-statedrive.

3.Replacethesystemboard.

2102

DetectionerroronSSD2(M.2)

1.ReseattheM.2solid-statedrive.

2.Replacethesolid-statedrive.

3.Replacethesystemboard.

2110

ReaderroronHDD0(MainHDD)

1.Reseattheharddiskdrive.

2.Replacethemainharddiskdrive.

3.Replacethesystemboard.

2111

ReaderroronSSD1(M.2)

1.ReseattheM.2solid-statedrive.

2.Replacethesolid-statedrive.

3.Replacethesystemboard.

2112

ReaderroronSSD2(M.2)

1.ReseattheM.2solid-statedrive.

2.Replacethesolid-statedrive.

3.Replacethesystemboard.

2200

MachineTypeandSerialNumberareinvalid.

Replacethesystemboard.

2201

MachineUUIDisinvalid

Replacethesystemboard.

Errormessages

Table3.Errormessages

Symptomorerror

FRUoraction,insequence

Fanerror.1.Replacethethermalfanassembly.

2.Applythermalgrease.

3.Replacethesystemboard.

Thermalsensingerror.Replacethesystemboard.

36ThinkPadL460HardwareMaintenanceManual

Table3.Errormessages(continued)

Symptomorerror

FRUoraction,insequence

Thebatteryinstalledisnotsupportedbythissystem
andwillnotcharge.Pleasereplacethebatterywiththe
correctLenovobatteryforthissystem.PresstheESC
keytocontinue.

Replacethebatterypack.

Thissystemdoesnotsupportbatteriesthatarenot
genuineLenovomadeorauthorized.Thesystemwill
continuetoboot,butmaynotchargeunauthorized
batteries.PresstheESCkeytocontinue.
Attention:Lenovohasnoresponsibilityforthe
performanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingout
oftheiruse.

Replacethebatterypack.

Beepsymptoms

Table4.Beepsymptoms

Symptomorerror

FRUoraction,insequence

Fourcyclesoffourshortbeeps

Replacethesystemboard.

Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,pause,andoneshortbeep(1–3–3–1
beeps)

1.Replacethememorymodule.

2.Replacethesystemboard.

FiveshortbeepsReplacethesystemboard.

Onelongandtwoshortbeeps

Replacethesystemboard.

Threeshortbeeps,pause,oneshortbeep,pause,one
moreshortbeep,pause,andthreeshortbeeps(3–1–1–3
beeps)

Havethecomputerserviced.

Fiveshortbeeps,pause,fivemoreshortbeeps,and
pause

Replacethesystemboard.

No-beepsymptoms

Table5.No-beepsymptoms

Symptomorerror

FRUoraction,insequence

Nobeep,power-onindicatoron,LCDblank,andno
POST.

1.Ensurethateveryconnectorisconnectedtightly
andcorrectly.

2.Reseatmemorymodule.

3.Replacethesystemboard.

Nobeep,power-onindicatoron,andLCDblankduring
POST.

1.Reseatmemorymodule.

2.Replacethesystemboard.

Thepower-onpasswordpromptappears.Apower-onpasswordorasupervisorpasswordisset.

TypethepasswordandpressEnter.

Theharddiskpasswordpromptappears.Aharddiskpasswordisset.T ypethepasswordand

pressEnter.

LCD-relatedsymptoms

Important:TheTFTLCDforthenotebookcomputercontainsmanythin-filmtransistors(TFTs).The

presenceofasmallnumberofdotsthataremissing,discolored,oralwayslightedischaracteristicofTFT

Chapter4.Relatedserviceinformation37

LCDtechnology,butexcessivepixelproblemscancauseviewingconcerns.IftheLCDyouareservicinghas
twoorlessvisibledefectivepixels,itshouldnotbeconsideredfaulty.However,iftheLCDhasthreeormore
visibledefectivepixels,itwillbedeemedasdefectivebyLenovoanditshouldbereplaced.

Notes:

•ThispolicyappliestoallThinkPadnotebookspurchasedon1January,2008orlater.

•LenovowillnotprovidewarrantyreplacementiftheLCDiswithinspecificationsbecausewecannot
guaranteethatanyreplacementLCDwillhavezeropixeldefects.

•OnepixelconsistsofR,G,Bsub-pixels.

Table6.LCD-relatedsymptoms

Symptomorerror

FRUoraction,insequence

Nobeep,power-onindicatoron,andablankLCDduring
POST.

Replacethesystemboard.

•LCDbacklightnotworking.

•LCDtoodark.

•LCDbrightnesscannotbeadjusted.

•LCDcontrastcannotbeadjusted.

1.ReseattheLCDcable.

2.ReplacetheLCDunit.

3.Replacethesystemboard.

•LCDscreenunreadable.

•Charactersmissingpixels.

•Screenabnormal.

•Wrongcolordisplayed.

1.Seeimportantnotefor“LCD-relatedsymptoms. ”

2.ReseatallLCDcable.

3.ReplacetheLCDunit.

4.Replacethesystemboard.

HorizontalorverticallinesdisplayedonLCD.ReplacetheLCDunit.

Intermittentproblems

Intermittentsystemhangproblemscanbeduetoavarietyofcausesthathavenothingtodowithahardware
defect,suchascosmicradiation,electrostaticdischarge,orsoftwareerrors.FRUreplacementshouldbe
consideredonlywhenaproblemrecurs.

Whenanalyzinganintermittentproblem,dothefollowing:

1.Runthediagnostictestforthesystemboardinloopmodeatleast10times.

2.Ifnoerrorisdetected,donotreplaceanyFRUs.

3.Ifanyerrorisdetected,replacetheFRUshownbytheFRUcode.Rerunthetesttoverifythatno
moreerrorsexist.

Undeterminedproblems

Ifthediagnostictestsdidnotidentifytheadapterordevicethathasfailed,ifwrongdevicesareinstalled,
orifthesystemsimplyisnotoperating,followtheseprocedurestoisolatethefailingFRU(donotisolate
FRUsthathavenodefects).

Verifythatallattacheddevicesaresupportedbythecomputer.

Verifythatthepowersupplybeingusedatthetimeofthefailureisoperatingcorrectly.See“Powersystem
checkout”onpage26.

1.Turnoffthecomputer.

2.VisuallycheckeachFRUfordamage.ReplaceanydamagedFRU.

3.Removeordisconnectallofthefollowingdevices:
a.Non- ThinkPaddevices
b.Devicesattachedtothedockingstationortheportreplicator
c.Printer,mouse,andotherexternaldevices
d.Batterypack

38ThinkPadL460HardwareMaintenanceManual

e.Harddiskdriveorsolid-statedrive
f.Externaldiskettedriveoropticaldrive
g.Memorymodule
h.PCcards

4.Turnonthecomputer.

5.Determinewhethertheproblemhasbeensolved.

6.Iftheproblemdoesnotrecur,reconnecttheremoveddevicesoneatatimeuntilyoufindthefailingFRU.

7.Iftheproblemremains,replacethefollowingFRUsoneatatime(donotreplaceanondefectiveFRU):
a.Systemboard
b.LCDunit

Chapter4.Relatedserviceinformation39

40ThinkPadL460HardwareMaintenanceManual

Chapter5.Statusindicators

Thischapterpresentsthestatusindicatorsthatshowthestatusofthecomputer.

2

3

4

5

6

Table7.Statusindicators

IndicatorMeaning

1Speaker-muteindicatorOn:Thespeakersaremuted.

2Microphone-muteindicator

On:Themicrophonesaremuted.

3Camera-statusindicatorOn:Thecameraisinuse.

©CopyrightLenovo2016

41

Table7.Statusindicators(continued)

IndicatorMeaning

46System-statusindicators

Blinksfast:Thecomputerisenteringsleeporhibernationmode.

Blinksforthreetimes:Thecomputerisinitiallyconnectedtopower.

Blinksslowly:Thecomputerisinsleepmode.

On:Thecomputerison(innormalmode).

Off:Thecomputerisofforinhibernationmode.

5FnLockindicator

Off:TheFnLockfunctionisdisabled.Toinitiatethespecialfunctionprintedas
anicononeachkey,pressthecorrespondingfunctionkeydirectly.ToinputF1­F12,presstheFnkeyandthecorrespondingfunctionkey.

On:TheFnLockfunctionisenabled.ToinputF1-F12,pressthecorresponding
functionkeydirectly.Toinitiatethespecialfunctionprintedasanicononeach
key,presstheFnkeyandthecorrespondingfunctionkey.

42ThinkPadL460HardwareMaintenanceManual

Chapter6.Functionkeys

Thefollowingtabledescribesthefunctionsoffunctionkeysandkeycombinations.

Table8.Functionkeys

Functionkeyand
keycombination

Description

Mutesorunmutesthespeakers.

Ifyoumutethesoundandturnoffyourcomputer,thesoundwillremainmutedwhenyou

turnonyourcomputeragain.Toturnonthesound,pressthespeaker-mutekey,

volume-downkey,orvolume-upkey.

Decreasesthespeakervolume.

Increasesthespeakervolume.

Mutesorunmutesthemicrophones.

Darkensthedisplay.

Brightensthedisplay.

Switchesthedisplayoutputlocationbetweenthecomputerdisplayandanexternalmonitor.

Enablesordisablesthewirelessfeatures.

ForWindows7:OpensControlPanel.

ForWindows10:OpenstheSettingswindow.

ForWindows7:OpensWindowsSearch.

ForWindows10:OpenstheCortana

®

searchbox.

Viewstheprogramsthatyouhaveopened.

ForWindows7:OpensComputer.

ForWindows10:Viewsalltheprograms.

Fn+Esc

YoucanconfiguretheFnkeyandfunctionkeysintheKeyboardPropertieswindowby
doingthefollowing:

1.GotoControlPanel.ChangetheviewofControlPanelfromCategorytoLargeicons
orSmallicons.

2.ClickKeyboard.IntheKeyboardPropertieswindow,clicktheFnandfunctionkeys
orThinkPadF1–F12keystab.

3.Selecttheoptionsofyourpreference.

PressFn+EsctoenableordisabletheFnLockfunction.

•WhentheFnLockfunctionisdisabled:TheFnLockindicatorisoff.Toinitiatethespecial
functionprintedasanicononeachfunctionkey,pressthecorrespondingfunctionkey
directly.ToinputF1-F12,presstheFnkeyandthecorrespondingfunctionkey.

©CopyrightLenovo2016

43

Table8.Functionkeys(continued)

Functionkeyand
keycombination

Description

•WhentheFnLockfunctionisenabled:TheFnLockindicatorturnson.ToinputF1-F12,
pressthecorrespondingfunctionkeydirectly.Toinitiatethespecialfunctionprintedasan
icononeachfunctionkey,presstheFnkeyandthecorrespondingfunctionkey.

Fn+B

HasthesamefunctionastheBreakkeyonaconventionalkeyboard.

Fn+P

HasthesamefunctionasthePausekeyonaconventionalkeyboard.

Fn+SHasthesamefunctionastheSysRqkeyonaconventionalkeyboard.

Fn+K

HasthesamefunctionastheScrLKkeyonaconventionalkeyboard.

44ThinkPadL460HardwareMaintenanceManual

Chapter7.Locations

Thischapterintroducesthelocationsofthehardwarecomponentsonyourcomputer.

Locatingcomputercontrols,connectors,andindicators

Thistopicintroducesthelocationsofthecomputercontrols,connectors,andindicators.

Frontview

12

13

11

10

1

2

2

3

4

5

6

7

8

9

1Camera(availableonsomemodels)2Microphones(availableonsomemodels)

3Powerbutton

4Security-lockslot

5VGAconnector

6Ethernetconnector

7MiniDisplayPort

®

connector

8USB3.0connectors

9SIM-cardslot(availableonsomemodels)10Fingerprintreader(availableonsomemodels)

11T rackpad12TrackPoint

®

buttons

13TrackPointpointingstick

©CopyrightLenovo2016

45

Rearview

1

2

3

4

5

1Smart-cardslot(availableonsomemodels)

2Audioconnector

3AlwaysOnUSB3.0connector

4F anlouvers

5acpowerconnector

Bottomview

1

2

3

3

4

1Externalbatterypack

2Docking-stationconnector(availableonsomemodels)

3Speakers

4Keyboarddrainageholes

46ThinkPadL460HardwareMaintenanceManual

LocatingFRUsandCRUs

Thistopicintroducesthefollowingserviceparts:

•“MajorFRUsandCRUs”onpage48

•“LCDFRUs”onpage50

•“Miscellaneousparts”onpage51

Notes:

•EachFRUisavailableforalltypesormodels,unlessotherwisespecified.

•FRUSmarkedwithOPareavailableasoptions.

•CRUstatementforcustomers:
Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,calleda
“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothersare
designatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.Foroptional-service

CRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProviderinstalltheCRUaccording
tothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,LenovowillshiptheCRUtoyou.CRU

informationandreplacementinstructionsareshippedwithyourproductandareavailablefromLenovoatanytime
uponrequest.Y oucanfindalistofCRUsforyourproductinthisHardwareMaintenanceManual.Anelectronic
versionofthismanualcanbefoundathttp://www.lenovo.com/support.Followtheon-screeninstructionstofind
themanualforyourproduct.Y oumightberequiredtoreturnthedefectivepartthatisreplacedbytheCRU.
Whenreturnisrequired:(1)returninstructions,aprepaidshippinglabel,andacontainerwillbeincludedwith
thereplacementCRU;and(2)youmightbechargedforthereplacementCRUifLenovodoesnotreceivethe
defectiveCRUwithinthirty(30)daysofyourreceiptofthereplacementCRU.SeeyourLenovoLimitedWarranty
documentationforfulldetails.

ThinkPadcomputerscontainthefollowingtypesofCRUs:
–Self-serviceCRUs:TheseCRUsunplugorareheldbynomorethantwoscrews.Examplesofthesetypes

ofCRUsincludetheacpoweradapter,powercord,andharddiskdrive.Otherself-serviceCRUsdepending
onproductdesignmightincludethememorymodule,wirelesscard,keyboard,andpalmrestwithfingerprint
readerandtouchpad.

–Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerthatareconcealedbyanaccess

panelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,thespecific
CRUisvisible.

Chapter7.Locations47

MajorFRUsandCRUs

21

20

19

18

17

15

16

31

30

25

24

26

27

28

29

22

23

1

2

4

6

5

7

9

10

11

12

13

14

8

3

Note:Dependingonthecomputermodel,thekeyboardbezelassembly2ofyourcomputermightlook
differentfromtheillustrationabove.

Table9.MajorFRUsandCRUs

No.FRUdescription

Self-serviceCRUOptional-serviceCRU

1

LCDunit

NoNo

2KeyboardbezelassemblyNoNo

48ThinkPadL460HardwareMaintenanceManual

Table9.MajorFRUsandCRUs(continued)

No.FRUdescription

Self-serviceCRUOptional-serviceCRU

3DockingbracketNoNo

4

Systemboard

NoNo

5

VGAboard

NoNo

6

I/Obracket

NoNo

7

MemorymoduleYesNo

8

Harddiskdriveorsolid-statedrive

*

)

YesNo

9

Speakerassembly

NoNo

10ExternalbatterypackYesNo

11

SIM-cardtray

*

YesNo

12

SIM-carddummycover

*

YesNo

13

LenovofactoryrecoveryUSBkey

*

NoNo

14Lenovorecoverydiscset

*

NoNo

15PowercordYesNo

16acpoweradapterYesNo

17DockingdummydoorNoNo

18BasecoverassemblyY esNo

19KeyboardrubbersNoNo

20

Coin-cellbattery

YesNo

21Wireless-WANcard

*

YesNo

22Wireless-LANcardYesNo

23

Smart-cardbracket

*

NoNo

24

Smart-cardcable

*

NoNo

25

Smartcard

*

NoNo

26

Smart-carddummydoor

*

NoNo

27

USBandaudioboard

NoNo

28

Thermalfanassembly

NoNo

29dc-incableNoNo

30KeyboardNo

31TrackPointcap OP NoNo

*

Availableonsomemodels

Note:TheLenovofactoryrecoveryUSBkey

13 andtheLenovorecoverydiscset 14 areusedtorestorethe

MicrosoftWindowsoperatingsystem.Theymightnotcomewiththecomputer,andausermightorderthem
fromhttp://www.lenovo.com/lenovorecovery,thoughadditionalshippingandhandlingfeesmightapply.

Chapter7.Locations49

No

LCDFRUs

2

1

2

2

2

3

2

4

2

5

2

6

7

7

Table10.LCDFRUs

No.FRUdescriptions

Self-service
CRU

Optional-service
CRU

1

LCD-bezelsheet

NoNo

2

Camera/microphonemodule,cameramodule,ormicrophonemodule
(availableonsomemodels)

NoNo

3

LCDpanel

NoNo

4

Wireless-LAN/WANantennaassemblyorwireless-LANantenna

NoNo

5

LCDhinges

NoNo

6

LCDrear-coverassembly

NoNo

7

LCDcable

NoNo

50ThinkPadL460HardwareMaintenanceManual

Miscellaneousparts

Table11.Miscellaneouspart

FRUdescriptions

Self-service
CRU

Optional-service
CRU

Screwpack

•M2xL4

•M2xL3

•M2xL5

•M2xL7

•M2.5xL5

•M2.5xL6

•D4.7;H3.5

NoNo

Rubberkit

•Keyboardrubber

•Speakerrubber

•Sponge

NoNo

Connectorandcableguide

ThissectionprovidesinformationforLenovoauthorizedservicetechnicianstohelpidentifyconnectorsand
cablesforreplacementpurpose.T ovieweachFRUandtheexplodedillustrationofthecomputer,see“Major
FRUsandCRUs”onpage48and“LCDFRUs”onpage50.

Note:Dependingonyourmodel,someconnectorsorcablesmightnotbeavailable.

Chapter7.Locations51

Systemboardconnectorsandcables

1 2 3 4 5

6

7

8

910

1113 1214

15

16

17

18

19 20

21

22

Table12.Systemboard

No.

Connector/feature

Internalcablerequired

Cableconnection

1

Batteryconnector(internal)

No

Connecttheremovablebattery
directlytothisconnector.

2

Dockingconnector(internal)

No

Connectthesupporteddocking
stationdirectlytothisconnector.

3

dc-inconnector(internal)

dc-incable

Thepowerconnectorofthe
computercomeswiththedc-in
cable.Connectthecabletothis
connector.

4

Thermalfanconnector(internal)

ThermalfanassemblycableThethermalfanassemblycomes

withcable.Connectthecableto
thisconnector.

52ThinkPadL460HardwareMaintenanceManual

Table12.Systemboard(continued)

No.

Connector/feature

Internalcablerequired

Cableconnection

5

EmbededDisplayPort(eDP)
connector(internal)

LCDcableConnectoneendtotheLCD

panelandtheotherendtothis
connector.

6

Coin-cellbatteryconnector
(internal)

Coin-cellbatterycable

Thecoin-cellbatterycomeswith
cable.Connectthecabletothis
connector.

7

Smart-cardconnector(internal)Smart-cardcable

Thesmart-cardcomeswith
cable.Connectthecabletothis
connector

8

Speakerassemblyconnector
(internal)

Speakerassemblycable

Thespeakerassemblycomeswith
cable.Connectthecabletothis
connector.

9

Memorymoduleslots(internal)

NoInsertthememorymodulesinto

theseslots.

10

HDDconnector(internal)

NoInserttheHDDdirectlyintothis

slot.

11

Trackpadconnector(internal)

Trackpadcable

Connectoneendtothetrackpad
andtheotherendtothisconnector.

12

Wireless-LANcardslot(internal)

NoInsertthewireless-LANcardinto

thisslot.

13

Wireless-WANcardslot(internal)

NoInsertthewireless-LANcardinto

thisslot.

14

Fingerprintreaderconnector
(internal)

Fingerprintreadercardcable

Connectoneendtothefingerprint
readercardandtheotherendto
thisconnector.

15

USB3.0connector(external)

No

ConnectUSB-compatibledevices
tothisconnector.

16

USB3.0connector(external)

No

ConnectUSB-compatibledevices
tothisconnector.

17

MiniDisplayPortconnector
(external)

No

Connectacompatibleprojector,
externalmonitor,orhigh-definition
televisiontothisconnector.

18

Ethernetconnector(external)

No

ConnectthecomputertoaLAN
throughthisconnector.

19

Keyboardconnector(internal)

KeyboardcableThekeyboardcomeswithcable.

Connectthekeyboardcableto
thisconnector.

20

TrackPointpointingstickconnector
(internal)

TrackPointpointingstickcableThekeyboardcomeswith

theTrackPointpointingstick
cable.Connectthecabletothis
connector.

21

MicroSIMcardslot(external)

No

Ifthecomputersupportswireless
WAN,insertamicroSIMcardinto
thisslottoestablishwireless-WAN
connections.

22

USBandaudioboardconnector
(internal)

No

ConnecttheUSBandaudioboard
tothesystemboarddirectly

Chapter7.Locations53

USBandaudioboardconnectorsandcables

1

2

3

Table13.USBandaudioboard

No.

Connector/feature

Internalcablerequired

Cableconnection

1

USBandaudioboardconnector
(internal)

No

ConnecttheUSBandaudioboard
tothesystemboarddirectly

2

AlwaysOnUSBconnector
(external)

No

InsertUSB-compatibledevices
intotheUSBconenctor;

3

Audioconnector(external)

No

Connectheadphonesoraheadset
with3.5-mm(0.14-inch)4-pole
plugtotheaudioconnector.

VGAboardconnectorsandcables

1 2

Table14.VGAboardconnector

No.

Connector/feature

Internalcablerequired

Cableconnection

1

VGAconnector(external)

No

Connectacompatibleprojector,
externalmonitor,orhigh-definition
televisiontothisconnector

2

VGAboardconnector(internal)

No

ConnecttheVGAboardtothe
systemboarddirectly

Smart-cardconnectorandcable

1

54ThinkPadL460HardwareMaintenanceManual

Table15.Smart-cardcard

No.

Connector/feature

Internalcablerequired

Cableconnection

1

Smart-cardconnector(internal)Smart-cardcableConnectoneendtothesystem

boardandtheotherendtothis
connector.

LookingupFRUinformation

FordetailedFRUinformation,includingpartnumbers,descriptions,andsubstitutionpartnumbers,goto:
http://www.lenovo.com/serviceparts-lookup

Chapter7.Locations55

56ThinkPadL460HardwareMaintenanceManual

Chapter8.FRUreplacementnotices

Thischapterpresentsnoticesrelatedtoremovingandreplacingparts.Readthischaptercarefullybefore
replacinganyFRU.

CRUstatementforcustomers:

Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,called
a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothers
aredesignatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.For

optional-serviceCRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProvider
installtheCRUaccordingtothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,

LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshippedwithyour
productandareavailablefromLenovoatanytimeuponrequest.Y oucanfindalistofCRUsforyour
productinthisHardwareMaintenanceManual.Anelectronicversionofthismanualcanbefoundat
http://www.lenovo.com/support.ClickGuides&Manualsandthenfollowtheon-screeninstructionstofind
themanualforyourproduct.Y oumightberequiredtoreturnthedefectivepartthatisreplacedbytheCRU.
Whenreturnisrequired:(1)returninstructions,aprepaidshippinglabel,andacontainerwillbeincluded
withthereplacementCRU;and(2)youmightbechargedforthereplacementCRUifLenovodoesnot
receivethedefectiveCRUwithinthirty(30)daysofyourreceiptofthereplacementCRU.SeeyourLenovo
LimitedWarrantydocumentationforfulldetails.

Screwnotices

Loosescrewscancauseareliabilityproblem.IntheThinkPadnotebookcomputer,thisproblemisaddressed
withspecialnylon-coatedscrewsthathavethefollowingcharacteristics:

•Theymaintaintightconnections.

•Theydonoteasilycomeloose,evenwithshockorvibration.

•Theyarehardertotighten.

Dothefollowingwhenyouservicethismachine:

•Keepthescrewkitinyourtoolbag.Forthepartnumberofthescrewkit,goto
http://www.lenovo.com/serviceparts-lookup.

•Itisrecommendedtousenewscrews.

•Itisrecommendedtouseeachscrewonlyonce.

Tightenscrewsasfollows:

•Plastictoplastic
Turnanadditional90degreesafterthescrewheadtouchesthesurfaceoftheplasticpart.

90degreesmore

(Cross-section)

•Logiccardtoplastic
Turnanadditional180degreesafterthescrewheadtouchesthesurfaceofthelogiccard.

©CopyrightLenovo2016

57

180degreesmore

(Cross-section)

Notes:

•Ensurethatyouusethecorrectscrew.Itisrecommendedtousenewscrewsforreplacements.Ifyou
haveatorquescrewdriver,tightenallscrewsfirmlytothetorquespecifiedinthescrewinformation
tableforeachstep.

•Ensurethattorquescrewdriversarecalibratedcorrectlyfollowingcountryspecifications.

Retainingserialnumbers

Thistopicprovidesinstructionsonthefollowing:

•“Restoringtheserialnumberofthesystemunit”onpage58

•“RetainingtheUUID”onpage59

Restoringtheserialnumberofthesystemunit

Whenthecomputerwasmanufactured,theEEPROMonthesystemboardwasloadedwiththeserial
numbersofthesystemandallmajorcomponents.Thesenumbersneedtoremainthesamethroughout
thelifeofthecomputer.

Ifyoureplacethesystemboard,youmustrestoretheserialnumberofthesystemunittoitsoriginalvalue.

Theserialnumberofthesystemunitiswrittenonthelabelattachedtothebottomofthecomputer.

Ifyoucannotfindtheserialnumberofthesystemunitonthebottomofthecomputer,trythefollowing
methodtogetthenumber:

Note:Beforeyouperformtheoperation,ensurethattheUEFI/LegacysettingwithintheStartupmenuin
theThinkPadSetupprogramissettoUEFIOnly.

1.ConnectaUSBmemorykeytothecomputer.

2.Gotohttp://www.lenovo.com/maintenanceutilitiesandfollowtheinstructionsonthescreentocreatea
MaintenanceKey.

Note:OnlyanauthorizedLenovoservicetechniciancanaccesstheaboveWebsite.

3.Restartthecomputer.

4.Whenthelogoisdisplayed,pressEsc.TheThinkPadConfigInformationUpdateUtilityinterfaceis
displayed.

5.Type1underEntertheactiondesired,thenpressEnter.TheThinkPadSerialNumberUpdateUtilityfor
AssetIDscreenisdisplayed.

6.Type2underEntertheactiondesired,thenpressEnter.Theserialnumberofeachdeviceinyour
computerisdisplayed;theserialnumberofthesystemunitislistedasfollows:
20-Serialnumber

7.Recordtheserialnumberofthesystemunit.

Afteryoureplacethesystemboard,dothefollowingtorestoretheserialnumberofthesystemunit:

1.ConnecttheMaintenanceKeytothecomputer.

58ThinkPadL460HardwareMaintenanceManual

2.Whenthelogoisdisplayed,pressEsc.TheThinkPadConfigInformationUpdateUtilityinterfaceis
displayed.

3.Type1underEntertheactiondesired,thenpressEnter.TheThinkPadSerialNumberUpdateUtilityfor
AssetIDscreenisdisplayed.

4.Type1underEntertheactiondesired,thenpressEnter.Thenfollowtheinstructionsonthescreen
torestoretheserialnumberofthesystemunit.

RetainingtheUUID

TheUniversallyUniqueIdentifier(UUID)isa128-bitnumberuniquelyassignedtoyourcomputerat
productionandstoredintheEEPROMofyoursystemboard.

ThealgorithmthatgeneratesthenumberisdesignedtoprovideuniqueIDsuntiltheyearA.D.3400.Notwo
computersintheworldhavethesamenumber.

Whenyoureplacethesystemboard,performthefollowingstepstocreateanewUUIDforthesystem
boardifthesystemboarddoesnothaveaUUID:

Note:Beforeyouperformtheoperation,ensurethattheUEFI/LegacysettingwithintheStartupmenuin
theThinkPadSetupprogramissettoUEFIOnly.

1.ConnectaUSBmemorykeytothecomputer.

2.Gotohttp://www.lenovo.com/maintenanceutilitiesandfollowtheinstructionsonthescreentocreatea
MaintenanceKey.

Note:OnlyanauthorizedLenovoservicetechniciancanaccesstheaboveWebsite.

3.Restartthecomputer.

4.Whenthelogoscreenisdisplayed,pressEsc.TheThinkPadConfigInformationUpdateUtilityinterface
isdisplayed.

5.Type2underEntertheactiondesired,thenpressEnter.TheAutoUUIDgenerationutilityinterfaceis
displayed.

6.TypeyunderChangeUUID.OK?[Y/N],thenpressEnter.AnewUUIDiscreatedandwritten.Ifa
validUUIDalreadyexists,itisnotoverwritten.

ReadingorwritingtheECAinformation

InformationonEngineeringChangeAnnouncements(ECA)isstoredintheEEPROMofthesystemboard.
TheelectronicstorageofthisinformationsimplifiestheproceduretocheckiftheECAhasbeenpreviously
appliedtoamachine.ThemachinedoesnotneedtobedisassembledtocheckfortheECAapplication.

TocheckwhatECAshavebeenpreviouslyappliedtothemachine,usetheECAInformationRead/Write
functionontheLENOVOThinkPadHardwareMaintenanceDisketteorMaintenanceKey.

1.InsertthelatestversionofLENOVOThinkPadHardwareMaintenanceDisketteorMaintenanceKey,
andthenrestartthecomputer.

2.Fromthemainmenu,select6.SetECAInformation.

3.ToreadtheECAinformation,select2.ReadECA/reworknumberfromEEPROMandfollowthe
instructionsonthescreen;Toreadboxbuilddate,select5.ReadboxbuilddatefromEEPROM,and
followtheinstructionsonthescreen.

AfteranECAhasbeenappliedtothemachine,theEEPROMmustbeupdatedtoreflecttheECA's
application.UsethelatestversionofLENOVOThinkPadHardwareMaintenanceDisketteorMaintenance
KeytoupdatetheEEPROM.

Note:OnlytheECAnumberisstoredintheEEPROM.ThemachinetypeoftheECAisassumedtobethe
sameasthemachinetypeofthemachinethathadtheECAappliedtoit.

Chapter8.FRUreplacementnotices59

1.InsertthelatestversionofLENOVOThinkPadHardwareMaintenanceDisketteorMaintenanceKey,
andthenrestartthecomputer.

2.Fromthemainmenu,select6.SetECAInformation.

3.TowritetheECAinformation,select1.WriteECA/reworknumberfromEEPROM,andfollowthe
instruction;Towriteboxbuilddate,select4.WriteboxbuilddatefromEEPROM,andfollowthe
instructiononthescreen.

Ifthesystemboardisbeingreplaced,trytoreadtheECAinformationfromtheoldsystemboardandtransfer
theinformationtothenewsystem.Ifthesystemboardisinoperable,thiswillnotbepossible.

60ThinkPadL460HardwareMaintenanceManual

Chapter9.RemovingorreplacingaFRU

ThischapterprovidesinstructionsonhowtoremoveorreplaceaFRU.

CRUstatementforcustomers:

Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,called
a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothers
aredesignatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.For

optional-serviceCRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProvider
installtheCRUaccordingtothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,

LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshippedwithyour
productandareavailablefromLenovoatanytimeuponrequest.Y oucanfindalistofCRUsforyourproduct
inthisHardwareMaintenanceManual.Anelectronicversionofthismanualisavailablefordownloadingat
http://www.lenovo.com/support.Y oumightberequiredtoreturnthedefectiveCRU.Whenreturnisrequired:
(1)returninstructions,aprepaidshippinglabel,andacontainerwillbeincludedwiththereplacement
CRU;and(2)youmightbechargedforthereplacementCRUifLenovodoesnotreceivethedefective
partwithinthirty(30)daysofyourreceiptofthereplacementCRU.SeeyourLenovoLimitedWarranty
documentationforfulldetails.

Generalguidelines

WhenremovingorreplacingaFRU,besuretoobservethefollowinggeneralguidelines:

1.Donottrytoserviceanycomputerunlessyouhavebeentrainedandcertified.Anuntrainedpersonruns
theriskofdamagingparts.

2.BeforereplacinganyFRU,reviewChapter8“FRUreplacementnotices”onpage57.

3.BeginbyremovinganyFRUsthathavetoberemovedbeforereplacingthefailingFRU.AnysuchFRUs
arelistedatthebeginningofeachFRUreplacementsection.Removethemintheorderinwhichthey
arelisted.

4.FollowthecorrectsequenceinthestepsforremovingaFRU,asgivenintheillustrationsbythe
numbersinsquarecallouts.

5.Whenturningascrew,turnitinthedirectionasgivenbythearrowintheillustration.

6.WhenremovingaFRU,moveitinthedirectionasgivenbythearrowintheillustration.

7.ToputthenewFRUinplace,reversetheremovalprocedureandfollowanynotesthatpertainto
replacement.

8.WhenreplacingaFRU,usethecorrectscrewsasshowninthereplacementprocedures.

DANGER

BeforeremovinganyFRU,turnoffthecomputer,unplugallpowercordsfromelectricaloutlets,and
thendisconnectanyinterconnectingcables.

Attention:AfterreplacingaFRU,donotturnonthecomputeruntilyouhavemadesurethatallscrews,

springs,andothersmallpartsareinplaceandnonearelooseinsidethecomputer.Verifythisbyshaking
thecomputergentlyandlisteningforrattlingsounds.Metallicpartsormetalflakescancauseelectrical
shortcircuits.

Attention:Thesystemboardissensitiveto,andcanbedamagedby,electrostaticdischarge(ESD).
Beforetouchingit,establishpersonalgroundingbytouchingagroundpointwithonehandorbyusingan
electrostaticdischargestrap.

©CopyrightLenovo2016

61

1010SIM-cardtray

RemovalstepsoftheSIM-cardtray

2

1

1020Externalbatterypack

Importantnoticesforreplacingabatterypack

Attention:Lenovohasnoresponsibilityfortheperformanceorsafetyofunauthorizedbatteries,and

providesnowarrantiesforfailuresordamagearisingoutoftheiruse.

TheLenovoSolutionCenterprogramprovidesanautomaticbatterydiagnostictestthatdeterminesifthe
batterypackisdefective.AbatterypackFRUshouldnotbereplacedunlessthisdiagnostictestshows
thatthebatteryisdefective.Theonlyexceptiontothisisifthebatterypackisphysicallydamagedora
customerisreportingapossiblesafetyissue.

IftheLenovoSolutionCenterprogramisnotinstalledonthecomputer,thecustomershoulddownloadand
installtheprogramtodiagnosethebatterypack,beforegettinganon-physicallydamagedbatterypack
replaced.Notethatthereplacementofaphysicallydamagedbatterypackisnotcoveredbythewarranty.

Removalstepsoftheexternalbatterypack

DANGER

Useonlytheauthorizedbatteryspecifiedforyourcomputer.Anyotherbatterycouldigniteor
explode.

Note:Dependingonthecomputermodel,yourcomputermightlookdifferentfromthefollowingillustration.

Slidethebatterylatch

1totheunlockedposition,anddetachthebattery2fromthebasecoverontheleft.

62ThinkPadL460HardwareMaintenanceManual

1

1

2

Slidetheotherbatterylatch3totheunlockedposition,anddetachthebattery4fromthebasecover
ontheright.

2

3

4

Removethebattery5.

5

1030Keyboardrubbers

Foraccess,removethisFRU:

•“1020Externalbatterypack”onpage62

Removalstepsofthekeyboardrubbers

Obtainakeyboardmulti-tool.

Chapter9.RemovingorreplacingaFRU63

Usetheflatendofthekeyboardmulti-tooltoremovethekeyboardrubbers.

Note:Dependingonthecomputermodel,yourcomputermightlookdifferentfromthefollowingillustration.

1

1040Keyboard

Foraccess,removetheseFRUsinorder:

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

64ThinkPadL460HardwareMaintenanceManual

Removalstepsofthekeyboard

Note:Dependingonthecomputermodel,yourcomputermightlookdifferentfromtheillustrationsin

thistopic.

Usetheflatendofthekeyboardmulti-tooltoslidethekeyboardframeforwardby2.5mm(0.1inch).The
screwheadsbeneaththekeyboardframeareexposed.

Note:Donotpressorholdthekeyswhileslidingthekeyboardframe.Otherwise,thekeyboardframe
cannotbemoved.

1

Usethecrossendofthekeyboardmulti-tooltoloosenthescrews.

2

Pivotthekeyboardslightlyupwardasshownbythearrow3untilyoucanseetheconnectorsonthebottom
sideofthekeyboard.Thenturnoverthekeyboardasshownbythearrow4.

Chapter9.RemovingorreplacingaFRU65

3

4

Putthekeyboardonthepalmrestanddetachtheconnectors.Thenremovethekeyboard.

8

9

6

7

5

Wheninstalling

Attachtheconnectorsandthenturnoverthekeyboard.

66ThinkPadL460HardwareMaintenanceManual

2

1

4

3

5

6

Insertthekeyboardintothekeyboardbezel.Ensurethatthefrontedgeofthekeyboardisundertheframe
ofthekeyboardbezel.

7

7

Ensurethatthescrewheadsarecompletelyexposed.Otherwise,revealthescrewheadsbyslidingthe
keyboardframeforwardwiththeflatendofthekeyboardmulti-tool.

Chapter9.RemovingorreplacingaFRU67

8

Tightenthescrewswiththecrossendofthekeyboardmulti-tooltosecurethekeyboardinplace.

9

Slidethekeyboardframebackwardby2.5mm(0.1inch)withtheflatendofthekeyboardmulti-tooltohide
thelatchesofthekeyboardframeunderthekeyboardbezel.

Note:Donotpressandholdthekeyswhileslidingthekeyboardframe.Otherwise,thekeyboardframe
cannotbemoved.

68ThinkPadL460HardwareMaintenanceManual

10

10

Inserttheflatendofthekeyboardmulti-toolintothegapsbetweenthekeyboardframeandthekeystopush
thekeyboardframebackward.Ensurethatthereisnogapbetweenthekeyboardframeandkeyboardbezel.

Note:Donotpressandholdthekeyswhileslidingthekeyboardframe.Otherwise,thekeyboardframe
cannotbemoved.

11

Chapter9.RemovingorreplacingaFRU69

Installthekeyboardrubbers.

12

1050Basecoverassembly

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

Note:Dependingonthecomputermodel,yourcomputermightlookdifferentfromtheillustrationsin
thistopic.

Removalstepsofthebasecoverassembly

Note:Loosenthescrews1.Thescrews1cannotberemoved.

2

2

2

2

2

2

2

2

2

2

2

2

2

2

1

3

70ThinkPadL460HardwareMaintenanceManual

Applyinglabelstothebasecoverassembly:

Thenewbasecoverassemblyisshippedwithakitcontaininglabelsofseveralkinds.Applythoselabels
whenyoureplacethebasecoverassembly.Forthelabelsthatarenotshippedwiththenewbasecover
assembly,peelthemfromtheoldbasecoverassembly,andadherethemtothenewone.

Thefollowingillustrationshowsthelocationofeachlabel.

Chapter9.RemovingorreplacingaFRU71

1

9

13

12

14

15

16

17

18

19

10

11

20

2 3 4 5 6 7 8

222324 21

32

31

30

29

28

27

26

25

1Assettag

2Systemlabel

3Informationlabel

4WWANMAClabel

5FCClabel6S/Nlabel

7GEOlabel8Taiwan/KoreaWWANlabel

9Wirelesslabelforspecialbid

10IMEIlabel

11CECPlabel12GenuineMicrosoft(GM)label

13Certificateofauthenticity(COA)label14IndiaBISlabel

15KCClabel

16KRsafetylabel

17Indonesiaratinglabel18Non-encryptionlabel

19ChinaGEOlabel20GEOUSlabel

21WWANlabel

22ArgentinaCNClabel

23IndonesiaPOSTELlabel24SLPlabel

25IsraelHomo(WL/BT/3G)label26ChinaWWANlabel

27China3GWWANlabel28China3GLOGOWWANlabel

29BrazilAnatel(WL/BT/3G)label30ChinaTELCOMlabel

31ICASAlabel

32WLANlabel

1060Dockingbracketordockingdummydoor

Foraccess,removetheseFRUsinorder:

72ThinkPadL460HardwareMaintenanceManual

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

Removalstepsofthedockingbracket

1

1

1

StepScrew(quantity)Color

Torque

1

M2×5mm,flat-head,nylon-coated(3)

Black0.181Nm

(1.85kgf-cm)

2

3

Removalstepsofthedockingdummydoor

Wheninstalling:

Ensurethatthedockingdummydoorisfirmlyattached.

Chapter9.RemovingorreplacingaFRU73

1070SIM-carddummycover

Foraccess,removetheseFRUsinorder:

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

RemovalstepsoftheSIM-carddummycover

1080Harddiskdriveorsolid-statedrive

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

Attention:

•Donotdropthedriveorapplyanyphysicalshocktoit.Thedriveissensitivetophysicalshock.Improper
handlingcancausedamageandpermanentlossofdata.

•Beforeremovingthedrive,havetheusermakeabackupcopyofalltheinformationonitifpossible.

•Neverremovethedrivewhilethesystemisoperatingorinsuspendmode.

74ThinkPadL460HardwareMaintenanceManual

Removalstepsoftheharddiskdriveorsolid-statedrive

1

StepScrew(quantity)Color

Torque

1

M2×3mm,flat-head,nylon-coated(1)

Black0.181Nm

(1.85kgf-cm)

2

Wheninstalling:

Ensurethattheharddiskdriveorsolid-statedriveisfirmlyattached.

1090Wireless-LANcard

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

Chapter9.RemovingorreplacingaFRU75

•“1050Basecoverassembly”onpage70

RemovalstepsoftheWireless-LANcard

1

76ThinkPadL460HardwareMaintenanceManual

2

3

StepScrew(quantity)Color

Torque

3

M2×3mm,flat-head,nylon-coated(1)

Black0.181Nm

(1.85kgf-cm)

Chapter9.RemovingorreplacingaFRU77

4

Wheninstalling:

PlugthegraycableintotheconnectorlabeledMainonthecard,andplugtheblackcableintotheconnector
labeledAuxonthecard.

1100Wireless-WANcard

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

78ThinkPadL460HardwareMaintenanceManual

Removalstepsofthewireless-WANcard

1

Chapter9.RemovingorreplacingaFRU79

2

2

3

StepScrew(quantity)Color

Torque

3

M2×3mm,flat-head,nylon-coated(1)

Black0.181Nm

(1.85kgf-cm)

80ThinkPadL460HardwareMaintenanceManual

4

Wheninstalling:

PlugtheorangecableintotheconnectorlabeledMAINonthecard,andplugthebluecableintothe
connectorlabeledAUXonthecard.

1110Memorymodule

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

Chapter9.RemovingorreplacingaFRU81

Removalstepsofthememorymodule

1

3

2

2

Wheninstalling:

Insertthenotchedendofthememorymoduleintothememoryslot.Pressthememorymoduleinfirmly,
andpivotitdownwarduntilitsnapsintoplace.Ensurethatthememorymoduleisfirmlyinstalledinthe
slotanddoesnotmoveeasily.

1120Speakerassembly

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

82ThinkPadL460HardwareMaintenanceManual

•“1050Basecoverassembly”onpage70

Removalstepsofthespeakerassembly

1

2

2

2

2

4

4

4

3

3

3

3

StepScrew(quantity)Color

Torque

3

M2×4mm,bighead,nylon-coated(4)

Black0.181Nm

(1.85kgf-cm)

Wheninstalling:

•Ensurethatthespeakerrubbersarewellinstalled.

•Ensurethattheconnectorofthespeakerassemblyisattachedfirmly.

•Routethecablesasshowninthefollowingillustration.

Attention:Asyouroutethecables,ensurethattheyarenotsubjecttoanytension.Tensioncouldcause
thecablestobedamagedbythecableguides,orawiretobebroken.

Chapter9.RemovingorreplacingaFRU83

1130Coin-cellbattery

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

DANGER

Useonlytheauthorizedbatteryspecifiedforyourcomputer.Anyotherbatterycouldigniteor
explode.

Removalstepsofthecoin-cellbattery

1

2

Wheninstalling:

Ensurethattheconnectorofthecoin-cellbatteryisattachedfirmly.

1140LCDunit

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

84ThinkPadL460HardwareMaintenanceManual

RemovalstepsoftheLCDunit

3

2

1

4

5

6

6

6 6

6

6

6

8

8

7

7

7

7

StepScrew(quantity)Color

Torque

7

M2.5×6mm,flat-head,nylon-coated(4)

Black0.294Nm

(3.0kgf-cm)

8

M2×5mm,flat-head,nylon-coated(2)Silver

0.181Nm
(1.85kgf-cm)

Chapter9.RemovingorreplacingaFRU85

9

10

10

Wheninstalling:

•Ensurethattheconnectorsareattachedfirmly.

•Ensurethatthecablesarenotsubjecttoanytension.T ensioncouldcausethecablestobedamagedby
thecableguides,orawiretobebroken.

1150dc-incable

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

86ThinkPadL460HardwareMaintenanceManual

Removalstepsofthedc-incable

2

1

1

StepScrew(quantity)Color

Torque

1

M2.5×6mm,flat-head,nylon-coated(2)

Black0.294Nm

(3.0kgf-cm)

2

M2×5mm,flat-head,nylon-coated(1)Silver

0.181Nm
(1.85kgf-cm)

3

4

5

Chapter9.RemovingorreplacingaFRU87

6

6

Wheninstalling:

Ensurethattheconnectorofthedc-incableisattachedfirmly.

1160Thermalfanassembly

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

Removalstepsofthethermalfanassembly

Notes:

•Loosenthescrews

3inascendingalphabeticalorderasillustrated.Thescrews3cannotberemoved.

•Thescrews3e,3f,and3gareavailableonlyonsomecomputermodels.

1

3d

3a

3c

3e

3b

3f

3g

2

88ThinkPadL460HardwareMaintenanceManual

4

Wheninstalling:

•Ensurethattheconnectorofthethermalfanisattachedfirmly.

•Beforeyouattachthethermalfanassemblytothecomputer,applythermalgrease,atanamountof0.2
grams,onthepartsmarked

aandbasshowninthefollowingillustrations.Eithertoomuchortooless

applicationofgreasecancauseathermalproblemduetoimperfectcontactwithacomponent.Forthe
newthermalfanassembly,youmustpeelthethinfilmofffromtherubbers.

Forintegrated-graphicsmodels

a

Fordiscrete-graphicsmodels

a

b

1170I/Obracket

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

Chapter9.RemovingorreplacingaFRU89

RemovalstepsoftheI/Obracket

2

1

2

1

2

StepScrew(quantity)Color

Torque

1

M2.5×6mm,flat-head,nylon-coated(2)

Black0.294Nm

(3.0kgf-cm)

2

M2×5mm,flat-head,nylon-coated(3)Silver

0.181Nm
(1.85kgf-cm)

3

Usethehexbitsockettoremovethehexagonalscrews.

90ThinkPadL460HardwareMaintenanceManual

4

StepScrew(quantity)Color

Torque

4

Hexagonalscrews(2)Silver

0.181Nm
(1.85kgf-cm)

5

Wheninstalling:

EnsurethattheI/Obracketisattachedfirmly.

1180Smart-cardbracket

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

•“1130Coin-cellbattery”onpage84

•“1120Speakerassembly”onpage82

Chapter9.RemovingorreplacingaFRU91

Removalstepsofthesmart-cardbracket

1

1

1

1

2

StepScrew(quantity)Color

Torque

1

M2×3mm,flat-head,nylon-coated(4)

Black0.181Nm

(1.85kgf-cm)

2

M2×5mm,flat-head,nylon-coated(1)Silver

0.181Nm
(1.85kgf-cm)

3

1190Systemboardandsubcards

Importantnoticesforhandlingthesystemboard

Whenhandlingthesystemboard,readthefollowing:

•Thesystemboardhasanaccelerometer,whichcanbebrokenwhenseveralthousandsofG-forces
areapplied.

Note:Droppingasystemboardfromaheightofaslittleas6inchessothatitfallsflatonahardbench
cansubjecttheaccelerometertoasmuchas6000G'sofshock.

•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,or
composite.

•Avoidroughhandlingofanykind.

•Ateverypointintheprocess,besurenottodroporstackthesystemboard.

•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatora
corrugatedconductivematerial.

Foraccess,removetheseFRUsinorder:

•“1010SIM-cardtray”onpage62

92ThinkPadL460HardwareMaintenanceManual

•“1020Externalbatterypack”onpage62

•“1030Keyboardrubbers”onpage63

•“1050Basecoverassembly”onpage70

•“1080Harddiskdriveorsolid-statedrive”onpage74

•“1090Wireless-LANcard”onpage75

•“1100Wireless-WANcard”onpage78

•“1110Memorymodule”onpage81

•“1130Coin-cellbattery”onpage84

•“1180Smart-cardbracket”onpage91

•“1160Thermalfanassembly”onpage88

•“1170I/Obracket”onpage89

Attention:Thefollowingcomponentssolderedonthetopsideofthesystemboardareextremelysensitive.
Whenyouservicethesystemboard,avoidanykindofroughhandling.

Formodelswithadiscretethermalmodule

aMicroprocessor
bGraphicsProcessingUnit(GPU)

a

b

Formodelswithanintegratedthermalmodule

aMicroprocessor

a

Chapter9.RemovingorreplacingaFRU93

Removalstepsofthesystemboard

6

5

2

1

11

3

4

7

7

7

7

StepScrew(quantity)Color

Torque

7

M2×3mm,bighead,nylon-coated(4)

Black0.181Nm

(1.85kgf-cm)

8

94ThinkPadL460HardwareMaintenanceManual