Lenovo T520i, T520, W520 User Manual

ThinkPadT520,T520i,andW520
HardwareMaintenanceManual

ThinkPadT520,T520i,andW520
HardwareMaintenanceManual

Note

Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformationunder
AppendixA“Notices”onpage165

.

SecondEdition(March2011)

©CopyrightLenovo2011.

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

Contents

Aboutthismanual............v

Chapter1.Safetyinformation.....1

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

Electricalsafety...............2

Safetyinspectionguide............3

Handlingdevicesthataresensitivetoelectrostatic

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

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

Safetynotices(multilingualtranslations)......4

Lasercompliancestatement(multilingual

translations)................17

Chapter2.Importantservice

information..............23

StrategyforreplacingFRUs.........23

Strategyforreplacingaharddiskdrive...24
Importantnoticeforreplacingasystem

board................24

Howtouseerrormessage........24

StrategyforreplacingFRUsforCTO,CMV,and

GAV...................24

Productdenition............24

FRUidenticationforCTO,CMV ,andGAV

products...............25

Powermanagement............38

Screenblankmode...........38

Sleep(standby)mode..........38

Hibernationmode...........39

Symptom-to-FRUindex...........39

Numericerrorcodes..........40

Errormessages............41

Beepsymptoms............42

No-beepsymptoms...........43

LCD-relatedsymptoms.........43

Intermittentproblems..........43

Undeterminedproblems.........44

Chapter5.Installingandconguring

RAID..................45

SupportedRAIDcongurations........45

ConguringthesystemUEFIBIOStoenable

embeddedSATARAIDfunctionality......45

CreatingRAIDvolumes...........45

DeletingRAIDvolumes...........46

Chapter6.Statusindicators.....47

Chapter7.Fnkeycombinations...51

Chapter3.Generalcheckout.....27

Whattodorst..............27

Checkoutguide..............28

DiagnosticsusingPC-DoctorforDOS....28

LenovoThinkVantageT oolbox.......30

FRUtests...............31

Powersystemcheckout...........32

Checkingtheacadapter.........33

Checkingoperationalcharging......33

Checkingthebatterypack........33

Checkingthebackupbattery.......34

Chapter4.Relatedservice

information..............35

RestoringthefactorycontentsbyusingRecovery

DiscSet.................35

Passwords................36

Power-onpassword...........36

Hard-diskpassword...........36

Supervisorpassword..........37

Howtoremovethepower-onpassword...37
Howtoremovethehard-diskpassword...37

Chapter8.FRUreplacement

notices................55

Screwnotices...............55

Retainingserialnumbers...........56

Restoringtheserialnumberofthesystem

unit.................56

RetainingtheUUID...........56

ReadingorwritingtheECAinformation...57

Chapter9.Removingandreplacinga

FRU..................59

BeforeservicingThinkPadT520,T520i,and

W520..................60

1010Batterypack.............60

1020SerialUltrabayEnhanceddeviceortravel

bezel..................61

1030DIMMslotcover............62

1040DIMM(bottomslot)...........63

1050Harddiskdriveslotcover,harddiskdrive
(HDD)andHDDrubberrailsorsolidstatedrive

(SSD)andstorageconverter.........65

1060Keyboard..............67

1070DIMM(upperslot)...........70

1080PCIExpressMiniCardforwirelessLAN..71

©CopyrightLenovo2011

iii

1090PCIExpressMiniCardforwirelessWAN..73

1100Keyboardbezelassembly........75

1110Bluetoothdaughtercard(BDC-3.0)....77

1120Backupbattery............78

1130SmartCardorSmartCarddummyspacer.79

1140Speakerassembly...........81

1150Thermalmodule............83

1160CPU................85

1170LCDunit...............86

1180Basecoverassembly..........89

1190I/Osubcard.............91

1200Systemboardassembly,magnesium
structureframe,andmodemdaughtercard

(MDC)..................92

2010LCDbezelassembly..........96

2020LEDsubcard.............97

2030Integratedcamera...........98

2040LCDcable,cameracable,LCDpanel,and

hinges..................98

2050AntennakitandLCDrearcoverassembly..101

Chapter10.Locations.......103

Frontview................103

Rearview.................104

Bottomview...............105

Chapter11.Partslist........107

Overall..................108

LCDFRUs................149

Keyboard.................156

Miscellaneousparts............157

ACadapters...............158

Powercords...............159

Recoverydiscs..............160

Windows7HomeBasic(32bit)DVDs....160

Windows7HomePremium(64bit)DVDs..161

Windows7Professional(32bit)DVDs....162

Windows7Professional(64bit)DVDs....163

Commonservicetools...........164

AppendixA.Notices........165

Electronicemissionsnotices.........166

Trademarks................166

ivThinkPadT520,T520i,andW520HardwareMaintenanceManual

Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad®products.

ThinkPadT520andT520i

MT4239,4240,4241,4242,4243,4244,and4246

ThinkPadW520

MT4249,4260,4270,4276,4281,4282,and4284

Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.

Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPad
products.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.

BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safetyinformation”
onpage1

andChapter2“Importantserviceinformation”onpage23.

©CopyrightLenovo2011

v

viThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter1.Safetyinformation

Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservice
aThinkPadNotebook.

•“Generalsafety”onpage1

•“Electricalsafety”onpage2

•“Safetyinspectionguide”onpage3

•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3

•“Groundingrequirements”onpage4

•“Safetynotices(multilingualtranslations)”onpage4

•“Lasercompliancestatement(multilingualtranslations)”onpage17

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.

©CopyrightLenovo2011

1

Electricalsafety

Observethefollowingruleswhenworkingonelectricalequipment.

Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberoormatsthatcontainsmallconductiveberstodecreaseelectrostaticdischarges.
Donotusethistypeofmattoprotectyourselffromelectricalshock.

•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

metaloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;Instructionsforthese
precautionsareinthesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuring
highvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistoors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.

•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.

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

•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.

2ThinkPadT520,T520i,andW520HardwareMaintenanceManual

–Sendanotherpersontogetmedicalaid.

Safetyinspectionguide

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

Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutrstcorrectingtheproblem.

Considertheseconditionsandthesafetyhazardstheypresent:

•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)

•Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor

•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.Thepowercordshouldbethetypespeciedinthepartslist.

c.Insulationmustnotbefrayedorworn.

4.Checkforcrackedorbulgingbatteries.

5.Removethecover.

6.Checkforanyobviousnon-ThinkPadalterations.Usegoodjudgmentastothesafetyofany
non-ThinkPadalterations.

7.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetallings,contamination,wateror
otherliquids,orsignsofreorsmokedamage.

8.Checkforworn,frayed,orpinchedcables.

9.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.

Handlingdevicesthataresensitivetoelectrostaticdischarge

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

Notes:

1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.

2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.

Chapter1.Safetyinformation3

WhenhandlingESD-sensitiveparts:

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

•Avoidcontactwithotherpeople.

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeevenwhen
youarewearingawriststrap.

•Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen
handlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecic
servicerequirement.

Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.

–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.

–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor

referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundgroundprongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.

Safetynotices(multilingualtranslations)

Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•BrazilianPortuguese

•French

•German

•Hebrew

•Japanese

•Korean

•Spanish

•TraditionalChinese

DANGER

BeforethecomputerispoweredonafterFRUreplacement,makesureallscrews,springs,andothersmall
partsareinplaceandarenotleftlooseinsidethecomputer.Verifythisbyshakingthecomputerandlistening
forrattlingsounds.Metallicpartsormetalakescancauseelectricalshorts.

4ThinkPadT520,T520i,andW520HardwareMaintenanceManual

DANGER

Somestandbybatteriescontainasmallamountofnickelandcadmium.Donotdisassembleastandbybattery,
rechargeit,throwitintoreorwater ,orshort-circuitit.Disposeofthebatteryasrequiredbylocalordinances
orregulations.Useonlythebatteryintheappropriatepartslisting.Useofanincorrectbatterycanresult
inignitionorexplosionofthebattery.

DANGER

Thebatterypackcontainssmallamountsofnickel.Donotdisassembleit,throwitintoreorwater,or
short-circuitit.Disposeofthebatterypackasrequiredbylocalordinancesorregulations.Useonlythe
batteryintheappropriatepartslistingwhenreplacingthebatterypack.Useofanincorrectbatterycanresult
inignitionorexplosionofthebattery.

DANGER

Thelithiumbatterycancauseare,anexplosion,orasevereburn.Donotrechargeit,removeitspolarized
connector,disassembleit,heatitabove100°C(212°F),incinerateit,orexposeitscellcontentstowater.
Disposeofthebatteryasrequiredbylocalordinancesorregulations.Useonlythebatteryintheappropriate
partslisting.Useofanincorrectbatterycanresultinignitionorexplosionofthebattery.

DANGER

IftheLCDbreaksandtheuidfrominsidetheLCDgetsintoyoureyesoronyourhands,immediatelywash
theaffectedareaswithwaterforatleast15minutes.Seekmedicalcareifanysymptomsfromtheuidare
presentafterwashing.

DANGER

Toavoidshock,donotremovetheplasticcoverthatprotectsthelowerpartoftheinvertercard.

DANGER

Thoughthemainbatterieshavelowvoltage,ashortedorgroundedbatterycanproduceenoughcurrentto
burnpersonnelorcombustiblematerials.

Chapter1.Safetyinformation5

DANGER

UnlesshotswapisallowedfortheFRUbeingreplaced,doasfollowsbeforeremovingit:poweroffthe
computer,unplugallpowercordsfromelectricaloutlets,removethebatterypack,anddisconnectany
interconnectingcables.

6ThinkPadT520,T520i,andW520HardwareMaintenanceManual

PERIGO

AntesdeligarocomputadorapósasubstituiçãodaFRU,certique-sedequetodososparafusos,molase
outraspeçaspequenasestejamnolugarenãoestejamsoltosdentrodocomputador.Veriqueissosacudindo
ocomputadoreprocurandoouvirsonsdepeçassoltas.Peçasmetálicasoulascasdemetalpodemcausar
curto-circuito.

PERIGO

Algumasbateriasreservacontêmumapequenaquantidadedeníquelecádmio.Nãodesmonteumabateria
reserva,recarregue-a,jogue-anofogoounaágua,oudeixe-aentraremcurto-circuito.Descarteabateria
conformerequeridopelasleisouregulamentoslocais.Usesomenteabaterianasparteslistadasapropriadas.
Ousodeumabateriaincorretapoderesultaremcombustãoouexplosãodabateria.

PERIGO

Opacotedabateriacontémumapequenaquantidadedeníquel.Nãoodesmonte,jogue-onofogoouna
água,oudeixe-oentraremcurto-circuito.Descarteopacotedabateriaconformerequeridopelasleisou
regulamentoslocais.Usesomenteabaterianasparteslistadasapropriadasaosubstituiropacotedabateria.
Ousodeumabateriaincorretapoderesultaremcombustãoouexplosãodabateria.

PERIGO

Chapter1.Safetyinformation7

Abateriadelítiopodecausarincêndio,explosãoougravesqueimaduras.Nãoarecarregue,removaseu
conectorpolarizado,desmonte-a,aqueça-aacimade100°C(212°F),incinere-a,ouexponhaoconteúdode
suacélulaàágua.Descarteabateriaconformerequeridopelasleisouregulamentoslocais.Usesomente
abaterianasparteslistadasapropriadas.Ousodeumabateriaincorretapoderesultaremcombustão
ouexplosãodabateria.

PERIGO

SeoLCDquebrareouidodedentrodeleentraremcontatocomseusolhosoucomsuasmãos,laveas
áreasafetadasimediatamentecomáguadurantepelomenos15minutos.Procurecuidadosmédicossealgum
sintomacausadopelouidosurgirapósalavagem.

PERIGO

Paraevitarchoqueelétrico,nãoremovaacapaplásticaqueprotegeaparteinferiordaplacainversora.

PERIGO

Emboraasprincipaisbateriaspossuambaixavoltagem,umabateriaemcurto-circuitoouaterradapode
produzircorrenteobastanteparaqueimarmateriaisdepessoalouinamáveis.

PERIGO

AmenosqueumahotswapsejapermitidaparaaFRUqueestásendosubstituída,façaoseguinteantesde
removê-la:desligueocomputador,desconectetodososcabosdeenergiadastomadas,removaopacotede
bateriasedesconectequaisquercabosdeinterconexão.

DANGER

Avantderemettrel'ordinateursoustensionaprèsremplacementd'uneunitéenclientèle,vériezquetousles
ressorts,visetautrespiècessontbienenplaceetbienxées.Pourcefaire,secouezl'unitéetassurez-vous
qu'aucunbruitsuspectneseproduit.Despiècesmétalliquesoudescopeauxdemétalpourraientcauser
uncourt-circuit.

DANGER

8ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Certainesbatteriesdesecourscontiennentdunickeletducadmium.Nelesdémontezpas,nelesrechargez
pas,nelesexposezniaufeuniàl'eau.Nelesmettezpasencourt-circuit.Pourlesmettreaurebut,
conformez-vousàlaréglementationenvigueur.Lorsquevousremplacezlapiledesauvegardeoucellede
l'horlogetempsréel,veillezàn'utiliserquelesmodèlescitésdanslalistedepiècesdétachéesadéquate.Une
batterieouunepileinappropriéerisquedeprendrefeuoud'exploser.

DANGER

Labatteriecontientdunickel.Neladémontezpas,nel'exposezniaufeuniàl'eau.Nelamettezpasen
court-circuit.Pourlamettreaurebut,conformez-vousàlaréglementationenvigueur .Lorsquevousremplacez
labatterie,veillezàn'utiliserquelesmodèlescitésdanslalistedepiècesdétachéesadéquate.Eneffet,une
batterieinappropriéerisquedeprendrefeuoud'exploser.

DANGER

Lapiledesauvegardecontientdulithium.Elleprésentedesrisquesd'incendie,d'explosionoudebrûlures
graves.Nelarechargezpas,neretirezpassonconnecteurpolariséetneladémontezpas.Nel'exposezpasà
unetemperaturesupérieureà100°C,nelafaitespasbrûleretn'enexposezpaslecontenuàl'eau.Mettezla
pileaurebutconformémentàlaréglementationenvigueur.Unepileinappropriéerisquedeprendrefeuou
d'exploser.

DANGER

Silepanneaud'afchageàcristauxliquidessebriseetquevousrecevezdanslesyeuxousurlesmainsune
partieduuide,rincez-lesabondammentpendantaumoinsquinzeminutes.Consultezunmédecinsides
symptômespersistentaprèslelavage.

DANGER

And'évitertoutrisquedechocélectrique,neretirezpaslecacheenplastiqueprotégeantlapartieinférieure
delacarted'alimentation.

DANGER

Bienquelevoltagedesbatteriesprincipalessoitpeuélevé,lecourt-circuitoulamiseàlamassed'une
batteriepeutproduiresufsammentdecourantpourbrûlerdesmatériauxcombustiblesoucauserdes
brûlurescorporellesgraves.

Chapter1.Safetyinformation9

DANGER

Sileremplacementàchaudn'estpasautorisépourl'unitéremplaçablesursitequevousremplacez,
procédezcommesuitavantderetirerl'unité:mettezl'ordinateurhorstension,débrancheztousles
cordonsd'alimentationdesprisesdecourant,retirezleblocdebatterieetdéconnecteztouslescâbles
d'interconnexion.

VORSICHT

BevornacheinemFRU-AustauschderComputerwiederangeschlossenwird,mußsichergestelltwerden,daß
keineSchrauben,FedernoderandereKleinteilefehlenoderimGehäusevergessenwurden.DerComputermuß
geschütteltundaufKlappergeräuschegeprüftwerden.Metallteileoder-splitterkönnenKurzschlüsseerzeugen.

VORSICHT

DieBereitschaftsbatterie,diesichunterdemDiskettenlaufwerkbendet,kanngeringeMengenNickel
undCadmiumenthalten.SiedarfnurdurchdieVerkaufsstelleoderdenIBMKundendienstausgetauscht
werden.Siedarfnichtzerlegt,wiederaufgeladen,kurzgeschlossen,oderFeueroderWasserausgesetzt
werden.DieBatteriekannschwereVerbrennungenoderVerätzungenverursachen.BeiderEntsorgungdie
örtlichenBestimmungenfürSondermüllbeachten.BeimErsetzenderBereitschafts-oderSystembatterienur
BatteriendesTypsverwenden,derinderErsatzteillisteaufgeführtist.DerEinsatzfalscherBatterienkann
zuEntzündungoderExplosionführen.

VORSICHT

AkkusenthaltengeringeMengenvonNickel.Siedürfennichtzerlegt,wiederaufgeladen,kurzgeschlossen,
oderFeueroderWasserausgesetztwerden.BeiderEntsorgungdieörtlichenBestimmungenfürSondermüll
beachten.BeimErsetzenderBatterienurBatteriendesT ypsverwenden,derinderErsatzteillisteaufgeführt
ist.DerEinsatzfalscherBatterienkannzuEntzündungoderExplosionführen.

VORSICHT

DieSystembatterieisteineLithiumbatterie.Siekannsichentzünden,explodierenoderschwereVerbrennungen
hervorrufen.BatteriendiesesTypsdürfennichtaufgeladen,zerlegt,über100°Cerhitztoderverbranntwerden.
AuchdarfihrInhaltnichtmitWasserinVerbindunggebrachtoderderzurrichtigenPolungangebrachte
Verbindungssteckerentferntwerden.BeiderEntsorgungdieörtlichenBestimmungenfürSondermüll
beachten.BeimErsetzenderBatterienurBatteriendesT ypsverwenden,derinderErsatzteillisteaufgeführt
ist.DerEinsatzfalscherBatterienkannzuEntzündungoderExplosionführen.

10ThinkPadT520,T520i,andW520HardwareMaintenanceManual

VORSICHT

DieLeuchtstoffröhreimLCD-BildschirmenthältQuecksilber.BeiderEntsorgungdieörtlichenBestimmungen
fürSondermüllbeachten.DerLCD-BildschirmbestehtausGlasundkannzerbrechen,wennerunsachgemäß
behandeltwirdoderderComputeraufdenBodenfällt.WennderBildschirmbeschädigtistunddiedarin
bendlicheFlüssigkeitinKontaktmitHautundAugengerät,solltendiebetroffenenStellenmindestens15
MinutenmitWasserabgespültundbeiBeschwerdenanschließendeinArztaufgesuchtwerden.

VORSICHT

AusSicherheitsgründendieKunststoffabdeckung,diedenunterenT eilderSpannungswandlerplatineumgibt,
nichtentfernen.

VORSICHT

ObwohlHauptbatterieneineniedrigeSpannunghaben,könnensiedochbeiKurzschlußoderErdunggenug
Stromabgeben,umbrennbareMaterialienzuentzündenoderVerletzungenbeiPersonenhervorzurufen.

VORSICHT

WenneinAustauschderFRUbeilaufendemBetriebnichterlaubtist,gehenSiebeimAustauschderFRUwie
folgtvor:SchaltenSiedenComputeraus,ziehenSiealleNetzkabelvondenNetzsteckdosenab,entfernen
SiedenAkkuundziehenSieallemiteinanderverbundenenKabelab.

Chapter1.Safetyinformation11

12ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter1.Safetyinformation13

14ThinkPadT520,T520i,andW520HardwareMaintenanceManual

AntesdeencenderelsistemadespuesdesustituirunaFRU,compruebequetodoslostornillos,muellesy
demáspiezaspequeñasseencuentranensusitioynoseencuentransueltasdentrodelsistema.Compruébelo
agitandoelsistemayescuchandolosposiblesruidosqueprovocarían.Laspiezasmetálicaspuedencausar
cortocircuitoseléctricos.

Algunasbateríasdereservacontienenunapequeñacantidaddeníquelycadmio.Nolasdesmonte,ni
recargue,nilasechealfuegooalaguanilascortocircuite.Deséchelastalcomodisponelanormativalocal.
Utilicesólobateríasqueseencuentrenenlalistadepiezas.Lautilizacióndeunabateríanoapropiada
puedeprovocarlaigniciónoexplosióndelamisma.

Lasbateríascontienenpequeñascantidadesdeníquel.Nolasdesmonte,nirecargue,nilasechealfuego
oalaguanilascortocircuite.Deséchelastalcomodisponelanormativalocal.Utilicesólobateríasquese
encuentrenenlalistadepiezasalsustituirlabatería.Lautilizacióndeunabateríanoapropiadapuede
provocarlaigniciónoexplosióndelamisma.

Labateríaderepuestoesunabateríadelitioypuedeprovocarincendios,explosionesoquemadurasgraves.
Nolarecargue,niquiteelconectorpolarizado,niladesmonte,nicalienteporencimadelos100°C(212°F),ni
laincinereniexpongaelcontenidodesusceldasalagua.Deséchelatalcomodisponelanormativalocal.

SilaLCDserompeyeluidodesuinteriorentraencontactoconsusojososusmanos,laveinmediatamente
lasáreasafectadasconaguadurante15minutoscomomínimo.Obtengaatenciónmedicasisepresenta
algúnsíntomadeluidodespuesdelavarse.

Paraevitardescargas,noquitelacubiertadeplásticoquerodealapartebajadelatarjetainvertida.

Aunquelasbateríasprincipalestienenunvoltajebajo,unabateríacortocircuitadaoconcontactoatierra
puedeproducirlacorrientesucientecomoparaquemarmaterialcombustibleoprovocarquemadurasen
elpersonal.

Chapter1.Safetyinformation15

Salvoquesepermitaelintercambioencalienteparalaunidadsustituiblelocalmente,realicelosiguienteantes
deextraerla:apagueelsistema,desconectetodosloscablesdealimentacióndelastomasdealimentación
eléctrica,extraigalabateríaydesconecteloscablesdeinterconexión.

16ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Lasercompliancestatement(multilingualtranslations)

Thelasercompliancestatementsinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•BrazilianPortuguese

•French

•German

•Hebrew

•Japanese

•Korean

•Spanish

•TraditionalChinese

Chapter1.Safetyinformation17

18ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter1.Safetyinformation19

20ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter1.Safetyinformation21

22ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter2.Importantserviceinformation

Thischapterpresentsfollowingimportantserviceinformationthatappliestoallmachinetypessupportedby
thismanual:

•“StrategyforreplacingFRUs”onpage23
–“Strategyforreplacingaharddiskdrive”onpage24
–“Importantnoticeforreplacingasystemboard”onpage24
–“Howtouseerrormessage”onpage24

•“StrategyforreplacingFRUsforCTO,CMV,andGAV”onpage24
–“Productdenition”onpage24
–“FRUidenticationforCTO,CMV,andGAVproducts”onpage25

Important:AdvisecustomerstocontacttheLenovoCustomerSupportCenteriftheyneedanyassistance
inobtainingorinstallinganysoftwarexes,drivers,andUEFIBIOSdownloads.T elephonenumbersfor
LenovoSupportareavailableat:
http://www.lenovo.com/support/phone

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

AdvisecustomerstocontacttheCustomerSupportCenterat800-426-7378iftheyneedassistancein
obtainingorinstallinganysoftwarexes,drivers,andUEFIBIOSdownloads.

CustomersinCanadashouldcalltheCustomerSupportCenterat800-565-3344forassistanceordownload
information.

StrategyforreplacingFRUs

Beforereplacingparts:

Makesurethatallsoftwarexes,drivers,andUEFIBIOSdownloadsareinstalledbeforereplacingany
FRUslistedinthismanual.

Afterasystemboardisreplaced,ensurethatthelatestUEFIBIOSisloadedtothesystemboardbefore
completingtheserviceaction.

Todownloadsoftwarexes,drivers,andUEFIBIOS,doasfollows:

1.Gotohttp://www.lenovo.com/support.

2.EntertheproductnumberofthecomputerorpressAuto-detectbuttononthescreen.

3.SelectDownloadsanddrivers.

4.Followthedirectionsonthescreenandinstallthenecessarysoftware.

UsethefollowingstrategytopreventunnecessaryexpenseforreplacingandservicingFRUs:

•IfyouareinstructedtoreplaceaFRUbutthereplacementdoesnotcorrecttheproblem,reinstall
theoriginalFRUbeforeyoucontinue.

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

©CopyrightLenovo2011

23

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

Attention:Thesetupcongurationonthecomputeryouareservicingmayhavebeencustomized.Running
AutomaticCongurationmayalterthesettings.Notethecurrentcongurationsettings(usingtheView
Congurationoption);then,whenservicehasbeencompleted,verifythatthosesettingsremainineffect.

Strategyforreplacingaharddiskdrive

Alwaystrytorunalow-levelformatbeforereplacingaharddiskdrive.Thiswillcauseallcustomerdataon
theharddisktobelost.Besurethatthecustomerhasacurrentbackupofthedatabeforedoingthistask.

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

Importantnoticeforreplacingasystemboard

Somecomponentsmountedonasystemboardareverysensitive.Improperhandlingofasystemboardcan
causedamagetothosecomponents,andmaycauseasystemmalfunction.

Attention:Whenhandlingasystemboard:

•Donotdropasystemboardorapplyanyexcessiveforcetoit.

•Avoidroughhandlingofanykind.

•AvoidbendingasystemboardandhardpushingtopreventcrackingateachBGA(BallGridArray)chipset.

Howtouseerrormessage

Usetheerrorcodesdisplayedonthescreentodiagnosefailures.Ifmorethanoneerrorcodeisdisplayed,
beginthediagnosiswiththersterrorcode.Whatevercausesthersterrorcodemayalsocausefalseerror
codes.Ifnoerrorcodeisdisplayed,seewhethertheerrorsymptomislistedintheSymptom-to-FRU
Indexforthecomputeryouareservicing.

StrategyforreplacingFRUsforCTO,CMV,andGAV

Productdenition

DynamicCongureToOrder(CTO)

ThisprovidestheabilityforacustomertocongureaLenovosolutionfromaneSite,andhavethis
congurationsenttofulllment,whereitisbuiltandshippeddirectlytothecustomer.Themachinelabel,
ProductEntitlementWarehouse(PEW),eSupport,andtheHMMwillloadtheseproductsasthe4-digitMT
and3-digitmodel,wheremodel=“CTO”(Example:1829-CTO).

CustomModelVariant(CMV)

ThisisauniquecongurationthathasbeennegotiatedbetweenLenovoandthecustomer.Aunique4-digit
MTand3-digitmodelisprovidedtothecustomertoplaceorders(Example:1829-W15).ACMVisaspecial
bidoffering.Therefore,itisNOTgenerallyannounced.

•TheMTMportionofthemachinelabelisthe4-digitMTand3-digitmodel,wheremodel=“CTO”
(Example:1829-CTO).ThePRODUCTIDportionofthemachinelabelisthe4-digitMTand3-digitCMV
model(Example:1829-W15).

•ThePEWrecordisthe4-digitMTand3-digitmodel,wheremodel=“CTO”(Example:1829-CTO).

24ThinkPadT520,T520i,andW520HardwareMaintenanceManual

•eSupportwillshowboththeCTOandCMVmachinetypemodels(Example:1829-CTOand1829-W15
willbefoundontheeSupportsite.)

•TheHMMwillhavethe4-digitMTand3-digitCTOmodelonly(Example:1829-CTO).Again,CMVsare
custommodelsandarenotfoundintheHMM.

GeneralAnnounceVariant(GAV)

Thisisastandardmodel(xedconguration).GAVsareannouncedandofferedtoallcustomers.TheMTM
portionofthemachinelabelisa4-digitMTand3-digitmodel,wheremodel=a“xedpartnumber”,not
“CTO”(Example:1829-F1U).Also,PEW,eSupport,andtheHMMwilllisttheseproductsunderthesame
xedmodelnumber.

FRUidenticationforCTO,CMV,andGAVproducts

TherearethreeinformationresourcestoidentifywhichFRUsareusedtosupportCTO,CMV,andGAV
products.ThesesourcesarePEW,eSupport,andtheHMM.

UsingPEW

•PEWistheprimarysourceforidentifyingFRUpartnumbersandFRUdescriptionsforthekeycommodities
forCTO,CMVandGAVproductsataMT-serialnumberlevel.Anexampleofkeycommoditiesarehard
diskdrives,systemboards,microprocessors,LiquidCrystalDisplays(LCDs),andmemory.

•Remember,allCTOandCMVproductsareloadedinPEWunderthe4-digitMTand3-digitmodel,where
model=“CTO”(Example:1829-CTO).GAVsareloadedinPEWunderthe4-digitMTand3-digitmodel,
wheremodel=a“xedpartnumber”,not“CTO”(Example:1829-F1U).

•PEWcanbeaccessedatthefollowingWebsite:
http://www.lenovo.com/support/site.wss/document.do?lndocid=LOOK-WARNTY
SelectWarrantylookup.InputtheMTandtheSerialnumberandthelistofkeycommoditieswillbe
returnedinthePEWrecordunderCOMPONENTINFORMA TION.

UsingeSupport

ForKeyCommodities(Examples-harddiskdrive,systemboard,microprocessor,LCD,andmemory)

•eSupportcanbeusedtoviewthelistofkeycommoditiesbuiltinaparticularmachineserial(thisisthe
samerecordfoundinPEW).

•eSupportcanbeaccessedatthefollowingWebsite:
http://www.lenovo.com/support

•Toviewthekeycommodities,clickonPARTSINFORMA TION,thenP ARTSLOOKUP .Typeinthemodel
typeandserialnumber.ThekeycommoditieswillbereturnedintheeSupportrecordunderPARTS
SHIPPEDWITHYOURSYSTEM.

FortheRemainingFRUs(thecompletelistofFRUsattheMTModellevel)

•eSupportcanbeusedtoviewthecompletelistofFRUsforamachinetypeandmodel.

•ToviewthecompletelistofFRUs,typeinthemachinetypeandmodel(Example:1829-CTO)under
QUICKPATH.Under“ViewbyDocumentType”selectPARTSINFORMA TION.Under“FilterbyCategory”
selectSERVICEP ARTS.Under“PartsInformationbyDate”selectSYSTEMSERVICEPARTS.Thelistof
servicepartsbydescription,withapplicablemachinetypemodelandFRUwillbedisplayed.

UsingtheHMM

ForKeyCommodities(Examples-harddiskdrive,systemboard,microprocessor,LCD,andmemory)

UsetheHMMasaback-uptoPEWandeSupporttoviewthecompletelistofFRUsattheMTModellevel.

Chapter2.Importantserviceinformation25

26ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter3.Generalcheckout

Thischapterpresentsfollowinginformation:

•“Whattodorst”onpage27

•“Checkoutguide”onpage28
–“DiagnosticsusingPC-DoctorforDOS”onpage28
–“LenovoThinkVantageT oolbox”onpage30
–“FRUtests”onpage31

•“Powersystemcheckout”onpage32

ThedescriptionsinthischapterapplytoanyThinkPadmodelthatsupportsthePC-Doctor®forDOS
diagnosticsprogram.Somedescriptionsmightnotapplytoyourparticularcomputer.

Beforeyougotothecheckoutguide,besuretoreadthefollowingimportantnotes.

Important:

•Onlycertiedtrainedpersonnelshouldservicethecomputer.

•BeforereplacinganyFRU,readtheentirepageonremovingandreplacingFRUs.

•WhenyoureplaceFRUs,usenewnylon-coatedscrews.

•Beextremelycarefulduringsuchwriteoperationsascopying,saving,orformatting.Drivesinthe
computerthatyouareservicingsequencemighthavebeenaltered.Ifyouselectanincorrectdrive,
dataorprogramsmightbeoverwritten.

•ReplaceaFRUonlywithanotherFRUofthecorrectmodel.WhenyoureplaceaFRU,makesurethat
themodelofthemachineandtheFRUpartnumberarecorrectbyreferringtotheFRUpartslist.

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

•BecarefulnottoreplaceanondefectiveFRU.

Whattodorst

WhenyoudoreturnaFRU,youmustincludethefollowinginformationinthepartsexchangeformor
partsreturnformthatyouattachtoit:

•Nameandphonenumberofservicetechnician

•Dateofservice

•Dateonwhichthemachinefailed

•Dateofpurchase

•Failuresymptoms,errorcodesappearingonthedisplay,andbeepsymptoms

•ProcedureindexandpagenumberinwhichthefailingFRUwasdetected

•FailingFRUnameandpartnumber

•Machinetype,modelnumber,andserialnumber

•Customer'snameandaddress

Noteforwarranty:Duringthewarrantyperiod,thecustomermayberesponsibleforrepaircostsifthe
computerdamagewascausedbymisuse,accident,modication,unsuitablephysicaloroperating
environment,orimpropermaintenancebythecustomer.Followingisalistofsomecommonitemsthat
arenotcoveredunderwarrantyandsomesymptomsthatmightindicatethatthesystemwassubjected
tostressbeyondnormaluse.

©CopyrightLenovo2011

27

Beforecheckingproblemswiththecomputer,determinewhetherthedamageiscoveredunderthewarranty
byreferringtothefollowinglist:

Thefollowingarenotcoveredunderwarranty:

•LCDpanelcrackedfromtheapplicationofexcessiveforceorfrombeingdropped

•Scratched(cosmetic)parts

•Distortion,deformation,ordiscolorationofthecosmeticparts

•Plasticparts,latches,pins,orconnectorsthathavebeencrackedorbrokenbyexcessiveforce

•Damagecausedbyliquidspilledintothesystem

•DamagecausedbytheimproperinsertionofaPCCardortheinstallationofanincompatiblecard

•Improperdiscinsertionoruseofanopticaldrive

•Diskettedrivedamagecausedbypressureonthediskettedrivecover,foreignmaterialinthedrive,
ortheinsertionofadiskettewithmultiplelabels

•Damagedorbentdisketteejectbutton

•Fusesblownbyattachmentofanonsupporteddevice

•Forgottencomputerpassword(makingthecomputerunusable)

•Stickykeyscausedbyspillingaliquidontothekeyboard

•Useofanincorrectacadapteronlaptopproducts

Thefollowingsymptomsmightindicatedamagecausedbynonwarrantedactivities:

•Missingpartsmightbeasymptomofunauthorizedserviceormodication.

•Ifthespindleofaharddiskdrivebecomesnoisy,itmayhavebeensubjectedtoexcessiveforce,
ordropped.

Checkoutguide

UsethefollowingproceduresasaguideinidentifyingandcorrectingproblemswiththeThinkPadNotebook.

Note:ThediagnostictestsareintendedtotestonlyThinkPadproducts.Theuseofnon- ThinkPadproducts,
prototypecards,ormodiedoptionscanleadtofalseindicationsoferrorsandinvalidsystemresponses.

1.Identifythefailingsymptomsinasmuchdetailaspossible.

2.Verifythesymptoms.Trytore-createthefailurebyrunningthediagnostictestorbyrepeatingthe
operation.

DiagnosticsusingPC-DoctorforDOS

TheThinkPadNotebookhasatestprogramcalledPC-DoctorforDOS(hereaftercalledPC-Doctor.)Y oucan
detecterrorsbyrunningthediagnosticstestincludedinPC-Doctor.

Note:PC-DoctorforDOSisavailableatthefollowingWebsite:http://www.lenovo.com/support

TocreatethePC-DoctordiagnosticCD,followtheinstructionsontheWebsite.

Forsomepossiblecongurationsofthecomputer,PC-Doctormightnotruncorrectly.Toavoidthisproblem,
youneedtoinitializethecomputersetupbyuseoftheThinkPadSetupbeforeyourunPC-Doctor.

ToenterThinkPadSetup,doasfollows:

1.T urnonthecomputer.

2.WhentheThinkPadlogocomesup,immediatelypressF1toentertheThinkPadSetup.

Note:Ifasupervisorpasswordhasbeensetbythecustomer,ThinkPadSetupmenuappearsafterthe
passwordisentered.Y oucanstartThinkPadSetupbypressingEnterinsteadofenteringthesupervisor
password;however,youcannotchangetheparametersthatareprotectedbythesupervisorpassword.

28ThinkPadT520,T520i,andW520HardwareMaintenanceManual

OntheThinkPadSetupscreen,pressF9,Enter,F10,andthenEnter.

Diagnostics

Run Normal Test
Run Quick Test
CPU/Coprocessor

Systemboard

System Memory

Video Adapter
Fixed Disks
Diskette Drives
Other Devices
Communication

Interactive Tests Hardware Info Utility Quit F1=Help

PC-DOCTOR 2.0 Copyright 2008 PC-Doctor, Inc. All Rights Reserved.

Use the cursor keys and ESC to move in menus. Press ENTER to select.

Wireless LAN

Note:Whenyouinitializethecomputerconguration,somedevicesaredisabled,suchastheserialport.If
youtestoneofthesedevices,youwillneedtoenableitbyusingCongurationutilityforDOS.Theutilityis
availableonthefollowingWebsite:http://www.lenovo.com/support

PC-Doctorcannotbeusedtotestadevicethatisinthedockingstation,evenifthecomputersupportsthe
dockingstation.TotestaUSBdevice,connectittotheUSBconnectorofthecomputer.

Testingthecomputer

Note:ThePC-DoctordiagnosticCDdoesnotsupportanyopticaldrivesconnectedthroughUSBdevicesor

anyothers.ItsupportsonlytheinternalopticaldriveoftheThinkPadNotebook.

Torunthetest,doasfollows:

1.T urnoffthecomputer.

2.Makesurethattheinternalopticaldrivethatissupportedasastartupdeviceisattachedtothecomputer.

3.T urnonthecomputer.Ifthecomputercannotbepoweredon,goto“Powersystemcheckout”on
page32,andcheckthepowersources.

Ifanerrorcodeappears,goto“Symptom-to-FRUindex”onpage39.

4.WhentheThinkPadlogocomesup,immediatelypressF12toentertheBootMenu.

5.InsertthePC-DoctorCDintotheinternalopticaldrive.

6.PresscursorkeystoselectA TAPICDx(x:0,1,...)andthenpressEnter.

7.Followtheinstructionsonthescreen.

8.ThemainpanelofPC-Doctorappears.

9.SelectDiagnosticswiththearrowkeys,andpressEnter.

Note:Youcanselectanitemnotonlywiththearrowkeys,butalsowiththeTrackPoint®pointer.
InsteadofpressingEnter,clicktheleftbutton.

Apull-downmenuappears.(Itsexactformdependsonthemodel.)

Note:PC-Doctormenudoesnotmeantheformalsupportdevicelist.Someunsupporteddevicenames
mayappearinthePC-Doctormenu.

Theoptionsonthetestmenuareasfollows:

Chapter3.Generalcheckout29

DiagnosticsInteractiveTests

•RunNormalT est

•RunQuickT est

•CPU/Coprocessor

•SystemMemory

•Systemboard

•VideoAdapter

•FixedDisks

•DisketteDrives

•OtherDevices

•ThinkPadDevices

•Communication

•WirelessLAN

Notes:

•IntheKeyboardtestinInteractiveT ests,theFnkeyshouldbehelddownforatleast2seconds;otherwise,it
cannotbesensed.

•VideoAdaptertestsupportsonlytheLCDdisplayontheThinkPadNotebook.Ifyouhaveanexternalmonitor
attachedtoyourcomputer ,detachitbeforerunningPC-DoctorforDOS.

•T otestDigitalSignatureChip,thesecuritychipmustbesettoActive.

•Keyboard

•Video

•InternalSpeaker

•Mouse

•Diskette

•SystemLoad

•OpticalDriveT est

•IntelWLANRadioTest

10.Runtheapplicablefunctiontest.

11.Followtheinstructionsonthescreen.Ifthereisaproblem,PC-Doctorshowsmessagesdescribingit.

12.T oexitthetest,selectQuit—ExitDiag.Tocancelthetest,pressEsc.

Note:AfterrunningPC-Doctor,checkthetimeanddateonthesystemandresetthemiftheyareincorrect.

DetectingsysteminformationwithPC-Doctor

PC-Doctorcandetectthefollowingsysteminformation:

HardwareInfo

•SystemConguration

•MemoryContents

•PhysicalDiskDrives

•VGAInformation

•A T ADriveInfo

•PCIInformation

•SMBIOSInfo

•VESALCDInfo

•HardwareEventsLog

Utility

•RunEnternalT ests

•BenchmarkSystem

•DOSShell

•T echSupportForm

•BatteryRundown

•EraseDriveContents

•ViewPCDRHostLog

LenovoThinkVantageToolbox

LenovoThinkVantage®ToolboxisadiagnosticprogramthatworksthroughtheWindowsoperatingsystem.
Itenablesyoutoviewsymptomsofcomputerproblemsandsolutionsforthem,andincludesautomatic
noticationwhenactionisrequired,computingassistance,advanceddiagnostics,anddiagnostichistory.

30ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Note:ThelatestLenovoThinkVantageT oolboxisavailableatthefollowingWebsite:

http://web.lenovothinkvantagetoolbox.com/

ToinstallthelatestLenovoThinkVantageT oolboxonthecomputer,followtheinstructionsontheWebsite.

Torunthisprogram,doasfollows:

ForWindows7:

WhiletheWindowsoperatingsystemisrunning,presstheThinkVantagebutton.

Youcanalsorunthisprogramasthefollowing:

•ClickStart➙ControlPanel➙SystemandSecurity➙Lenovo-SystemHealthandDiagnostics.

ForWindowsVistaandWindowsXP:

ClickStart➙AllPrograms➙ThinkVantage➙LenovoThinkVantageT oolbox.

Followtheinstructionsonthescreen.LenovoThinkVantageT oolboxalsohasproblemdeterminationaids
thatdeterminesoftwareandusageproblems.

Foradditionalinformationaboutthisprogram,seetheHelpfortheprogram.

FRUtests

ThefollowingtableshowsthetestforeachFRU.

Table1.FRUtests

FRUApplicabletest

Systemboard1.Diagnostics➙CPU/Coprocessor

2.Diagnostics➙Systemboard

3.IfthedockingstationortheportreplicatorisattachedtotheThinkPadNotebook,
detachit.

4.Placethecomputeronahorizontalsurface,andrunDiagnostics➙ThinkPad

Devices➙HDDActiveProtectionT est.

Note:Donotapplyanyphysicalshocktothecomputerwhilethetestisrunning.

Power

LCDunit

Audio

SpeakerInteractiveT ests➙InternalSpeaker

Keyboard

Diagnostics➙ThinkPadDevices➙ACAdapter ,Battery1,orBattery2

1.Diagnostics➙VideoAdapter

2.InteractiveTests➙Video

EntertheThinkPadSetupandchangeSerialATA(SA T A)settingtoCompatibility,and
runDiagnostics➙OtherDevice➙ConexantAudio

Note:OnceAudiotestisdone,thenosoundisheardthistest.Inthiscase,turnoff
andturnonthecomputer.Then,runthistestagain.

1.Diagnostics➙Systemboard➙Keyboard

2.InteractiveTests➙Keyboard

Chapter3.Generalcheckout31

Table1.FRUtests(continued)

FRUApplicabletest

Harddiskdriveorsolidstate
drive

Diskettedrive1.Diagnostics➙DisketteDrives

Opticaldrive1.Diagnostics➙OtherDevices➙OpticalDrive

Memory

TrackPointorpointing
device

EntertheThinkPadSetupandchangeSerialATA(SA T A)settingtoCompatibility,and
runDiagnostics➙FixedDisks

Youcanalsodiagnosethedrivewithoutstartinguptheoperatingsystem.T odiagnose
thedrivefromtheThinkPadSetup,doasfollows:

1.Removeanydiskettefromthediskettedrive,andthenturnoffthecomputer.

2.Turnonthecomputer.

3.Whilethemessage,“Tointerruptnormalstartup,presstheblueThinkVangate
button,”isdisplayedatthelowerleftofthescreen,pressF1toentertheThinkPad
Setup.

4.Usingcursorkeys,selectHDDdiagnosticprogram.Pressenter.

5.Usingcursorkeys,selectMainharddiskdriveorUltrabayharddiskdrive.

6.PressEntertostartthediagnosticprogram.

2.InteractiveTests➙Diskette

2.InteractiveTests➙OpticalDriveT est

1.IftwoDIMMsareinstalled,removeoneofthemandrunDiagnostics➙System
Memory.

2.Iftheproblemdoesnotrecur,returntheDIMMtoitsplace,removetheotherone,
andrunthetestagain.

IftheT rackPointdoesnotwork,checkthecongurationasspeciedintheThinkPad
Setup.IftheT rackPointisdisabled,selectAutomatictoenableit.

AfteryouusetheT rackPoint,thepointermaydriftonthescreenforashorttime.This
driftcanoccurwhenaslight,steadypressureisappliedtotheT rackPointpointer.
Thissymptomisnotahardwareproblem.Ifthepointerstopsafterashorttime,no
serviceactionisnecessary.

IfenablingtheT rackPointdoesnotcorrecttheproblem,continuewiththefollowing:

•InteractiveTests➙Mouse

TouchPad

IftheT ouchPaddoesnotwork,checkthecongurationasspeciedintheThinkPad
Setup.IftheT ouchPadisdisabled,selectAutomatictoenableit.Ifenablingthe
TouchPaddoesnotcorrecttheproblem,continuewiththefollowing:

•InteractiveTests➙Mouse

Powersystemcheckout

Toverifyasymptom,dothefollowing:

1.T urnoffthecomputer.

2.Removethebatterypack.

3.Connecttheacadapter.

4.Checkthatpowerissuppliedwhenyouturnonthecomputer.

5.T urnoffthecomputer.

6.Disconnecttheacadapterandinstallthechargedbatterypack.

7.Checkthatthebatterypacksuppliespowerwhenyouturnonthecomputer.

Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:

•“Checkingtheacadapter”onpage33

•“Checkingoperationalcharging”onpage33

•“Checkingthebatterypack”onpage33

•“Checkingthebackupbattery”onpage34

32ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Checkingtheacadapter

1

2

3

(20V)

Youareherebecausethecomputerfailsonlywhentheacadapterisused.

•Ifthepowerproblemoccursonlywhenthedockingstationortheportreplicatorisused,replacethe
dockingstationortheportreplicator.

•Ifthepower-onindicatordoesnotturnon,checkthepowercordoftheacadapterforcorrectcontinuity
andinstallation.

•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingoperationalcharging”onpage33

Tochecktheacadapter,dothefollowing:

1.Unplugtheacadaptercablefromthecomputer.

2.Measuretheoutputvoltageattheplugoftheacadaptercable.Seethefollowinggure:

.

Pin

1+20

20

3

Note:Outputvoltageofpinno.2oftheacadaptermaydifferentfromtheoneyouareservicing.

3.Ifthevoltageisnotcorrect,replacetheacadapter.

4.Ifthevoltageisacceptable,dothefollowing:

•Replacethesystemboard.

•Iftheproblempersists,goto“FRUtests”onpage31.

Note:Noisefromtheacadapterdoesnotalwaysindicateadefect.

Voltage(Vdc)

Ground

Checkingoperationalcharging

Tocheckwhetherthebatterychargesproperlyduringoperation,useadischargedbatterypackorabattery
packthathaslessthan50%ofthetotalpowerremainingwheninstalledinthecomputer.

Performoperationalcharging.Ifthebatterystatusindicatororicondoesnotturnon,removethebattery
packandletitreturntoroomtemperature.Reinstallthebatterypack.Ifthechargeindicatororiconstilldoes
notturnon,replacethebatterypack.

Ifthechargeindicatorstilldoesnotturnon,replacethesystemboard.Thenreinstallthebatterypack.Ifitis
stillnotcharged,gotothenextsection.

Checkingthebatterypack

BatterychargingdoesnotstartuntilthePowerManagerBatteryGaugeshowsthatlessthan96%ofthe
totalpowerremains;underthisconditionthebatterypackcanchargeto100%ofitscapacity.Thisprotects
thebatterypackfrombeingoverchargedorfromhavingashortenedlife.

Tocheckyourbattery,moveyourcursortothePowerManagerBatteryGaugeiconintheicontrayofthe
Windowstaskbarandwaitforamoment(butdonotclick),andthepercentageofbatterypowerremaining
isdisplayed.Togetdetailedinformationaboutthebattery,double-clickthePowerManagerBattery
Gaugeicon.

Chapter3.Generalcheckout33

Note:Ifthebatterypackbecomeshot,itmaynotbeabletocharge.Removeitfromthecomputerandleave

1(+)

2(+)

3

4

5

6(-)

7(-)

Red(+)

Black(-)

itatroomtemperatureforawhile.Afteritcoolsdown,reinstallandrechargeit.

Tocheckthebatterypack,dothefollowing:

1.Poweroffthecomputer.

2.Removethebatterypackandmeasurethevoltagebetweenbatteryterminals1(+)and7(-).Seethe
followinggure:

Terminal

1+0to+12.6

7

Voltage(Vdc)

Ground(-)

3.Ifthevoltageislessthan+11.0Vdc,thebatterypackhasbeendischarged.

Note:Rechargingwilltakeatleast3hours,eveniftheindicatordoesnotturnon.

Ifthevoltageisstilllessthan+11.0Vdcafterrecharging,replacethebattery.

4.Ifthevoltageismorethan+11.0Vdc,measuretheresistancebetweenbatteryterminals5and7.
Theresistancemustbe4to30KΩ.Iftheresistanceisnotcorrect,replacethebatterypack.Ifthe
resistanceiscorrect,replacethesystemboard.

Checkingthebackupbattery

Dothefollowing:

1.Poweroffthecomputer,andunplugtheacadapterfromit.

2.T urnthecomputerupsidedown.

3.Removethebatterypack(see“1010Batterypack”onpage60).

4.Removethebackupbattery(see“1120Backupbattery”onpage78).

5.Measurethevoltageofthebackupbattery.Seethefollowinggure.

Wire

Red+2.5to+3.2

Black

Voltage(Vdc)

Ground

•Ifthevoltageiscorrect,replacethesystemboard.

•Ifthevoltageisnotcorrect,replacethebackupbattery.

•Ifthebackupbatterydischargesquicklyafterreplacement,replacethesystemboard.

34ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter4.Relatedserviceinformation

Thischapterpresentsfollowinginformation:

•“RestoringthefactorycontentsbyusingRecoveryDiscSet”onpage35

•“Passwords”onpage36

•“Powermanagement”onpage38

•“Symptom-to-FRUindex”onpage39

ServiceWebsite:

Whenthelatestmaintenancedisketteandthesystemprogramservicediskettebecomeavailable,theywill
bepostedonhttp://www.lenovo.com/spm.

RestoringthefactorycontentsbyusingRecoveryDiscSet

Whentheharddiskdrive(HDD)orsolidstatedrive(SSD)isreplacedbecauseofafailure,noproductrecovery
programisonthenewdrive.Inthiscase,youmustusetheRecoveryDiscSetforthecomputer.Orderthe
RecoveryDiscSetandthedriveatthesametimesothatyoucanrecoverthenewdrivewiththepre-installed
softwarewhentheyarrive.Forinformationonwhichdiscstoorder,see“Recoverydiscs”onpage160

TherecoverydiscsetconsistsoftheuserinstructionsandthefollowingsetofDVDstorestorethecomputer
totheoriginalfactoryconguration.

OperatingSystemRecoveryDisc(onedisc)

ThisdiscrestorestheMicrosoft®Windowsoperatingsystem.Usethisdisctostarttherecoveryprocess.

ApplicationsandDriversRecoveryDisc(oneormorediscs)

Thisdiscrestoresthepreinstalledapplicationsanddriversonthecomputer.

SupplementalRecoveryDisc

Thisdisccontainsadditionalcontent,suchasupdatestothesoftwarethatwaspreinstalledonthecomputer .
NotallrecoverydiscsetscomewithaSupplementalRecoveryDisc.

.

Notes:

•YoumusthaveaDVDdrivetousetherecoverydiscs.IfyoudonothaveaninternalDVDdrive,you
canuseanexternalUSBDVDdrive.

•Duringtherecoveryprocess,alldataonthedrivewillbedeleted.Ifpossible,copyanyimportantdata
orpersonallesthatyouwanttokeepontoremovablemediaoranetworkdrivebeforeyoustartthe
recoveryprocess.

Torestorethecomputertotheoriginalfactorycongurationusingtherecoverydiscset,dothefollowing:

Note:Recoverytakesseveralhours.Thelengthoftimedependsonthemethodyouuse.Ifyouuserecovery
discs,recoverytakesatleastvehours.

1.MaketheCD/DVDdrivetherststartupdeviceinthestartupsequenceusingthefollowingprocedure:

a.PressandholddowntheF1key,andthenturnonthecomputer.Whenthelogoscreenisdisplayed

orifyouhearrepeatingbeeps,releasetheF1key.TheSetupUtilityprogramopens.

b.UsethearrowkeystoselectStartup➙Boot.

c.SelecttheCD/DVDdriveasthe1stBootDevice.

2.InserttheOperatingSystemRecoveryDiscintotheDVDdrive.

©CopyrightLenovo2011

35

3.PressF10tosavetheSetupUtilitycongurationchanges.Followtheinstructionsonthescreento
begintherecoveryprocess.

4.SelectyourlanguageandclickNext.

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

6.ClickY esinthedisplayedwindowtobegintheoperatingsystemrecoveryprocess.

7.InserttheApplicationsandDriversRecoveryDiscwhenpromptedandthenclickOKtobeginthe
applicationsanddriversrecoveryprocess.

8.IfyouhaveaSupplementalRecoveryDisc,insertitwhenpromptedandclickYes.Ifyoudonothavea
SupplementalRecoveryDisc,clickNo.

9.Whenallofthedatahasbeencopiedfromthelastdiscinthesetandhasbeenprocessed,removethe
discandrestartthecomputer.

Note:Therestoftherecoveryprocessisfullyautomatedandnoactionisrequiredbyyou.The
computerwillrestartintotheMicrosoftWindowsdesktopseveraltimesandyoumightexperience
periodswhennoactivityisapparentonthescreenforseveralminutesatatime.Thisisnormal.

10.Whentherecoveryprocessiscomplete,theSetUpWindowsscreenisdisplayed.Followthe
instructionsonthescreentocompletetheWindowssetup.

11.AfteryouhavecompletedtheWindowssetup,youmightwanttorestoretheoriginalstartupsequence.
StarttheSetupUtilityprogramandthenpressF9torestorethedefaultsettings.PressF10tosaveand
exittheSetupUtility.

Note:Afterrestoringadrivetothefactorydefaultsettings,youmightneedtoreinstallsomedevicedrivers.

Passwords

AsmanyasthreepasswordsmaybeneededforanyThinkPadNotebook:thepower-onpassword(POP),
thehard-diskpassword(HDP),andthesupervisorpassword(SVP).

Ifanyofthesepasswordshasbeenset,apromptforitappearsonthescreenwheneverthecomputeris
turnedon.Thecomputerdoesnotstartuntilthepasswordisentered.

Note:IfonlyanSVPisinstalled,thepasswordpromptdoesnotappearwhentheoperatingsystemisbooted.

Power-onpassword

Apower-onpassword(POP)protectsthesystemfrombeingpoweredonbyanunauthorizedperson.The
passwordmustbeenteredbeforeanoperatingsystemcanbebooted.ForhowtoremovethePOP ,see
“Howtoremovethepower-onpassword”onpage37.

Hard-diskpassword

Therearetwohard-diskpasswords(HDPs):

•UserHDP—fortheuser

•MasterHDP—forthesystemadministrator,whocanuseittogetaccesstotheharddiskeveniftheuser
haschangedtheuserHDP

Note:TherearetwomodesfortheHDP:UseronlyandMaster+User.TheMaster+Usermoderequires
twoHDPs;thesystemadministratorentersbothinthesameoperation.Thesystemadministratorthen
providestheuserHDPtothesystemuser.

Attention:IftheuserHDPhasbeenforgotten,checkwhetheramasterHDPhasbeenset.Ifithas,itcanbe
usedforaccesstotheharddiskdrive.IfnomasterHDPisavailable,neitherLenovonorLenovoauthorized

36ThinkPadT520,T520i,andW520HardwareMaintenanceManual

servicetechniciansprovideanyservicestoreseteithertheuserorthemasterHDP ,ortorecoverdatafrom
theharddiskdrive.Theharddiskdrivecanbereplacedforascheduledfee.

ForhowtoremovethePOP ,see“Howtoremovethehard-diskpassword”onpage37.

Supervisorpassword

Asupervisorpassword(SVP)protectsthesysteminformationstoredintheThinkPadSetup.Theusermust
entertheSVPinordertogetaccesstotheThinkPadSetupandchangethesystemconguration.

Attention:IftheSVPhasbeenforgottenandcannotbemadeavailabletotheservicetechnician,thereisno
serviceproceduretoresetthepassword.Thesystemboardmustbereplacedforascheduledfee.

Howtoremovethepower-onpassword

(A)IfnoSVPhasbeenset:

ToremoveaPOPthatyouhaveforgotten,dothefollowing:

1.T urnoffthecomputer.

2.Removethebatterypack.Forhowtoremovethebatterypack,see“1010Batterypack”onpage60.

3.Removethebackupbattery.Forhowtoremovethebackupbattery,see“1120Backupbattery”on
page78.

4.T urnonthecomputerandwaituntilthePOSTends.AfterthePOSTends,thepasswordpromptdoes
notappear.ThePOPhasbeenremoved.

5.Reinstallthebackupbatteryandthebatterypack.

(B)IfanSVPhasbeensetandisknownbytheservicetechnician:

1.T urnonthecomputer.

2.WhentheThinkPadlogocomesup,immediatelypressF1toenterThinkPadSetup.WhenPower-On
Passwordiconisappearingonthescreen,enterthePower-OnPassword.

3.T ypethesupervisorpasswordwhenthesystemrequiresitandpressenter.TheThinkPadSetup
windowopens.

4.SelectSecurity,usingthecursordirectionalkeystomovethemenu.

5.SelectPassword.

6.SelectPower-OnPassword.

7.T ypethecurrentPower-OnPasswordintheEnterCurrentPasswordeld.thenleavetheEnter
NewPasswordeldblank,andpressEntertwice.

8.Inthe“Changeshavebeensaved”window,pressEnter.

9.PressF10;then,intheSetupconrmationwindow,selectYes.

Howtoremovethehard-diskpassword

Attention:IfUseronlymodeisselectedandtheuserHDPhasbeenforgottenandcannotbemade

availabletotheservicetechnician,neitherLenovonorLenovoauthorizedservicetechniciansprovideany
servicestoresettheuserHDPsortorecoverdatafromtheharddiskdrive.Theharddiskdrivecanbe
replacedforascheduledfee.

ToremoveauserHDPthathasbeenforgotten,whentheSVPandthemasterHDPareknown,dothe
following:

1.T urnonthecomputer.

2.WhentheThinkPadlogocomesup,immediatelypressF1toenterThinkPadSetup.WhenPower-On
Passwordiconisappearingonthescreen,enterthePower-OnPassword.

Chapter4.Relatedserviceinformation37

3.SelectSecurity,usingthecursordirectionalkeystomovethemenu.

4.SelectPassword.

5.SelectHard-diskxpassword,wherexistheletteroftheharddiskdrive.Apop-upwindowopens.

6.SelectMasterHDP.

7.T ypethecurrentmasterHDPintheEnterCurrentPasswordeld.thenleavetheEnterNewPassword
eldblank,andpressEntertwice.

8.PressF10.

9.SelectYesintheSetupCongurationwindow.BothuserHDPandmasterHDPwillhavebeenremoved.

Powermanagement

Toreducepowerconsumption,thecomputerhasthreepowermanagementmodes:screenblank,sleep
(standbyinWindowsXP),andhibernation.

Screenblankmode

Ifthetimesetonthe“T urnoffmonitor”timerintheoperatingsystemexpires,theLCDbacklightturnsoff.

Toputthecomputerintoscreenblankmode,doasfollows:

1.PressFn+F3.Apanelforselectingapowerplan(inWindowsXP ,powerscheme)appears.

2.SelectPoweroffdisplay(keepcurrentpowerplan)(inWindowsXP ,keepcurrentpowerscheme).

Youcanalsoputthecomputerintoscreenblankmode,pressThinkVantagebuttonandusetheThinkVantage
Toolbox.

Toendscreenblankmodeandresumenormaloperation,pressanykey.

Sleep(standby)mode

Whenthecomputerenterssleep(standby)mode,thefollowingeventsoccurinadditiontowhatoccurs
inscreenblankmode:

•TheLCDispoweredoff.

•Theharddiskdriveispoweredoff.

•TheCPUstops.

Toentersleep(standby)mode,pressFn+F4.

Note:YoucanchangetheactionoftheFn+F4keycombinationbychangingthesettingsinPowerManager.

Incertaincircumstances,thecomputergoesintosleep(standby)modeautomatically:

•Ifa“suspendtime”hasbeensetonthetimer,andtheuserdoesnotdoanyoperationwiththekeyboard,
theT rackPoint,theharddisk,theparallelconnector,orthediskettedrivewithinthattime.

•Ifthebatteryindicatorblinksorange,indicatingthatthebatterypowerislow.

Note:Evenifyoudonotsetthelow-batteryalarm,thechargeindicatornotiesyouwhenthebatteryislow,
andthenthecomputerentersthepower-savingmodeautomatically.

Tocausethecomputertoreturnfromsleep(standby)modeandresumeoperation,dooneofthefollowing:

•PresstheFnkey.

•OpentheLCDcover.

•Turnonthepowerswitch.

38ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Also,ineitherofthefollowingevents,thecomputerautomaticallyreturnsfromsleep(standby)modeand
resumesoperation:

•Theringindicator(RI)issignaledbyaserialdeviceoraPCCarddevice.(doesnotsupportthering

indicator(RI)resumebyPCCarddevice.)

•Thetimesetontheresumetimerelapses.

Note:Thecomputerdoesnotacceptanyinputimmediatelyafteritenterssleep(standby)mode.Waita
fewsecondsbeforetakinganyactiontoreenteroperationmode.

Hibernationmode

Inhibernationmode,thefollowingoccurs:

•Thesystemstatus,RAM,VRAM,andsetupdataarestoredontheharddisk.

•Thesystemispoweredoff.

Note:Ifthecomputerentersthehibernationmodewhileitisdockedtothedockingstation,donotundockit
beforeresumingnormaloperation.Ifyoudoundockitandthentrytoresumenormaloperation,youwillget
anerrormessage,andyouwillhavetorestartthesystem.

Tocausethecomputertoenterhibernationmode,doanyofthefollowing:

•PresstheFn+F12keys.

•Ifyouhavedenedoneofthefollowingactionsastheeventthatcausesthesystemtogointohibernation
mode,performthataction.
–Closingthelid.
–Pressingthepowerbutton.
–PressingFn+F4keys.

Also,thecomputergoesintohibernationmodeautomaticallyineitherofthefollowingconditions:

•Ifa“hibernationtime”hasbeensetonthetimer,andiftheuserdoesnotdoanyoperationwiththe
keyboard,theT rackPoint,theharddiskdrive,theparallelconnector,orthediskettedrivewithinthattime.

•Ifthetimerconditionsaresatisedinsuspendmode.

Whenthepoweristurnedon,thecomputerreturnsfromhibernationmodeandresumesoperation.The
hibernationleinthebootrecordontheharddiskdriveisread,andsystemstatusisrestoredfromthe
harddiskdrive.

Symptom-to-FRUindex

Thissectioncontainsfollowinginformation:

•“Numericerrorcodes”onpage40

•“Errormessages”onpage41

•“Beepsymptoms”onpage42

•“No-beepsymptoms”onpage43

•“LCD-relatedsymptoms”onpage43

•“Intermittentproblems”onpage43

•“Undeterminedproblems”onpage44

Thesymptom-to-FRUindexinthissectionlistssymptomsanderrorsandtheirpossiblecauses.Themost
likelycauseislistedrst,inboldfacetype.

Chapter4.Relatedserviceinformation39

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

Thisindexcanalsohelpyoudetermine,duringregularservicing,whatFRUsarelikelytoneedtobe
replacednext.

AnumericerrorisdisplayedforeacherrordetectedinPOSTorsystemoperation.Inthedisplays,ncan
beanynumber.

Ifnonumericcodeisdisplayed,checkthenarrativedescriptionsofsymptoms.Ifthesymptomisnot
describedthere,goto“Intermittentproblems”onpage43.

Note:ForadevicenotsupportedbydiagnosticcodesintheThinkPadNotebooks,seethemanualfor
thatdevice.

Numericerrorcodes

Table2.Numericerrorcodes

Symptomorerror

0177

BadSVPdata,stopPOSTtask—Thechecksumofthe
supervisorpasswordintheEEPROMisnotcorrect.

0182

BadCRC2.EnterUEFIBIOSSetupandloadSetup
defaults.—ThechecksumoftheCRS2settinginthe
EEPROMisnotcorrect.

0183

BadCRCofSecuritySettingsinEFIVariable.Enter
ThinkPadSetup.

0187

EAIAdataaccesserror—TheaccesstoEEPROMisfailed.

0188

InvalidRFIDSerializationInformationArea.

0189

InvalidRFIDcongurationinformationarea—The
EEPROMchecksumisnotcorrect.

0190

Criticallow-batteryerror

0191

SystemSecurity—InvalidRemoteChangerequested.

0199

SystemSecurity—Securitypasswordretrycount
exceeded.

0251

SystemCMOSchecksumbad—Defaultconguration
used.

0271

Real-timeclockerror.Checkdateandtimesettings.

FRUoraction,insequence

Systemboard

1.RunThinkPadSetup.PressF9,andEntertoload
thedefaultsetting.Thensavethecurrentsetting
bypressingF10.

2.Systemboard

Systemboard

Systemboard

Systemboard

1.Chargethebatterypack.

2.Batterypack

1.RunThinkPadSetup,andthensavecurrent

settingbypressingF10.

2.Systemboard

1.RunThinkPadSetup,andthensavethecurrent

settingbypressingF10.

2.Systemboard

1.Chargethebackupbatteryformorethan8hours

byconnectingtheacadapter.

2.ReplacethebackupbatteryandrunThinkPadSetup
toresetthetimeanddate.

RunThinkPadSetuptoresetthetimeanddate.

40ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table2.Numericerrorcodes(continued)

Symptomorerror

1802

Unauthorizednetworkcardispluggedin—Turnoffand
removetheminiPCInetworkcard.

1820

Morethanoneexternalngerprintreaderisattached.
Poweroffandremoveallbutthereaderthatyousetup
withinyourmainoperatingsystem.

2000

HardDriveActiveProtectionsensordiagnosticsfailed.
Press<Esc>tocontinue.Press<F1>toenterSETUP

2100

DetectionerroronHDD0(MainHDD)

2101

DetectionerroronHDD1(UltrabayHDD)

2102

DetectionerroronHDD2(MiniSATA)

2110

ReaderroronHDD0(MainHDD)

2111

ReaderroronHDD1(UltrabayHDD)

2112

ReaderroronHDD2(MiniSA T A)

2200

MachineT ypeandSerialNumberareinvalid.

2201

MachineUUIDisinvalid.

FRUoraction,insequence

1.RemoveMiniPCInetworkcard.

2.Systemboard

Removeallbutthereaderthatyousetupforthe
authentication.

1.Undockdockingstationorportreplicatorifitis

attachedtotheThinkPadNotebook.

2.PlacetheNotebookonahorizontalsurface.Donot

applyanyphysicalshocktothecomputer.

3.RunDiagnostics➙ThinkPadDevices➙HDD

ActiveProtectionT est.

1.Reseattheharddiskdrive.

2.Mainharddiskdrive

3.Systemboard

1.Reseattheharddiskdrive.

2.Ultrabayharddiskdrive

3.Systemboard

1.ReseattheMiniSAT Adevice.

2.MiniSA T Adevice

3.Systemboard

1.Reseattheharddiskdrive.

2.Mainharddiskdrive

3.Systemboard

1.Reseattheharddiskdrive.

2.Ultrabayharddiskdrive

3.Systemboard

1.ReseattheMiniSAT Adevice.

2.MiniSA T Adevice

3.Systemboard

Systemboard

Systemboard

Errormessages

Table3.Errormessages

Symptomorerror

Fanerror.1.Fan

Thermalsensingerror.

FRUoraction,insequence

2.Thermalgrease

3.Systemboard

Systemboard

Chapter4.Relatedserviceinformation41

Table3.Errormessages(continued)

Symptomorerror

Thissystemdoesnotsupportbatteriesthatarenot
genuineLenovo-madeorauthorized.Thesystemwill
continuetoboot,butmaynotchargeunauthorized
batteries.
Attention:Lenovohasnoresponsibilityforthe
performanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingout
oftheiruse.

TheconnectedACadapterhasalowerwattagethanthe
recommendedmodelwhichwasshippedwiththesystem.
Thiswillincreasethetimetochargethebattery,and
systemperformancewillbeadjustedtomatchthe
availablepower.
PleaseconnecttheACadapterwhichwasshippedwith
thesystemforbestsystemperformance.
PresstheESCkeytocontinue.Dockingstationis
removedoritsIDisdifferent,pressF3topoweroff
systemandrestorecorrectdockingstation,pressF4to
normalboot.

Beepsymptoms

Table4.Beepsymptoms

FRUoraction,insequence

Replacethebattery.

Chargetheacpoweradapter.

Symptomorerror

Onebeepandablank,unreadable,orashingLCD.1.ReseattheLCDconnector

Onelongandtwoshortbeeps,andablankorunreadable
LCD.

Twoshortbeepswitherrorcodes.

Twoshortbeepsandablankscreen.

Twoormorebeeps,oracontinuousbeep.Operating
systemstartssuccessfully.

Threeshortbeeps,pause,threemoreshortbeeps,and
oneshortbeep.

Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,andoneshortbeep.

Onlythecursorappears.

Fourcyclesoffourshortbeepsandablankscreen.

Fiveshortbeepsandablankscreen.

FRUoraction,insequence

2.LCDassembly

3.ExternalCRT

4.Systemboard

1.Systemboard

2.LCDassembly

3.DIMM

POSTerror .See“Numericerrorcodes”onpage40.

1.Systemboard

2.DIMM

Ifamini-PCIEthernetcardisinstalled,conrmthatAlert
OnLAN2inThinkPadSetupisdisabled.

1.DIMM

2.Systemboard

Reinstalltheoperatingsystem.

Systemboard(securitychip)

Systemboard

42ThinkPadT520,T520i,andW520HardwareMaintenanceManual

No-beepsymptoms

Table5.No-beepsymptoms

Symptomorerror

Nobeep,power-onindicatoron,LCDblank,andno
POST.

Nobeep,power-onindicatoron,andLCDblankduring
POST.

Thepower-onpasswordpromptappears.Apower-onpasswordorasupervisorpasswordisset.

Thehard-diskpasswordpromptappears.Ahard-diskpasswordisset.T ypethepasswordand

FRUoraction,insequence

1.Makesurethateveryconnectorisconnected

tightlyandcorrectly.

2.DIMM

3.Systemboard

1.ReseatDIMM.

2.Systemboard

TypethepasswordandpressEnter.

pressEnter.

LCD-relatedsymptoms

Important:TheTFTLCDforthenotebookcomputercontainsmanythin-lmtransistors(TFT s).The

presenceofasmallnumberofdotsthataremissing,discolored,oralwayslightedischaracteristicofTFT
LCDtechnology,butexcessivepixelproblemscancauseviewingconcerns.IftheLCDyouareservicinghas
twoorlessvisibledefectivepixels,itshouldnotbeconsideredfaulty.However,iftheLCDhasthreeormore
visibledefectivepixels,itwillbedeemedasdefectivebyLenovoanditshouldbereplaced.

Note:

•ThispolicyappliestoallThinkPadNotebookspurchasedon1January,2008orlater.

•LenovowillnotprovidereplacementiftheLCDiswithinspecicationaswecannotguaranteethat
anyreplacementLCDwillhavezeropixeldefects.

•OnepixelconsistsofR,G,Bsub-pixels.

Table6.LCD-relatedsymptoms

Symptomorerror

Nobeep,power-onindicatoron,andablankLCDduring
POST.

•LCDbacklightnotworking

•LCDtoodark

•LCDbrightnesscannotbeadjusted.

•LCDcontrastcannotbeadjusted.

•LCDscreenunreadable

•Charactersmissingpixels

•Screenabnormal

•Wrongcolordisplayed

HorizontalorverticallinesdisplayedonLCDLCDassembly

FRUoraction,insequence

Systemboard

1.ReseattheLCDconnectors.

2.LCDassembly

3.Systemboard

1.Seeimportantnotefor“LCD-relatedsymptoms. ”

2.ReseatallLCDconnectors.

3.LCDassembly

4.Systemboard

Intermittentproblems

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

Whenanalyzinganintermittentproblem,dothefollowing:

1.Runthediagnostictestforthesystemboardinloopmodeatleast10times.

Chapter4.Relatedserviceinformation43

2.Ifnoerrorisdetected,donotreplaceanyFRUs.

3.Ifanyerrorisdetected,replacetheFRUshownbytheFRUcode.Rerunthetesttoverifythatno
moreerrorsexist.

Undeterminedproblems

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

Verifythatallattacheddevicesaresupportedbythecomputer.

Verifythatthepowersupplybeingusedatthetimeofthefailureisoperatingcorrectly.(See“Powersystem
checkout”onpage32.)

1.T urnoffthecomputer.

2.VisuallycheckeachFRUfordamage.ReplaceanydamagedFRU.

3.Removeordisconnectallofthefollowingdevices:
a.Non- ThinkPaddevices
b.Devicesattachedtothedockingstationortheportreplicator
c.Printer,mouse,andotherexternaldevices
d.Batterypack
e.Harddiskdrive
f.Externaldiskettedriveoropticaldrive
g.DIMM
h.Opticaldiskordisketteintheinternaldrive
i.PCCards

4.T urnonthecomputer.

5.Determinewhethertheproblemhasbeensolved.

6.Iftheproblemdoesnotrecur,reconnecttheremoveddevicesoneatatimeuntilyoundthefailingFRU.

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

44ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter5.InstallingandconguringRAID

ThischapterpresentsfollowinginformationaboutattachingSATAdevicesandconguringRAIDforthe
RAID-supportedmodelsinthisproduct.

Note:WhentheUEFIBIOSwasformattedorthesystemboardwasreplacedintheRAID-supportedmodels,
RAIDisenabledbydefault.

ImportantnoticesforsettingRAID:

BeforeyouinstallandcongureRAID,makesureofthecurrentRAIDsettingonthecomputeryouare
servicing.

ThisproductsupportseitherRAIDLevel0(RAID0)orRAIDLevel1(RAID1).ConrmtheRAIDsetting
informationprovidedfromthecustomeratrst,thenproceedwiththeinstallation.

GoodornonfailingdriveshavetobeinHDDbay0ifyouhaveRAID1.

•“SupportedRAIDcongurations”onpage45

•“ConguringthesystemUEFIBIOStoenableembeddedSATARAIDfunctionality”onpage45

•“CreatingRAIDvolumes”onpage45

•“DeletingRAIDvolumes”onpage46

SupportedRAIDcongurations

ThefollowingRAIDcongurationsaresupportedonThinkPadW520:

RAIDLevel0(RAID0)–Stripeddiskarray

Betterperformanceandnofaulttolerance.

RAIDLevel1(RAID1)–Mirroreddiskarray

Improvedreadperformanceand100%redundancy .

ConguringthesystemUEFIBIOStoenableembeddedSAT ARAID
functionality

ToconguretheUEFIBIOSforRAID,doasfollows:

1.PressF1toentertheThinkPadSetupmenu.

2.SelectCong.

3.SelectSerialA TA(SA TA).

4.SelectSA T AControllerModeOption

5.SelectRAID

6.PressF10tosavethesettings.

Note:SA T AControllerModeOptionisrecoveredtoRAIDbydefault.Whenyouuseothermodebefore
loaddefaultsettinginThinkPadSetupmenusuchasF9key,youhavetorestorethesettingasyoulike.

CreatingRAIDvolumes

ThissectiondescribeshowtousetheIntel®RapidStorageT echnologyoptionROMCongurationUtilityto
createRAIDvolumes.

©CopyrightLenovo2011

45

TocreateRAIDvolumes,doasfollows:

1.T urnonthecomputer.

2.Duringthestartup,whenaprompttopressCtrl+ItoentertheCongurationUtilityisdisplayedonthe
screen,pressandholdtheCtrlkey,andpresstheIkey.

3.ThescreenforIntelRapidStorageT echnologyoptionROMisdisplayed.Select“CreateRAIDVolume”
andpressEnter.

4.Usingtheupanddownarrowkeys,T abkeys,andEnterkeyselecttheRAIDlevelandllinotherelds.

5.Select“CreateVolume”bypressingtheEnterkey.Whenthedialogboxappears,presstheYkey.

Attention:AllexistingdatawillbeerasedwhiletheRAIDvolumeisbeingcreated.

6.ExittheCongurationUtility.

DeletingRAIDvolumes

ThissectiondescribeshowtousetheIntelRapidStorageT echnologyoptionROMCongurationUtilityto
deleteRAIDvolumes.

TodeleteRAIDvolumes,doasfollows:

1.T urnonthecomputer.

2.Duringthestartup,whenaprompttopressCtrl+ItoentertheCongurationUtilityisdisplayedonthe
screen,pressandholdtheCtrlkey,andpresstheIkey.

3.ThescreenforIntelRapidStorageT echnologyoptionROMisdisplayed.SelecttheRAIDvolumetobe
deleted,andpressDelete.

4.Whenprompted,pressYkeytoconrmthedeletionoftheselectedRAIDvolume.

5.AfterdeletingaRAIDvolume,youcan:

•Returntostep2todeleteadditionalRAIDvolume.

•See“CreatingRAIDvolumes”onpage45forRAIDvolumecreation.

•UsethearrowkeystoselectExitandpressEnter.

•UsethearrowkeystoselectResettingdiskstonon-RAID,andpressEnter.

Attention:IftheSerialAT AitemintheThinkPadSetupmenuofthecomputeryouareservicingwassetto
AHCIwhenitwasmanufactured,thentocreateaRAIDarrayyoumustrstenableRAIDinUEFIBIOS,create
RAIDvolume,andthenreinstalltheoperatingsystem.Alldataontheharddiskswillbeerasedduringthis
process.Formoreinformation,see“CreatingRAIDvolumes”onpage45.

46ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter6.Statusindicators

7

8

3 4 5 621

9

12 11 10

Thischapterpresentsthesystemstatusindicatorsthatshowthestatusofthecomputer.

©CopyrightLenovo2011

47

Table7.Statusindicators

R

IndicatorMeaning

1

Speakermute

Orange:

Thespeakerisonmute.Tosetthe
speakersonmuteorunmute,pressthe
speakermutebutton.

2

Microphonemute

Orange:

Themicrophoneisonmute.Noneofthe
recordingdevicesisavailablewhilethe
microphonemuteisonbydefault.

3

WirelessLAN,
WirelessWAN,or
WiMAXstatus

Green:ThewirelessLANfeature(theIEEE

802.11b/gstandard,802.11a/b/g,
or802.11n),wirelessWANfeature,or
WiMaxfeatureison,andtheradiolink
isreadyforuse.

Blinkinggreen:Dataisbeingtransmitted.

4

Bluetoothwireless
status

Green:

TheBluetoothwirelessfeatureison,and
theradiolinkisreadyforuse.

Blinkinggreen:Dataisbeingtransmitted.

5

Deviceaccess

Green:

Dataisbeingreadfromorwrittentothe
harddiskdrive,thediskettedrive,orthe
driveintheSerialUltrabayEnhanced
device.Whenthisindicatorison,donot
putthecomputerintosleep(standby)
modeorturnoffthecomputer.

Note:Donotmovethesystemwhilethegreendeviceaccesslightison.Sudden
physicalshockcouldcausedriveerrors.

6

Poweron

Green:

Thecomputerisonandreadytouse.
Thisindicatorstayslitaroundthe
power-onbuttonwheneverthecomputer
isonandisnotinsleep(standby)mode.

7

SerialUltrabay
Enhanceddevice
status

Green:ASerialUltrabayEnhanceddeviceis

installedandinuse.

Blinkinggreen:

ASerialUltrabayEnhanceddeviceisin
theprocessofbeingdetached.

Turnoff:

ASerialUltrabayEnhanceddeviceis
readytobeattachedordetached.

8

Fingerprintreader
status

Green:

Blinkinggreen:

Thengerprintreaderisreadytoswipe.

Thengerprintisbeingauthenticatedor
hasbeenauthenticated.

Blinkingorange:

Thengerprintcouldnotbe
authenticated.

48ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table7.Statusindicators(continued)

IndicatorMeaning

9

Capslock

Green:CapsLockmodeisenabled.T oenable

ordisableCapsLockmode,pressthe
CapsLockkey.

10

Sleep(standbyfor
WindowsXP)status

Green:Thecomputerisinsleep(standby)mode.

Blinkinggreen:

Thecomputerisenteringsleep(standby)
modeorhibernationmode,oris
resumingnormaloperation.

11

Batterystatus

Green:

Orange:

Thebatteryhasmorethan20%charge.

Thebatteryhasbetween5%and20%
charge.

Fastblinkingorange:

Thebatteryhaslessthan5%charge.

Note:Thebatterymaybecharging.

Slowblinkingorange:

Thebatteryisbeingcharged.Whenit
reaches20%,theblinkingcolorchanges
togreen.

Slowblinkinggreen:

Thebatteryhasbetween20%and80%
charge,andchargingiscontinuing.
Whenthebatteryreaches80%charge,
blinkingstops,butthechargingmay
continueuntilthebatteryis100%
charged.

Note:Ifthecomputerisoperating
onbatterypower,thebatterystatus
indicatordoesnotworkwhilethe
computeristurnedofforisinsleep
(standby)modeorhibernationmode.

Quickblinkingorange:

Anerrorhasbeenoccurredinthebattery.

Thebatterystatusindicatorisoff:Thebatterypackofthecomputeris

detached.

12

Colorsensorstatus

Green:Calibrationiscomplete.Whenthelidis

opened,theindicatorturnsoff.

Blinkinggreen:Displaycolorsarebeingcalibrated.

Chapter6.Statusindicators49

50ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter7.Fnkeycombinations

ThefollowingtableshowsthefunctionofeachcombinationofFnwithafunctionkey.

Table8.Fnkeycombinations

KeycombinationDescription

Fn+F1Reserved.

Fn+F2Lockthecomputer.

Fn+F3

Fn+F4

Fn+F5

Fn+F6

Fn+F7Applyapresentationschemedirectly,withnoneedtostartPresentationDirector.

Selectapowerplan(inWindowsXP ,powerscheme)thathasbeencreatedbyPowerManager,
oradjustthepowerlevelbyusingtheslidercontrol.Whenyoupressthiscombination,a
panelforselectingapowerplan(powerscheme)appears.

Notes:

Tousethiscombinationofthekeys,ThinkPadPMdevicedrivermusthavebeeninstalled
onthecomputer.

IfyouhaveloggedonwithanadministratoruserIDinWindowsXP ,andyoupressFn+F3,
thepanelforselectingapowerschemeappears.Ifyouhaveloggedonwithanotheruser
IDinWindowsXP ,andyoupressFn+F3,thepaneldoesnotappear.

Putthecomputerinsleep(standby)mode.T oreturntonormaloperation,presstheFnkey
only,withoutpressingafunctionkey.

Notes:

Tousethiscombinationofthekeys,ThinkPadPMdevicedrivermusthavebeeninstalled
onthecomputer.

Ifyouwanttousethecombinationtoputthecomputerintohibernationmodeor
do-nothingmode(inWindowsXP ,shutthecomputerdownorshowthepanelforturning
offthecomputer),changethesettingsinthePowerManager.

Enableordisablethebuilt-inwirelessnetworkingfeatures.IfyoupressFn+F5,alistofwireless
featuresisdisplayed.Y oucanquicklychangethepowerstateofeachfeatureinthelist.
Notes:IfyouwanttouseFn+F5toenableordisablethewirelessfeatures,thefollowing
devicedriversmustbeinstalledonthecomputerbeforehand:

•PowerManagementdriver

•OnScreenDisplayUtility

•Wirelessdevicedrivers

Changethecameraandaudiosettings.WhenyoupressFn+F6,thecameraandaudiosetting
windowisopenedandthecamerapreviewisturnedon.
Note:Thecamerasettingsareaonlyappearsifthecomputerhasanintegratedcamera.

©CopyrightLenovo2011

TodisablethisfunctionandusetheFn+F7keycombinationforswitchingadisplayoutput
location,startPresentationDirector,andchangethesettings.

Note:IfthecomputerisanWindows7model,itdoesnotsupportpresentationschemes,
howevertheFn+F7combinationmightstillbeusedtoswitchdisplayoutputlocation.

51

Table8.Fnkeycombinations(continued)

KeycombinationDescription

Fn+F7ForWindows7:

Switchbetweenthecomputerdisplayandanexternalmonitor.Windowswillshowthese
displayoptions:

•Computerdisplayonly(LCD)

•Computerdisplayandexternalmonitor(sameimage)

•Computerdisplayandexternalmonitor(extendeddesktopfunction)

•Externalmonitoronly
Note:T oswitchbetweenthecomputerdisplayandanexternalmonitor,theWin+Pkey
combinationisalsoavailable.

ForWindowsVistaandWindowsXP:

Switchbetweenthecomputerdisplayandanexternalmonitor.Ifanexternalmonitoris
attached,computeroutputisdisplayedinthefollowingthreepatternsbyturns:

•Externalmonitor(CRTdisplay)

•Computerdisplayandexternalmonitor(LCD+CRTdisplay)

•Computerdisplay(LCD)

Notes:

•Thisfunctionisnotsupportedifdifferentdesktopimagesaredisplayedonthecomputer
displayandtheexternalmonitor(theExtenddesktopfunction).

•ThisfunctiondoesnotworkwhileaDVDmovieoravideoclipisplaying.

•AsforThinkPadW520models,theCRTconnectordoesnotworkintheDOSenvironment
atNVIDIAOptimusmodeorIntegratedGraphicsmode,youneedtochangetoDiscrete
GraphicsmodetoturnontheCRTmonitor .IfthereisnodisplaytochangetheThinkPad
Setupsetting,pressF7toswitchtotheDiscreteGraphicsmoderightafterpower-on.

Toenablethisfunction,startPresentationDirector,andchangethesettings.

Note:MultipleuserscanlogontoasingleoperatingsystembyusingdifferentuserIDs.Each
userneedstodothefollowing:ClickStart➙AllPrograms➙ThinkVantage➙Presentation
Director,andchangetheFn+F7settings.

Fn+F8

Fn+F9Reserved.

Fn+F10Reserved.

Fn+F11Reserved.

Fn+F12Putthecomputerintohibernationmode.T oreturntonormaloperation,pressthepower

Fn+PgUp

ChangethesettingsoftheUltraNav®pointingdevice.

buttonforlessthanfourseconds.

Notes:

Tousethiscombinationofthekeys,ThinkPadPMdevicedrivermusthavebeeninstalled
onthecomputer.

ThoughthescreenfadesoutimmediatelyafterFn+F12arepressed,thecomputer
doesnotenterthehibernationmodeimmediately.Donotmovethesystemuntilthe
sleep(standby)statusindicatorstopsblinking.Movingthecomputerwhenitisentering
hibernationmightcausecorruptionoftheharddiskdrive.

TurntheThinkLight®onoroff.
Note:ThisfunctionissupportedonlyontheThinkPadNotebooksthathavetheThinkLight.
TheonoroffstatusoftheThinkLightisshownonthescreenforafewsecondswhenyou
pressFn+PgUp.

52ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table8.Fnkeycombinations(continued)

KeycombinationDescription

Fn+HomeThecomputerdisplaybecomesbrighter.

Thepurposeofthismethodistochangethebrightnessleveltemporarily.OnWindowsVista,
thedefaultbrightnesslevelisloadedaftersleep(standby),hibernation,reboot,ordetachingor
attachinganacadapter .Tochangethedefaultbrightnesslevel,changethesettingsofthe
PowerOptionintheControlPanelorusethePowerManager.

Fn+EndThecomputerdisplaybecomesdimmer.

Thepurposeofthismethodistochangethebrightnessleveltemporarily.OnWindowsVista,
thedefaultbrightnesslevelisloadedaftersleep(standby),hibernation,reboot,ordetachingor
attachinganacadapter .Tochangethedefaultbrightnesslevel,changethesettingsofthe
PowerOptionintheControlPanelorusethePowerManager.

Fn+SpacebarEnabletheFullScreenMagnierfunction.

Fn+PrtScHavethesamefunctionastheSysRqkey.

Fn+ScrLk

Enableordisablethenumerickeypad.Theindicatorofnumericlockwillbedisplayedon
thescreen.

Fn+Pause

Fn+cursorkeys

HavethesamefunctionastheBreakkey.

ThesekeycombinationsworkwithWindowsMediaPlayer.Theyhavethefollowingfunctions:

•Fn+downarrowkey:PlayorPause

•Fn+uparrowkey:Stop

•Fn+rightarrowkey:NextT rack

•Fn+leftarrowkey:PreviousTrack

Chapter7.Fnkeycombinations53

54ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter8.FRUreplacementnotices

Thischapterpresentsnoticesrelatedtoremovingandreplacingparts.Readthischaptercarefullybefore
replacinganyFRU.

Screwnotices

Loosescrewscancauseareliabilityproblem.IntheThinkPadNotebook,thisproblemisaddressedwith
specialnylon-coatedscrewsthathavethefollowingcharacteristics:

•Theymaintaintightconnections.

•Theydonoteasilycomeloose,evenwithshockorvibration.

•Theyarehardertotighten.

•Eachoneshouldbeusedonlyonce.

Dothefollowingwhenyouservicethismachine:

•Keepthescrewkit(fortheP/N,see“Miscellaneousparts”onpage157)inyourtoolbag.

•Alwaysusenewscrews.

•Useatorquescrewdriverifyouhaveone.

Tightenscrewsasfollows:

•Plastictoplastic
Turnanadditional90degreesafterthescrewheadtouchesthesurfaceoftheplasticpart:

•Logiccardtoplastic
Turnanadditional180degreesafterthescrewheadtouchesthesurfaceofthelogiccard:

•Torquedriver
Ifyouhaveatorquedriver,refertothe“T orque”columnforeachstep.
–Makesurethatyouusethecorrectscrew.Ifyouhaveatorquescrewdriver,tightenallscrewsrmly

tothetorqueshowninthetable.Neveruseascrewthatyouremoved.Useanewone.Make

surethatallofthescrewsaretightenedrmly.

–Ensuretorquescrewdriversarecalibratedcorrectlyfollowingcountryspecications.

©CopyrightLenovo2011

55

Retainingserialnumbers

Thissectionincludesthefollowingdescriptions:

•“Restoringtheserialnumberofthesystemunit”onpage56

•“RetainingtheUUID”onpage56

•“ReadingorwritingtheECAinformation”onpage57

Restoringtheserialnumberofthesystemunit

Whenthecomputerwasmanufactured,theEEPROMonthesystemboardwasloadedwiththeserial
numbersofthesystemandallmajorcomponents.Thesenumbersneedtoremainthesamethroughout
thelifeofthecomputer.

Ifyoureplacethesystemboard,youmustrestoretheserialnumberofthesystemunittoitsoriginalvalue.

Beforereplacingthesystemboard,savetheoriginalserialnumberbydoingthefollowing:

1.InstalltheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater,andrestartthe
computer.

2.Fromthemainmenu,select1.SetSystemIdentication.

3.Select2.ReadS/NdatafromEEPROM.

Theserialnumberofeachdeviceinyourcomputerisdisplayed;theserialnumberofthesystemunitis
listedasfollows:

•20:Serialnumber

Writedownthatnumber.

Note:Theserialnumberofthesystemunitisalsowrittenonthelabelattachedtothebottomofthecomputer.

Afteryouhavereplacedthesystemboard,restoretheserialnumberbydoingthefollowing:

1.InstalltheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlaterandrestartthe
computer.

2.Fromthemainmenu,select1.SetSystemIdentication.

3.Select1.AddS/NdatafromEEPROM.Followtheinstructionsonthescreen.

IftheMTMandProductIDnumbersdifferfromeachotherontherearlabel,usewhatisshownforthe
ProductIDeld.Seeexamplebelow:

MTMonrearlabel:

TTTT-CTOS/NSSSSSSS

ProductIDonrearlabel:

TTTT-MMM(UsethisnumberwhensettingSerialNumber)

Intheexample,theSerialNumbertobeinputis'1STTTTMMMSSSSSSS'.

RetainingtheUUID

TheUniversallyUniqueIdentier(UUID)isa128-bitnumberuniquelyassignedtoyourcomputerat
productionandstoredintheEEPROMofyoursystemboard.
ThealgorithmthatgeneratesthenumberisdesignedtoprovideuniqueIDsuntiltheyearA.D.3400.Notwo
computersintheworldhavethesamenumber.

56ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Whenyoureplacethesystemboard,youmustsettheUUIDonthenewsystemboardasfollows:

1.InstalltheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater,andrestartthe
computer.

2.Fromthemainmenu,select4.AssignUUID.AnewUUIDiscreatedandwritten.IfavalidUUIDalready
exists,itisnotoverwritten.

ReadingorwritingtheECAinformation

InformationonEngineeringChangeAnnouncements(ECA)arestoredintheEEPROMofthesystemboard.
TheelectronicstorageofthisinformationsimpliestheproceduretocheckiftheECAhasbeenpreviously
appliedtoamachine.ThemachinedoesnotneedtobedisassembledtocheckfortheECAapplication.

TocheckwhatECAshavebeenpreviouslyappliedtothemachine,usetheECAInformationRead/Write
functionontheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater.

1.InserttheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater,andrestartthe
computer.

2.Fromthemainmenu,select6.SetECAInformation.

3.T oreadECAinformation,select2.ReadECA/reworknumberfromEEPROMandfollowthe
instruction.

4.T oreadboxbuilddate,select5.ReadboxbuilddatefromEEPROM,andfollowtheinstructionon
thescreen.

AfteranECAhasbeenappliedtothemachine,theEEPROMmustbeupdatedtoreecttheECA's
application.UsetheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlatertoupdatethe
EEPROM.

Note:OnlytheECAnumberisstoredintheEEPROM.ThemachinetypeoftheECAisassumedbethesame
asthemachinetypeofthemachinethathadtheECAappliedtoit.

1.InserttheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater,andrestartthe
computer.

2.Fromthemainmenu,select6.SetECAInformation.

3.T owriteECAinformation,select1.WriteECA/reworknumberfromEEPROM,andfollowthe
instruction.

4.T owriteboxbuilddate,select4.WriteboxbuilddatefromEEPROM,andfollowtheinstructionon
thescreen.

Ifthesystemboardisbeingreplaced,trytoreadtheECAinformationfromtheoldsystemboardandtransfer
theinformationtothenewsystem.Ifthesystemboardisinoperable,thiswillnotbepossible.

Chapter8.FRUreplacementnotices57

58ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Chapter9.RemovingandreplacingaFRU

ThischapterpresentsdirectionsanddrawingsforuseinremovingandreplacingaFRU.Besuretoobserve
thefollowinggeneralrules:

1.Donottrytoserviceanycomputerunlessyouhavebeentrainedandcertied.Anuntrainedpersonruns
theriskofdamagingparts.

2.BeforereplacinganyFRU,reviewChapter8“FRUreplacementnotices”onpage55.

3.BeginbyremovinganyFRUsthathavetoberemovedbeforethefailingFRU.AnysuchFRUsarelisted
atthetopofthepage.Removethemintheorderinwhichtheyarelisted.

4.FollowthecorrectsequenceinthestepsforremovingtheFRU,asgiveninthedrawingsbythe
numbersinsquarecallouts.

5.WhenturningascrewtoreplaceaFRU,turnitinthedirectionasgivenbythearrowinthedrawing.

6.WhenremovingtheFRU,moveitinthedirectionasgivenbythearrowinthedrawing.

7.T oputthenewFRUinplace,reversetheremovalprocedureandfollowanynotesthatpertainto
replacement.Forinformationaboutconnectingandarranginginternalcables,seeChapter10
“Locations”onpage103

8.WhenreplacingaFRU,usethecorrectscrewasshownintheprocedures.

DANGER

BeforeremovinganyFRU,turnoffthecomputer,unplugallpowercordsfromelectricaloutlets,
removethebatterypack,andthendisconnectanyinterconnectingcables.

.

Attention:AfterreplacingaFRU,donotturnonthecomputeruntilyouhavemadesurethatallscrews,
springs,andothersmallpartsareinplaceandnonearelooseinsidethecomputer.Verifythisbyshaking
thecomputergentlyandlisteningforrattlingsounds.Metallicpartsormetalakescancauseelectrical
shortcircuits.

Attention:Thesystemboardissensitiveto,andcanbedamagedby,electrostaticdischarge.Before
touchingit,establishpersonalgroundingbytouchingagroundpointwithonehandorbyusingan
electrostaticdischarge(ESD)strap(P/N6405959).

©CopyrightLenovo2011

59

BeforeservicingThinkPadT520,T520i,andW520

Table9.RemovalstepsofSIMcard

SomemodelsoftheThinkPadT520,T520i,andW520youareservicingmighthavetheSIMcardthatthecustomer
hasinstalled.

IfthecomputeryouareservicinghastheSIMcard,removeitbeforeyoustarttheservicing.

ToremovetheSIMcard,youneedtoremovethebatterypackrst.(See“1010Batterypack”onpage60

Afteryounishtheservicing,makesurethatyouinsertthecardbackintotheslotrmly.

1010Batterypack

Importantnoticeforreplacingabatterypack:

ThinkVantageT oolboxhaveanautomaticbatterydiagnosticthatdeterminesifthebatterypackisdefective.
AbatterypackFRUshouldnotbereplacedunlessthisdiagnosticshowsthatthebatteryisdefective.

.)

Theonlyexceptiontothisisifthebatterypackisphysicallydamagedoracustomerisreportingapossible
safetyissue.

IfThinkVantageT oolboxisnotinstalledinthecomputer,thecustomershoulddownloadthisprogram
beforeanon-physicallydamagedbatterypackisreplaced.Notethataphysicallydamagedbatterypack
isnon-warrantyreplacement.

Table10.Removalstepsofbatterypack

DANGER

Useonlythebatteryspeciedinthepartslistforyourcomputer.Anyotherbatterycouldigniteorexplode.

Unlockthebatterylatch1.Holdingthebatterylatchintheunlockedposition2,removethebatterypackin
thedirectionshownbyarrow3.

60ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table10.Removalstepsofbatterypack(continued)

3

21

Wheninstalling:Installthebatterypackintheslot,andthenmakesurethatthebatterylatchisinthelockedposition.

1020SerialUltrabayEnhanceddeviceortravelbezel

Foraccess,removethisFRU:

•“1010Batterypack”onpage60

Table11.RemovalstepsofSerialUltrabayEnhanceddeviceortravelbezel

Holdingthebaylocklatchintheunlockedposition1,slidethebayejectlatch2,andthenpullouttheSerial
UltrabayEnhanceddeviceorthetravelbezelinthedirectionshownbyarrow3.

Chapter9.RemovingandreplacingaFRU61

Table11.RemovalstepsofSerialUltrabayEnhanceddeviceortravelbezel(continued)

3

2

1

1030DIMMslotcover

Foraccess,removethisFRU:

•“1010Batterypack”onpage60

Table12.RemovalstepsofDIMMslotcover

Note:Loosenthescrews1,butdonotremovethem.

62ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table12.RemovalstepsofDIMMslotcover(continued)

1

2

1040DIMM(bottomslot)

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

Chapter9.RemovingandreplacingaFRU63

Table13.RemovalstepsofDIMM(bottomslot)

1

1

2

ForThinkPadT520andT520i:

64ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table13.RemovalstepsofDIMM(bottomslot)(continued)

1

1

2

a b

ForThinkPadW520:

Note:IfonlyoneDIMMisusedonthecomputeryouareservicing,thecardmustbeinstalledinSLOT-0a,but

notinSLOT -2

Wheninstalling:InsertthenotchedendoftheDIMMintothesocket.PresstheDIMMrmly,andpivotituntilit
snapsintotheplace.Makesurethatitisrmlyxedintheslotanddoesnotmoveeasily.

1050Harddiskdriveslotcover,harddiskdrive(HDD)andHDDrubber

b.

railsorsolidstatedrive(SSD)andstorageconverter

Foraccess,removethisFRU:

•“1010Batterypack”onpage60

Attention:

•Donotdropthedriveorapplyanyphysicalshocktoit.Thedriveissensitivetophysicalshock.
Improperhandlingcancausedamageandpermanentlossofdata.

•Beforeremovingthedrive,havetheusermakeabackupcopyofalltheinformationonitifpossible.

•Neverremovethedrivewhilethesystemisoperatingorisinsuspendmode.

Chapter9.RemovingandreplacingaFRU65

Table14.Removalstepsofharddiskdriveslotcover,HDDandHDDrubberrailsorSSDandstorageconverter

2

1

3

4

4

Note:Loosenthescrew1,butdonotremoveit.

Table15.RemovalstepsofHDDandHDDrubberrails

66ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table16.RemovalstepsofSSDandSSDspacers

4

4

1

1

Wheninstalling:MakesurethattheSSDconnectororHDDconnectorisattachedrmly.

1060Keyboard

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

Table17.Removalstepsofkeyboard

StepScrew(quantity)Color

1

M2×14mm,wafer-head,nylon-coated(2)

Black0.181Nm

Chapter9.RemovingandreplacingaFRU67

Torque

(1.85kgfcm)

Table17.Removalstepsofkeyboard(continued)

2

3

4

1.Pushdownthekeyboardalittletowardthearrow2untilthefrontedgeofthekeyboardisdetachedfrom

thekeyboardbezel.

2.Liftthekeyboardalittleinthedirectionshownbyarrow3,andthendetachtheconnector4.

Wheninstallingthekeyboard,doasfollows:

68ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table18.Installationstepsofkeyboard

1

a

a

1.Attachthekeyboardconnector1.

2.Attachthekeyboardsothatthekeyboardedgesaareundertheframeasshowninthisgure.

Chapter9.RemovingandreplacingaFRU69

Table18.Installationstepsofkeyboard(continued)

b

b

b

3.Gentlypressthekeyswithyourthumbsandtrytoslidethekeyboardtowardyou.

4.Makesurethatthefrontsideofthekeyboard(b)ishousedrmly.

5.Securethekeyboardbytighteningthescrewsfromthebottomsideofthecomputer.

1070DIMM(upperslot)

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

70ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table19.RemovalstepsofDIMM(upperslot)

1

1

2

a

b

Note:ForThinkPadW520,ifonlyoneDIMMisusedonthecomputeryouareservicing,thecardmustbeinstalledin
SLOT -0

Wheninstalling:InsertthenotchedendoftheDIMMintothesocket.PresstheDIMMrmly,andpivotituntilit
snapsintotheplace.Makesurethatitisrmlyxedintheslotanddoesnotmoveeasily.

a,butnotinSLOT -2b.

1080PCIExpressMiniCardforwirelessLAN

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

Chapter9.RemovingandreplacingaFRU71

Table20.RemovalstepsofPCIExpressMiniCardforwirelessLAN

1

1

1

3

2

Instep1,unplugthejacksbyusingtheantennaRFconnectorremovaltool(P/N:08K7159)orpicktheconnectors
withyourngersandgentlyunplugthemindirectionofthearrow.

Note:Somemodelsmighthaveonlytwoantennacablesinstep

1.

StepScrew(quantity)Color

2

M2×3mm,wafer-head,nylon-coated(1)Silver

72ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Torque

0.181Nm
(1.85kgfcm)

Table20.RemovalstepsofPCIExpressMiniCardforwirelessLAN(continued)

4

Wheninstalling:

•InmodelswithwirelessLANcardthathastwoantennaconnectors,plugthegraycableintothejacklabeled
MAINorM,andtheblackcableintothejacklabeledAUXorAonthecard.Ifthecomputeryouareservicinghas
threecables,putthewhitecableinthecableprotectiontubeasshowninthisgure.

•InmodelswithwirelessLANcardthathasthreeantennaconnectors,plugthegraycable(MAIN)intothejack
labeledTR1,thewhitecable(3rd)intojacklabeledROorTR3,andtheblackcable(AUX)intojacklabeled

TR2onthecard.

1090PCIExpressMiniCardforwirelessWAN

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

Chapter9.RemovingandreplacingaFRU73

Table21.RemovalstepsofPCIExpressMiniCardforwirelessWAN

1

1

3

2

Instep1,unplugthejacksbyusingtheantennaRFconnectorremovaltool(P/N:08K7159)orpicktheconnectors
withyourngersandgentlyunplugthemindirectionofthearrow.

StepScrew(quantity)Color

2

M2×3mm,wafer-head,nylon-coated(1)Silver

74ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Torque

0.181Nm
(1.85kgfcm)

Table21.RemovalstepsofPCIExpressMiniCardforwirelessWAN(continued)

4

1

2

Note:PlugtheorangecableintothejacklabeledMAIN,andthebluecableintothejacklabeledAUXonthecard.

1100Keyboardbezelassembly

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

Attention:Beforeremovingthekeyboardbezelassembly,makesurethatyouhaveremovedExpressCard
blankbezeloranycardintheslot.

Table22.RemovalstepsofExpressCardblankbezelorExpressCard

WhenyoupresstheExpressCardblankbezelorExpressCard1,itpopsout2.

Chapter9.RemovingandreplacingaFRU75

Table22.RemovalstepsofExpressCardblankbezelorExpressCard(continued)

1

2

2

2

1

1

1

2

2

Wheninstalling:Makesurethatthebezelorthecardiscorrectlyorientedasshowninthisgure.

Table23.Removalstepsofkeyboardbezelassembly

Note:Thespeakerassemblyisattachedtothekeyboardbezel.

StepScrew(quantity)Color

1

M2×4mm,bind-head,nylon-coated(4)

Black0.181Nm

Torque

(1.85kgfcm)

2

M2×14mm,bind-head,nylon-coated(7)

Black0.181Nm

(1.85kgfcm)

76ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table23.Removalstepsofkeyboardbezelassembly(continued)

4

3

7

6

5

5

6

1110Bluetoothdaughtercard(BDC-3.0)

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1180Basecoverassembly”onpage89

•“1060Keyboard”onpage67

•“1100Keyboardbezelassembly”onpage75

Chapter9.RemovingandreplacingaFRU77

Table24.RemovalstepsofBDC-3.0

2

1

StepScrew(quantity)Color

1

Wheninstalling:Makesurethattheconnectorisattachedrmly.

M2×3mm,wafer-head,nylon-coated(1)Silver

1120Backupbattery

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

•“1100Keyboardbezelassembly”onpage75

DANGER

Useonlythebatteryspeciedinthepartslistforyourcomputer.Anyotherbatterycouldignite
orexplode.

Torque

0.181Nm
(1.85kgfcm)

78ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table25.Removalstepsofbackupbattery

1

2

Wheninstalling:Makesurethatthebatteryconnectorisattachedrmly.

1130SmartCardorSmartCarddummyspacer

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

•“1100Keyboardbezelassembly”onpage75

Chapter9.RemovingandreplacingaFRU79

Table26.RemovalstepsofSmartCard

1

4

3

3

1

2

6

5

5

StepScrew(quantity)Color

3

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

Torque

0.181Nm
(1.85kgfcm)

80ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table27.Removalstepsofdummycardandspacer

2

3

1

1

StepScrew(quantity)Color

1

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

Torque

0.181Nm
(1.85kgfcm)

1140Speakerassembly

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

•“1100Keyboardbezelassembly”onpage75

Chapter9.RemovingandreplacingaFRU81

Table28.Removalstepsofspeakerassembly

1

1

1

1

3

2

2

4

4

4

4

4

5

5

5

5

5

StepScrew(quantity)Color

1

M2×3mm,wafer-head,nylon-coated(4)Silver

Torque

0.181Nm
(1.85kgfcm)

Wheninstalling:Makesurethatthespeakerconnectorisattachedrmly.Thenroutethecablesandsecure
themproperlyasshowninthegureabove.

82ThinkPadT520,T520i,andW520HardwareMaintenanceManual

1150Thermalmodule

1

2

3b

3a

3c

3d

4

4

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

•“1100Keyboardbezelassembly”onpage75

•“1140Speakerassembly”onpage81

Table29.Removalstepsofthermalmodule

Wheninstalling:Makesurethattheconnectorsareattachedrmly.

Note:Loosenthescrews3ato3dinorder,butdonotremovethem.Somemodelsdonothavescrews4.

Forthosemodels,skipstep4.

Chapter9.RemovingandreplacingaFRU83

Table29.Removalstepsofthermalmodule(continued)

6

a

a

b

b

b

Wheninstalling:Beforeyouattachthefanassemblytothecomputer,applythermalgrease,atanamountof0.2
grams,onthepartsmarkedaasinthefollowinggures.Eithertoomuchortoolessapplicationofgreasecan
causeathermalproblemduetoimperfectcontactwithacomponent.ForthenewCPUthermaldevice/fan,you
needtopeelthethinlmofffromtherubbersmarkedb.

ForSwitchableGraphicsmodels:

84ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table29.Removalstepsofthermalmodule(continued)

a

a

a

ForIntegratedGraphicsmodels:

ForWorkstationmodels:

1160CPU

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1060Keyboard”onpage67

•“1100Keyboardbezelassembly”onpage75

•“1140Speakerassembly”onpage81

•“1150Thermalmodule”onpage83

Attention:CPUisextremelysensitive.WhenyouservicetheCPU,avoidanykindofroughhandling.

Chapter9.RemovingandreplacingaFRU85

Table30.RemovalstepsofCPU

2

1 a

Rotatetheheadofthescrewinthedirectionshownbyarrow1toreleasethelock;thenremovetheCPU2.

Wheninstalling:PlacetheCPUontheCPUsocket,andthenrotatetheheadofthescrewinthedirectionshown
byarrowatosecuretheCPU.

1170LCDunit

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1030DIMMslotcover”onpage62

•“1050Harddiskdriveslotcover,harddiskdrive(HDD)andHDDrubberrailsorsolidstatedrive(SSD)
andstorageconverter”onpage65

•“1060Keyboard”onpage67

•“1080PCIExpressMiniCardforwirelessLAN”onpage71

•“1090PCIExpressMiniCardforwirelessWAN”onpage73

•“1100Keyboardbezelassembly”onpage75

86ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table31.RemovalstepsofLCDunit

2

2

1

1

3

3

StepScrewcapScrew(quantity)Color

1

2—

M2.5×6mm,wafer-head,nylon-coated(2)

M2.5×6mm,wafer-head,nylon-coated(2)

Torque

Black0.392Nm

(4.0kgfcm)

Black0.392Nm

(4.0kgfcm)

StepScrew(quantity)Color

3

M2.5×6mm,wafer-head,nylon-coated(2)

Black0.392Nm

Torque

(4.0kgfcm)

Chapter9.RemovingandreplacingaFRU87

Table31.RemovalstepsofLCDunit(continued)

4

4

4

5

5

6

8

7

7

9

StepScrew(quantity)Color

7

M2×4mm,wafer-head,nylon-coated(2)

Black0.181Nm

Torque

(1.85kgfcm)

Wheninstalling:

•MakesurethatyouattachtheLCDconnectorrmly.

•Makesurethatyouroutethecablesrmlyandtapeupintheproperpositionsasshowninthisgure.

•Whenyouroutethecables,makesurethattheyarenotsubjectedtoanytension.T ensioncouldcausethecables
tobedamagedbythecableguides,orawiretobebroken.

88ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Table31.RemovalstepsofLCDunit(continued)

10

10

1180Basecoverassembly

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1020SerialUltrabayEnhanceddeviceortravelbezel”onpage61

•“1030DIMMslotcover”onpage62

•“1050Harddiskdriveslotcover,harddiskdrive(HDD)andHDDrubberrailsorsolidstatedrive(SSD)

andstorageconverter”onpage65

•“1060Keyboard”onpage67

•“1080PCIExpressMiniCardforwirelessLAN”onpage71

•“1090PCIExpressMiniCardforwirelessWAN”onpage73

•“1100Keyboardbezelassembly”onpage75

•“1110Bluetoothdaughtercard(BDC-3.0)”onpage77

•“1120Backupbattery”onpage78

•“1130SmartCardorSmartCarddummyspacer”onpage79

•“1140Speakerassembly”onpage81

•“1150Thermalmodule”onpage83

•“1170LCDunit”onpage86

Chapter9.RemovingandreplacingaFRU89

Table32.Removalstepsofbasecoverassembly

2

2

3

1

5

4

StepScrew(quantity)Color

1

2

3

M2×3mm,wafer-head,nylon-coated(1)Silver

M2×14mm,wafer-head,nylon-coated(2)

M2×4mm,wafer-head,nylon-coated(1)

Black0.181Nm

Black0.181Nm

Torque

0.181Nm
(1.85kgfcm)

(1.85kgfcm)

(1.85kgfcm)

Note:Applyinglabelstothebasecover

ThenewbasecoverFRUisshippedwithakitcontaininglabelsofseveralkinds.Whenyoureplacethe
basecover,youneedtoapplythefollowinglabels:

13

14

15

FCClabel

Serialnumberlabel

Homologationlabel

Followinglabelsneedtobepeeledofffromtheoldbasecover,andneedtobeputonthenewbasecover.

1

2

3

90ThinkPadT520,T520i,andW520HardwareMaintenanceManual

Windowslicenselabel(COA)

Informationlabel

IMEIbarcodelabel

4

2005, 2010

1

3

5

16

15

14

13

4

69 8 7

12

11

10

2

5

6

7

8

9

10

11

12

16

Macaddresslabel

Vodafonelabel

Israellabel

Modemlabel(onlyforPRCmodels)

ChinawirelessWANlabel

ModemAMOMlabel(onlyforBrazil)

Bluetoothlabel(onlyforBrazil)

Wirelesscardlabel(onlyforBrazil)

SIRIMlabel

Assettaglabel

Forsomemodels,youalsoneedtoapplyoneortwoFCClabels.Checktheoldbasecover;ifithasoneor
twoFCClabels,ndduplicatesoftheminthelabelkitandapplythemtothenewbasecover.

Forthelocationofeachlabel,referthefollowinggure:

1190I/Osubcard

Note:TheI/OsubcardcontainsanEthernetportandaUSBport.

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1020SerialUltrabayEnhanceddeviceortravelbezel”onpage61

•“1030DIMMslotcover”onpage62

•“1050Harddiskdriveslotcover,harddiskdrive(HDD)andHDDrubberrailsorsolidstatedrive(SSD)

andstorageconverter”onpage65

•“1060Keyboard”onpage67

•“1080PCIExpressMiniCardforwirelessLAN”onpage71

•“1090PCIExpressMiniCardforwirelessWAN”onpage73

Chapter9.RemovingandreplacingaFRU91

•“1100Keyboardbezelassembly”onpage75

2

1

1

•“1110Bluetoothdaughtercard(BDC-3.0)”onpage77

•“1120Backupbattery”onpage78

•“1130SmartCardorSmartCarddummyspacer”onpage79

•“1140Speakerassembly”onpage81

•“1150Thermalmodule”onpage83

•“1170LCDunit”onpage86

•“1180Basecoverassembly”onpage89

Table33.RemovalstepsofI/Osubcard

StepScrew(quantity)Color

1

Wheninstalling:Makesurethattheconnectorisattachedrmly.

M2×7mm,wafer-head,nylon-coated(2)Silver

Torque

0.181Nm
(1.85kgfcm)

1200Systemboardassembly,magnesiumstructureframe,andmodem daughtercard(MDC)

Note:ThesystemboarddoesnotcontaintheEthernetport,theacpowerconnector,andthemodemport.

FortheEthernetport,see“1190I/Osubcard”onpage91.Theacpowerconnectorisinstalledonthe
magnesiumstructureframe.IfthecomputerisequippedwithanMDC,themodemportisalsoinstalledon
themagnesiumstructureframe.

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage60

•“1020SerialUltrabayEnhanceddeviceortravelbezel”onpage61

•“1030DIMMslotcover”onpage62

•“1040DIMM(bottomslot)”onpage63

•“1050Harddiskdriveslotcover,harddiskdrive(HDD)andHDDrubberrailsorsolidstatedrive(SSD)
andstorageconverter”onpage65

•“1060Keyboard”onpage67

•“1070DIMM(upperslot)”onpage70

•“1080PCIExpressMiniCardforwirelessLAN”onpage71

•“1090PCIExpressMiniCardforwirelessWAN”onpage73

92ThinkPadT520,T520i,andW520HardwareMaintenanceManual