Lenovo T520i, T520, W520 User Manual

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

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

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