Lenovo THINKPAD L412 Hardware Maintenance Manual

HardwareMaintenanceManual

ThinkPadL412andL512

Note

Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformationunder

AppendixA“Notices”onpage157.

FifthEdition(April2013)

©CopyrightLenovo2011,2013.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration

“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.

Contents

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

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

Chapter3.Generalcheckout.....27

Whattodorst..............27

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

SystemsupportingtheLenovoThinkVantage

ToolboxprogramandthePC-DoctorforDOS

diagnosticsprogram..........28

SystemsupportingtheLenovodiagnostics

programs...............33

Powersystemcheckout...........35

Checkingtheacadapter.........35

Checkingoperationalcharging......36

Checkingthebatterypack........36

Checkingthebackupbattery.......37

Chapter4.Relatedservice

information..............39

RestoringthefactorycontentsbyusingRecovery

DiscSet.................39

Passwords................40

Power-onpassword...........40

Hard-diskpassword...........40

Supervisorpassword..........41

Howtoremovethepower-onpassword...41

Howtoremovethehard-diskpassword...41

Powermanagement............42

Screenblankmode...........42

Sleep(standby)mode..........42

Hibernationmode...........43

Symptom-to-FRUindex...........44

Numericerrorcodes..........44

Errormessages............46

No-beepsymptoms...........46

LCD-relatedsymptoms.........47

Intermittentproblems..........47

Undeterminedproblems.........48

Chapter5.Statusindicators.....49

Chapter6.Fnkeycombinations...51

Chapter7.FRUreplacement

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

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

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

Restoringtheserialnumberofthesystem

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

RetainingtheUUID...........57

ReadingorwritingtheECAinformation...57

Chapter8.Removingandreplacinga

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

1010Batterypack.............59

1020ExpressCardblankbezelandMediaCard

blankbezel................61

1030Opticaldriveortravelcover.......62

1040Thermalcover.............63

1050Harddiskdrive(HDD)assembly.....64

1060DIMM................65

1070Fanassembly.............66

1080CPU................69

1090SIMslotcover............70

1100WirelessWANslotcoverandPCIExpress

MiniCardforwirelessWAN..........72

1110Palmrestassemblywithcables......74

1120PCIExpressMiniCardforwirelessLAN..76

1130Backupbattery............78

1140Bluetoothdaughtercard(BDC-2).....78

1150MediaCardReaderslotboardandMedia

CardReadercableassembly.........79

1160Keyboard..............81

1170Keyboardbezel............83

©CopyrightLenovo2011,2013

i

1180LCDunit...............85

1190Topshieldingassembly.........89

1200Systemboardassembly.........91

1210USBconnectorboardandUSBcable

assembly.................96

1220DC-incableandbasecover.......98

2010LCDfrontbezel............102

2020Speakerassembly...........103

2030Integratedcamera...........104

2040Antennaassembly...........104

2050Hinges,LCDpanel,LCDcable,andLCDrear

coverassembly..............106

Chapter9.Locations........111

Frontview................112

Rearview.................113

Bottomview...............113

Chapter10.Partslist........115

Overall..................116

LCDFRUs................138

Keyboard.................144

Miscellaneousparts............145

acpoweradapters.............146

Powercords...............147

Recoverydiscs..............148

WindowsXPProfessional(32bit)DVDs...148

WindowsVistaHomeBasic(32bit)DVDs..149

WindowsVistaBusiness(32bit)DVDs...149

Windows7HomeBasic(32bit)DVDs....150

Windows7HomePremium(32bit)DVDs..151

Windows7HomePremium(64bit)DVDs..151

Windows7Professional(32bit)DVDs....152

Windows7Professional(64bit)DVDs....153

WindowsStarter(32bit)DVDs.......154

Windows7Ultimate(32bit)DVDs.....155

Windows7Ultimate(64bit)DVDs.....155

Commonservicetools...........156

AppendixA.Notices.........157

Electronicemissionsnotices.........158

Trademarks................158

iiHardwareMaintenanceManual

Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad

®

Notebookproducts.

ThinkPadL412MT0530,0553,0585,0591,4403,and4404

ThinkPadL512MT2550,2597,2598,2599,4444,and4447

Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.

Important:

ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPadNotebook

products.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.

BeforeservicingaThinkPadNotebookproduct,besuretoreadalltheinformationunderChapter1“Safety

information”onpage1andChapter2“Importantserviceinformation”onpage23.

©CopyrightLenovo2011,2013

iii

ivHardwareMaintenanceManual

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.

©CopyrightLenovo2011,2013

1

Electricalsafety

Observethefollowingruleswhenworkingonelectricalequipment.

Important:

Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterial

thatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.

Manycustomershave,neartheirequipment,rubberoormatsthatcontainsmallconductivebersto

decreaseelectrostaticdischarges.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

2HardwareMaintenanceManual

Thispracticeensurescorrectgroundingoftheunits.

•Ifanelectricalaccidentoccurs:

–Usecaution;donotbecomeavictimyourself.

–Switchoffpower.

–Sendanotherpersontogetmedicalaid.

Safetyinspectionguide

Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach

machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians

frominjury.Thisguideaddressesonlythoseitems.Youshouldusegoodjudgmenttoidentifypotential

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.

Chapter1.Safetyinformation3

Notes:

1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.

2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.

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

4HardwareMaintenanceManual

BeforethecomputerispoweredonafterFRUreplacement,makesureallscrews,springs,andothersmall

partsareinplaceandarenotleftlooseinsidethecomputer.Verifythisbyshakingthecomputerandlistening

forrattlingsounds.Metallicpartsormetalakescancauseelectricalshorts.

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

Chapter1.Safetyinformation5

Thoughthemainbatterieshavelowvoltage,ashortedorgroundedbatterycanproduceenoughcurrentto

burnpersonnelorcombustiblematerials.

DANGER

UnlesshotswapisallowedfortheFRUbeingreplaced,doasfollowsbeforeremovingit:poweroffthe

computer,unplugallpowercordsfromelectricaloutlets,removethebatterypack,anddisconnectany

interconnectingcables.

6HardwareMaintenanceManual

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

Chapter1.Safetyinformation7

Opacotedabateriacontémumapequenaquantidadedeníquel.Nãoodesmonte,jogue-onofogoouna

água,oudeixe-oentraremcurto-circuito.Descarteopacotedabateriaconformerequeridopelasleisou

regulamentoslocais.Usesomenteabaterianasparteslistadasapropriadasaosubstituiropacotedabateria.

Ousodeumabateriaincorretapoderesultaremcombustãoouexplosãodabateria.

PERIGO

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

8HardwareMaintenanceManual

Avantderemettrel'ordinateursoustensionaprèsremplacementd'uneunitéenclientèle,vériezquetousles

ressorts,visetautrespiècessontbienenplaceetbienxées.Pourcefaire,secouezl'unitéetassurez-vous

qu'aucunbruitsuspectneseproduit.Despiècesmétalliquesoudescopeauxdemétalpourraientcauser

uncourt-circuit.

DANGER

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.

Chapter1.Safetyinformation9

DANGER

Bienquelevoltagedesbatteriesprincipalessoitpeuélevé,lecourt-circuitoulamiseàlamassed'une

batteriepeutproduiresufsammentdecourantpourbrûlerdesmatériauxcombustiblesoucauserdes

brûlurescorporellesgraves.

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.BeimErsetzenderBatterienurBatteriendesTypsverwenden,derinderErsatzteillisteaufgeführt

ist.DerEinsatzfalscherBatterienkannzuEntzündungoderExplosionführen.

VORSICHT

10HardwareMaintenanceManual

DieSystembatterieisteineLithiumbatterie.Siekannsichentzünden,explodierenoderschwereVerbrennungen

hervorrufen.BatteriendiesesTypsdürfennichtaufgeladen,zerlegt,über100°Cerhitztoderverbranntwerden.

AuchdarfihrInhaltnichtmitWasserinVerbindunggebrachtoderderzurrichtigenPolungangebrachte

Verbindungssteckerentferntwerden.BeiderEntsorgungdieörtlichenBestimmungenfürSondermüll

beachten.BeimErsetzenderBatterienurBatteriendesTypsverwenden,derinderErsatzteillisteaufgeführt

ist.DerEinsatzfalscherBatterienkannzuEntzündungoderExplosionführen.

VORSICHT

DieLeuchtstoffröhreimLCD-BildschirmenthältQuecksilber.BeiderEntsorgungdieörtlichenBestimmungen

fürSondermüllbeachten.DerLCD-BildschirmbestehtausGlasundkannzerbrechen,wennerunsachgemäß

behandeltwirdoderderComputeraufdenBodenfällt.WennderBildschirmbeschädigtistunddiedarin

bendlicheFlüssigkeitinKontaktmitHautundAugengerät,solltendiebetroffenenStellenmindestens15

MinutenmitWasserabgespültundbeiBeschwerdenanschließendeinArztaufgesuchtwerden.

VORSICHT

AusSicherheitsgründendieKunststoffabdeckung,diedenunterenTeilderSpannungswandlerplatineumgibt,

nichtentfernen.

VORSICHT

ObwohlHauptbatterieneineniedrigeSpannunghaben,könnensiedochbeiKurzschlußoderErdunggenug

Stromabgeben,umbrennbareMaterialienzuentzündenoderVerletzungenbeiPersonenhervorzurufen.

VORSICHT

WenneinAustauschderFRUbeilaufendemBetriebnichterlaubtist,gehenSiebeimAustauschderFRUwie

folgtvor:SchaltenSiedenComputeraus,ziehenSiealleNetzkabelvondenNetzsteckdosenab,entfernen

SiedenAkkuundziehenSieallemiteinanderverbundenenKabelab.

Chapter1.Safetyinformation11

12HardwareMaintenanceManual

Chapter1.Safetyinformation13

14HardwareMaintenanceManual

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Lenovo THINKPAD L412 Hardware Maintenance Manual

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