Lenovo ThinkCentre M900z 10F2 Owner's manual

ThinkCentreM900z
HardwareMaintenanceManual
MachineTypes:10F2,10F3,10F4,and10F5

Note:Beforeusinthisinformationandtheproductitsupports,besuretoreadandunderstandtheChapter
1“Readthisfirst:Importantsafetyinformation”onpae1andAppendixF“Notices”onpae135.
SecondEdition(November2015)
©Copyrightenovo2015.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.

Contents
Aboutthismanual............v
Chapter1.Readthisfirst:Important
safetyinformation............1
Powercordsandpoweradapters........1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionuide............4
Handlinelectrostaticdischare-sensitive
devices..................4
Groundinrequirements............5
Safetynotices(multi-linualtranslations).....5
Chapter2.Productoverview.....27
Hardwarelocations.............27
Frontview...............27
Rearview...............29
Computercomponents.........31
MajorFRUsandCRUs..........31
Partsonthesystemboard........35
Machinetypeandmodellabel.......36
Features.................36
Specifications...............39
Prorams.................39
Accessinaproramonyourcomputer...39
Installinaproramthatisreadytobe
installed...............40
AnintroductiontoLenovoprorams....40
Chapter3.Usingyourcomputer...43
Adjustinthecomputerstand.........43
Adjustinthetilt-onlymonitorstand....43
AdjustintheUltraFlexIIStand......44
Reisterinyourcomputer..........46
Settinthecomputervolume.........46
AddinanicontotheWindowsnotificationarea.46
Usinadisc................47
Guidelinesaboutusintheopticaldrive...47
Handlinandstorinadisc........47
Playinandremovinadisc.......47
Recordinadisc............48
Connectintoanetwork...........48
ConnectintoanEthernetLAN......48
ConnectintoawirelessLAN.......49
ConnectintoaBluetooth-enableddevice..49
Usinthesinle-touchormulti-touchfeature...49
Chapter4.Youandyourcomputer..51
Arraninyourworkspace..........51
Glareandlihtin............51
Aircirculation.............51
Electricaloutletlocationsandcablelenths.51
Comfort...............51
Accessibilityinformation...........52
Cleaninyourcomputer...........55
Maintenance...............55
Basicmaintenancetips.........55
Goodmaintenancepractices.......56
Keepinyourcomputercurrent......56
Movinyourcomputer...........57
Chapter5.Security..........59
Lockinyourcomputer...........59
AttachinaKensinton-stylecablelock...60
Viewinandchaninsecuritysettinsinthe
SetupUtilityproram............60
Preventinunauthorizedaccesstoyour
computer.................60
Usinfinerprintauthentication........61
Usinandunderstandinfirewalls.......61
Protectindataaainstviruses........61
ComputraceAentsoftwareembeddedin
firmware.................62
TrustedPlatformModule(TPM)........62
Chapter6.Advancedconfiguration..63
UsintheSetupUtilityproram........63
StartintheSetupUtilityproram.....63
Enablinordisablinadevice.......63
EnablinordisablintheAutomaticPowerOn
features...............63
EnablinordisablinErPLPScompliance
mode................64
ChaninICEPerformanceMode.....64
EnablinordisablintheICEThermalAlert
feature................65
EnablinordisablintheConfiuration
ChaneDetectionfeature........65
Usinthecoverpresenceswitch......65
UsinBIOSpasswords.........66
Selectinastartupdevice........67
ExitintheSetupUtilityproram......67
UpdatintheBIOS.............68
©CopyrihtLenovo2015i

Chapter7.Troubleshooting,
diagnostics,andrecovery......69
Basicprocedureforresolvincomputer
problems.................69
Troubleshootin..............69
Startupproblems............69
Audioproblems............70
CDproblems.............71
DVDproblems.............71
Intermittentproblems..........72
Storaedriveproblems.........72
Screenproblems............73
Networkinproblems..........73
Performanceproblems..........75
Serialconnectorcannotbeaccessed....77
USBdeviceproblems..........77
Softwareanddriverproblems.......77
Dianostics................78
LenovoSolutionCenter.........78
UEFIdianosticproram.........78
Recoveryinformation............79
RecoveryinformationforWindows7....79
RecoveryinformationforWindows10....80
Chapter8.Servicecheckoutand
symptom-to-FRUindex........81
Servicecheckout..............81
Problemdeterminationtips........81
Symptom-to-FRUindex...........82
Harddiskdrivebooterror........82
Powersupplyproblems.........83
Beepsymptoms............83
POSTerrorcodes............83
Miscellaneouserrorconditions......84
Undeterminedproblems.........86
Chapter9.Installingorreplacing
hardware...............87
Handlinstatic-sensitivedevices.......87
Installinorreplacinhardware........87
Installinexternaloptions........87
Replacinthecomputerstand.......88
Removinthebackcover........90
Replacinthememorymoduleshield....91
Replacinamemorymodule.......92
Replacinthestoraedrive........93
Replacinthecomputercover.......95
Replacinthesystemboardshield.....98
ReplacintheVESAmountbracket.....99
Replacinthepowersupplyassembly...101
Replacintheinternalspeakers......102
Replacinthethermalsensor.......103
Replacinthesystemfan.........104
Replacintheinteratedcamera......105
ReplacintheWi-Fiantennas.......106
ReplacintheWi-Ficard.........107
Replacinthecoin-cellbattery......108
Replacinthecardreader........110
Replacintheserialconnectormodule...110
Replacintheheatsink.........111
Replacinthesystemboard.......112
Replacinthemicroprocessor.......114
Completinthepartsreplacement.....116
Chapter10.Gettinginformation,help,
andservice.............117
Informationresources............117
Accessintheuseruideinvarious
lanuaes...............117
Windowshelpsystem..........117
Safetyandwarranty...........117
LenovoWebsite............117
LenovoSupportWebsite.........118
Frequentlyaskedquestions........118
Helpandservice..............118
Callinforservice............118
Usinotherservices..........119
Purchasinadditionalservices......119
AppendixA.Regulatory
information.............121
Exportclassificationnotice..........121
Electronicemissionsnotices.........121
FederalCommunicationsCommission
DeclarationofConformity........121
Eurasiancompliancemark..........123
Brazilaudionotice.............123
Mexicowireless-radiocomplianceinformation..123
Taiwanvisionprecautionnotice........123
Additionalreulatoryinformation.......123
AppendixB.WEEEandrecycling
information.............125
ImportantWEEEinformation.........125
RecyclininformationforJapan........125
RecyclininformationforBrazil........126
BatteryrecyclininformationforTaiwan.....126
BatteryrecyclininformationfortheEuropean
Union..................126
AppendixC.RestrictionofHazardous
SubstancesDirective(RoHS)....129
EuropeanUnionRoHS...........129
iiThinkCentreM900zHardwareMaintenanceManual

TurkishRoHS...............129
UkraineRoHS...............129
IndiaRoHS................129
ChinaRoHS................130
AppendixD.ChinaEnergyabel..131
AppendixE.ENERGYSTARmodel
information.............133
AppendixF.Notices.........135
Trademarks................136
©CopyrihtLenovo2015iii

ivThinkCentreM900zHardwareMaintenanceManual

Aboutthismanual
ThismanualprovidesserviceandreferenceinformationforLenovo®computerslistedonthefrontcover.
Usethismanualalonwiththeadvanceddianosticteststotroubleshootproblems.
Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithLenovo
computers.Usethismanualalonwiththeadvanceddianosticteststotroubleshootproblemseffectively.
BeforeservicinaLenovocomputer,besuretoreadandunderstandChapter1“Readthisfirst:Important
safetyinformation”onpae1.
©CopyrihtLenovo2015v

viThinkCentreM900zHardwareMaintenanceManual

Chapter1.Readthisfirst:Importantsafetyinformation
Thischaptercontainsthesafetyinformationthatyoumustbefamiliarwith.
Powercordsandpoweradapters
Useonlythepowercordsandpoweradapterssuppliedbytheproductmanufacturer.Donotusetheac
powercordforotherdevices.
Thepowercordsshallbesafetyapproved.ForGermany,itshallbeH05VV-F,3G,0.75mm2,orbetter.For
othercountries,thesuitabletypesshallbeusedaccordinly.
Neverwrapapowercordaroundapoweradapterorotherobject.Doinsocanstressthecordinwaysthat
cancausethecordtofray,crack,orcrimp.Thiscanpresentasafetyhazard.
Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects.
Protectpowercordandpoweradaptersfromliquids.Forinstance,donotleaveyourpowercordorpower
adapternearsinks,tubs,toilets,oronfloorsthatarecleanedwithliquidcleansers.Liquidscancausea
shortcircuit,particularlyifthepowercordorpoweradapterhasbeenstressedbymisuse.Liquidsalsocan
causeradualcorrosionofpowercordterminalsand/ortheconnectorterminalsonapoweradapter,
whichcaneventuallyresultinoverheatin.
Ensurethatallpowercordconnectorsaresecurelyandcompletelypluedintoreceptacles.
Donotuseanypoweradapterthatshowscorrosionattheacinputpinsorshowssinsofoverheatin(such
asdeformedplastic)attheacinputoranywhereonthepoweradapter.
Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsinsofcorrosionor
overheatinorwherethepowercordappearstohavebeendamaedinanyway.
Generalsafety
Followtheserulestoensureeneralsafety:
•Observeoodhousekeepinintheareaofthemachinesdurinandaftermaintenance.
•Whenliftinanyheavyobject:
1.Ensureyoucanstandsafelywithoutslippin.
2.Distributetheweihtoftheobjectequallybetweenyourfeet.
3.Useaslowliftinforce.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandinorbypushinupwithyourlemuscles;thisactionremovesthestrainfromthe
musclesinyourback.
Attention:
Donotattempttoliftanyobjectsthatweihmorethan16k(35lb)orobjectsthatyouthinkare
tooheavyforyou.
•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.
•Beforeyoustartthemachine,ensurethatotherservicerepresentativesandthecustomer'spersonnelare
notinahazardousposition.
©CopyrihtLenovo20151

•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicin
themachine.
•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.
•Donotwearlooseclothinthatcanbetrappedinthemovinpartsofamachine.Ensurethatyoursleeves
arefastenedorrolledupaboveyourelbows.Ifyourhairislon,fastenit.
•Inserttheendsofyournecktieorscarfinsideclothinorfastenitwithanonconductiveclip,approximately
8centimeters(3inches)fromtheend.
•Donotwearjewelry,chains,metal-frameeyelasses,ormetalfastenersforyourclothin.
Remember:Metalobjectsareoodelectricalconductors.
•Wearsafetylasseswhenyouare:hammerin,drillin,solderin,cuttinwire,attachinsprins,usin
solvents,orworkininanyotherconditionsthatmihtbehazardoustoyoureyes.
•Afterservice,reinstallallsafetyshields,uards,labels,androundwires.Replaceanysafetydevice
thatiswornordefective.
•Reinstallallcoverscorrectlybeforereturninthemachinetothecustomer.
CAUTION:
Hazardousmovingparts.Keepfingersandotherbodypartsaway.
CAUTION:
Beforeyouopenthecomputercover,turnoffthecomputerandwaitseveralminutesuntilthe
computeriscool.
Electricalsafety
CAUTION:
Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.Toavoid
personalinjuryorequipmentdamage,disconnecttheattachedpowercords,telecommunication
systems,networks,andmodemsbeforeyouopenthecomputercovers,unlessinstructedotherwise
intheinstallationandconfigurationprocedures.
Observethefollowinruleswhenworkinonelectricalequipment.
Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkinwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberfloormatsthatcontainsmallconductivefiberstodecreaseelectrostaticdischares.
Donotusethistypeofmattoprotectyourselffromelectricalshock.
2ThinkCentreM900zHardwareMaintenanceManual

•Findtheroomemerencypower-off(EPO)switch,disconnectinswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunpluthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltaes.
•Disconnectallpowerbefore:
–Performinamechanicalinspection
–Workinnearpowersupplies
–RemovinorinstallinFieldReplaceableUnits(FRUs)
•Beforeyoustarttoworkonthemachine,unpluthepowercord.Ifyoucannotunpluit,poweroffthe
wallboxthatsuppliespowertothemachineandlockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowinprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkinwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseelectricalshock.Byobservintheaboverule,
youmaypreventacurrentfrompassinthrouhyourbody.
–Whenusinatester,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor
thattester.
–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromroundssuchas
metalfloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhihvoltaes;theseinstructionsarein
thesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasurinhihvoltaes.
•Reularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpowered-off.
•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistfloors,
nonroundedpowerextensioncables,powersures,andmissinsafetyrounds.
•Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchincancausepersonalinjuryandmachinedamae.
•Donotservicethefollowinpartswiththepoweronwhentheyareremovedfromtheirnormaloperatin
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorenerators
andsimilarunits.(Thispracticeensurescorrectroundinoftheunits.)
•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontoetmedicalaid.
Chapter1.Readthisfirst:Importantsafetyinformation3

Safetyinspectionguide
Theintentofthisinspectionuideistoassistyouinidentifyinpotentiallyunsafeconditionsonthese
products.Eachmachine,asitwasdesinedandbuilt,hadrequiredsafetyitemsinstalledtoprotectusers
andservicepersonnelfrominjury.Thisuideaddressesonlythoseitems.However,oodjudmentshould
beusedtoidentifypotentialsafetyhazardsduetoattachmentoffeaturesoroptionsnotcoveredbythis
inspectionuide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectintheproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltaeontheframecancauseseriousorfatal
electricalshock).
•Explosivehazards,suchasadamaedCRTfaceorbulincapacitor
•Mechanicalhazards,suchaslooseormissinhardware
Theuideconsistsofaseriesofstepspresentedinachecklist.Beinthecheckswiththepoweroff,and
thepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamae(loose,broken,orsharpedes).
2.Power-offthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wireroundconnectorinoodcondition.Useametertomeasurethird-wireround
continuityfor0.1ohmorlessbetweentheexternalroundpinandframeround.
b.Thepowercordshouldbetheappropriatetypeasspecifiedinthepartslistins.
c.Insulationmustnotbefrayedorworn.
4.Removethecover.
5.Checkforanyobviousalterations.Useoodjudmentastothesafetyofanyalterations.
6.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilins,contamination,wateror
otherliquids,orsinsoffireorsmokedamae.
7.Checkforworn,frayed,orpinchedcables.
8.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingelectrostaticdischarge-sensitivedevices
Anycomputerpartcontainintransistorsorinteratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischare(ESD).ESDdamaecanoccurwhenthereisadifferenceincharebetweenobjects.
ToprotectaainstESDdamae,equalizethecharebetweenobjects.Then,themachine,thepart,the
workmat,andthepersonhandlinthepartareallatthesamechare.
Notes:
1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.
WhenhandlinESD-sensitiveparts:
•Keepthepartsinprotectivepackaesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeoplewhilehandlinthepart.
4ThinkCentreM900zHardwareMaintenanceManual

•Weararoundedwriststrapaainstyourskintoeliminatestaticonyourbody.
•Preventthepartfromtouchinyourclothin.Mostclothinisinsulativeandretainsachareeven
whenyouarewearinawriststrap.
•Usetheblacksideofaroundedworkmattoprovideastatic-freeworksurface.Thematisespecially
usefulwhenhandlinESD-sensitivedevices.
•Selectaroundinsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.
Note:TheuseofaroundinsystemisdesirablebutnotrequiredtoprotectaainstESDdamae.
–AttachtheESDroundcliptoanyframeround,roundbraid,orreen-wireround.
–UseanESDcommonroundorreferencepointwhenworkinonadouble-insulatedor
battery-operatedsystem.Youcanusecoaxorconnector-outsideshellsonthesesystems.
–Usetheroundround-pronoftheacpluonac-operatedcomputers.
Groundingrequirements
Electricalroundinofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
roundinoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.
Safetynotices(multi-lingualtranslations)
Thecautionanddanersafetynoticesinthissectionareprovidedinthefollowinlanuaes:
•Enlish
•Arabic
•Brazilian/Portuuese
•Chinese(simplified)
•Chinese(traditional)
•French
•German
•Hebrew
•Italian
•Korean
•Spanish
DANGER
Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.
Toavoidashockhazard:
•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration
ofthisproductduringanelectricalstorm.
•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
Chapter1.Readthisfirst:Importantsafetyinformation5

•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.
•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.
•Neverturnonanyequipmentwhenthereisevidenceoffire,water,orstructuraldamage.
•Disconnecttheattachedpowercords,telecommunicationssystems,networks,andmodems
beforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationandconfiguration
procedures.
•Connectanddisconnectcablesasdescribedinthefollowingtableswheninstalling,moving,or
openingcoversonthisproductorattacheddevices.
ToConnectToDisconnect
1.TurneverythinOFF.
2.First,attachallcablestodevices.
3.Attachsinalcablestoconnectors.
4.Attachpowercordstooutlet.
5.TurndeviceON.
1.TurneverythinOFF.
2.First,removepowercordsfromoutlet.
3.Removesinalcablesfromconnectors.
4.Removeallcablesfromdevices.
CAUTION:
Whenreplacingthelithiumbattery,useonlyPartNumber45C1566oranequivalenttypebattery
recommendedbythemanufacturer.Ifyoursystemhasamodulecontainingalithiumbattery,replace
itonlywiththesamemoduletypemadebythesamemanufacturer.Thebatterycontainslithiumand
canexplodeifnotproperlyused,handled,ordisposedof.Donot:
•Throworimmerseintowater
•Heattomorethan100°C(212°F)
•Repairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations.
CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVD-ROMdrives,fiberopticdevices,ortransmitters)are
installed,notethefollowing:
•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.
•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
mightresultinhazardousradiationexposure.
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:
aserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.
6ThinkCentreM900zHardwareMaintenanceManual

≥18k(37lb)≥32k(70.5lb)≥55k(121.2lb)
CAUTION:
Usesafepracticeswhenlifting.
CAUTION:
Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedevice.Thedevicealsomighthavemorethanonepower
cord.Toremoveallelectricalcurrentfromthedevice,ensurethatallpowercordsaredisconnected
fromthepowersource.
1
2
Chapter1.Readthisfirst:Importantsafetyinformation7

8ThinkCentreM900zHardwareMaintenanceManual

≥18k(37lb)≥32k(70.5lb)≥55k(121.2lb)
1
2
PERIGO
Acorrenteelétricaprovenientedecabosdealimentação,detelefoneedecomunicaçõeséperiosa.
Chapter1.Readthisfirst:Importantsafetyinformation9

Paraevitarriscodechoqueelétrico:
•Nãoconectenemdesconectenenhumcaboouexecuteinstalação,manutençãooureconfiuração
desteprodutoduranteumatempestadecomraios.
•Conectetodososcabosdealimentaçãoatomadaselétricascorretamenteinstaladaseaterradas.
•Todoequipamentoqueforconectadoaesteprodutodeveserconectadoatomadascorretamente
instaladas.
•Quandopossível,utilizeapenasumadasmãosparaconectaroudesconectarcabosdesinal.
•Nuncaliuenenhumequipamentoquandohouverevidênciadefoo,áuaoudanosestruturais.
•Antesdeabrirtampasdedispositivos,desconectecabosdealimentação,sistemasdetelecomunicação,
redesemodemsconectados,amenosqueespecificadodemaneiradiferentenosprocedimentosde
instalaçãoeconfiuração.
•Conecteedesconecteoscabosconformedescritonatabelaapresentadaaseuiraoinstalar,moverou
abrirtampasdesteprodutooudedispositivosconectados.
ParaConectar:ParaDesconectar:
1.DESLIGUETudo.
2.Primeiramente,conectetodososcabosaos
dispositivos.
3.Conecteoscabosdesinalaosconectores.
4.Conecteoscabosdealimentaçãoàstomadas.
5.LIGUEosdispositivos.
1.DESLIGUETudo.
2.Primeiramente,removaoscabosdealimentaçãodas
tomadas.
3.Removaoscabosdesinaldosconectores.
4.Removatodososcabosdosdispositivos.
CUIDADO:
Aosubstituirabateriadelítio,utilizeapenasumabateriacomNúmerodePeça45C1566ouumtipo
debateriaequivalenterecomendadopeloSeoseusistemapossuiummódulocomumabateriade
lítio,substitua-oapenasporummódulodomesmotipoedomesmofabricante.Abateriacontémlítio
epodeexplodirsenãoforutilizada,manuseadaoudescartadademaneiracorreta.
Não:
•Joueoucoloquenaáua
•Aqueçaamaisde100°C(212°F)
•Consertenemdesmonte
Descarteabateriaconformerequeridopelasleisoureulamentoslocais.
PRECAUCIÓN:
Quandoprodutosalaser(comounidadesdeCD-ROMs,unidadesdeDVD-ROM,dispositivosdefibraótica
outransmissores)estivereminstalados,observeoseuinte:
•Nãoremovaastampas.Aremoçãodastampasdeumprodutoalaserpoderesultaremexposição
prejudicialàradiaçãodelaser.Nãoexistempeçasquepodemserconsertadasnointeriordodispositivo.
10ThinkCentreM900zHardwareMaintenanceManual

•Autilizaçãodecontrolesouajustesouaexecuçãodeprocedimentosdiferentesdosespecificadosaqui
poderesultaremexposiçãoprejudicialàradiação.
PERIGO
AlunsprodutosalasercontêmdiododelaserinteradodaClasse3AoudaClasse3B.Observeoseuinte:
Radiaçãoalaserquandoaberto.Nãoolhediretamenteparaofeixeaolhonuoucominstrumentosópticose
eviteexposiçãodiretaaofeixe.
≥18k(37lb)≥32k(70.5lb)≥55k(121.2lb)
CUIDADO:
Utilizeprocedimentosdeseurançaparalevantarequipamentos.
CUIDADO:
Obotãodecontroledealimentaçãododispositivoeobotãoparaliar/desliardafontedealimentação
nãodesliamacorrenteelétricafornecidaaodispositivo.Odispositivotambémpodetermaisdeumcabo
dealimentação.Pararemovertodaacorrenteelétricadodispositivo,asseurequetodososcabosde
alimentaçãoestejamdesconectadosdafontedealimentação.
1
2
Chapter1.Readthisfirst:Importantsafetyinformation11

12ThinkCentreM900zHardwareMaintenanceManual