Lenovo ThinkCentre M90p User manual

ThinkCentreHardware
MaintenanceManual
MachineType:7536

ThinkCentreHardware
MaintenanceManual
MachineType:7536

Note
Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandtheChapter2
“Safetyinformation”onpage3andAppendixA“Notices”onpage101.
SecondEidtion(February2012)
©CopyrightLenovo2010,2012.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwarearedeliveredpursuantaGeneralServices
Administration“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.
GS-35F-05925.

Contents
Chapter1.Aboutthismanual......1
Importantsafetyinformation..........1
ImportantinformationaboutreplacingRoHS
compliantFRUs...............1
Chapter2.Safetyinformation......3
Generalsafety................3
Electricalsafety...............3
Voltage-selectionswitch............5
Safetyinspectionguide............5
Handlingelectrostaticdischarge-sensitive
devices..................6
Groundingrequirements............6
Safetynotices(multi-lingualtranslations).....6
Chapter3.Generalinformation....29
LenovoThinkVantageTools.........29
LenovoWelcome..............29
LenovoSolutionCenter...........29
SimpleTap................29
Additionalinformationresources.......29
Specications...............30
Formachinetype:7536.........30
Chapter4.Generalcheckout.....31
Problemdeterminationtips..........32
Chapter5.Diagnostics........33
LenovoThinkVantageToolbox........33
LenovoSolutionCenter...........33
PC-DoctorforRescueandRecovery......34
PC-DoctorforDOS.............34
Creatingadiagnosticdisc........34
Runningthediagnosticprogramfroma
diagnosticdisc.............34
Navigatingthroughthediagnostics
programs...............35
Runningtests.............35
Viewingthetestlog...........36
Chapter6.UsingtheSetupUtility
program................39
StartingtheSetupUtilityprogram.......39
Viewingandchangingsettings........39
Usingpasswords..............39
Passwordconsiderations.........39
Power-OnPassword..........40
AdministratorPassword.........40
HardDiskPassword...........40
Setting,changing,anddeletingapassword.40
Enablingordisablingadevice........40
Selectingastartupdevice..........41
Selectingatemporarystartupdevice....41
Selectingorchangingthestartupdevice
sequence...............41
ExitingfromtheSetupUtilityprogram.....41
Chapter7.Symptom-to-FRUindex..43
Harddiskdrivebooterror..........43
PowerSupplyProblems...........43
Diagnosticerrorcodes...........44
Beepsymptoms..............61
POSTerrorcodes.............61
Miscellaneouserrormessages........63
Undeterminedproblems...........64
Chapter8.ReplacingFRUs(Machine
type:7536)..............67
Locatingconnectorsonthefrontofthecomputer.67
Locatingconnectorsontherearofthecomputer.67
Openingthecomputercover.........68
Locatingcomponents............69
Locatingpartsonthesystemboard......70
Replacingthebattery............71
Replacingamemorymodule.........73
ReplacingaPCIcard............74
Replacingthepowersupplyassembly.....76
Replacingtheheatsink...........78
Replacingthemicroprocessor........79
Replacingthesystemboard.........82
Replacingtheharddiskdrive.........84
Replacingtheopticaldrive..........86
Replacingtheinternalspeaker........87
ReplacingthefrontaudioandUSBassembly..90
Replacingthesystemfan..........91
Completingthepartsreplacement.......93
Chapter9.FRUlists..........95
MachineType7536.............95
Chapter10.Additionalservice
information..............97
Securityfeatures..............97
Hardware-controlledpasswords......97
Operatingsystempassword.......97
©CopyrightLenovo2010,2012iii

VitalProductData...........97
SecureManagedClient.........97
BIOSlevels................97
Updating(ashing)BIOSfromadisc......98
Updating(ashing)BIOSfromyouroperating
system..................98
RecoveringfromaPOST/BIOSupdatefailure..98
Powermanagement............99
Automaticcongurationandpowerinterface
(ACPI)BIOS..............99
AutomaticPower-Onfeatures.......99
AppendixA.Notices.........101
Televisionoutputnotice...........102
Trademarks................102
Index.................103
ivThinkCentreHardwareMaintenanceManual

Chapter1.Aboutthismanual
ThismanualcontainsserviceandreferenceinformationforThinkCentre®computermachinetypeslistedon
thefrontcover.ThismanualisintendedonlyfortrainedservicerswhoarefamiliarwithLenovo®computer
products.
Note:BesuretoreadandunderstandtheChapter2“Safetyinformation”onpage3beforeusingthe
informationinthismanual.
ThismanualincludesacompleteFRUpartnumberlistforeachmachinetypelistedonthefrontcover.If
youhaveInternetaccess,theFRUpartnumbersarealsoavailableat:
http://www.lenovo.com/support
Importantsafetyinformation
Besuretoreadallcautionanddangerstatementsinthismanualbeforeperforminganyoftheinstructions.
VeuillezliretouteslesconsignesdetypeDANGERetATTENTIONduprésentdocumentavantd'exécuter
lesinstructions.
LesenSieunbedingtalleHinweisevomTyp"ACHTUNG"oder"VORSICHT"indieserDokumentation,bevor
SieirgendwelcheVorgängedurchführen
LeggereleistruzioniintrodottedaATTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna
qualsiasidelleistruzioni
Certique-sedelertodasasinstruçõesdecuidadoeperigonestemanualantesdeexecutarqualquer
umadasinstruções
Esimportantequeleatodaslasdeclaracionesdeprecauciónydepeligrodeestemanualantesdeseguir
lasinstrucciones.
ImportantinformationaboutreplacingRoHScompliantFRUs
RoHS,theRestrictionofHazardousSubstancesinElectricalandElectronicEquipmentDirective
(2002/95/EC)isaEuropeanUnionlegalrequirementaffectingtheglobalelectronicsindustry.RoHS
requirementsmustbeimplementedonLenovoproductsplacedonthemarketandsoldinthe
EuropeanUnionafterJune,2006.ProductsonthemarketbeforeJune,2006arenotrequiredto
haveRoHScompliantparts.Ifthepartsarenotcompliantoriginally,replacementpartscanalso
benoncompliant,butinallcases,ifthepartsarecompliant,thereplacementpartsmustalsobe
compliant.
©CopyrightLenovo2010,20121

Note:RoHSandnon-RoHSFRUpartnumberswiththesametandfunctionareidentiedwithunique
FRUpartnumbers.
LenovoplanstotransitiontoRoHScompliancewellbeforetheimplementationdateandexpectsitssuppliers
tobereadytosupportLenovo'srequirementsandscheduleintheEU.Productssoldin2005willcontain
someRoHScompliantFRUs.ThefollowingstatementpertainstotheseproductsandanyproductLenovo
producescontainingRoHScompliantparts.
RoHScompliantThinkCentrepartshaveuniqueFRUpartnumbers.BeforeorafterJune2006,failedRoHS
compliantpartsmustalwaysbereplacedusingRoHScompliantFRUs,soonlytheFRUsidentiedas
compliantinthesystemhardwaremaintenancemanualordirectsubstitutionsforthoseFRUscanbeused.
ProductsmarketedbeforeJune2006ProductsmarketedafterJune2006
CurrentororiginalpartReplacementFRUCurrentororiginalpartReplacementFRU
Non-RoHSCanbeNon-RoHS
Non-RoHSCanbeRoHS
Non-RoHSCansubstituteforRoHS
RoHSMustbeRoHS
MustbeRoHSMustbeRoHS
Note:AdirectsubstitutionisapartwithadifferentFRUpartnumberthatisautomaticallyshippedbythe
distributioncenteratthetimeoforder.
2ThinkCentreHardwareMaintenanceManual

Chapter2.Safetyinformation
Thischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.
Generalsafety
Followtheserulestoensuregeneralsafety:
•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Ensureyoucanstandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallybetweenyourfeet.
3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjects
thatyouthinkaretooheavyforyou.
•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.
•Beforeyoustartthemachine,ensurethatotherservicerepresentativesandthecustomer'spersonnelare
notinahazardousposition.
•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing
themachine.
•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.
•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Ensurethatyoursleeves
arefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.
•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,approximately
8centimeters(3inches)fromtheend.
•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing.
Remember:Metalobjectsaregoodelectricalconductors.
•Wearsafetyglasseswhenyouare:hammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.
•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.
•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.
Electricalsafety
CAUTION:
Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.Toavoid
personalinjuryorequipmentdamage,disconnecttheattachedpowercords,telecommunication
systems,networks,andmodemsbeforeyouopenthecomputercovers,unlessinstructedotherwise
intheinstallationandcongurationprocedures.
Observethefollowingruleswhenworkingonelectricalequipment.
©CopyrightLenovo2010,20123

Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberoormatsthatcontainsmallconductiveberstodecreaseelectrostaticdischarges.
Donotusethistypeofmattoprotectyourselffromanelectricshock.
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–RemovingorinstallingFieldReplaceableUnits(FRUs)
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topower-offthewallboxthatsuppliespowertothemachineandtolockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseanelectricshock.Byobservingtheabove
rule,youmaypreventacurrentfrompassingthroughyourbody.
–Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor
thetesters.
–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas
metaloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein
thesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuringhighvoltages.
•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpowered-off.
•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistoors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.
•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorgenerators
andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)
•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.
4ThinkCentreHardwareMaintenanceManual

Voltage-selectionswitch
Somecomputersareequippedwithavoltage-selectionswitchlocatednearthepower-cordconnection
pointonthecomputer.Ifyourcomputerhasavoltage-selectionswitch,ensurethatyousettheswitchto
matchthevoltageavailableatyourelectricaloutlet.Settingthevoltage-selectionswitchincorrectlycan
causepermanentdamagetothecomputer.
Ifyourcomputerdoesnothaveavoltage-selectionswitch,yourcomputerisdesignedtooperateonlyatthe
voltageprovidedinthecountryorregionwherethecomputerwasoriginallypurchased.
Ifyourelocateyourcomputertoanothercountry,beawareofthefollowing:
•Ifyourcomputerdoesnothaveavoltage-selectionswitch,donotconnectthecomputertoanelectrical
outletuntilyouhaveveriedthatthevoltageprovidedisthesameasitwasinthecountryorregion
wherethecomputerwasoriginallypurchased.
•Ifyourcomputerhasavoltage-selectionswitch,donotconnectthecomputertoanelectricaloutletuntil
youhaveveriedthatthevoltage-selectionswitchissettomatchthevoltageprovidedinthatcountry
orregion.
Ifyouarenotsureofthevoltageprovidedatyourelectricaloutlet,contactyourlocalelectriccompanyor
refertoofcialWebsitesorotherliteraturefortravelerstothecountryorregionwhereyouarelocated.
Safetyinspectionguide
Theintentofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditionsonthese
products.Eachmachine,asitwasdesignedandbuilt,hadrequiredsafetyitemsinstalledtoprotectusers
andservicepersonnelfrominjury.Thisguideaddressesonlythoseitems.However,goodjudgmentshould
beusedtoidentifypotentialsafetyhazardsduetoattachmentoffeaturesoroptionsnotcoveredbythis
inspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutrstcorrectingtheproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock).
•Explosivehazards,suchasadamagedCRTfaceorbulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Theguideconsistsofaseriesofstepspresentedinachecklist.Beginthecheckswiththepoweroff,and
thepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Power-offthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityfor0.1ohmorlessbetweentheexternalgroundpinandframeground.
b.Thepowercordshouldbetheappropriatetypeasspeciedinthepartslistings.
c.Insulationmustnotbefrayedorworn.
4.Removethecover.
Chapter2.Safetyinformation5

5.Checkforanyobviousalterations.Usegoodjudgmentastothesafetyofanyalterations.
6.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetallings,contamination,wateror
otherliquids,orsignsofreorsmokedamage.
7.Checkforworn,frayed,orpinchedcables.
8.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingelectrostaticdischarge-sensitivedevices
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeoplewhilehandlingthepart.
•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeevenwhen
youarewearingawriststrap.
•Usetheblacksideofagroundedworkmattoprovideastatic-freeworksurface.Thematisespecially
usefulwhenhandlingESD-sensitivedevices.
•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecic
servicerequirement.
Note:TheuseofagroundingsystemisdesirablebutnotrequiredtoprotectagainstESDdamage.
–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.
–UseanESDcommongroundorreferencepointwhenworkingonadouble-insulatedor
battery-operatedsystem.Youcanusecoaxorconnector-outsideshellsonthesesystems.
–Usetheroundground-prongoftheacplugonac-operatedcomputers.
Groundingrequirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.
Safetynotices(multi-lingualtranslations)
Thecautionanddangersafetynoticesinthissectionareprovidedinthefollowinglanguages:
•English
•Arabic
•Brazilian/Portuguese
•Chinese(simplied)
•Chinese(traditional)
6ThinkCentreHardwareMaintenanceManual

•French
•German
•Hebrew
•Italian
•Korean
•Spanish
DANGER
Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.
Toavoidashockhazard:
•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconguration
ofthisproductduringanelectricalstorm.
•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.
•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.
•Neverturnonanyequipmentwhenthereisevidenceofre,water,orstructuraldamage.
•Disconnecttheattachedpowercords,telecommunicationssystems,networks,andmodems
beforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationandconguration
procedures.
•Connectanddisconnectcablesasdescribedinthefollowingtableswheninstalling,moving,or
openingcoversonthisproductorattacheddevices.
ToConnectToDisconnect
1.TurneverythingOFF.
2.First,attachallcablestodevices.
3.Attachsignalcablestoconnectors.
4.Attachpowercordstooutlet.
5.TurndeviceON.
1.TurneverythingOFF.
2.First,removepowercordsfromoutlet.
3.Removesignalcablesfromconnectors.
4.Removeallcablesfromdevices.
CAUTION:
Whenreplacingthelithiumbattery,useonlyPartNumber45C1566oranequivalenttypebattery
recommendedbythemanufacturer.Ifyoursystemhasamodulecontainingalithiumbattery,replace
itonlywiththesamemoduletypemadebythesamemanufacturer.Thebatterycontainslithiumand
canexplodeifnotproperlyused,handled,ordisposedof.Donot:
•Throworimmerseintowater
•Heattomorethan100°C(212°F)
•Repairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations.
Chapter2.Safetyinformation7

CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVD-ROMdrives,beropticdevices,ortransmitters)are
installed,notethefollowing:
•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.
•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespeciedherein
mightresultinhazardousradiationexposure.
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:
Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.
≥18kg(37lbs)≥32kg(70.5lbs)≥55kg(121.2lbs)
CAUTION:
Usesafepracticeswhenlifting.
CAUTION:
Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedevice.Thedevicealsomighthavemorethanonepower
cord.Toremoveallelectricalcurrentfromthedevice,ensurethatallpowercordsaredisconnected
fromthepowersource.
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8ThinkCentreHardwareMaintenanceManual

Chapter2.Safetyinformation9

≥18kg(37lbs)≥32kg(70.5lbs)≥55kg(121.2lbs)
1
2
PERIGO
10ThinkCentreHardwareMaintenanceManual

Acorrenteelétricaprovenientedecabosdealimentação,detelefoneedecomunicaçõeséperigosa.
Paraevitarriscodechoqueelétrico:
•Nãoconectenemdesconectenenhumcaboouexecuteinstalação,manutençãooureconguração
desteprodutoduranteumatempestadecomraios.
•Conectetodososcabosdealimentaçãoatomadaselétricascorretamenteinstaladaseaterradas.
•Todoequipamentoqueforconectadoaesteprodutodeveserconectadoatomadascorretamente
instaladas.
•Quandopossível,utilizeapenasumadasmãosparaconectaroudesconectarcabosdesinal.
•Nuncaliguenenhumequipamentoquandohouverevidênciadefogo,águaoudanosestruturais.
•Antesdeabrirtampasdedispositivos,desconectecabosdealimentação,sistemasdetelecomunicação,
redesemodemsconectados,amenosqueespecicadodemaneiradiferentenosprocedimentosde
instalaçãoeconguração.
•Conecteedesconecteoscabosconformedescritonatabelaapresentadaaseguiraoinstalar,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:
•Jogueoucoloquenaágua
•Aqueçaamaisde100°C(212°F)
•Consertenemdesmonte
Descarteabateriaconformerequeridopelasleisouregulamentoslocais.
PRECAUCIÓN:
Quandoprodutosalaser(comounidadesdeCD-ROMs,unidadesdeDVD-ROM,dispositivosdebraótica
outransmissores)estivereminstalados,observeoseguinte:
Chapter2.Safetyinformation11

•Nãoremovaastampas.Aremoçãodastampasdeumprodutoalaserpoderesultaremexposição
prejudicialàradiaçãodelaser.Nãoexistempeçasquepodemserconsertadasnointeriordodispositivo.
•Autilizaçãodecontrolesouajustesouaexecuçãodeprocedimentosdiferentesdosespecicadosaqui
poderesultaremexposiçãoprejudicialàradiação.
PERIGO
AlgunsprodutosalasercontêmdiododelaserintegradodaClasse3AoudaClasse3B.Observeoseguinte:
Radiaçãoalaserquandoaberto.Nãoolhediretamenteparaofeixeaolhonuoucominstrumentosópticose
eviteexposiçãodiretaaofeixe.
≥18kg(37lbs)≥32kg(70.5lbs)≥55kg(121.2lbs)
CUIDADO:
Utilizeprocedimentosdesegurançaparalevantarequipamentos.
CUIDADO:
Obotãodecontroledealimentaçãododispositivoeobotãoparaligar/desligardafontedealimentação
nãodesligamacorrenteelétricafornecidaaodispositivo.Odispositivotambémpodetermaisdeumcabo
dealimentação.Pararemovertodaacorrenteelétricadodispositivo,assegurequetodososcabosde
alimentaçãoestejamdesconectadosdafontedealimentação.
1
2
12ThinkCentreHardwareMaintenanceManual

Chapter2.Safetyinformation13

1
2
14ThinkCentreHardwareMaintenanceManual