Lenovo ThinkCentre M79 Owner's manual

ThinkCentreM79
HardwareMaintenanceManual
MachineTypes:10CT,10CU,10CV,10CW,10J9,10JA,10JB,and
10JC

Note:Beforeusinthisinformationandtheproductitsupports,besuretoreadandunderstandtheChapter
1“Readthisfirst:Importantsafetyinformation”onpae1andAppendixF“Notices”onpae167.
SecondEdition(September2015)
©CopyrightLenoo2014,2015.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.

Contents
Aboutthismanual............
Chapter1.Readthisfirst:Important
safetyinformation............1
Powercordsandpoweradapters........1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionuide............3
Handlinelectrostaticdischare-sensitive
devices..................4
Groundinrequirements............4
Safetynotices(multi-linualtranslations).....5
Chapter2.Productoeriew.....27
Locations.................27
Locatinconnectors,controls,andindicators
onthefrontofyourcomputer.......28
Locatinconnectorsontherearofyour
computer...............29
Locatincomponents..........31
LocatinmajorFRUsandCRUs......31
Locatinpartsonthesystemboard....34
Locatininternaldrives.........35
Locatinthemachinetypeandmodellabel.36
Features.................36
Specifications...............40
Lenovoprorams.............40
Accessinaproramonyourcomputer...40
AnintroductiontoLenovoprorams....41
Chapter3.Usingyourcomputer...45
UsinWindowsshortcutkeys.........45
Usinthewheelmouse...........45
Settinthecomputervolume.........46
AddinanicontotheWindowsnotificationarea.46
Usinadisc................46
Usintheopticaldrive..........46
Handlinandstorinadisc........47
Playinandremovinadisc.......47
Recordinadisc............47
NaviatinamonscreensontheWindows8.1
operatinsystem..............48
AccessinControlPanelontheWindows8.1
operatinsystem..............49
Frequentlyaskedquestions.........49
Chapter4.Youandyourcomputer..51
Accessibilityandcomfort..........51
Arraninyourworkspace........51
Comfort...............51
Glareandlihtin............52
Aircirculation.............52
Electricaloutletsandcablelenths.....52
Accessibilityinformation.........52
Reisterinyourcomputer..........55
Movinyourcomputertoanothercountryor
reion..................55
Chapter5.Security..........57
Securityfeatures..............57
Lockinthecomputercover.........57
AttachinaKensinton-stylecablelock.....59
Preventinunauthorizedaccesstoyour
computer.................59
Usinfinerprintauthentication........60
Usinandunderstandinfirewalls.......60
Protectindataaainstviruses........60
Chapter6.Adancedconfiguration..61
UsintheSetupUtilityproram........61
StartintheSetupUtilityproram.....61
Viewinandchaninsettins......61
UsinBIOSpasswords.........62
Enablinordisablinadevice.......63
Selectinastartupdevice........64
EnablinErPLPScompliancemode....64
ICEperformancemode.........65
ICEthermalalert............65
ExitintheSetupUtilityproram......66
UpdatinorrecoverintheBIOS.......66
BIOSlevels..............66
ChanintheBIOSsettinsbeforeinstallina
newoperatinsystem..........66
Usinsystemprorams.........67
UpdatintheBIOS...........67
RecoverinfromaBIOSupdatefailure...67
Chapter7.Preentingproblems...69
Keepinyourcomputercurrent........69
Gettinthelatestdevicedriversforyour
computer...............69
Gettinthelatestsystemupdates.....69
Cleaninandmaintenance..........69
Basics................70
Cleaninyourcomputer.........70
Goodmaintenancepractices.......71
©CopyrihtLenovo2014,2015i

Movinyourcomputer...........72
Chapter8.Troubleshootingand
diagnostics..............73
Basictroubleshootin............73
Troubleshootinprocedure..........74
Troubleshootin..............74
Audioproblems............75
CDproblems.............75
DVDproblems.............76
Intermittentproblems..........77
Harddiskdriveproblems.........77
Problemswiththekeyboardormouse...78
Monitorproblems............78
Networkinproblems..........79
Ihaveconnectedanoptiontomycomputer,
butitdoesnotwork...........80
Performanceandlockupproblems.....81
Theprinterdoesnotwork........82
Serialconnectorcannotbeaccessed....82
Softwareproblems...........82
MyUSBconnectorscannotbeaccessed..83
Dianostics................84
LenovoSolutionCenter.........84
UEFIdianosticproram.........84
Chapter9.Sericecheckoutand
symptom-to-FRUindex........87
Servicecheckout..............87
Problemdeterminationtips........87
Symptom-to-FRUindex...........88
Harddiskdrivebooterror........88
Powersupplyproblems.........89
Beepsymptoms............89
POSTerrorcodes............89
Miscellaneouserrorconditions......90
Undeterminedproblems.........92
Chapter10.Recoeryinformation..93
RecoveryinformationfortheWindows7operatin
system..................93
Creatinandusinrecoverymedia.....93
Performinbackupandrecoveryoperations.94
Creatinandusinarescuemedium....96
Reinstallinproramsanddevicedrivers..96
Solvinrecoveryproblems........98
RecoveryinformationfortheWindows8.1
operatinsystem..............98
Refreshinyourcomputer........98
Resettinyourcomputertothefactory-default
settins................98
Usintheadvancedstartupoptions....99
RecoverinyouroperatinsystemifWindows
8.1failstostart.............99
RecoveryinformationfortheWindows10operatin
system..................99
Chapter11.Installingorreplacing
hardware..............101
Handlinstatic-sensitivedevices.......101
Installinorreplacinhardware........101
Installinexternaloptions........101
Removinthecomputercover.......101
Removinandreinstallinthefrontbezel..102
Accessinthesystemboardcomponentsand
drives................104
Installinorreplacinamemorymodule...105
InstallinorreplacinaPCIcard......107
Replacinthebattery..........109
Replacintheharddiskdrive.......110
Replacinthesolid-statedrive......112
Installinorreplacintheopticaldrive...117
Replacintheslimcardreader......120
Replacintheheatsinkandfanassembly..122
Replacinthepowersupplyassembly...125
Replacinthemicroprocessor.......128
Replacinthesystemboard.......131
ReplacinthefrontaudioandUSB
assembly...............133
Replacinthesystemfanassembly....134
Replacinthethermalsensor.......136
InstallinorremovinthefrontWi-Fi
antenna...............138
InstallinorremovintherearWi-Fi
antenna...............140
ReplacintheWi-Fiunits.........142
Replacinthekeyboardormouse.....146
Completinthepartsreplacement.....147
Chapter12.Gettinginformation,help,
andserice.............149
Informationresources............149
Windowshelpsystem..........149
SafetyandWarranty...........149
LenovoWebsite............149
LenovoSupportWebsite.........150
Helpandservice..............150
Usinthedocumentationanddianostic
proram...............150
Callinforservice............150
Usinotherservices..........151
Purchasinadditionalservices......151
iiThinkCentreM79HardwareMaintenanceManual

AppendixA.Regulatory
information.............153
Exportclassificationnotice..........153
Electronicemissionsnotices.........153
FederalCommunicationsCommission
DeclarationofConformity........153
Eurasiancompliancemark..........155
Brazilaudionotice.............155
Mexicowireless-radiocomplianceinformation..155
Additionalreulatoryinformation.......155
AppendixB.WEEEandrecycling
information.............157
ImportantWEEEinformation.........157
RecyclininformationforJapan........157
RecyclininformationforBrazil........158
BatteryrecyclininformationforTaiwan.....158
BatteryrecyclininformationfortheEuropean
Union..................158
AppendixC.RestrictionofHazardous
SubstancesDirectie(RoHS)....161
EuropeanUnionRoHS...........161
ChinaRoHS................161
TurkishRoHS...............161
UkraineRoHS...............162
IndiaRoHS................162
AppendixD.ChinaEnergyLabel..163
AppendixE.ENERGYSTARmodel
information.............165
AppendixF.Notices.........167
Trademarks................168
Index.................169
©CopyrihtLenovo2014,2015iii

iThinkCentreM79HardwareMaintenanceManual

Aboutthismanual
ThismanualprovidesserviceandreferenceinformationforThinkCentre®computerslistedonthefrontcover.
Usethismanualalonwiththeadvanceddianosticteststotroubleshootproblems.
Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkCentre
computers.Usethismanualalonwiththeadvanceddianosticteststotroubleshootproblemseffectively.
BeforeservicinaThinkCentrecomputer,besuretoreadandunderstandChapter1“Readthisfirst:
Importantsafetyinformation”onpae1.
©CopyrihtLenovo2014,2015

iThinkCentreM79HardwareMaintenanceManual

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.
©CopyrihtLenovo2014,20151

•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.
Electricalsafety
CAUTION:
Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.Toaoid
personalinjuryorequipmentdamage,disconnecttheattachedpowercords,telecommunication
systems,networks,andmodemsbeforeyouopenthecomputercoers,unlessinstructedotherwise
intheinstallationandconfigurationprocedures.
Observethefollowinruleswhenworkinonelectricalequipment.
Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkinwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberfloormatsthatcontainsmallconductivefiberstodecreaseelectrostaticdischares.
Donotusethistypeofmattoprotectyourselffromelectricalshock.
•Findtheroomemerencypower-off(EPO)switch,disconnectinswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunpluthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltaes.
•Disconnectallpowerbefore:
–Performinamechanicalinspection
–Workinnearpowersupplies
–RemovinorinstallinFieldReplaceableUnits(FRUs)
•Beforeyoustarttoworkonthemachine,unpluthepowercord.Ifyoucannotunpluit,askthecustomer
topower-offthewallboxthatsuppliespowertothemachineandtolockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowinprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkinwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseelectricalshock.Byobservintheaboverule,
youmaypreventacurrentfrompassinthrouhyourbody.
2ThinkCentreM79HardwareMaintenanceManual

–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.
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).
Chapter1.Readthisfirst:Importantsafetyinformation3

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-sensitiedeices
Anycomputerpartcontainintransistorsorinteratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischare(ESD).ESDdamaecanoccurwhenthereisadifferenceincharebetweenobjects.
ProtectaainstESDdamaebyequalizinthecharesothatthemachine,thepart,theworkmat,andthe
personhandlinthepartareallatthesamechare.
Notes:
1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.
WhenhandlinESD-sensitiveparts:
•Keepthepartsinprotectivepackaesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeoplewhilehandlinthepart.
•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.
4ThinkCentreM79HardwareMaintenanceManual

Safetynotices(multi-lingualtranslations)
Thecautionanddanersafetynoticesinthissectionareprovidedinthefollowinlanuaes:
•Enlish
•Arabic
•Brazilian/Portuuese
•Chinese(simplified)
•Chinese(traditional)
•French
•German
•Hebrew
•Italian
•Korean
•Spanish
DANGER
Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.
Toaoidashockhazard:
•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration
ofthisproductduringanelectricalstorm.
•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.
•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.
•Neerturnonanyequipmentwhenthereiseidenceoffire,water,orstructuraldamage.
•Disconnecttheattachedpowercords,telecommunicationssystems,networks,andmodems
beforeyouopenthedeicecoers,unlessinstructedotherwiseintheinstallationandconfiguration
procedures.
•Connectanddisconnectcablesasdescribedinthefollowingtableswheninstalling,moing,or
openingcoersonthisproductorattacheddeices.
ToConnectToDisconnect
1.TurneverythinOFF.
2.First,attachallcablestodevices.
3.Attachsinalcablestoconnectors.
4.Attachpowercordstooutlet.
5.TurndeviceON.
1.TurneverythinOFF.
2.First,removepowercordsfromoutlet.
3.Removesinalcablesfromconnectors.
4.Removeallcablesfromdevices.
Chapter1.Readthisfirst:Importantsafetyinformation5

CAUTION:
Whenreplacingthelithiumbattery,useonlyPartNumber45C1566oranequialenttypebattery
recommendedbythemanufacturer.Ifyoursystemhasamodulecontainingalithiumbattery,replace
itonlywiththesamemoduletypemadebythesamemanufacturer.Thebatterycontainslithiumand
canexplodeifnotproperlyused,handled,ordisposedof.Donot:
•Throworimmerseintowater
•Heattomorethan100°C(212°F)
•Repairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations.
CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVD-ROMdries,fiberopticdeices,ortransmitters)are
installed,notethefollowing:
•Donotremoethecoers.Remoingthecoersofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenosericeablepartsinsidethedeice.
•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
mightresultinhazardousradiationexposure.
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:
Laserradiationwhenopen.Donotstareintothebeam,donotiewdirectlywithoptical
instruments,andaoiddirectexposuretothebeam.
≥18k(37lb)≥32k(70.5lb)≥55k(121.2lb)
CAUTION:
Usesafepracticeswhenlifting.
CAUTION:
Thepowercontrolbuttononthedeiceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedeice.Thedeicealsomighthaemorethanonepower
6ThinkCentreM79HardwareMaintenanceManual

cord.Toremoeallelectricalcurrentfromthedeice,ensurethatallpowercordsaredisconnected
fromthepowersource.
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2
Chapter1.Readthisfirst:Importantsafetyinformation7

≥18k(37lb)≥32k(70.5lb)≥55k(121.2lb)
8ThinkCentreM79HardwareMaintenanceManual

1
2
PERIGO
Acorrenteelétricaprovenientedecabosdealimentação,detelefoneedecomunicaçõeséperiosa.
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
debateriaequialenterecomendadopeloSeoseusistemapossuiummódulocomumabateriade
lítio,substitua-oapenasporummódulodomesmotipoedomesmofabricante.Abateriacontémlítio
epodeexplodirsenãoforutilizada,manuseadaoudescartadademaneiracorreta.
Chapter1.Readthisfirst:Importantsafetyinformation9

Não:
•Joueoucoloquenaáua
•Aqueçaamaisde100°C(212°F)
•Consertenemdesmonte
Descarteabateriaconformerequeridopelasleisoureulamentoslocais.
PRECAUCIÓN:
Quandoprodutosalaser(comounidadesdeCD-ROMs,unidadesdeDVD-ROM,dispositivosdefibraótica
outransmissores)estivereminstalados,observeoseuinte:
•Nãoremovaastampas.Aremoçãodastampasdeumprodutoalaserpoderesultaremexposição
prejudicialàradiaçãodelaser.Nãoexistempeçasquepodemserconsertadasnointeriordodispositivo.
•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.
10ThinkCentreM79HardwareMaintenanceManual

1
2
Chapter1.Readthisfirst:Importantsafetyinformation11

1
2
12ThinkCentreM79HardwareMaintenanceManual