Lenovo ThinkCentre M79 Owner's manual

ThinkCentreM79
HardwareMaintenanceManual
MachineTypes:10CN,10CQ,10CR,10CS,10J5,10J6,10J7,and
10J8

Note:Beoreusingthisinormationandtheproductitsupports,besuretoreadandunderstandtheChapter
1“Readthisfirst:Importantsaetyinormation”onpage1andAppendixF“Notices”onpage163.
SecondEdition(September2015)
©CopyrightLenoo2014,2015.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IdataorsotwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetorthinContractNo.GS-35F-05925.

Contents
Aboutthismanual............
Chapter1.Readthisfirst:Important
safetyinformation............1
Powercordsandpoweradapters........1
Generalsaety................1
Electricalsaety...............2
Saetyinspectionguide............3
Handlingelectrostaticdischarge-sensitive
devices..................4
Groundingrequirements............4
Saetynotices(multi-lingualtranslations).....5
Chapter2.Productoeriew.....27
Locations.................27
Locatingconnectors,controls,andindicators
ontherontoyourcomputer.......28
Locatingconnectorsontherearoyour
computer...............29
Locatingcomponents..........31
LocatingmajorFRUsandCRUs......31
Locatingpartsonthesystemboard....34
Locatinginternaldrives.........35
Locatingthemachinetypeandmodellabel.36
Features.................36
Specifications...............40
Lenovoprograms.............40
Accessingaprogramonyourcomputer...40
AnintroductiontoLenovoprograms....41
Chapter3.Usingyourcomputer...45
UsingWindowsshortcutkeys.........45
Usingthewheelmouse...........45
Settingthecomputervolume.........46
AddinganicontotheWindowsnotificationarea.46
Usingadisc................46
Usingtheopticaldrive..........46
Handlingandstoringadisc........47
Playingandremovingadisc.......47
Recordingadisc............47
NavigatingamongscreensontheWindows8.1
operatingsystem..............48
AccessingControlPanelontheWindows8.1
operatingsystem..............49
Frequentlyaskedquestions.........49
Chapter4.Youandyourcomputer..51
Accessibilityandcomort..........51
Arrangingyourworkspace........51
Comort...............51
Glareandlighting............52
Aircirculation.............52
Electricaloutletsandcablelengths.....52
Accessibilityinormation.........52
Registeringyourcomputer..........55
Movingyourcomputertoanothercountryor
region..................55
Chapter5.Security..........57
Securityeatures..............57
Lockingthecomputercover.........57
AttachingaKensington-stylecablelock.....59
Attachingacablelock............60
Preventingunauthorizedaccesstoyour
computer.................60
Usingfingerprintauthentication........61
Usingandunderstandingfirewalls.......61
Protectingdataagainstviruses........61
Chapter6.Adancedconfiguration..63
UsingtheSetupUtilityprogram........63
StartingtheSetupUtilityprogram.....63
Viewingandchangingsettings......63
UsingBIOSpasswords.........64
Enablingordisablingadevice.......65
Selectingastartupdevice........66
EnablingErPLPScompliancemode....66
ICEperormancemode.........67
ICEthermalalert............67
ExitingtheSetupUtilityprogram......68
UpdatingorrecoveringtheBIOS.......68
BIOSlevels..............68
Usingsystemprograms.........68
UpdatingtheBIOS...........69
ChangingtheBIOSsettingsbeoreinstallinga
newoperatingsystem..........69
RecoveringromaBIOSupdateailure...69
Chapter7.Preentingproblems...71
Keepingyourcomputercurrent........71
Gettingthelatestdevicedriversoryour
computer...............71
Gettingthelatestsystemupdates.....71
Cleaningandmaintenance..........71
Basics................72
Cleaningyourcomputer.........72
©CopyrightLenovo2014,2015i

Goodmaintenancepractices.......73
Movingyourcomputer...........74
Chapter8.Troubleshootingand
diagnostics..............75
Basictroubleshooting............75
Troubleshootingprocedure..........76
Troubleshooting..............76
Audioproblems............77
CDproblems.............77
DVDproblems.............78
Intermittentproblems..........79
Harddiskdriveproblems.........79
Problemswiththekeyboardormouse...80
Monitorproblems............80
Networkingproblems..........81
Ihaveconnectedanoptiontomycomputer,
butitdoesnotwork...........82
Perormanceandlockupproblems.....83
Theprinterdoesnotwork........84
Serialconnectorcannotbeaccessed....84
Sotwareproblems...........84
MyUSBconnectorscannotbeaccessed..85
Diagnostics................86
LenovoSolutionCenter.........86
UEFIdiagnosticprogram.........86
Chapter9.Sericecheckoutand
symptom-to-FRUindex........89
Servicecheckout..............89
Problemdeterminationtips........89
Symptom-to-FRUindex...........90
Harddiskdrivebooterror........90
Powersupplyproblems.........91
Beepsymptoms............91
POSTerrorcodes............91
Miscellaneouserrorconditions......92
Undeterminedproblems.........94
Chapter10.Recoeryinformation..95
RecoveryinormationortheWindows7operating
system..................95
Creatingandusingrecoverymedia.....95
Perormingbackupandrecoveryoperations.96
Creatingandusingarescuemedium....98
Reinstallingprogramsanddevicedrivers..98
Solvingrecoveryproblems........100
RecoveryinormationortheWindows8.1
operatingsystem..............100
Rereshingyourcomputer........100
Resettingyourcomputertotheactory-deault
settings................100
Usingtheadvancedstartupoptions....101
RecoveringyouroperatingsystemiWindows
8.1ailstostart.............101
RecoveryinormationortheWindows10operating
system..................101
Chapter11.Installingorreplacing
hardware..............103
Handlingstatic-sensitivedevices.......103
Installingorreplacinghardware........103
Installingexternaloptions........103
Removingthecomputercover.......103
Removingandreinstallingtherontbezel..104
InstallingorreplacingaPCIcard......106
Installingorreplacingamemorymodule...108
Installingorreplacingtheopticaldrive...110
Replacingtheslimcardreader......112
Replacingthebattery..........115
Replacingtheheatsinkandanassembly..116
Replacingthepowersupplyassembly...118
Replacingthemicroprocessor.......119
Replacingthesystemboard.......121
Replacingtheharddiskdrive.......123
Installingthesolid-statedrive.......125
Replacingtherearanassembly......126
ReplacingtherontaudioandUSB
assembly...............128
Replacingthethermalsensor.......129
Replacingthecoverpresenceswitch....131
InstallingorremovingtherontWi-Fi
antenna...............133
InstallingorremovingtherearWi-Fi
antenna...............135
ReplacingtheWi-Fiunits.........136
Replacingthekeyboardormouse.....141
Completingthepartsreplacement.....142
Chapter12.Gettinginformation,help,
andserice.............145
Inormationresources............145
Windowshelpsystem..........145
SaetyandWarranty...........145
LenovoWebsite............145
LenovoSupportWebsite.........146
Helpandservice..............146
Usingthedocumentationanddiagnostic
program...............146
Callingorservice............146
Usingotherservices..........147
Purchasingadditionalservices......147
iiThinkCentreM79HardwareMaintenanceManual

AppendixA.Regulatory
information.............149
Exportclassificationnotice..........149
Electronicemissionsnotices.........149
FederalCommunicationsCommission
DeclarationoConormity........149
Eurasiancompliancemark..........151
Brazilaudionotice.............151
Mexicowireless-radiocomplianceinormation..151
Additionalregulatoryinormation.......151
AppendixB.WEEEandrecycling
information.............153
ImportantWEEEinormation.........153
RecyclinginormationorJapan........153
RecyclinginormationorBrazil........154
BatteryrecyclinginormationorTaiwan.....154
BatteryrecyclinginormationortheEuropean
Union..................154
AppendixC.RestrictionofHazardous
SubstancesDirectie(RoHS)....157
EuropeanUnionRoHS...........157
ChinaRoHS................157
TurkishRoHS...............157
UkraineRoHS...............158
IndiaRoHS................158
AppendixD.ChinaEnergyLabel..159
AppendixE.ENERGYSTARmodel
information.............161
AppendixF.Notices.........163
Trademarks................164
Index.................165
©CopyrightLenovo2014,2015iii

iThinkCentreM79HardwareMaintenanceManual

Aboutthismanual
ThismanualprovidesserviceandreerenceinormationorThinkCentre®computerslistedontherontcover.
Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.
Important:ThismanualisintendedonlyortrainedservicetechnicianswhoareamiliarwithThinkCentre
computers.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseectively.
BeoreservicingaThinkCentrecomputer,besuretoreadandunderstandChapter1“Readthisfirst:
Importantsaetyinormation”onpage1.
©CopyrightLenovo2014,2015

iThinkCentreM79HardwareMaintenanceManual

Chapter1.Readthisfirst:Importantsafetyinformation
Thischaptercontainsthesaetyinormationthatyoumustbeamiliarwith.
Powercordsandpoweradapters
Useonlythepowercordsandpoweradapterssuppliedbytheproductmanuacturer.Donotusetheac
powercordorotherdevices.
Thepowercordsshallbesaetyapproved.ForGermany,itshallbeH05VV-F,3G,0.75mm2,orbetter.For
othercountries,thesuitabletypesshallbeusedaccordingly.
Neverwrapapowercordaroundapoweradapterorotherobject.Doingsocanstressthecordinwaysthat
cancausethecordtoray,crack,orcrimp.Thiscanpresentasaetyhazard.
Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects.
Protectpowercordandpoweradaptersromliquids.Forinstance,donotleaveyourpowercordorpower
adapternearsinks,tubs,toilets,oronfloorsthatarecleanedwithliquidcleansers.Liquidscancausea
shortcircuit,particularlyithepowercordorpoweradapterhasbeenstressedbymisuse.Liquidsalsocan
causegradualcorrosionopowercordterminalsand/ortheconnectorterminalsonapoweradapter,
whichcaneventuallyresultinoverheating.
Ensurethatallpowercordconnectorsaresecurelyandcompletelypluggedintoreceptacles.
Donotuseanypoweradapterthatshowscorrosionattheacinputpinsorshowssignsooverheating(such
asdeormedplastic)attheacinputoranywhereonthepoweradapter.
Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsignsocorrosionor
overheatingorwherethepowercordappearstohavebeendamagedinanyway.
Generalsafety
Followtheserulestoensuregeneralsaety:
•Observegoodhousekeepingintheareaothemachinesduringandatermaintenance.
•Whenlitinganyheavyobject:
1.Ensureyoucanstandsaelywithoutslipping.
2.Distributetheweightotheobjectequallybetweenyoureet.
3.Useaslowlitingorce.Nevermovesuddenlyortwistwhenyouattempttolit.
4.Litbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainromthe
musclesinyourback.
Attention:
Donotattempttolitanyobjectsthatweighmorethan16kg(35lb)orobjectsthatyouthinkare
tooheavyoryou.
•Donotperormanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsae.
•Beoreyoustartthemachine,ensurethatotherservicerepresentativesandthecustomer'spersonnelare
notinahazardousposition.
©CopyrightLenovo2014,20151

•Placeremovedcoversandotherpartsinasaeplace,awayromallpersonnel,whileyouareservicing
themachine.
•Keepyourtoolcaseawayromwalkareassothatotherpeoplewillnottripoverit.
•Donotwearlooseclothingthatcanbetrappedinthemovingpartsoamachine.Ensurethatyoursleeves
areastenedorrolledupaboveyourelbows.Iyourhairislong,astenit.
•Inserttheendsoyournecktieorscarinsideclothingorastenitwithanonconductiveclip,approximately
8centimeters(3inches)romtheend.
•Donotwearjewelry,chains,metal-rameeyeglasses,ormetalastenersoryourclothing.
Remember:Metalobjectsaregoodelectricalconductors.
•Wearsaetyglasseswhenyouare:hammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.
•Aterservice,reinstallallsaetyshields,guards,labels,andgroundwires.Replaceanysaetydevice
thatiswornordeective.
•Reinstallallcoverscorrectlybeorereturningthemachinetothecustomer.
Electricalsafety
CAUTION:
Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.Toaoid
personalinjuryorequipmentdamage,disconnecttheattachedpowercords,telecommunication
systems,networks,andmodemsbeforeyouopenthecomputercoers,unlessinstructedotherwise
intheinstallationandconfigurationprocedures.
Observetheollowingruleswhenworkingonelectricalequipment.
Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasot
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberfloormatsthatcontainsmallconductivefiberstodecreaseelectrostaticdischarges.
Donotusethistypeomattoprotectyourselromelectricalshock.
•Findtheroomemergencypower-o(EPO)switch,disconnectingswitch,orelectricaloutlet.Ianelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbeore:
–Perormingamechanicalinspection
–Workingnearpowersupplies
–RemovingorinstallingFieldReplaceableUnits(FRUs)
•Beoreyoustarttoworkonthemachine,unplugthepowercord.Iyoucannotunplugit,askthecustomer
topower-othewallboxthatsuppliespowertothemachineandtolockthewallboxintheoposition.
•Iyouneedtoworkonamachinethathasexposedelectricalcircuits,observetheollowingprecautions:
–Ensurethatanotherperson,amiliarwiththepower-ocontrols,isnearyou.
Remember:Anotherpersonmustbetheretoswitchothepower,inecessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseelectricalshock.Byobservingtheaboverule,
youmaypreventacurrentrompassingthroughyourbody.
2ThinkCentreM79HardwareMaintenanceManual

–Whenusingatester,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesor
thattester.
–Standonsuitablerubbermats(obtainedlocally,inecessary)toinsulateyouromgroundssuchas
metalfloorstripsandmachinerames.
Observethespecialsaetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein
thesaetysectionsomaintenanceinormation.Useextremecarewhenmeasuringhighvoltages.
•Regularlyinspectandmaintainyourelectricalhandtoolsorsaeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
•Neverassumethatpowerhasbeendisconnectedromacircuit.First,checkthatithasbeenpowered-o.
•Alwayslookcareullyorpossiblehazardsinyourworkarea.Examplesothesehazardsaremoistfloors,
nongroundedpowerextensioncables,powersurges,andmissingsaetygrounds.
•Donottouchliveelectricalcircuitswiththereflectivesuraceoaplasticdentalmirror.Thesuraceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
•Donotservicetheollowingpartswiththepoweronwhentheyareremovedromtheirnormaloperating
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandans
–Motorgenerators
andsimilarunits.(Thispracticeensurescorrectgroundingotheunits.)
•Ianelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyoursel.
–Switchopower.
–Sendanotherpersontogetmedicalaid.
Safetyinspectionguide
Theintentothisinspectionguideistoassistyouinidentiyingpotentiallyunsaeconditionsonthese
products.Eachmachine,asitwasdesignedandbuilt,hadrequiredsaetyitemsinstalledtoprotectusers
andservicepersonnelrominjury.Thisguideaddressesonlythoseitems.However,goodjudgmentshould
beusedtoidentiypotentialsaetyhazardsduetoattachmentoeaturesoroptionsnotcoveredbythis
inspectionguide.
Ianyunsaeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.
Considertheseconditionsandthesaetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheramecancauseseriousoratal
electricalshock).
•Explosivehazards,suchasadamagedCRTaceorbulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Theguideconsistsoaseriesostepspresentedinachecklist.Beginthecheckswiththepowero,and
thepowercorddisconnected.
Checklist:
1.Checkexteriorcoversordamage(loose,broken,orsharpedges).
Chapter1.Readthisfirst:Importantsaetyinormation3

2.Power-othecomputer.Disconnectthepowercord.
3.Checkthepowercordor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityor0.1ohmorlessbetweentheexternalgroundpinandrameground.
b.Thepowercordshouldbetheappropriatetypeasspecifiedinthepartslistings.
c.Insulationmustnotberayedorworn.
4.Removethecover.
5.Checkoranyobviousalterations.Usegoodjudgmentastothesaetyoanyalterations.
6.Checkinsidetheunitoranyobviousunsaeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsofireorsmokedamage.
7.Checkorworn,rayed,orpinchedcables.
8.Checkthatthepower-supplycoverasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingelectrostaticdischarge-sensitiedeices
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadierenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asullyeective.
WhenhandlingESD-sensitiveparts:
•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeoplewhilehandlingthepart.
•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
•Preventthepartromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.
•Usetheblacksideoagroundedworkmattoprovideastatic-reeworksurace.Thematisespecially
useulwhenhandlingESD-sensitivedevices.
•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.
Note:TheuseoagroundingsystemisdesirablebutnotrequiredtoprotectagainstESDdamage.
–AttachtheESDgroundcliptoanyrameground,groundbraid,orgreen-wireground.
–UseanESDcommongroundorreerencepointwhenworkingonadouble-insulatedor
battery-operatedsystem.Youcanusecoaxorconnector-outsideshellsonthesesystems.
–Usetheroundground-prongotheacplugonac-operatedcomputers.
Groundingrequirements
Electricalgroundingothecomputerisrequiredoroperatorsaetyandcorrectsystemunction.Proper
groundingotheelectricaloutletcanbeverifiedbyacertifiedelectrician.
4ThinkCentreM79HardwareMaintenanceManual

Safetynotices(multi-lingualtranslations)
Thecautionanddangersaetynoticesinthissectionareprovidedintheollowinglanguages:
•English
•Arabic
•Brazilian/Portuguese
•Chinese(simplified)
•Chinese(traditional)
•French
•German
•Hebrew
•Italian
•Korean
•Spanish
DANGER
Electricalcurrentrompower,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.TurneverythingOFF.
2.First,attachallcablestodevices.
3.Attachsignalcablestoconnectors.
4.Attachpowercordstooutlet.
5.TurndeviceON.
1.TurneverythingOFF.
2.First,removepowercordsromoutlet.
3.Removesignalcablesromconnectors.
4.Removeallcablesromdevices.
Chapter1.Readthisfirst:Importantsaetyinormation5

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.
≥18kg(37lb)≥32kg(70.5lb)≥55kg(121.2lb)
CAUTION:
Usesafepracticeswhenlifting.
CAUTION:
Thepowercontrolbuttononthedeiceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedeice.Thedeicealsomighthaemorethanonepower
6ThinkCentreM79HardwareMaintenanceManual

cord.Toremoeallelectricalcurrentfromthedeice,ensurethatallpowercordsaredisconnected
fromthepowersource.
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2
Chapter1.Readthisfirst:Importantsaetyinormation7

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

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2
PERIGO
Acorrenteelétricaprovenientedecabosdealimentação,deteleoneedecomunicaçõeséperigosa.
Paraevitarriscodechoqueelétrico:
•Nãoconectenemdesconectenenhumcaboouexecuteinstalação,manutençãooureconfiguração
desteprodutoduranteumatempestadecomraios.
•Conectetodososcabosdealimentaçãoatomadaselétricascorretamenteinstaladaseaterradas.
•Todoequipamentoqueorconectadoaesteprodutodeveserconectadoatomadascorretamente
instaladas.
•Quandopossível,utilizeapenasumadasmãosparaconectaroudesconectarcabosdesinal.
•Nuncaliguenenhumequipamentoquandohouverevidênciadeogo,águaoudanosestruturais.
•Antesdeabrirtampasdedispositivos,desconectecabosdealimentação,sistemasdetelecomunicação,
redesemodemsconectados,amenosqueespecificadodemaneiradierentenosprocedimentosde
instalaçãoeconfiguração.
•Conecteedesconecteoscabosconormedescritonatabelaapresentadaaseguiraoinstalar,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:Importantsaetyinormation9

Não:
•Jogueoucoloquenaágua
•Aqueçaamaisde100°C(212°F)
•Consertenemdesmonte
Descarteabateriaconormerequeridopelasleisouregulamentoslocais.
PRECAUCIÓN:
Quandoprodutosalaser(comounidadesdeCD-ROMs,unidadesdeDVD-ROM,dispositivosdefibraótica
outransmissores)estivereminstalados,observeoseguinte:
•Nãoremovaastampas.Aremoçãodastampasdeumprodutoalaserpoderesultaremexposição
prejudicialàradiaçãodelaser.Nãoexistempeçasquepodemserconsertadasnointeriordodispositivo.
•Autilizaçãodecontrolesouajustesouaexecuçãodeprocedimentosdierentesdosespecificadosaqui
poderesultaremexposiçãoprejudicialàradiação.
PERIGO
AlgunsprodutosalasercontêmdiododelaserintegradodaClasse3AoudaClasse3B.Observeoseguinte:
Radiaçãoalaserquandoaberto.Nãoolhediretamenteparaoeixeaolhonuoucominstrumentosópticose
eviteexposiçãodiretaaoeixe.
≥18kg(37lb)≥32kg(70.5lb)≥55kg(121.2lb)
CUIDADO:
Utilizeprocedimentosdesegurançaparalevantarequipamentos.
CUIDADO:
Obotãodecontroledealimentaçãododispositivoeobotãoparaligar/desligardaontedealimentação
nãodesligamacorrenteelétricaornecidaaodispositivo.Odispositivotambémpodetermaisdeumcabo
dealimentação.Pararemovertodaacorrenteelétricadodispositivo,assegurequetodososcabosde
alimentaçãoestejamdesconectadosdaontedealimentação.
10ThinkCentreM79HardwareMaintenanceManual

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2
Chapter1.Readthisfirst:Importantsaetyinormation11

1
2
12ThinkCentreM79HardwareMaintenanceManual