Page is loading ...
HardwareMaintenanceManual
ThinkPadT550andW550s
Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage103.
FirstEdition(January2015)
©CopyrightLenovo2015.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............1
Safetyinspectionguide............2
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Importantservice
information..............19
StrategyforreplacingFRUs.........19
Strategyforreplacingasolid-statedrive...19
Importantnoticeforreplacingasystem
board................20
Howtouseerrormessage........20
StrategyforreplacingFRUsforCTO,special-bid,
andstandardmodels............20
Productdefinition............20
FRUidentification............20
Chapter3.Generalcheckout.....23
Whattodofirst..............23
Checkoutguide..............24
LenovoSolutionCenter.........24
Quicktestprograms...........24
UEFIdiagnosticprogram.........25
Bootablediagnosticprograms.......25
Powersystemcheckout...........26
Checkingtheacpoweradapter......26
Checkingthebatteryandoperational
charging...............27
Checkingthecoin-cellbattery.......27
Chapter4.Relatedservice
information..............29
Restoringthefactorycontentsbyusingthe
productRecoveryDiscSet..........29
UsingtheWindowsrecoveryprogramsonthe
Windows8.1operatingsystem........30
Passwords................32
Power-onpassword...........32
Harddiskpassword...........32
Supervisorpassword..........33
Howtoremovethepower-onpassword...33
Howtoremovetheharddiskpassword...34
Powermanagement............34
Screenblankmode(fortheWindows7
operatingsystemonly)..........34
Sleepmode..............34
Hibernationmode...........35
Symptom-to-FRUindex...........35
Numericerrorcodes..........36
Errormessages............37
Beepsymptoms............37
No-beepsymptoms...........38
LCD-relatedsymptoms.........38
Intermittentproblems..........38
Undeterminedproblems.........39
Chapter5.Locations.........41
Locatingcomputercontrols,connectors,and
indicators.................41
Frontview...............41
Left-sideview.............42
Bottomview..............42
LocatingFRUsandCRUs..........43
MajorFRUs..............44
LCDFRUs..............45
MiscellaneouspartsandotherFRUs....48
LookingupFRUinformation.........49
Chapter6.FRUreplacement
notices................51
Commonservicetools...........51
Screwnotices...............51
Retainingserialnumbers...........52
Restoringtheserialnumberofthesystem
unit.................52
RetainingtheUUID...........53
ReadingorwritingtheECAinformation...54
Chapter7.Removingorreplacinga
FRU..................55
Generalguidelines.............55
Beforeservicingthecomputer........56
Disablingthebuilt-inbattery.......56
RemovingthemicroSIMcard.......56
RemovingamajorFRU...........56
1010Removablebattery.........57
1020Basecoverassembly........57
1030Keyboard.............59
©CopyrightLenovo2015
i
1040Storage-drivestabilizerbar,internal
storagedrive,harddiskdrivecable,andhard
diskdrivebracket............64
1050Memorymodule..........66
1060WirelessLANcard.........66
1070WirelessWANcard.........67
1080M.2solid-statedrive........68
1090Coin-cellbattery..........69
1110dc-inbracketanddc-incable
assembly...............70
1120Built-inbatteryordummybattery...71
1130Thermalfan............73
1140Speakerassembly.........75
1150Smartcardassemblyordummysmart
card.................76
1160Fingerprintreaderassembly.....77
1170BoardforthetrackpadandTrackPoint
buttons................78
1180Systemboardassembly.......79
1190LCDunit.............81
1210Powerbuttonboard........83
1220Keyboardassembly.........84
RemovinganLCDFRUformodelswithouttouch
panel..................84
2010LCDbezelassembly........85
2020LCDpanelandLCDcable......85
2030Hingesandhingebrackets......86
2040Camera/microphonecard......87
2050LEDcableassembly........88
2060AntennakitandLCDrearcover
assembly...............89
RemovinganLCDFRUformodelswithtouch
panel..................92
3010LCDfrontsheetbezel........92
3020LCDpanelassemblyandLCDcable..92
3030Hinges..............94
3040Camera/microphonecard......95
3050Touchsensorcard.........96
3060LEDcableassembly........97
3070AntennakitandLCDrearcover
assembly...............98
AppendixA.Notices.........103
Electronicemissionsnotices.........104
Trademarks................104
iiHardwareMaintenanceManual
Aboutthismanual
ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad
®
products.
ThinkPadT550
Machinetypes(MT):20CJand20CK
ThinkPadW550sMT:20E1and20E2
Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.
Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPad
products.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safetyinformation”
onpage1andChapter2“Importantserviceinformation”onpage19.
©CopyrightLenovo2015
iii
ivHardwareMaintenanceManual
Chapter1.Safetyinformation
Thischapterpresentsfollowingsafetyinformationthatyoumustbefamiliarwithbeforeyouservicea
ThinkPadnotebookcomputer.
•“Generalsafety”onpage1
•“Electricalsafety”onpage1
•“Safetyinspectionguide”onpage2
•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3
•“Groundingrequirements”onpage4
•“Safetynotices(multilingualtranslations)”onpage4
Generalsafety
Followtheserulestoensuregeneralsafety:
•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Makesurethatyoucanstandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallybetweenyourfeet.
3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.Donotattempttoliftanyobjectthatweighsmorethan16kg(35lb)orthat
youthinkistooheavyforyou.
•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.
•Beforeyoustartthemachine,makesurethatotherservicetechniciansandthecustomer'spersonnelare
notinahazardousposition.
•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing
themachine.
•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.
•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Makesurethatyour
sleevesarefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.
•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,about8
centimeters(3inches)fromtheend.
•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing.
Attention:Metalobjectsaregoodelectricalconductors.
•Wearsafetyglasseswhenyouarehammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.
•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.
•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.
•Fanlouversonthemachinehelptopreventoverheatingofinternalcomponents.Donotobstructfan
louversorcoverthemwithlabelsorstickers.
Electricalsafety
Observethefollowingruleswhenworkingonelectricalequipment.
Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberfloormatsthatcontainsmallconductivefiberstodecreaseelectrostaticdischarges.
Donotusethistypeofmattoprotectyourselffromelectricalshock.
©CopyrightLenovo2015
1
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–Removingorinstallingmainunits
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topower-offthewallboxthatsuppliespowertothemachine,andtolockthewallboxintheoffposition.
•Ifyouhavetoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Attention:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Attention:Anelectricalshockcanoccuronlywhenthereisacompletecircuit.Byobservingtheabove
rule,youmaypreventacurrentfrompassingthroughyourbody.
–Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor
thattester.
–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas
metalfloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;Instructionsforthese
precautionsareinthesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuring
highvoltages.
•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.
•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistfloors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.
•Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorgenerators
–Similarunitsaslistedabove
Thispracticeensurescorrectgroundingoftheunits.
•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.
Safetyinspectionguide
Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach
machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians
frominjury.Thisguideaddressesonlythoseitems.Y oushouldusegoodjudgmenttoidentifypotential
safetyhazardsduetoattachmentofnon-ThinkPadfeaturesoroptionsnotcoveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.
2HardwareMaintenanceManual
Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)
•Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning
ofeveryservicetask.Beginthecheckswiththepoweroff,andthepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Poweroffthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityfor0.1ohmorlessbetweentheexternalgroundpinandtheframeground.
b.Thepowercordshouldbetheauthorizedtypespecifiedforyourcomputer.Goto:
http://www.lenovo.com/serviceparts-lookup
c.Insulationmustnotbefrayedorworn.
4.Checkforcrackedorbulgingbatteries.
5.Removethecover.
6.Checkforanyobviousnon-ThinkPadalterations.Usegoodjudgmentastothesafetyofany
non-ThinkPadalterations.
7.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.
8.Checkforworn,frayed,orpinchedcables.
9.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingdevicesthataresensitivetoelectrostaticdischarge
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD.)ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeople.
•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.
•Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen
handlingESD-sensitivedevices.
•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.
Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.
–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.
Chapter1.Safetyinformation3
–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor
referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.
–Usetheroundgroundprongoftheacplugonac-operatedcomputers.
Groundingrequirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.
Safetynotices(multilingualtranslations)
Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:
•English
•Arabic
•BrazilianPortuguese
•French
•German
•Hebrew
•Japanese
•Korean
•Spanish
•TraditionalChinese
DANGER
DANGER
DANGER
4HardwareMaintenanceManual
6HardwareMaintenanceManual
PERIGO
PERIGO
PERIGO
PERIGO
DANGER
8HardwareMaintenanceManual
DANGER
VORSICHT
VORSICHT
VORSICHT
VORSICHT
10HardwareMaintenanceManual
12HardwareMaintenanceManual
14HardwareMaintenanceManual
/
