Lenovo ThinkPad X1 Carbon Owner's manual

HardwareMaintenanceManual
ThinkPadX1CarbonandX1Yoga
Machinetypes:20FB,20FC,20FQ,and20FR

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendiA“Notices”onpage107.
SecondEdition(May2017)
©CopyrihtLenovo2016,2017.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuanttoaGeneralServices
Administration“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
StrategyforreplacinganM.2solid-state
drive.................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
RecoveryoverviewfortheWindows10operating
system..................30
Resettingyourcomputer.........30
Usingadvancedstartupoptions......30
RecoveringyouroperatingsystemifWindows
10failstostart.............30
CreatingandusingarecoveryUSBdrive..31
Passwords................31
Power-onpassword...........31
Harddiskpassword...........32
Supervisorpassword..........32
Howtoremovethepower-onpassword...32
Howtoremovetheharddiskpassword...33
Powermanagement............33
Screenblankmode(fortheWindows7
operatingsystemonly)..........33
Sleepmode..............34
Hibernationmode...........34
Symptom-to-FRUinde...........35
Numericerrorcodes..........35
Errormessages............36
Beepsymptoms............36
No-beepsymptoms...........37
LCD-relatedsymptoms.........37
Intermittentproblems..........38
Undeterminedproblems.........38
Chapter5.Locations.........39
Locatingcomputercontrols,connectors,and
indicators.................39
Frontview...............39
Bottomview..............41
Rearview...............41
Statusindicators............42
LocatingFRUsandCRUs..........43
MajorFRUs..............45
LCDFRUs..............49
MiscellaneouspartsandotherFRUs....52
Connectorandcableguide........53
LookingupFRUinformation.........56
Chapter6.FRUreplacement
notices................57
Commonservicetools...........57
Screwnotices...............57
Retainingserialnumbers...........58
Restoringtheserialnumberofthesystem
unit.................58
RetainingtheUUID...........59
ReadingorwritingtheECAinformation...60
Chapter7.Removinorreplacina
FRU..................61
Generalguidelines.............61
Beforeservicingthecomputer........62
©CopyrightLenovo2016,2017i

Removingeternaldevices........62
Disablingthebuilt-inbattery.......62
RemovingthemicroSIMcard......62
RemovingThinkPadPenPro.......62
RemovingamajorFRU...........63
1010Basecoverassembly........63
1020M.2SSD.............65
1030WLANcard............66
1040WWANcard............66
1050Coin-cellbattery..........67
1060Thermalfanassembly........68
1070Speakerassembly.........69
1080Battery..............71
1090Fingerprintreaderassemblyand
fingerprintreadercable.........72
1100Trackpadcable,trackpadsupport
bracket,andtrackpadassembly......74
1110NFCmodule,NFCcable,andNFC
antenna(forThinkPadX1Yogaonly)....75
1120Pencharger(forThinkPadX1Yoga
only).................76
1130Systemboardassembly.......76
1140Powerbuttoncardand
power-button-cardcable.........79
1150LCDunit.............81
1160Keyboardassembly(forThinkPadX1
Yogaonly)...............84
RemovinganLCDFRUforThinkPadX1Carbon.86
2010LCDbezelassembly........86
2020Hinges..............87
2030LCDpanelassemblyandLCDcable..88
2040Sensorcard............89
2050Camera/microphonecard......90
2060WiGigcableandantennakit.....91
2070Camera/LEDcableassembly.....95
RemovinganLCDFRUforThinkPadX1Yoga..95
3010Stripecover............95
3020LCDpanelassemblyandLCDcable..96
3030Camera/microphonecardandsensor
card.................99
3040Hinges..............101
3050WiGigcableandantennakit.....102
3060LEDcableassembly........106
AppendixA.Notices.........107
Electronicemissionsnotices.........108
Trademarks................108
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Aboutthismanual
ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad®products.
ThinkPadX1CarbonMachinetypes(MT):20FBand20FC
ThinkPadX1YogaMT:20FQand20FR
Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.
Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPad
products.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safetyinformation”
onpage1andChapter2“Importantserviceinformation”onpage19.
©CopyrightLenovo2016,2017iii

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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.
©CopyrightLenovo2016,20171

•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–Removingorinstallingmainunits
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topower-offthewallbothatsuppliespowertothemachine,andtolockthewallbointheoffposition.
•Ifyouhavetoworkonamachinethathasexposeelectricalcircuits,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.Useetremecarewhenmeasuring
highvoltages.
•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.
•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Eamplesofthesehazardsaremoistfloors,
nongroundedpoweretensioncables,powersurges,andmissingsafetygrounds.
•Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorgenerators
–Similarunitsaslistedabove
Thispracticeensurescorrectgroundingoftheunits.
•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.
Safetyinspectionuide
Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach
machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians
frominjury.Thisguideaddressesonlythoseitems.Youshouldusegoodjudgmenttoidentifypotential
safetyhazardsduetoattachmentofnon-ThinkPadfeaturesoroptionsnotcoveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.
2HardwareMaintenanceManualThinkPadX1CarbonandX1Yoga

Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)
•Eplosivehazards,suchasadamagedCRTfaceorabulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning
ofeveryservicetask.Beginthecheckswiththepoweroff,andthepowercorddisconnected.
Checklist:
1.Checketeriorcoversfordamage(loose,broken,orsharpedges).
2.Poweroffthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityfor0.1ohmorlessbetweentheeternalgroundpinandtheframeground.
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.
Handlindevicesthataresensitivetoelectrostaticdischare
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD.)ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specificESDprocedureswhentheyeceedtherequirementsnotedhere.
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 oucanusecoaorconnector-outsideshellsonthesesystems.
–Usetheroundgroundprongoftheacplugonac-operatedcomputers.
Groundinrequirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.
Safetynotices(multilinualtranslations)
Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:
•English
•Arabic
•BrazilianPortuguese
•French
•German
•Hebrew
•Japanese
•Korean
•Spanish
•TraditionalChinese
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