Lenovo ThinkPad X1 Owner's manual

ThinkPadX1Tablet
HardwareMaintenanceManual

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“otices”onpage89.
FirstEdition(February2016)
©CopyrightLenovo2016.
LIMITEDADRESTRICTEDRIGHTSOTICE:IfdataorsoftwareisdeliveredpursuanttoaGeneralServices
Administration“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContracto.
GS-35F-05925.

Contents
Aboutthisanual...........iii
Chapter1.Safetyinforation......1
Generalsafety................1
Electricalsafety...............1
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Iportantservice
inforation..............19
StrategyforreplacingFRUs.........19
Importantnoticeforreplacingasystem
board................19
Howtouseerrormessage........20
StrategyforreplacingFRUsforCTO,specialbid
model,andstandardmodels.........20
Productdefinition............20
FRUidentification............20
Chapter3.Generalcheckout.....23
Whattodofirst..............23
Checkoutguide..............24
LenovoSolutionCenter.........24
Quicktestprograms...........24
UEFIdiagnosticprogram.........25
Bootablediagnosticprograms.......25
Powersystemcheckout...........26
Checkingthebuilt-inbattery.......26
Checkingtheoperationalcharging.....27
Checkingthecoin-cellbattery.......27
Checkingtheacpoweradapter......27
Chapter4.Relatedservice
inforation..............29
Windowsrecoveryapps...........29
Resettingyourtablet..........29
Usingadvancedstartupoptions......29
Recoveringyouroperatingsystemifthe
Windows10operatingsystemfailstostart..30
CreatingandusingarecoveryUSBdrive..30
LenovofactoryrecoveryUSBkey.......30
Usingpasswords..............31
Symptom-to-FRUindex...........31
Errorcodes..............32
Intermittentproblems..........33
Undeterminedproblems.........33
Chapter5.Locations.........35
Locatingtabletcontrols,connectors,and
indicators.................35
LocatingFRUsandCRUs..........37
MajorFRUs..............38
Miscellaneouskitsandotherparts.....40
Connectorandcableguide........40
LookingupFRUinformation.........46
Chapter6.FRUreplaceent
notices................47
Screwnotices...............47
Retainingserialnumbers...........48
Chapter7.Reovingorreplacinga
FRU..................49
Generalguidelines.............49
Beforeservicingthetablet..........50
Disablingthebuilt-inbattery.......50
RemovingtheSIMcard,SDcard,andBase
Module................50
1010SIMcardcover............52
1020Backcoverassembly..........53
1030Coin-cellbattery............58
1040ThinkLEDlight............59
1050FCcard,FC-cardcable,andFCantenna
assembly.................60
1060Wireless-WAcard..........61
1070M.2solid-statedriveandsolid-state-drive
mylar..................63
1080Touchcontrollercardcable.......65
1090Infraredcameracardandinfraredcamera
cable..................66
1110Speakerassembly...........68
1120MiniDisplayPortbracket........69
1130USB-connectorbracket.........70
1140POGOcardandPOGO-cardcable....71
1150LCDcable..............73
1160Built-inbattery............74
1170Cameracable,cameracard,front-facing
cameramodule,andrear-facingcameramodule.76
1180Audiocardandaudio-cardcable.....78
1190Thermalmodule............78
1210Systemboard.............80
1211Innerframeleftandinnerframeright....82
1212Fingerprint-readermodule........83
©CopyrightLenovo2016i

1213Antennakit..............83
1214WiGigantennaassemblyandthermalspread
sheetforWiGigantennaassembly.......85
1215LCDmodule.............86
AppendixA.Notices..........89
Electronicemissionnotices..........90
Trademarks................90
AppendixB.Abbreviationand
acronytable.............91
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Aboutthisanual
ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad®products.
MachineMachinetype(MT)
ThinkPadX1Tablet20GGand20GH
Iportant:
•ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPadproducts.Use
thismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
•BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safety
information”onpage1andChapter2“Importantserviceinformation”onpage19.
©CopyrightLenovo2016iii

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Chapter1.Safetyinforation
Thischapterpresentsfollowingsafetyinformationthatyoushouldbefamiliarwithbeforeyouservice
aThinkPadtabletcomputer.
•“Generalsafety”onpage1
•“Electricalsafety”onpage1
•“Safetyinspectionguide”onpage3
•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3
•“Groundingrequirements”onpage4
•“Safetynotices(multilingualtranslations)”onpage4
Generalsafety
Followtheserulestoensuregeneralsafety:
•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Makesurethatyoucanstandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallybetweenyourfeet.
3.Useaslowliftingforce.evermovesuddenlyortwistwhenyouattempttolift.
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.
•Wearsafetyglasseswhenyouareworkinginconditionsthatmightbehazardoustoyoureyes.The
conditionsincludehammering,drilling,soldering,cuttingwire,attachingsprings,usingsolvents,and
soon.
•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.
•Reinstallotherpartsthatyouhaveremoved.
Electricalsafety
Observethefollowingruleswhenworkingonelectricalequipment.
©CopyrightLenovo20161

Iportant:
•Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterial
thatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.
•Manycustomershave,neartheirequipment,rubberfloormatsthatcontainsmallconductivefibersto
decreaseelectrostaticdischarges.Donotusethistypeofmattoprotectyourselffromelectricalshock.
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchordisconnectthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–Removingorinstallingmainunits
•Beforeyoustarttoworkonthemachine,disconnectthepowercord.Ifyoucannotunplugit,poweroff
thewallboxthatsuppliespowertothemachine,andlockthewallboxintheoffposition.
•Ifyouworkonamachinethathasexposeelectricalcircuits,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
–Motorgenerators
–Similarunitstolistedabove
Thispracticeensurescorrectgroundingoftheunits.
•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.
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Safetyinspectionguide
Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach
machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians
frominjury.Thisguideaddressesonlythoseitems.Youshouldusegoodjudgmenttoidentifypotential
safetyhazardsduetoattachmentofnon-ThinkPadfeaturesoroptionsnotcoveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)
•Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning
ofeveryservicetask.Beginthecheckswiththepoweroffandthepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Turnoffthetablet.
3.Disablethebuilt-inbattery.Fortheinstructiononhowtodisablethebuilt-inbattery,see“Disablingthe
built-inbattery”onpage50.
4.Disconnectthepowercord.
5.Checkthepowercordforthefollowing:
a.Makesurethatathird-wiregroundconnectorisingoodcondition.Useametertomeasurethe
third-wiregroundcontinuity.Ensurethatthecontinuitybetweentheexternalgroundpinandthe
framegroundis0.1ohmorless.
b.Thepowercordisthetypespecifiedinthepartslist.
c.Insulationisnotfrayedorworn.
6.RemovetheLCDmoduleassembly.
7.Checkforcrackedorbulgingbuilt-inbatteries.
8.Checkforanyobviousnon-ThinkPadalterations.Usegoodjudgmentastothesafetyofany
non-ThinkPadalterations.
9.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.
10.Checkforworn,frayed,orpinchedcables.
11.Checkthatthebuilt-inbatteryfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingdevicesthataresensitivetoelectrostaticdischarge
Anytabletpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthecharge.Sothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Chapter1.Safetyinformation3

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.
–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor
referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.
–Usetheroundgroundprongoftheacplugonac-operatedtablets.
Groundingrequireents
Electricalgroundingofthetabletisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.
Safetynotices(ultilingualtranslations)
Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:
•English
•Arabic
•BrazilianPortuguese
•French
•German
•Hebrew
•Japanese
•Korean
•Spanish
•T raditionalChinese
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