Lenovo ThinkPad 11e Chromebook 3rd Gen, ThinkPad Yoga 11e Chromebook 3rd Gen Hardware Maintenance Manual [en, ar, cs, da, de, es, fi, fr, he, id, it, nb, nl, pl, pt, ru, sr, sv, th, uk, zc, zh]

ThinkPad11eChromebook3rdGenand
ThinkPadYoga11eChromebook3rdGen
HardwareMaintenanceManual

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage79.

FirstEdition(March2016)

©CopyrightLenovo2016.

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

Powermanagement............19

Symptom-to-FRUindex...........19

LCD-relatedsymptoms.........20

Intermittentproblems..........20

Undeterminedproblems.........21

OverviewoftheChromebookUSBrepairshim..21

Creatingtherepairshim.........22

Removingandreinstallingthewrite-protect

screw................22

Usingtherepairshim..........23

Factorytestitems............24

StrategyforreplacingFRUs.........25

Importantnoticeforreplacingasystem

board................25

Howtouseerrormessage........25

StrategyforreplacingFRUsforCTO,special-bid,

andstandardmodels............25

Productdefinition............25

FRUidentification............26

Chapter3.Generalcheckout.....27

Whattodofirst..............27

Powersystemcheckout...........28

Checkingtheacpoweradapter......28

Checkingthebatteryandoperational

charging...............29

Chapter4.Functionkeys.......31

Chapter5.Locations.........33

Locatingcomputercontrols,connectors,and

indicators.................33

Frontview...............33

Left-sideview.............35

Bottomview..............36

LocatingFRUsandCRUs..........36

MajorFRUs..............37

LCDFRUs..............39

Miscellaneousparts...........42

Connectorandcableguide........42

LookingupFRUinformation.........45

Chapter6.FRUreplacement

notices................47

Commonservicetools...........47

Screwnotices...............47

Hardwareidentity.............48

PrerequisiteforreplacingaFRU........48

Chapter7.Removingorreplacinga

FRU..................51

Generalguidelines.............51

Disablingthebattery............52

1010Bottomcover.............52

1020Battery...............53

1030WirelessLANcard...........54

1040Keyboard..............55

1050KeyboardbezelassemblyandSDcard

reader..................57

1060I/Obracket,dc-inbracket,systemboard

assembly,dc-inconnector,andheatsink....60

1070LCDunit...............65

RemovinganLCDFRUformodelswithouttouch

panel..................66

2010LCDbezelassembly........66

2020LCDpanelandLCDcable......67

2030Camera/microphoneboard......69

2040Hinges..............69

RemovinganLCDFRUformodelswithtouch

panel..................71

3010LCDpanelassembly,LCDcable,and

LCDpanelbrackets...........71

3020Camera/microphoneboardandsensor

board................74

3030Hinges..............76

AppendixA.Notices..........79

Electronicemissionsnotices.........80

Trademarks................80

AppendixB.Abbreviationtable....81

©CopyrightLenovo2016

i

iiThinkPad11eChromebook3rdGenandThinkPadY oga11eChromebook3rdGenHardwareMaintenanceManual

Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad

®

products.

ThinkPad11eChromebook3rdGenMachinetypes(MT)20GDand20GF

ThinkPadY oga

®

11eChromebook3rdGenMachinetypes(MT)20GCand20GE

Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.

Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPad
products.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safetyinformation”
onpage1andChapter2“Importantserviceinformation”onpage19.

©CopyrightLenovo2016

iii

ivThinkPad11eChromebook3rdGenandThinkPadY oga11eChromebook3rdGenHardwareMaintenanceManual

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

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.

2ThinkPad11eChromebook3rdGenandThinkPadY oga11eChromebook3rdGenHardwareMaintenanceManual

Considertheseconditionsandthesafetyhazardstheypresent:

•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)

•Explosivehazards,suchasadamagedbatteryorabulgingcapacitor

•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

•T raditionalChinese

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4ThinkPad11eChromebook3rdGenandThinkPadY oga11eChromebook3rdGenHardwareMaintenanceManual

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10ThinkPad11eChromebook3rdGenandThinkPadY oga11eChromebook3rdGenHardwareMaintenanceManual

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12ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

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16ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

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18ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Chapter2.Importantserviceinformation

Thischapterintroducesfollowingimportantserviceinformationthatappliestoallmachinetypessupported
bythismanual:

•“StrategyforreplacingFRUs”onpage25
–“Importantnoticeforreplacingasystemboard”onpage25
–“Howtouseerrormessage”onpage25

•“StrategyforreplacingFRUsforCTO,special-bid,andstandardmodels”onpage25
–“Productdefinition”onpage25
–“FRUidentification”onpage26

Important:

•AdvisecustomerstovisittheLenovo
softwarefixes,downloadthedrivers,andfollowtheon-screeninstructionstoinstallthedrivers.For
additionalassistance,customersmightcalltheLenovoCustomerSupportCenter.Telephonenumbersfor
theLenovoSupportCenterareavailableat:
http://www.lenovo.com/support/phone

•ServicetrainingdocumentsforLenovoauthorizedservicetechniciansareavailableatthefollowingWeb
site.ThedisassemblyandreassemblyvideosthatshowtheFRUremovalandreplacementprocedures
arecontainedinthedocuments.
http://www.lenovoservicetraining.com

®

SupportWebsiteathttp://www.lenovo.com/supporttoviewthe

Powermanagement

Toreducepowerconsumption,putthecomputerintosleepmodeifyoudonotuseit.

Whenthecomputerenterssleepmode,thefollowingeventsoccur:

•TheLCDispoweredoff.

•Themicroprocessorstops.

Toentersleepmode,closethelidifyouareloggedin.T oresumefromsleepmode,openthecomputer
lidandpressanykey.

Note:Ifyouarenotloggedin,closingthelidwillshutdownthecomputer.

Incertaincircumstances,thecomputergoesintosleepmodeautomatically:

•Afteraperiodofinactivity

•Whenthebatteryindicatorblinksorange,indicatingthatthebatterypowerislow

Note:Thecomputerdoesnotacceptanyinputimmediatelyafteritenterssleepmode.Waitafewseconds
beforetakinganyactiontoreenteroperationmode.

Also,ineitherofthefollowingevents,thecomputerautomaticallyreturnsfromsleepmodeandresumes
operation:

Symptom-to-FRUindex

Thissectioncontainsfollowinginformation:

•“LCD-relatedsymptoms”onpage20

•“Intermittentproblems”onpage20

•“Undeterminedproblems”onpage21

©CopyrightLenovo2016

19

Thesymptom-to-FRUindexinthissectionlistssymptomsanderrorsandtheirpossiblecauses.Themost
likelycauseislistedfirst,inboldfacetype.

Note:DotheFRUreplacementorotheractionsinthesequenceshowninthecolumnheaded“FRUor
action,insequence. ”IfreplacingaFRUdoesnotsolvetheproblem,puttheoriginalpartbackinthe
computer.DonotreplaceanondefectiveFRU.

Thisindexcanalsohelpyoudetermine,duringregularservicing,whatFRUsarelikelytoneedtobe
replacednext.

AnumericerrorisdisplayedforeacherrordetectedinPOSTorsystemoperation.Inthedisplays,ncan
beanynumber.

Ifnonumericcodeisdisplayed,checkthenarrativedescriptionsofsymptoms.Ifthesymptomisnot
describedthere,goto“Intermittentproblems”onpage20.

Note:ForadevicenotsupportedbydiagnosticcodesintheThinkPadnotebookcomputers,seethe
manualforthatdevice.

LCD-relatedsymptoms

Important:TheTFTLCDforthenotebookcomputercontainsmanythin-filmtransistors(TFTs).The

presenceofasmallnumberofdotsthataremissing,discolored,oralwayslightedischaracteristicofTFT
LCDtechnology,butexcessivepixelproblemscancauseviewingconcerns.IftheLCDyouareservicinghas
twoorlessvisibledefectivepixels,itshouldnotbeconsideredfaulty.However,iftheLCDhasthreeormore
visibledefectivepixels,itwillbedeemedasdefectivebyLenovoanditshouldbereplaced.

Notes:

•ThispolicyappliestoallThinkPadnotebookspurchasedon1January,2008orlater.

•LenovowillnotprovidereplacementiftheLCDiswithinspecificationaswecannotguaranteethat
anyreplacementLCDwillhavezeropixeldefects.

•OnepixelconsistsofR,G,Bsub-pixels.

Table1.LCD-relatedsymptoms

Symptomorerror

Nobeep,system-statusindicatoron,andablankLCD
duringPOST.

•LCDbacklightnotworking.

•LCDtoodark.

•LCDbrightnesscannotbeadjusted.

•LCDcontrastcannotbeadjusted.

•LCDscreenunreadable.

•Charactersmissingpixels.

•Screenabnormal.

•Wrongcolordisplayed.

HorizontalorverticallinesdisplayedonLCD.LCDassembly

FRUoraction,insequence

Systemboard

1.ReseattheLCDconnectors.

2.LCDassembly

3.Systemboard

1.Seeimportantnotefor“LCD-relatedsymptoms. ”

2.ReseatallLCDconnectors.

3.LCDassembly

4.Systemboard

Intermittentproblems

Intermittentsystemhangproblemscanbeduetoavarietyofcausesthathavenothingtodowithahardware
defect,suchascosmicradiation,electrostaticdischarge,orsoftwareerrors.FRUreplacementshouldbe
consideredonlywhenaproblemrecurs.

Whenanalyzinganintermittentproblem,dothefollowing:

20ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

1.Runthediagnostictestforthesystemboardinloopmodeatleast10times.

2.Ifnoerrorisdetected,donotreplaceanyFRUs.

3.Ifanyerrorisdetected,replacetheFRUshownbytheFRUcode.Rerunthetesttoverifythatno
moreerrorsexist.

Undeterminedproblems

Ifthediagnostictestsdidnotidentifytheadapterordevicethathasfailed,ifwrongdevicesareinstalled,
orifthesystemsimplyisnotoperating,followtheseprocedurestoisolatethefailingFRU(donotisolate
FRUsthathavenodefects).

Verifythatallattacheddevicesaresupportedbythecomputer.

Verifythatthepowersupplybeingusedatthetimeofthefailureisoperatingcorrectly.See“Powersystem
checkout”onpage28.

1.Turnoffthecomputer.

2.VisuallycheckeachFRUfordamage.ReplaceanydamagedFRU.

3.Removeordisconnectallofthefollowingdevices:
a.Non- ThinkPaddevices
b.Printer,mouse,andotherexternaldevices
c.Externaldiskettedriveoropticaldrive
d.Wirelesscards

4.Turnonthecomputer.

5.Determinewhethertheproblemhasbeensolved.

6.Iftheproblemdoesnotrecur,reconnecttheremoveddevicesoneatatimeuntilyoufindthefailingFRU.

7.Iftheproblemremains,replacethefollowingFRUsoneatatime(donotreplaceanondefectiveFRU):
a.Systemboard
b.LCDassembly

OverviewoftheChromebookUSBrepairshim

YoucanuseaChromebookUSBrepairshim(hereafterreferredtoastherepairshim)astherecoverysolution
ontheChromeOSoperatingsystem.

Therepairshimisabootabledevicethatisrequiredtoservicethecomputer.Therepairshimisusedfor
thefollowingpurposes:

•Diagnoseproblemsandrestorethesystemtothefactory-defaultsettings.

•Refreshthesystemwiththelatestfirmwareandsoftware.

TherepairshimisnotnecessarywhenaCustomerReplaceableUnit(CRU)isreplaced.Ifanon-CRUis
broken,orthereisastrongsuspicionthataparticularnon-CRUisdefective,itcanbereplaceddirectly.
Otherwise,therepairshimmustbeusedtodiagnoseproblemsbeforeanynon-CRUisreplaced.

ThefollowingisthelistofCRUsforyourcomputer:

•acpoweradapter

•Powercord

•Bottomcover

ForCRUdefinition,see“LocatingFRUsandCRUs”onpage36

.

Chapter2.Importantserviceinformation21

Creatingtherepairshim

AsaLenovoservicetechnician,dothefollowingtocreatetherepairshim:

1.PrepareaUSBstoragedevicewithatleast8gigabyte(GB)space.TherequiredUSBstoragecapacity
dependsonthesizeoftherecoveryimage.

Attention:CreatingtherepairshimwilldeletealldatastoredontheUSBdevice.T oavoiddataloss,
makeabackupcopyofallthedatathatyouwanttokeep.

2.DownloadlatestversionoftherepairshimimagefromtheLenovoSupportWebsiteat:
http://www.lenovo.com/supporttocreatearepairshim.ALenovoservicecredentialisrequired.

Note:Ensurethatyoucreatetherepairshimusingthelatestversionoftherepairshimimage.Usingan
earlierversionmightcausetherepairprocesstofail.

3.Extractthedownloadedfilethatcontainstherepairshimimage.

4.DownloadtheWin32DiskImagertoolfromhttp://sourceforge.net/projects/win32diskimager/.

5.Runtheimagertoolandfollowtheon-screeninstructionstocreatetherepairshim.

6.Afterusingtherepairshim,ifyouwanttorecovernormalusageoftheUSBstoragedevice,youwillneed
toformatthedevice.Otherwise,youcannotusethestoragespaceonthedevice.

Removingandreinstallingthewrite-protectscrew

Bydefault,theon-boardRead-OnlyMemories(ROMs)aresetaswrite-protected.Beforerefreshingthe
Chromebookfirmware,settheROMsasunprotectedbyremovingthewrite-protectscrewonthesystem
board.Aftertherefresh,reinstallingthewrite-protectscrew.

Toremovethewrite-protectscrew,dothefollowing:

1.Disablethebattery.See“Disablingthebattery”onpage52.

2.Disconnecttheacpoweradapterandallcablesfromthecomputer,andthenremovethebottom
cover.See“1010Bottomcover”onpage52.

3.Removethebattery.See“1020Battery”onpage53.

4.Removethekeyboard.See“1040Keyboard”onpage55.

5.Removethekeyboardbezelassembly.See“1050KeyboardbezelassemblyandSDcardreader”
onpage57.

22ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

6.Locatethewrite-protectscrewonthesystemboardasshowninthefollowingillustration.Toturnoffthe
write-protectfunction,removethewrite-protectscrew.

7.Afteryouhaveremovedthewrite-protectscrew,reassemblethecomputer.Reconnecttheacpower
adapterandallcables.

8.Toturnonthewrite-protectfunction,followthepreviousstepstolocatetheholeforthewrite-protect
screwandreinstallthescrew.Thenreassembleyourcomputerandreconnectthecables.

Usingtherepairshim

Tousetherepairshimthatyouhavecreated,dothefollowing:

1.Turnoffthewrite-protectfunction.See“Removingandreinstallingthewrite-protectscrew”onpage22.

2.Attachtheacpoweradaptertothepowerconnectoronthecomputer.Pressandholdescandthe

refreshkey,andthenpressthepowerbuttonorpowerkeytostartthecomputerandenter
recoverymode.

Note:Afteryouturnoffthewrite-protectfunction,thecomputerwillbeinDevelopermode.Insome
cases,thecomputermightnotinDevelopermodeafteryouturnoffthewrite-protectfunction(step1).If
thishappens,pressandholdctrl+dwhentherecoveryscreenisdisplayed,andthenpressenter.The
computerautomaticallyrestartsandentersDevelopermodeafterseveralminutes.Whenprompted
tologontothecomputer,turnoffthecomputer.Thenrepeatstep2tostartthecomputerandenter
recoverymode.

3.Whentherecoveryscreenisdisplayed,connecttherepairshimtoanavailableUSBconnectorofthe
computer.Therepairshimwillupdatethefirmwareandimageautomatically.Whenprompted,choose
“i”toinstalltheshimtothecomputer.Whentheupdateprocessfinishes,thecomputerrestartsand
entersthefactory-test-imageenvironment.

Note:Theupdateprocessisautomatic,andtakeslessthan10minutes.Informationabouttheupdate
statuswillbedisplayedonthecomputerscreenduringtheprocess.

4.Removetherepairshimandputitinasafeplace.TheRuninteststartsautomaticallyandyouwillbe
promptedfortheVitalProductData(VPD).IftheVPDisalreadypresent,youmayselectamodelname
andpressesctocontinue.Ifthewrite-protectfunctionisstillon,thisstepwillnotproceed.

Chapter2.Importantserviceinformation23

Note:Ifthesystemboardisreplaced,youarerequiredtoreenterVPD,a20-charactermachinetype
andmodel(MTM)andserialnumber(SN)string.Thestringconsistsofthe7-digitmachinetype,3-digit
modelnumber,8-digitSN,andisprecededbythecharacters“1S”.Y oucanfindtheMTMandSN
informationonthebottomcover.T olocatetheMTMandSNlabel,see
“Applyinglabelstothebottomcover”onpage53
IftheMTMandSNinformationisalreadydisplayed,andmatchthenumbersshownonbottomcover,
pressesctoleavethevaluesastheyare.

5.TheStresstestwillrunfor10minutesandthentheFinalAssemblyTestandPack(FATP)sectionwillstart.
Thissectionincludestheindependenttestsforeachcomponent.Followtheinstructionsonthescreen
tostartthetests.Forinformationaboutthefactorytestitems,see“Factorytestitems”onpage24

6.Ifthefactorytestitemsrevealadefectivecomponent,turnoffthecomputer,disconnecttheacpower
adapter,andthenreplacethedefectivecomponent.Forinformationaboutthereplacementprocedure,
seeChapter7“RemovingorreplacingaFRU”onpage51

7.Turnonthewrite-protectfunction.See“Removingandreinstallingthewrite-protectscrew”onpage22.

8.Turnonthecomputer.Thecomputerentersthefactory-test-imageenvironmentagain.Itis
recommendedthatyourunStressTestandFATPTeststoensurethatnewcomponentsfunction
correctly.

Note:Itisnotnecessarytoturnoffthewrite-protectfunctionagainifadditionalcomponentsmust
bereplaced.

9.RuntheGoogleRequiredTests.Ifthetestsfinishsuccessfully,alldatastoredonthecomputerwillbe
deletedandthecomputerwillbeturnedoff.IftheGoogleRequiredT estsfails,refertothecommon
mistakesthatleadtoGoogleRequiredTestsfailurein“Factorytestitems”onpage24.

.

.

.

Note:Ifanytestismarkedasfailed,thefinalprocesscannotbecompleted.Thefinalprocesscanbe
forcedtoendbypressingf.Donotforcethefinalprocesstoendwhenacomponentfailsthetest.Force
thefinalprocesstoendonlywhenthetesthastobebypassedbecauseitcannotbeperformed.

10.Aftertherepairprocessfinishes,thebatteryisdisabled.Thesystemisinacleanout-of-boxstate.In
ordertoturnonthecomputer,attachtheacpoweradaptertothepowerconnectoronthecomputer
first.Ifapplicable,customersmustre-enrollthesystemforenterpriseenrollment.

Factorytestitems

Afterthesystementersthefactory-test-imageenvironment,factorytestitemswillrun.Thefactorytest
processcontainsthefollowingthreetypesoftests:

•StressT est:TheStressT estisdesignedtotesthowthesystemfunctionsunderstressbyrunningthe
maximumworkloadapplications.TheStressTestincludesthetestofmemory,microprocessor,and
graphicscard.Thetesttakesabout10minutestofinish.

•FA TPT est:TheFATPT estisdesignedtotesttheindividualcomponenttoverifyitsfunction,suchas
theTPM,display,audio,camera,keyboard,andothercomponents.Itisrecommendedthatyourunall
theFA TPT estitems.SometestitemsmightrequireanHDMImonitororanSDcard.Ifthedevicesare
notavailable,thetestscanbebypassed,butwiththeoveralltestmarkedasfailed.Thiswillrequirethe
finalizedstepoftheGoogleRequiredT eststobeforcedinordertocompletetheservicingofthecomputer
(seestep9in“Usingtherepairshim”onpage23

•GoogleRequiredT ests:GoogleRequiredTestschecksthesystemstatusandhelpsresetthesystemback
tothefactory-defaultsettings.Ifanytestfails,thesystemcannotbefinalized.Thefollowingitemsare
somecommonmistakesthatleadtoGoogleRequiredT estsfailure:

).

–HWIDmismatch:EachChromebookhasaknownhardwareconfiguration.Eachconfigurationis

assignedanHWID.HWIDmismatchcanbecausedbyusingunauthorizedparts,ormissingparts.
ForinformationaboutHWID,see“Hardwareidentity”onpage48.

24ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Ifthewrite-protectfunctionisnotturnedoffbeforerecoveringthecomputerwiththerepairshim,it
willalsocauseHWIDmismatch.Forinstructionsonhowtoturnoffthewrite-protectfunction,see
“Removingandreinstallingthewrite-protectscrew”onpage22

–Write-protectfunctionisoff:Systemcannotbefinalizeduntilthewrite-protectfunctionisturned

backon.

.

StrategyforreplacingFRUs

UsethefollowingstrategytopreventunnecessaryexpenseforreplacingandservicingFRUs:

•IfyouareinstructedtoreplaceaFRUbutthereplacementdoesnotcorrecttheproblem,reinstallthe
originalFRUbeforeyoucontinue.

•Somecomputershavebothaprocessorboardandasystemboard.Ifyouareinstructedtoreplaceeither
theprocessorboardorthesystemboard,andreplacingoneofthemdoesnotcorrecttheproblem,
reinstallthatboard,andthenreplacetheotherone.

•IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUsmaybethecauseoftheerror.
Beforereplacingtheadapterordevice,removetheFRUs,onebyone,toseeifthesymptomschange.
ReplaceonlytheFRUthatchangedthesymptoms.

Importantnoticeforreplacingasystemboard

Somecomponentsmountedonasystemboardareverysensitive.Improperhandlingofasystemboardcan
causedamagetothosecomponents,andmaycauseasystemmalfunction.

Attention:Whenhandlingasystemboard:

•Donotdropasystemboardorapplyanyexcessiveforcetoit.

•Avoidroughhandlingofanykind.

•AvoidbendingasystemboardandhardpushingtopreventcrackingateachBGA(BallGridArray)chipset.

Howtouseerrormessage

Usetheerrorcodesdisplayedonthescreentodiagnosefailures.Ifmorethanoneerrorcodeisdisplayed,
beginthediagnosiswiththefirsterrorcode.Whatevercausesthefirsterrorcodemayalsocausefalseerror
codes.Ifnoerrorcodeisdisplayed,seewhethertheerrorsymptomislistedintheSymptom-to-FRU
Indexforthecomputeryouareservicing.

StrategyforreplacingFRUsforCTO,special-bid,andstandardmodels

ThistopicprovidesinformationaboutthemodeltypesandFRUidentification.

Productdefinition

Thistopicintroducesdifferentmodeltypesandhowtoidentifyeachtype.

Dynamicconfigure-to-order(CTO)model

ThismodelprovidestheabilityforacustomertoconfigureaLenovosolutionfromaWebsite,andhavethis
configurationsenttofulfillment,whereitisbuiltandshippeddirectlytothecustomer.Themachinelabeland
eSupportwillloadtheseproductsasthe4-characterMT ,4-charactermodel,and2-charactercountrycode.
Themodelis“CTO1”andthedefaultcountrycodeis“WW”(example:20A7CTO1WW).

Special-bidmodel

ThisisauniqueconfigurationthathasbeennegotiatedbetweenLenovoandthecustomer.Auniquemachine
typemodel(MTM)consistsofa4-characterMT,a4-charactermodel,andanumeric2-charactercountry
codeisprovidedtothecustomertoplaceorders(example:20A7000955).Thecountrycodeassignedis

Chapter2.Importantserviceinformation25

numericanddoesnotdesignateaspecificcountryorregion.ThecustommodelfactsheetfortheMTM
indicateswhichcountrythespecialbidMTMissetupfor.Special-bidofferingisnotgenerallyannounced.

Standardmodel

Standardmodels(fixedconfiguration)areannouncedandofferedtoallcustomers.TheMTMportionofthe
machinelabelconsistsofa4-characterMT,a4-charactermodel,andanalphabetic2-charactercountry
code.Thecountrycodeassignedisalphabeticandrepresentsadesignatedcountryorregion(example:
20A70009UK).

FRUidentification

UseLenovoeSupporttoidentifymajorFRUs,FRUpartnumbers,andFRUdescriptionsforaproductatan
MT-serialnumberlevel.ExamplesofmajorFRUsaresystemboardandliquidcrystaldisplay(LCD).

ToidentifythemajorFRUsforaproduct,dothefollowing:

1.Gotohttp://support.lenovo.com/ibasepartslookup.

2.TypetheMachineTypeandSerialNumberinthecorrespondingfields.

3.ClickSubmit.

eSupportalsocanbeusedtoviewthegeneralFRUlistforaproduct.TheFRUlistisagenerallistof
componentsanddoesnotcontainspecificmodelinformation.

TogetthegeneralFRUlistforaproduct,dothefollowing:

1.Gotohttp://www.lenovo.com/support.

2.Followtheinstructionsonthescreentoselectaproduct.

3.ClicktheProduct&Partstab.

4.SelectSystemServicePartstoviewageneralFRUlist.

26ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Chapter3.Generalcheckout

Thischapterintroducesfollowinginformation:

•“Whattodofirst”onpage27

•“Powersystemcheckout”onpage28

Besuretoreadthefollowingimportantnotes.

Important:

•Onlycertifiedtrainedpersonnelshouldservicethecomputer.PersonnelrepairingtheLenovo
ChromebookcomputermusthavecompletedthecertificationcoursenumberRTPW1170or
CTPi217.

•BeforereplacinganyFieldreplaceableUnit(FRU),readtheentirepageonremovingandreplacing
FRUs.

•WhenyoureplaceFRUs,itisrecommendedusenewnylon-coatedscrews.

•Beextremelycarefulduringsuchwriteoperationsascopying,saving,orformatting.Thesequence
ofthedrivesinthecomputerthatyouareservicingmighthavebeenaltered.Ifyouselectanincorrect
drive,dataorprogramsmightbeoverwritten.

•ReplaceaFRUonlywithanotherFRUofthecorrectmodel.WhenyoureplaceaFRU,ensure
thatthemodelofthemachineandtheFRUpartnumberarecorrectbyreferringtotheWebsite:
http://www.lenovo.com/serviceparts-lookup

•AFRUshouldnotbereplacedbecauseofasingle,unreproduciblefailure.Singlefailurescan
occurforvariousreasonsthathavenothingtodowithahardwaredefect,suchascosmicradiation,
electrostaticdischarge,orsoftwareerrors.ConsiderreplacingaFRUonlywhenaproblemrecurs.Ifyou
suspectthataFRUisdefective,cleartheerrorlogandrunthetestagain.Iftheerrordoesnotrecur,do
notreplacetheFRU.

•BecarefulnottoreplaceanondefectiveFRU.

Whattodofirst

WhenyoureturnaFRU,youmustincludethefollowinginformationinthepartsexchangeformorparts
returnformthatyouattachtoit:

1.Nameandphonenumberofservicetechnician

2.Dateofservice

3.Dateonwhichthemachinefailed

4.Dateofpurchase

5.Failuresymptoms,errorcodesappearingonthedisplay,andbeepsymptoms

6.ProcedureindexandpagenumberinwhichthefailingFRUwasdetected

7.FailingFRUnameandpartnumber

8.Machinetype,modelnumber,andserialnumber

9.Customer'snameandaddress

Note:Duringthewarrantyperiod,thecustomermayberesponsibleforrepaircostsifthecomputerdamage
wascausedbymisuse,accident,modification,unsuitablephysicaloroperatingenvironment,orimproper
maintenancebythecustomer.Followingisalistofsomecommonitemsthatarenotcoveredunderwarranty
andsomesymptomsthatmightindicatethatthesystemwassubjectedtostressbeyondnormaluse.

Beforecheckingproblemswiththecomputer,determinewhetherthedamageiscoveredunderthewarranty
byreferringtothefollowinglist:

©CopyrightLenovo2016

27

Thefollowingarenotcoveredunderwarranty:

(20V)

1

3

2

•LCDpanelcrackedfromtheapplicationofexcessiveforceorfrombeingdropped

•Scratched(cosmetic)parts

•Distortion,deformation,ordiscolorationofthecosmeticparts

•Plasticparts,latches,pins,orconnectorsthathavebeencrackedorbrokenbyexcessiveforce

•Damagecausedbyliquidspilledintothesystem

•DamagecausedbytheimproperinsertionofaPCcardortheinstallationofanincompatiblecard

•Fusesblownbyattachmentofanonsupporteddevice

•Forgottencomputerpassword(makingthecomputerunusable)

•Stickykeyscausedbyspillingaliquidontothekeyboard

•Useofanincorrectacpoweradapteronlaptopproducts

Thefollowingsymptomsmightindicatedamagecausedbynonwarrantedactivities:

•Missingpartsmightbeasymptomofunauthorizedserviceormodification.

Powersystemcheckout

Toverifyifabatteryandanacpoweradapterarefunctional,dothefollowing:

1.Turnoffthecomputer.

2.Connecttheacpoweradapter.

3.Turnonthecomputer.Ifthecomputercanbeturnedon,itmeansthateitherthebatteryortheac
poweradapterisfunctional.

4.Turnoffthecomputer.

5.Disconnecttheacadapterandturnonthecomputer.Ifthecomputercanbeturnedon,itmeansthe
batteryisfunctional.

Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:

•“Checkingtheacpoweradapter”onpage28

•“Checkingthebatteryandoperationalcharging”onpage29

Checkingtheacpoweradapter

Youareherebecausethecomputerfailsonlywhentheacpoweradapterisused.

•Ifthesystem-statusindicatordoesnotblinkthreetimeswhenanacpowersourceisconnected,check
thepowercordoftheacpoweradapterforcorrectcontinuityandinstallation.

•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingthebatteryandoperationalcharging”
onpage29.

Tochecktheacpoweradapter,dothefollowing:

1.Disconnecttheacpoweradaptercablefromthecomputer.

2.Measuretheoutputvoltageattheplugoftheacpoweradaptercable.Seethefollowingillustration:

Pin

1+20

20

3

Voltage(Vdc)

Ground

Note:Outputvoltageofpin2oftheacpoweradaptermightdifferfromtheoneyouareservicing.

3.Ifthevoltageisnotcorrect,replacetheacpoweradapter.

4.Ifthevoltageisacceptable,replacethesystemboard.

Note: Noise from the ac power adapter does not always indicate a defect

28ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Checking the battery and operational charging

Checking the battery

This system supports only batteries specially designed for this specific system and manufactured by Lenovo
or an authorized builder. The system does not support unauthorized batteries or batteries designed for other
systems. If an unauthorized battery or a battery designed for another systems is installed, the system will
not charge.

Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out of their use.

The battery status indicator is located in the lower-right corner of the screen. To view the percentage of
battery power remaining, click the battery status icon.

Checking the operational charging

To check whether the battery charges properly during operation, do the following:

1.Dischargethebatteryuntiltheremainedbatterypowerislessthan50%.

2.Performoperationalcharging.Clickthebatterystatusiconinthelower-rightcornerofthescreento
displaydetailedbatteryinformation.Ifitindicatesthatthebatteryisnotcharging,replacethebattery.

3.Checkthebatterystatusagain.Ifthesameerrorstillexists,replacethesystemboard.

Chapter3.Generalcheckout29

30ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Chapter4.Functionkeys

Thefollowingtabledescribesthefunctionkeysonthecomputer.

Table2.Functionkeys

FunctionkeyDescription

Goestothepreviouspage.

Goestothenextpage.

Reloadsthecurrentpage.

Viewsthecurrentpageinfull-screenmode.

Switchesbetweenwindows.

Decreasesthescreenbrightness.

Increasesthescreenbrightness.

Mutesthevolume.

Decreasesthevolume.

Increasesthevolume.

Locksthecomputerscreen.Thiskeyisavailableoncomputermodelswithamulti-touch
screen.

Turnsonthecomputer.Thiskeyisavailableoncomputermodelswithoutamulti-touch
screen.

SearchesapplicationsandtheWeb.

©CopyrightLenovo2016

31

32ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Chapter5.Locations

Thischapterintroducesthelocationsofthehardwarecomponentsonyourcomputer.

Locatingcomputercontrols,connectors,andindicators

Thistopicintroducesthelocationsofthecomputercontrols,connectors,andindicators.

Frontview

ThinkPad11eChromebook3rdGen

1 Microphone

3 Camera 4 Speakers

5 Security-lockslot

7 AlwaysOnUSB3.0connector

9 System-statusindicator

1

:Whenthecameraisstarted,thecamera-in-useindicatorturnsoningreen.

2

:TheilluminateddotintheThinkPadlogoworksasasystem-statusindicator.

2

2 Camera-in-useindicator

6 HDMI™connector

8 Audioconnector

10 Touchpad

Solidon:Thecomputerison(innormaluse).
Blinksslowly:Thecomputerisinsleepmode.

Off: The computer is off.

©CopyrightLenovo2016

1

33

ThinkPad Yoga 11e Chromebook 3rd Gen

1 Microphone

3 Camera 4 Speakers

5 Security-lockslot

7 AlwaysOnUSB3.0connector

9 Volume-controlbuttons 10 Powerbutton

11 System-statusindicator

13 Multi-touchscreen

1

:Whenthecameraisstarted,thecamera-in-useindicatorturnsoningreen.

2

:TheilluminateddotintheThinkPadlogoworksasasystem-statusindicator.

2

2 Camera-in-useindicator

6 HDMI™connector

8 Audioconnector

12 Touchpad

Solidon:Thecomputerison(innormaluse).
Blinksslowly:Thecomputerisinsleepmode.
Off:Thecomputerisoff.

1

34ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Left-sideview

1System-statusindicator

3Media-cardslot

5Powerconnector

1

:TheilluminateddotintheThinkPadlogoworksasasystem-statusindicator.

1

2Wireless-statusindicator

4AlwaysOnUSB3.0connector

Solidon:Thecomputerison(innormaluse).
Blinksslowly:Thecomputerisinsleepmode.
Off:Thecomputerisoff.

2

:Thewireless-statusindicatorislocatedontheouterlidofthecomputer.

On:Thewirelessfeaturesofthecomputerareon.
Off:Thewirelessfeaturesofthecomputerareoff.

2

Chapter5.Locations35

Bottomview

1Bottomcover2Fanlouvers

LocatingFRUsandCRUs

Thistopicintroducesthefollowingserviceparts:

•“MajorFRUs”onpage37

•“LCDFRUs”onpage39

Notes:

•EachFRUisavailableforalltypesormodels,unlessotherwisespecified.

•CRUstatementforcustomers:
Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,calleda
“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothersare
designatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.Foroptional-service

CRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProviderinstalltheCRUaccording
tothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,LenovowillshiptheCRUtoyou.CRU

informationandreplacementinstructionsareshippedwithyourproductandareavailablefromLenovoatanytime
uponrequest.Y oucanfindalistofCRUsforyourproductinthisHardwareMaintenanceManual.Anelectronic
versionofthismanualcanbefoundathttp://www.lenovo.com/support.ClickGuides&Manualsandthenfollow
theon-screeninstructionstofindthemanualforyourproduct.Y oumightberequiredtoreturnthedefectivepart
thatisreplacedbytheCRU.Whenreturnisrequired:(1)returninstructions,aprepaidshippinglabel,anda
containerwillbeincludedwiththereplacementCRU;and(2)youmightbechargedforthereplacementCRUif
LenovodoesnotreceivethedefectiveCRUwithinthirty(30)daysofyourreceiptofthereplacementCRU.Seeyour
LenovoLimitedWarrantydocumentationforfulldetails.

ThinkPadcomputerscontainthefollowingtypesofCRUs:
–Self-serviceCRUs:TheseCRUsunplugorareheldbynomorethantwoscrews.Examplesofthesetypesof

CRUsincludetheacpoweradapterandpowercord.Otherself-serviceCRUsdependingonproductdesign
mightincludethewirelesscard,keyboard,andpalmrestwithfingerprintreaderandtouchpad.

–Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerthatareconcealedbyanaccess

panelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,thespecific
CRUisvisible.

36ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

MajorFRUs

Chapter5.Locations37

No.FRUdescriptions

Self-serviceCRUOptional-service

CRU

1

LCDunit(see“LCDFRUs”onpage39)

2

KeyboardNoNo

3

KeyboardbezelassemblyNoNo

4

HeatsinkNoNo

5

Systemboard

6

BasecoverassemblyNoNo

7

BatteryNoNo

8

BottomcoverYesNo

9

PowercordYesNo

10

acpoweradapterYesNo

11

WirelessLANcardNoNo

12

dc-incableNoNo

13

SDcardreader

a

Screwrubbercaps(see“Miscellaneousparts”onpage42)

b

I/Obracket(see“Miscellaneousparts”onpage42)

c

dc-inbracket(see“Miscellaneousparts”onpage42)

NoNo

NoNo

NoNo

NoNo

NoNo

NoNo

38ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

LCDFRUs

Formodelswithouttouchpanel:

No.FRUdescriptions

1

LCDbezelassembly

2

Camera/microphoneboard

3

LCDpanelwithouttouchfunction

4

HingesNoNo

Self-serviceCRUOptional-service

CRU

NoNo

NoNo

NoNo

Chapter5.Locations39

No.FRUdescriptions

Self-serviceCRUOptional-service

CRU

5

LCDrearcoverassembly

6

LCDcable

a

Mylarscrewcaps(see“Miscellaneousparts”onpage42)

b

Hingerubbers(see“Miscellaneousparts”onpage42)

NoNo

NoNo

NoNo

NoNo

40ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Formodelswithtouchpanel:

No.FRUdescriptions

Self-serviceCRUOptional-service

CRU

1

LCDpanelwithtouchfunction

2

LCDpanelbracket

3

Sensorboard

4

Camera/microphoneboard

5

HingesNoNo

6

LCDrearcoverassembly

NoNo

NoNo

NoNo

NoNo

NoNo

Chapter5.Locations41

No.FRUdescriptions

7

LCDcable

a

Mylarscrewcaps(see“Miscellaneousparts”onpage42)

b

Hingerubbers(see“Miscellaneousparts”onpage42)

Miscellaneousparts

Self-serviceCRUOptional-service

CRU

NoNo

NoNo

NoNo

FRUdescriptions

Screwkit

Systemmiscellaneouskit

•Screwrubbercaps

LCDmiscellaneouskit

•Mylarscrewcaps

•Hingerubbers

Self-serviceCRUOptional-service

CRU

NoNo

NoNo

NoNo

Connectorandcableguide

ThistopicprovidesinformationtohelpLenovoauthorizedservicetechniciansidentifyconnectorsandcables
forreplacementpurpose.TovieweachFRUandtheexplodedillustrationofthecomputer,see“Major
FRUs”onpage37and“LCDFRUs”onpage39.

Note:Dependingonyourcomputermodel,someconnectorsorcablesmightnotbeavailable.

Systemboardconnectorsandcables

Table3.Systemboardconnectorandcableguide

Item

1

2

Connector(location)

Keyboardconnector(internal)

Cameracableconnector(internal)CameracableConnectoneendtothe

Internalcablerequired

KeyboardassemblycableThekeyboardassemblycomes

withacable.Connectthecableto
thisconnector.

camera/microphoneboard,
anotherendtothesensorboard,
andathirdendtothisconnector.
Note:Thesensorboardis
availableonlyoncomputermodels
withatouchpanel.

Cableconnection

42ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Table3.Systemboardconnectorandcableguide(continued)

Item

3

Connector(location)

Speakerassemblyconnector
(internal)

4

5

HDMIconnector(external)

AlwaysOnUSB3.0connector
(external)

6

7

8

9

10

11

12

13

Audioconnector(external)

Volume-downswitch(external)

Volume-upswitch(external)

Powerbuttonswitch(external)

LEDconnector(internal)

Touchpadconnector(internal)

SDcardreaderslot(external)SDcardreadercableTheSDcardreadercomeswitha

AlwaysOnUSB3.0connector
(external)

14

15

16

17

Wireless-LANcardslot(internal)

dc-inconnector(internal)

LCDconnector(internal)LCDcableConnectoneendtotheLCD

Batteryconnector(internal)

Internalcablerequired

Speakerassemblycable

Thespeakerassemblycomeswith

Cableconnection

acable.Connectthecabletothis
connector.

No

Connectacompatibledigitalaudio
deviceorvideomonitortothis
connector.

No

ConnectaUSB-compatibledevice
tothisconnector.

No

Connectheadphonesoraheadset
witha3.5-mm(0.14-inch),4-pole
plugtothisconnector.

NoAttachthevolume-downbuttonto

thisswitch.

NoAttachthevolume-upbuttonto

thisswitch.

NoAttachthepowerbuttontothis

switch.

LEDcableThekeyboardbezelassembly

comeswiththeLEDcable.
Connectthecabletothis
connector.

TouchpadcableThekeyboardbezelassembly

comeswiththetouchpad
cable.Connectthecabletothis
connector.

cable.Connectthecabletothis
connector.

No

ConnectaUSB-compatibledevice
tothisconnector.

NoInsertthewireless-LANcardinto

thisslot.

dc-incable

Thepowerconnectorofthe
computercomeswiththedc-in
cable.Connectthecabletothis
connector.

panelandtheotherendtothis
connector.

BatterycableThebatterycomeswitha

cable.Connectthecabletothis
connector.

Camera/microphoneboardconnectorandcable

Chapter5.Locations43

Table4.Camera/microphoneboardconnectorandcableguide

Item

1

Connector(location)

Camera/microphoneboard

CameracableConnectoneendtothecamera

connector(internal)

Keyboardbezelassemblyconnectorandcable

Table5.Keyboardbezelassemblyconnectorandcableguide

Item

1

2

Connector(location)

LEDconnector(internal)

Touchpadconnector(internal)

LEDcable

Touchpadcable

Internalcablerequired

Internalcablerequired

Cableconnection

cableconnectoronthesystem
board,anotherendtothesensor
board,andathirdendtothis
connector.
Note:Thesensorboardis
availableonlyoncomputermodels
withatouchpanel.

Cableconnection

ConnectoneendtotheLED
connectoronthesystemboard,
andtheotherendtothisconnector.

Connectoneendtothetouch
padconnectoronthesystem
board,andtheotherendtothis
connector.

SDcardreaderconnectorandcable

44ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Item

1

Connector(location)

SDcardreaderconnector(internal)SDcardreadercableConnectoneendtotheSDcard

Internalcablerequired

Cableconnection

readerconnectoronthesystem
board,andtheotherendtothis
connector.

Wireless-LANcardconnectorsandcables

Table6.Wireless-LANcardconnectorandcableguide

Item

1

2

Connector(location)

Wireless-LANantennaconnector
(internal)

Wireless-LANantennaconnector
(internal)

Internalcablerequired

Wireless-LANantennakit

Wireless-LANantennakit

Connectoneendofthegray
wireless-LANantennatotheLCD
rearcoverassembly,andtheother
endtothisconnector.

Connectoneendoftheblack
wireless-LANantennatotheLCD
rearcoverassembly,andtheother
endtothisconnector.

Sensorboardconnectorandcable(availableoncomputermodelswithatouchpanel)

Table7.Sensorboardconnectorandcableguide

Item

1

Connector(location)

Sensorboardconnector(internal)CameracableConnectoneendtothe

Internalcablerequired

camera/microphoneboard,
anotherendtothesystemboard,
andathirdendtothisconnector.

Cableconnection

Cableconnection

LookingupFRUinformation

FordetailedFRUinformation,includingpartnumbers,descriptions,andsubstitutionpartnumbers,goto:
http://www.lenovo.com/serviceparts-lookup

Chapter5.Locations45

46ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Chapter6.FRUreplacementnotices

Thischapterpresentsnoticesrelatedtoremovingandreplacingparts.Readthischaptercarefullybefore
replacinganyFRU.

CRUstatementforcustomers:

Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,called
a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothers
aredesignatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.For

optional-serviceCRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProvider
installtheCRUaccordingtothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,

LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshippedwithyour
productandareavailablefromLenovoatanytimeuponrequest.Y oucanfindalistofCRUsforyour
productinthisHardwareMaintenanceManual.Anelectronicversionofthismanualcanbefoundat
http://www.lenovo.com/support.ClickGuides&Manualsandthenfollowtheon-screeninstructionstofind
themanualforyourproduct.Y oumightberequiredtoreturnthedefectivepartthatisreplacedbytheCRU.
Whenreturnisrequired:(1)returninstructions,aprepaidshippinglabel,andacontainerwillbeincluded
withthereplacementCRU;and(2)youmightbechargedforthereplacementCRUifLenovodoesnot
receivethedefectiveCRUwithinthirty(30)daysofyourreceiptofthereplacementCRU.SeeyourLenovo
LimitedWarrantydocumentationforfulldetails.

Commonservicetools

Belowisthelistofcommonservicetoolsthatyoumightneedwhileservicingthecomputer.

•Screwdriverkit(includingT5Torxscrewdriver)

•1/4"drivespinnerhandle

•1/4"Sq.to1/4"hextorxadapter

•TR7- TR-10tamperresistanttorxbits

•RemovaltoolantennaRFconnector

•USB2.0CD-RW/DVD-ROMcombodriveII

•USBcable

•USBfloppydiskettedriveformaintenancediskette

•USBfloppydiskettedrivetoolkit

•T estcardforintegratedSmartCard

•LENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater

Note:DownloadthefilefromthefollowingWebsite:
http://www.lenovo.com/support

Screwnotices

Loosescrewscancauseareliabilityproblem.IntheThinkPadnotebookcomputer,thisproblemisaddressed
withspecialnylon-coatedscrewsthathavethefollowingcharacteristics:

•Theymaintaintightconnections.

•Theydonoteasilycomeloose,evenwithshockorvibration.

•Theyarehardertotighten.

Dothefollowingwhenyouservicethismachine:

•Keepthescrewkitinyourtoolbag.Forthepartnumberofthescrewkit,goto
http://www.lenovo.com/serviceparts-lookup.

•Itisrecommendedtousenewscrews.

•Itisrecommendedtouseeachscrewonlyonce.

©CopyrightLenovo2016

47

Tightenscrewsasfollows:

90degreesmore

(Cross-section)

180degreesmore

(Cross-section)

•Plastictoplastic
Turnanadditional90degreesafterthescrewheadtouchesthesurfaceoftheplasticpart.

•Logiccardtoplastic
Turnanadditional180degreesafterthescrewheadtouchesthesurfaceofthelogiccard.

Notes:

•Ensurethatyouusethecorrectscrew.Itisrecommendedtousenewscrewsforreplacements.Ifyou
haveatorquescrewdriver,tightenallscrewsfirmlytothetorquespecifiedinthescrewinformation
tableforeachstep.

•Ensurethattorquescrewdriversarecalibratedcorrectlyfollowingcountryspecifications.

Hardwareidentity

Asetofvalidhardwareidentities(HWIDs)areprovidedbyGoogle.Googlelogstheexacthardware
combinationintoaChromebookandcreatesanHWID.TheHWIDisusedtoensurethatallpartsarevalid
duringtherepairoftheChromebook.TheHWIDisusedforthefollowingpurposes:

•Auto-updatenewpatchesandsoftwareforthelifetimeofthecomputer

•Recoverthecomputertothefactorydefaultsettings

Ifunauthorizedpartsareinstalled,youmightnotgetthecorrectauto-updatesforyourcomputer,oryou
mightnotrecoveryourcomputersuccessfullytothefactorydefaultsettings.Forexample,ifyouinstalla
differentmodelofthewirelessLANcard,whichisnottherequiredconfiguration,theHWIDwillnotmatch.

HWIDischeckedbyusingtherepairshim.Forinformationabouttherepairshim,see“Overviewofthe
ChromebookUSBrepairshim”onpage21.

PrerequisiteforreplacingaFRU

Usetherepairshimbeforereplacinganynon-CRUs.ThefollowingisthelistofCRUsforyourChromebook:

•acpoweradapter

•Powercord

•Bottomcover

ForCRUdefinition,see“LocatingFRUsandCRUs”onpage36

.

48ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Forinformationabouthowtousetherepairshim,see“Usingtherepairshim”onpage23.

Chapter6.FRUreplacementnotices49

50ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Chapter7.RemovingorreplacingaFRU

ThischapterprovidesinstructionsonhowtoremoveorreplaceaFRU.

CRUstatementforcustomers:

Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,called
a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothers
aredesignatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.For

optional-serviceCRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProvider
installtheCRUaccordingtothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,

LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshippedwithyour
productandareavailablefromLenovoatanytimeuponrequest.Y oucanfindalistofCRUsforyourproduct
inthisHardwareMaintenanceManual.Anelectronicversionofthismanualisavailablefordownloadingat
http://www.lenovo.com/support.Y oumightberequiredtoreturnthedefectiveCRU.Whenreturnisrequired:
(1)returninstructions,aprepaidshippinglabel,andacontainerwillbeincludedwiththereplacement
CRU;and(2)youmightbechargedforthereplacementCRUifLenovodoesnotreceivethedefective
partwithinthirty(30)daysofyourreceiptofthereplacementCRU.SeeyourLenovoLimitedWarranty
documentationforfulldetails.

Generalguidelines

DANGER

BeforeremovinganyFRU,turnoffthecomputer ,unplugallpowercordsfromelectricaloutlets,
disconnectanyinterconnectingcables,andthendisablethebattery.

Forinstructionsonhowtodisablethebattery,see“Disablingthebattery”onpage52.

WhenremovingorreplacingaFRU,besuretoobservethefollowinggeneralguidelines:

1.Donottrytoserviceanycomputerunlessyouhavebeentrainedandcertified.Anuntrainedpersonruns
theriskofdamagingparts.

2.BeforereplacinganyFRU,reviewChapter6“FRUreplacementnotices”onpage47.

3.BeginbyremovinganyFRUsthathavetoberemovedbeforereplacingthefailingFRU.AnysuchFRUs
arelistedatthebeginningofeachFRUreplacementsection.Removethemintheorderinwhichthey
arelisted.

4.FollowthecorrectsequenceinthestepsforremovingaFRU,asgiveninthedrawingsbythenumbers
insquarecallouts.

5.Whenturningascrew,turnitinthedirectionasgivenbythearrowinthedrawing.

6.WhenremovingaFRU,moveitinthedirectionasgivenbythearrowinthedrawing.

7.ToputthenewFRUinplace,reversetheremovalprocedureandfollowanynotesthatpertainto
replacement.

8.WhenreplacingaFRU,usethecorrectscrewsasshowninthereplacementprocedures.

Attention:AfterreplacingaFRU,donotturnonthecomputeruntilyouhavemadesurethatallscrews,
springs,andothersmallpartsareinplaceandnonearelooseinsidethecomputer.Verifythisbyshaking
thecomputergentlyandlisteningforrattlingsounds.Metallicpartsormetalflakescancauseelectrical
shortcircuits.

©CopyrightLenovo2016

51

Attention:Thesystemboardissensitiveto,andcanbedamagedby,electrostaticdischarge(ESD).Before

touchingit,establishpersonalgroundingbytouchingagroundpointwithonehandorbyusinganESDstrap.

Disablingthebattery

BeforereplacinganyFRU,ensurethatyouhavedisabledthebatterybydoingthefollowing:

Note:Followtheinstructionsonthescreeninadditiontotheinstructionsinthistopic.

1.Turnoffyourcomputeranddisconnectallcablesfromthecomputer.Connecttheacpoweradapterto
thepowerconnectoronyourcomputer.

2.DothefollowingtoenterDevelopermode:

a.Pressandholdtheesckey,therefreshkey,andthepowerbuttonatthesametime.

WhenthemessageChromeOSismissingordamaged.PleaseinsertarecoveryUSBstickorSDcard.
isdisplayed,pressctrl+d.

Note:IfyouarepromptedtoturnofftheOSverification,pressenter.

b.WhenthemessageOSvericationisOFF .PressSPACEtore-enable.isdisplayed,donotpressthe

spacekey.Thecomputerwillrestartautomatically.Thisprocesstakesseveralminutes.

3.Whenpromptedtologontothecomputer,pressandholdthectrl+alt+forwardkeyatthe
sametime,thentheTerminalwindowisdisplayed.

4.Whenpromptedtologontothelocalhost,typechronosinthelocalhostlogin:fieldandpressenter.

5.Typesudobashinthechronos@localhostfieldandpressenter.

6.Typeectoolbatterycutoffinthelocalhostuserfieldandpressenter.

7.WhenthemessageSUCCESS.Thebatteryhasarrangedacut-offandthesystemshouldbeshutdown
immediately.isdisplayed,disconnecttheacpoweradapterfromthecomputerandthecomputerturns
offimmediately.Thebatteryisdisabled.Waitseveralminutestoletthecomputercool.

1010Bottomcover

Removalstepsofthebottomcover

52ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Applyinglabelstothebottomcover

Thenewbottomcoverassemblyisshippedwithakitcontaininglabelsofseveralkinds.Applythoselabels
whenyoureplacethebottomcoverassembly.Forthelabelsthatarenotshippedwiththenewbottomcover,
peelthemfromtheoldbottomcoverandadherethemtothenewone.

Thefollowingillustrationshowsthelocationofeachlabel.

1S/Nlabel2GEOlabel

3CECPlabel4FCClabel

567Assettags

9Israellabel10Indonesiaratinglabel

11IndonesiaPostellabel

8MCMClabelforMalaysia

12BrazilANA TELlabel,BISlabel,orICASAlabel

1020Battery

Importantnoticesforreplacingabattery

Attention:Lenovohasnoresponsibilityfortheperformanceorsafetyofunauthorizedbatteries,and

providesnowarrantiesforfailuresordamagearisingoutoftheiruse.

Foraccess,removethisFRU:

•“1010Bottomcover”onpage52

Removalstepsofthebattery

DANGER

Useonlytheauthorizedbatteryspecifiedforyourcomputer.Anyotherbatterycouldigniteor
explode.

Chapter7.RemovingorreplacingaFRU53

StepScrew(quantity)Color

2

M2×L4mm,flat-head,nylon-coated(2)Silver

1030WirelessLANcard

Foraccess,removethisFRU:

54ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Torque

0.181Nm
(1.85kgf-cm)

•“1010Bottomcover”onpage52

RemovalstepsofthewirelessLANcard

StepScrew(quantity)Color

3

M2×L3mm,flat-head,nylon-coated(1)

Black0.181Nm

Torque

(1.85kgf-cm)

Wheninstalling:

•Attachthegraycabletotheconnectormarked“MAIN”onthecard,andattachtheblackcabletothe
connectormarked“ AUX” .

•Ensurethattheconnectorsareattachedfirmly.

1040Keyboard

Foraccess,removethisFRU:

•“1010Bottomcover”onpage52

Chapter7.RemovingorreplacingaFRU55

Removalstepsofthekeyboard

StepScrew(quantity)Color

2

M2×L4mm,flat-head,nylon-coated(2)Silver

Torque

0.181Nm
(1.85kgf-cm)

56ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Wheninstalling:Ensurethattheconnectorsareattachedfirmly.

1050KeyboardbezelassemblyandSDcardreader

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1040Keyboard”onpage55

Chapter7.RemovingorreplacingaFRU57

Removalstepsofthekeyboardbezelassembly

StepScrewcapScrew(quantity)Color

1

2

3

4

N/AM2.5×L8mm,flat-head,nylon-coated(2)

N/AM2×L4mm,flat-head,nylon-coated(1)Silver

N/AM2xL2mm,big-head,nylon-coated(7)

M2×L5mm,flat-headshoulder,
nylon-coated(2)

Torque

Black0.294Nm

(3.0kgf-cm)

0.181Nm
(1.85kgf-cm)

Black0.181Nm

(1.85kgf-cm)

Black0.181Nm

(1.85kgf-cm)

StepScrew(quantity)Color

5

M2×L4mm,flat-head,nylon-coated(3)Silver

58ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Torque

0.181Nm
(1.85kgf-cm)

Wheninstalling:Ensurethattheconnectorsareattachedfirmly.

Chapter7.RemovingorreplacingaFRU59

RemovalstepsoftheSDcardreader

StepScrew(quantity)Color

4

Wheninstalling:Ensurethattheconnectorisattachedfirmly.

M2×L3mm,flat-head,nylon-coated(2)

Black0.181Nm

1060I/Obracket,dc-inbracket,systemboardassembly,dc-in connector,andheatsink

Importantnoticesforhandlingthesystemboard

Whenhandlingthesystemboard,readthefollowing:

60ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Torque

(1.85kgf-cm)

•Thesystemboardhasanaccelerometer,whichcanbebrokenwhenseveralthousandsofG-forces
areapplied.

Note:Droppingasystemboardfromaheightofaslittleas15cm(6inches)sothatitfallsflatonahard
benchcansubjecttheaccelerometertoasmuchas6000G'sofshock.

•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,or
composite.

•Avoidroughhandlingofanykind.

•Ateverypointintheprocess,besurenottodroporstackthesystemboard.

•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatora
corrugatedconductivematerial.

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1030WirelessLANcard”onpage54

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

Attention:Themicroprocessorasolderedonthetopsideofthesystemboardisextremelysensitive.When
youservicethesystemboard,avoidanykindofroughhandling.

RemovalstepsoftheI/Obracketanddc-inbracket

Chapter7.RemovingorreplacingaFRU61

62ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

StepScrew(quantity)Color

7

M2×L4mm,flat-head,nylon-coated(4)Silver

Wheninstalling:Ensurethattheconnectorsareattachedfirmly.

Torque

0.181Nm
(1.85kgf-cm)

Chapter7.RemovingorreplacingaFRU63

Removalstepsofthesystemboardassembly

Removalstepsofthedc-inconnector

Wheninstalling:Ensurethattheconnectorisattachedfirmly.

Removalstepsoftheheatsink

64ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

1070LCDunit

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1030WirelessLANcard”onpage54

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

•“1060I/Obracket,dc-inbracket,systemboardassembly,dc-inconnector,andheatsink”onpage60

RemovalstepsoftheLCDunit

Chapter7.RemovingorreplacingaFRU65

StepScrew(quantity)Color

2

M2.5×L5mm,flat-head,nylon-coated(6)

Torque

Black0.294Nm

(3.0kgf-cm)

RemovinganLCDFRUformodelswithouttouchpanel

ThissectionprovidesinstructionsonhowtoremoveanLCDFRUformodelswithouttouchpanel.

2010LCDbezelassembly

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

66ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

•“1030WirelessLANcard”onpage54

1

1

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

•“1060I/Obracket,dc-inbracket,systemboardassembly,dc-inconnector,andheatsink”onpage60

•“1070LCDunit”onpage65

RemovalstepsoftheLCDbezelassembly

StepScrewcapScrew(quantity)Color

1

M2×L3mm,flat-head,nylon-coated(2)

Black0.181Nm

Torque

(1.85kgf-cm)

Wheninstalling:Ensurethatallthelatchesareattachedfirmly.

2020LCDpanelandLCDcable

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1030WirelessLANcard”onpage54

Chapter7.RemovingorreplacingaFRU67

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

•“1060I/Obracket,dc-inbracket,systemboardassembly,dc-inconnector,andheatsink”onpage60

•“1070LCDunit”onpage65

•“2010LCDbezelassembly”onpage66

RemovalstepsofLCDpanelandLCDcable

StepScrew(quantity)Color

1

M1.7xL3mm,flat-head,nylon-coated(4)

Torque

Black0.181Nm

(1.85kgf-cm)

Wheninstalling:EnsurethattheLCDconnectorisattachedfirmly.

68ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

2030Camera/microphoneboard

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1030WirelessLANcard”onpage54

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

•“1060I/Obracket,dc-inbracket,systemboardassembly,dc-inconnector,andheatsink”onpage60

•“1070LCDunit”onpage65

•“2010LCDbezelassembly”onpage66

•“2020LCDpanelandLCDcable”onpage67

Removalstepsofthecamera/microphoneboard

Wheninstalling:Ensurethattheconnectorisattachedfirmly.

2040Hinges

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1030WirelessLANcard”onpage54

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

•“1060I/Obracket,dc-inbracket,systemboardassembly,dc-inconnector,andheatsink”onpage60

•“1070LCDunit”onpage65

•“2010LCDbezelassembly”onpage66

•“2020LCDpanelandLCDcable”onpage67

•“2030Camera/microphoneboard”onpage69

Chapter7.RemovingorreplacingaFRU69

Removalstepsofthehinges

StepScrew(quantity)Color

1

M2.5×L3mm,flat-head,nylon-coated(8)

Torque

Black0.294Nm

(3.0kgf-cm)

70ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

RemovinganLCDFRUformodelswithtouchpanel

ThissectionprovidesinstructionsonhowtoremoveanLCDFRUformodelswithtouchpanel.

3010LCDpanelassembly,LCDcable,andLCDpanelbrackets

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1030WirelessLANcard”onpage54

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

•“1060I/Obracket,dc-inbracket,systemboardassembly,dc-inconnector,andheatsink”onpage60

•“1070LCDunit”onpage65

Chapter7.RemovingorreplacingaFRU71

RemovalstepsoftheLCDpanelassemblyandLCDcable

StepScrewcapScrew(quantity)Color

1

M2×L3mm,flat-head,nylon-coated(2)

Torque

Black0.181Nm

(1.85kgf-cm)

72ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

2

11

Wheninstalling:Ensurethattheconnectorsareattachedfirmly.

RemovalstepsoftheLCDpanelbrackets

StepScrew(quantity)Color

1

M2×L2.5mm,flat-head,nylon-coated(4)

Torque

Black0.181Nm

(1.85kgf-cm)

Chapter7.RemovingorreplacingaFRU73

3020Camera/microphoneboardandsensorboard

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1030WirelessLANcard”onpage54

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

•“1060I/Obracket,dc-inbracket,systemboardassembly,dc-inconnector,andheatsink”onpage60

•“1070LCDunit”onpage65

•“3010LCDpanelassembly,LCDcable,andLCDpanelbrackets”onpage71

Removalstepsofthecamera/microphoneboard

When installing: Ensure that the connector is attached firmly.

74ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Removal steps of the sensor board

Chapter7.RemovingorreplacingaFRU75

Wheninstalling:T akethetwosidesofthesensorboard,andthenpushitintothehookfromtheright
sidetotheleftside
thattheconnectorisattachedfirmly.

Note:Donotpressthesurfaceofthesensorboard.

1.Thentakethetwosidesofthesensorboardandpressitintothehook2.Ensure

3030Hinges

Foraccess,removetheseFRUsinorder:

•“1010Bottomcover”onpage52

•“1020Battery”onpage53

•“1030WirelessLANcard”onpage54

•“1040Keyboard”onpage55

•“1050KeyboardbezelassemblyandSDcardreader”onpage57

•“1060I/Obracket,dc-inbracket,systemboardassembly,dc-inconnector,andheatsink”onpage60

•“1070LCDunit”onpage65

•“3010LCDpanelassembly,LCDcable,andLCDpanelbrackets”onpage71

•“3020Camera/microphoneboardandsensorboard”onpage74

76ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

Removalstepsofthehinges

StepScrew(quantity)Color

1

M2.5×L3mm,flat-head,nylon-coated(6)

Torque

Black0.294Nm

(3.0kgf-cm)

Chapter7.RemovingorreplacingaFRU77

78ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

AppendixA.Notices

Lenovomaynotoffertheproducts,services,orfeaturesdiscussedinthisdocumentinallcountries.Consult
yourlocalLenovorepresentativeforinformationontheproductsandservicescurrentlyavailableinyour
area.AnyreferencetoaLenovoproduct,program,orserviceisnotintendedtostateorimplythatonlythat
Lenovoproduct,program,orservicemaybeused.Anyfunctionallyequivalentproduct,program,orservice
thatdoesnotinfringeanyLenovointellectualpropertyrightmaybeusedinstead.However,itistheuser’s
responsibilitytoevaluateandverifytheoperationofanyotherproduct,program,orservice.

Lenovomayhavepatentsorpendingpatentapplicationscoveringsubjectmatterdescribedinthis
document.Thefurnishingofthisdocumentdoesnotgiveyouanylicensetothesepatents.Y oucansend
licenseinquiries,inwriting,to:

Lenovo(UnitedStates),Inc.
1009ThinkPlace-BuildingOne
Morrisville,NC27560
U.S.A.
Attention:LenovoDirectorofLicensing

LENOVOPROVIDESTHISPUBLICA TION“ ASIS”WITHOUTWARRANTYOFANYKIND,EITHEREXPRESS
ORIMPLIED,INCLUDING,BUTNOTLIMITEDTO,THEIMPLIEDWARRANTIESOFNON-INFRINGEMENT ,
MERCHANTABILITYORFITNESSFORAPARTICULARPURPOSE.Somejurisdictionsdonotallow
disclaimerofexpressorimpliedwarrantiesincertaintransactions,therefore,thisstatementmaynotapply
toyou.

Thisinformationcouldincludetechnicalinaccuraciesortypographicalerrors.Changesareperiodically
madetotheinformationherein;thesechangeswillbeincorporatedinneweditionsofthepublication.
Lenovomaymakeimprovementsand/orchangesintheproduct(s)and/ortheprogram(s)describedinthis
publicationatanytimewithoutnotice.

Theproductsdescribedinthisdocumentarenotintendedforuseinimplantationorotherlifesupport
applicationswheremalfunctionmayresultininjuryordeathtopersons.Theinformationcontainedinthis
documentdoesnotaffectorchangeLenovoproductspecificationsorwarranties.Nothinginthisdocument
shalloperateasanexpressorimpliedlicenseorindemnityundertheintellectualpropertyrightsofLenovo
orthirdparties.Allinformationcontainedinthisdocumentwasobtainedinspecificenvironmentsandis
presentedasanillustration.Theresultobtainedinotheroperatingenvironmentsmayvary.

Lenovomayuseordistributeanyoftheinformationyousupplyinanywayitbelievesappropriatewithout
incurringanyobligationtoyou.

Anyreferencesinthispublicationtonon-LenovoWebsitesareprovidedforconvenienceonlyanddonotin
anymannerserveasanendorsementofthoseWebsites.ThematerialsatthoseWebsitesarenotpartof
thematerialsforthisLenovoproduct,anduseofthoseWebsitesisatyourownrisk.

Anyperformancedatacontainedhereinwasdeterminedinacontrolledenvironment.Therefore,theresult
obtainedinotheroperatingenvironmentsmayvarysignificantly.Somemeasurementsmayhavebeen
madeondevelopment-levelsystemsandthereisnoguaranteethatthesemeasurementswillbethesame
ongenerallyavailablesystems.Furthermore,somemeasurementsmayhavebeenestimatedthrough
extrapolation.Actualresultsmayvary.Usersofthisdocumentshouldverifytheapplicabledatafortheir
specificenvironment.

©CopyrightLenovo2016

79

Electronicemissionsnotices

ForelectronicemissioninformationonClassBdigitaldevices,refertothecorrespondinginformationin
theUserGuide.

EUContact:Lenovo,Einsteinova21,85101Bratislava,Slovakia

Trademarks

ThefollowingtermsaretrademarksofLenovointheUnitedStates,othercountriesorboth:

Lenovo
Lenovologo
ThinkPad
ThinkPadlogo
Yoga

ChromeOSandChromebookaretrademarksofGoogleInc.

ThetermsHDMIandHDMIHigh-DefinitionMultimediaInterfacearetrademarksorregisteredtrademarksof
HDMILicensingLLCintheUnitedStatesandothercountries.

Othercompany,product,orservicenamesmaybethetrademarksorservicemarksofothers.

80ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

AppendixB.Abbreviationtable

Thefollowingtablelistsallabbreviationsusedinthismanual.

AbbreviationT erm

BGABallGridArray

CDCompactDisc

CRUCustomerReplaceableUnit

CTOConfigureToOrder

DC

DVDDigitalVideoDisc

EPO

ESD

EUEuropeanUnion

FCCFederalCommunicationsCommission

FRUFieldReplaceableUnit

HDMI

ICs

ISOInternationalStandardizationOrganization

LANLocalareanetwork

LCDLiquidCrystalDisplay

MTMachinetype

MTMMachinetypeandmodel

PCPersonalComputer

POST

RF

TFTs

USBUniversalSerialBus

Directcurrent

Emergencypower-off

Electrostaticdischarge

High-definitionmultimediainterface

Integratedcircuits

Power-onself-test

Radiofrequency

Thin-filmtransistors

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82ThinkPad11eChromebook3rdGenandThinkPadYoga11eChromebook3rdGenHardwareMaintenanceManual

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