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, ko, nb, nl, pl, pt, ro, ru, th, uk, zc, zh]
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HardwareMaintenanceManual
ThinkPad11eChromebookandThinkPadYoga11eChromebook
Page 2
Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage77.
SecondEdition(August2014)
©CopyrightLenovo2014.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
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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.Locations.........31
Locatingcomputercontrols,connectors,and
indicators.................31
Frontview...............31
Left-sideview.............33
Bottomview..............33
LocatingFRUsandCRUs..........34
MajorFRUs..............35
LCDFRUs..............37
MiscellaneouspartsandotherFRUs....40
LookingupFRUinformation.........40
Chapter5.FRUreplacement
notices................41
Commonservicetools...........41
Screwnotices...............41
Hardwareidentity.............42
PrerequisiteforreplacingaFRU........42
Chapter6.Removingorreplacinga
FRU..................45
Generalguidelines.............45
Disablingthebuilt-inbattery.........46
1010Bottomcover.............46
1020Battery...............47
1030Harddiskdrivebracket.........49
1040WirelessLANcard...........50
1050Keyboard..............51
1060Keyboardbezelassembly,speakerassembly,
media-card-readerboard..........52
1070BracketfordummyEthernetconnector,
bracketforUSBconnector,bracketfordc-in
connector,dc-inconnector,systemboard
assembly,andthermalfan..........57
1080LCDunit...............60
RemovinganLCDFRUformodelswithouttouch
panel..................62
2010LCDbezelassembly........62
2020LCDpanel............63
2030Camera/microphoneboard......64
2040Antennakit,hinges,LCDcable,andLED
cableassembly............65
RemovinganLCDFRUformodelswithtouch
panel..................68
3010LCDpanelassembly........68
3020Camera/microphoneboardandsensor
board................70
3030Antennakit,hinges,LCDcable,andLED
cableassembly............72
AppendixA.Notices..........77
Electronicemissionsnotices.........78
Trademarks................78
©CopyrightLenovo2014
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iiHardwareMaintenanceManual
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Aboutthismanual
ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad
ThinkPad11eChromebook
andThinkPadY oga
®
11e
Machinetypes(MT)20DBand20DU
®
products.
Chromebook
Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.
Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPad
products.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safetyinformation”
onpage1andChapter2“Importantserviceinformation”onpage19.
©CopyrightLenovo2014
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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.
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•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.
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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
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–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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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.T elephonenumbersfor
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.Toresumefromsleepmode,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
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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:
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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:
1.acpoweradapter
2.Powercord
3.Bottomcover
4.Keyboard
ForCRUdefinition,see“LocatingFRUsandCRUs”onpage34.
Chapter2.Importantserviceinformation21
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Creatingtherepairshim
AsaLenovoservicetechnician,dothefollowingtocreatetherepairshim:
1.PrepareaUSBstoragedevicewithatleast8gigabyte(GB)space.TherequiredUSBstoragecapacity
dependsonthesizeoftherecoveryimage.
Attention:CreatingtherepairshimwilldeletealldatastoredontheUSBdevice.Toavoiddataloss,
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.Disablethebuilt-inbattery.See“Disablingthebuilt-inbattery”onpage46.
2.Disconnecttheacpoweradapterandallcablesfromthecomputer,andthenremovethebottom
cover.See“1010Bottomcover”onpage46.
3.Removethebattery.See“1020Battery”onpage47.
4.Removetheharddiskdrivebracket.See“1030Harddiskdrivebracket”onpage49.
5.Removethekeyboard.See“1050Keyboard”onpage51.
6.Removethekeyboardbezelassembly.See“1060Keyboardbezelassembly,speakerassembly,
media-card-readerboard”onpage52.
7.Locatethewrite-protectscrewonthesystemboardasshowninthefollowingillustration.Toturnoffthe
write-protectfunction,removethewrite-protectscrew.
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8.Afteryouhaveremovedthewrite-protectscrew,reassemblethecomputer.Reconnecttheacpower
adapterandallcables.
9.Toturnonthewrite-protectfunction,followthepreviousstepstolocatetheholeforthewrite-protect
screwandreinstallthescrew.Thenreassembleyourcomputerandreconnectthecables.
Usingtherepairshim
Tousetherepairshimthatyouhavecreated,dothefollowing:
1.Turnoffthewrite-protectfunction.See“Removingandreinstallingthewrite-protectscrew”onpage22.
2.Attachtheacpoweradaptertothepowerconnectoronthecomputer.Pressandholdescandthe
refreshkey(),andthenpressthepowerbuttontostartthecomputerandenterrecoverymode.
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,youmaypressesctocontinue.
Ifthewrite-protectfunctionisstillon,thisstepwillnotproceed.
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”onpage47
IftheMTMandSNinformationisalreadydisplayed,andmatchthenumbersshownonbottomcover,
pressesctoleavethevaluesastheyare.
.
Chapter2.Importantserviceinformation23
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5.TheStresstestwillrunfor10minutesandthentheFinalAssemblyT estandPack(FATP)sectionwillstart.
Thissectionincludestheindependenttestsforeachcomponent.Followtheinstructionsonthescreen
tostartthetests.Forinformationaboutthefactorytestitems,see“Factorytestitems”onpage24
6.Ifthefactorytestitemsrevealadefectivecomponent,turnoffthecomputer,disconnecttheacpower
adapter,andthenreplacethedefectivecomponent.Forinformationaboutthereplacementprocedure,
seeChapter6“RemovingorreplacingaFRU”onpage45.
7.Turnonthewrite-protectfunction.See“Removingandreinstallingthewrite-protectscrew”onpage22.
8.Turnonthecomputer.Thecomputerentersthefactory-test-imageenvironmentagain.Itis
recommendedthatyourunStressT estandFATPTeststoensurethatnewcomponentsfunction
correctly.
Note:Itisnotnecessarytoturnoffthewrite-protectfunctionagainifadditionalcomponentsmust
bereplaced.
9.RuntheGoogleRequiredT ests.Ifthetestsfinishsuccessfully,alldatastoredonthecomputerwillbe
deletedandthecomputerwillbeturnedoff.IftheGoogleRequiredTestsfails,refertothecommon
mistakesthatleadtoGoogleRequiredT estsfailurein“Factorytestitems”onpage24.
Note:Ifanytestismarkedasfailed,thefinalprocesscannotbecompleted.Thefinalprocesscanbe
forcedtoendbypressingf.Donotforcethefinalprocesstoendwhenacomponentfailsthetest.Force
thefinalprocesstoendonlywhenthetesthastobebypassedbecauseitcannotbeperformed.
10.Aftertherepairprocessfinishes,thebuilt-inbatteryisdisabled.Thesystemisinacleanout-of-box
state.Inordertoturnonthecomputer,attachtheacpoweradaptertothepowerconnectoronthe
computerfirst.Ifapplicable,customersmustre-enrollthesystemforenterpriseenrollment.
.
Factorytestitems
Afterthesystementersthefactory-test-imageenvironment,factorytestitemswillrun.Thefactorytest
processcontainsthefollowingthreetypesoftests:
•StressT est:TheStressTestisdesignedtotesthowthesystemfunctionsunderstressbyrunningthe
maximumworkloadapplications.TheStressTestincludesthetestofmemory,microprocessor,and
graphicscard.Thetesttakesabout10minutestofinish.
•FATPT est:TheFATPT estisdesignedtotesttheindividualcomponenttoverifyitsfunction,suchas
theTPM,display,audio,camera,keyboard,andothercomponents.Itisrecommendedthatyourunall
theFA TPT estitems.SometestitemsmightrequireanHDMImonitororanSDcard.Ifthedevicesare
notavailable,thetestscanbebypassed,butwiththeoveralltestmarkedasfailed.Thiswillrequirethe
finalizedstepoftheGoogleRequiredTeststobeforcedinordertocompletetheservicingofthecomputer
(seestep9in“Usingtherepairshim”onpage23
•GoogleRequiredT ests:GoogleRequiredT estschecksthesystemstatusandhelpsresetthesystemback
tothefactory-defaultsettings.Ifanytestsfails,thesystemcannotbefinalized.Thefollowingitemsare
somecommonmistakesthatleadtoGoogleRequiredTestsfailure:
–HWIDmismatch:EachChromebookhasaknownhardwareconfiguration.Eachconfigurationis
assignedanHWID.HWIDmismatchcanbecausedbyusingunauthorizedparts,ormissingparts.
ForinformationaboutHWID,see“Hardwareidentity”onpage42.
Ifthewrite-protectfunctionisnotturnedoffbeforerecoveringthecomputerwiththerepairshim,it
willalsocauseHWIDmismatch.Forinstructionsonhowtoturnoffthewrite-protectfunction,see
“Removingandreinstallingthewrite-protectscrew”onpage22
–Write-protectfunctionisoff:Systemcannotbefinalizeduntilthewrite-protectfunctionisturned
backon.
).
.
24HardwareMaintenanceManual
Page 31
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
numericanddoesnotdesignateaspecificcountryorregion.ThecustommodelfactsheetfortheMTM
indicateswhichcountrythespecialbidMTMissetupfor.Special-bidofferingisnotgenerallyannounced.
Standardmodel
Standardmodels(fixedconfiguration)areannouncedandofferedtoallcustomers.TheMTMportionofthe
machinelabelconsistsofa4-characterMT,a4-charactermodel,andanalphabetic2-charactercountry
Chapter2.Importantserviceinformation25
Page 32
code.Thecountrycodeassignedisalphabeticandrepresentsadesignatedcountryorregion(example:
20A70009UK).
FRUidentification
UseLenovoeSupporttoidentifymajorFRUs,FRUpartnumbers,andFRUdescriptionsforaproductatan
MT-serialnumberlevel.ExamplesofmajorFRUsaresolid-statedrive,systemboard,andliquidcrystal
display(LCD).
ToidentifythemajorFRUsforaproduct,dothefollowing:
1.Goto:
http://www.lenovo.com/support
2.ClickWarranty&Services.
3.ClickCheckWarrantyStatus.
4.OntheWarrantyStatusLookuppage,clickPartsLookup.
5.Typeyourmachinetypeandserialnumber,andthenclickSubmit.
eSupportalsocanbeusedtoviewthegeneralFRUlistforaproduct.
TogetthegeneralFRUlistforaproduct,dothefollowing:
1.Goto:
http://www.lenovo.com/support
2.ClickParts&Accessories.
3.Followtheinstructionsonthescreentoselectproduct.
4.ClickProductsandPartsDetail.
5.OnthePRODUCTANDP ARTSDET AILpage,clickthePartsDetailtabtoviewtheFRUlist.
Note:TheFRUlistisagenerallistofcomponentsanddoesnotcontainspecificmodelinformation.
26HardwareMaintenanceManual
Page 33
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:
©CopyrightLenovo2014
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Page 34
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.
28HardwareMaintenanceManual
Page 35
Note:Noisefromtheacpoweradapterdoesnotalwaysindicateadefect.
Checkingthebatteryandoperationalcharging
Checkingthebattery
ThissystemsupportsonlybatteriesspeciallydesignedforthisspecificsystemandmanufacturedbyLenovo
oranauthorizedbuilder.Thesystemdoesnotsupportunauthorizedbatteriesorbatteriesdesignedforother
systems.Ifanunauthorizedbatteryorabatterydesignedforanothersystemsisinstalled,thesystemwill
notcharge.
Attention:Lenovohasnoresponsibilityfortheperformanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingoutoftheiruse.
Thebatterystatusindicatorislocatedinthelower-rightcornerofthescreen.Toviewthepercentageof
batterypowerremaining,clickthebatterystatusicon.
Checkingtheoperationalcharging
Tocheckwhetherthebatterychargesproperlyduringoperation,dothefollowing:
1.Dischargethebatteryuntiltheremainedbatterypowerislessthan50%.
2.Performoperationalcharging.Clickthebatterystatusiconinthelower-rightcornerofthescreento
displaydetailedbatteryinformation.Ifitindicatesthatthebatteryisnotcharging,replacethebattery.
3.Checkthebatterystatusagain.Ifthesameerrorstillexists,replacethesystemboard.
Chapter3.Generalcheckout29
Page 36
30HardwareMaintenanceManual
Page 37
Chapter4.Locations
1
2
3
4
5
6
7
8
9
10
11
Thischapterintroducesthelocationsofthehardwarecomponentsonyourcomputer.
Locatingcomputercontrols,connectors,andindicators
Thistopicintroducesthelocationsofthecomputercontrols,connectors,andindicators.
Frontview
FrontviewoftheThinkPad11eChromebook
1Microphone
3Camera4Speakers
5Security-lockslot
7USB3.0connector
9Powerbutton
11Touchpad
1
:TheilluminateddotintheThinkPadlogoworksasasystem-statusindicator.
2Camera-in-useindicator
6HDMI™connector
8Volume-controlbuttons
10System-statusindicator
Blinksforthreetimes:Thecomputerisinitiallyconnectedtopower.
On:Thecomputerison(innormalmode).
Blinksslowly:Thecomputerisinsleepmode.
©CopyrightLenovo2014
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31
Page 38
Off:Thecomputerisoff.
1
2
3
4
5
6
7
8
9
10
11
12
FrontviewoftheThinkPadYoga11eChromebook
1Microphone
3Camera4Speakers
5Security-lockslot
7USB3.0connector
9Powerbutton
11Touchpad12Multi-touchscreen
Note:Themulti-touchscreenisonlyavailableonThinkPadY oga11eChromebook.
1
:TheilluminateddotintheThinkPadlogoworksasasystem-statusindicator.
Blinksforthreetimes:Thecomputerisinitiallyconnectedtopower.
On:Thecomputerison(innormalmode).
Blinksslowly:Thecomputerisinsleepmode.
Off:Thecomputerisoff.
2Camera-in-useindicator
6HDMI™connector
8Volume-controlbuttons
10System-statusindicator
1
32HardwareMaintenanceManual
Page 39
Left-sideview
1
2
6
5
4
3
1
2
1System-statusindicator
3Mediacardslot4Audioconnector
5AlwaysOnUSBconnector(USB2.0connector)
1
:TheilluminateddotintheThinkPadlogoworksasasystem-statusindicator.
1
2Wireless-statusindicator
6Powerconnector
Blinksforthreetimes:Thecomputerisinitiallyconnectedtopower.
On:Thecomputerison(innormalmode).
Blinksslowly:Thecomputerisinsleepmode.
Off:Thecomputerisofforinhibernationmode.
2
:Thewireless-statusindicatorislocatedontheouterlidofthecomputer.
On:Thewirelessfeaturesofthecomputerareon.
Off:Thewirelessfeaturesofthecomputerareoff.
Bottomview
2
1Bottomcover2Fanlouvers
Chapter4.Locations33
Page 40
LocatingFRUsandCRUs
Thistopicintroducesthefollowingserviceparts:
•“MajorFRUs”onpage35
•“LCDFRUs”onpage37
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.Youmightberequiredtoreturnthedefectivepart
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.
•ACRUisidentifiedbyasingleasterisk(*)ortwoasterisks(**)intheCRUIDcolumn.AnNintheCRUIDcolumn
meansthatthepartisnotaCRU.Asingleasterisk(*)meansthatthepartisaself-serviceCRU;twoasterisks
(**)meansthatthepartisanoptional-serviceCRU.
34HardwareMaintenanceManual
Page 41
12
13
a
b
c
11
10
1
2
3
4
5
6
7
8
9
MajorFRUs
Chapter4.Locations35
Page 42
No.FRUdescriptions
1
LCDunit(see“LCDFRUs”onpage37)
2Keyboard**
3
Speakerassembly
4KeyboardbezelassemblyN
5
Thermalfan
6
Systemboardassembly
7
Harddiskdrivebracket(availableonThinkPadY oga11eChromebookonly)
8BasecoverassemblyN
9Bottomcover**
10BatteryN
11WirelessLANcardN
a
BracketfortheUSBconnector(see“MiscellaneouspartsandotherFRUs”onpage40)
b
Bracketforthedc-inconnector(see“MiscellaneouspartsandotherFRUs”onpage40
c
BracketforthedummyEthernetconnector(See“MiscellaneouspartsandotherFRUs”on
page40)
12dc-inconnectorN
13MediacardreaderboardN
CRUID
N
N
N
N
)
36HardwareMaintenanceManual
Page 43
LCDFRUs
1
3
4
5
6
7
2
a
8
b
Formodelswithouttouchpanel:
No.FRUdescriptions
1
LCDbezel
a
Mylarscrewcaps(see“MiscellaneouspartsandotherFRUs”onpage40
2
Camera/microphoneboard
3
LCDpanelwithouttouchfunction
4HingesN
)
CRUID
N
N
N
Chapter4.Locations37
Page 44
No.FRUdescriptions
5
AntennakitN
6LEDcableassemblyN
7
LCDrearcoverassembly
8
LCDcable
b
Hingerubbers(see“MiscellaneouspartsandotherFRUs”onpage40)
CRUID
N
N
N
38HardwareMaintenanceManual
Page 45
Formodelswithtouchpanel:
1
4
b
5
6
7
3
a
8
2
No.FRUdescriptions
1
LCDpanelassemblywithtouchfunction
a
Mylarscrewcaps(see“MiscellaneouspartsandotherFRUs”onpage40
2
Sensorboard
3
Camera/microphoneboard
CRUID
N
)
N
N
4HingesN
b
Hingerubbers(see“MiscellaneouspartsandotherFRUs”onpage40
)
N
Chapter4.Locations39
Page 46
No.FRUdescriptions
5
AntennakitN
6LEDcableassemblyN
7
LCDrearcoverassembly
8
LCDcablefortouchpanel
MiscellaneouspartsandotherFRUs
Miscellaneouspart
FRUdescriptions
Screwkit
Systemmiscellaneouskit
•Bracketforthedc-inconnector
•Bracketforthemicroprocessor
•BracketforthedummyEthernetconnector
•Screwrubbercaps
LCDmiscellaneouskit
•Mylarscrewcaps
•Hingerubbersfortouchmodel
•Hingerubbersfornon-touchmodel
CRUID
N
N
CRUID
No
No
No
OtherFRUs
FRUdescriptions
acpoweradapter*
Powercord*
CRUID
LookingupFRUinformation
FordetailedFRUinformation,includingpartnumbers,descriptions,andsubstitutionpartnumbers,goto
http://www.lenovo.com/serviceparts-lookup.
40HardwareMaintenanceManual
Page 47
Chapter5.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.YoucanfindalistofCRUsforyour
productinthisHardwareMaintenanceManual.Anelectronicversionofthismanualcanbefoundat
http://www.lenovo.com/support.ClickGuides&Manualsandthenfollowtheon-screeninstructionstofind
themanualforyourproduct.YoumightberequiredtoreturnthedefectivepartthatisreplacedbytheCRU.
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.
©CopyrightLenovo2014
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Tightenscrewsasfollows:
90degreesmore
(Cross-section)
180degreesmore
(Cross-section)
•Plastictoplastic
Turnanadditional90degreesafterthescrewheadtouchesthesurfaceoftheplasticpart.
•Logiccardtoplastic
Turnanadditional180degreesafterthescrewheadtouchesthesurfaceofthelogiccard.
Notes:
•Ensurethatyouusethecorrectscrew.Itisrecommendedtousenewscrewsforreplacements.Ifyou
haveatorquescrewdriver,tightenallscrewsfirmlytothetorquespecifiedinthescrewinformation
tableforeachstep.
•Ensurethattorquescrewdriversarecalibratedcorrectlyfollowingcountryspecifications.
Hardwareidentity
Asetofvalidhardwareidentities(HWIDs)areprovidedbyGoogle.Googlelogstheexacthardware
combinationintoaChromebookandcreatesaHWID.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:
1.acpoweradapter
2.Powercord
3.Bottomcover
4.Keyboard
42HardwareMaintenanceManual
Page 49
ForCRUdefinition,see“LocatingFRUsandCRUs”onpage34.
Forinformationabouthowtousetherepairshim,see“Usingtherepairshim”onpage23.
Chapter5.FRUreplacementnotices43
Page 50
44HardwareMaintenanceManual
Page 51
Chapter6.RemovingorreplacingaFRU
ThischapterprovidesinstructionsonhowtoremoveorreplaceaFRU.
CRUstatementforcustomers:
Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,called
a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothers
aredesignatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.For
optional-serviceCRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProvider
installtheCRUaccordingtothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,
LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshippedwithyour
productandareavailablefromLenovoatanytimeuponrequest.YoucanfindalistofCRUsforyourproduct
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,andthendisablethebuilt-inbattery.
Forinstructionsonhowtodisablethebuilt-inbattery,see“Disablingthebuilt-inbattery”onpage46.
WhenremovingorreplacingaFRU,besuretoobservethefollowinggeneralguidelines:
1.Donottrytoserviceanycomputerunlessyouhavebeentrainedandcertified.Anuntrainedpersonruns
theriskofdamagingparts.
2.BeforereplacinganyFRU,reviewChapter5“FRUreplacementnotices”onpage41.
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.
©CopyrightLenovo2014
45
Page 52
Attention:Thesystemboardissensitiveto,andcanbedamagedby,electrostaticdischarge(ESD).Before
2
2
2
2
2
2
2
2
2
3
1
touchingit,establishpersonalgroundingbytouchingagroundpointwithonehandorbyusinganESDstrap.
Disablingthebuilt-inbattery
BeforereplacinganyFRU,ensurethatyouhavedisabledthebuilt-inbatterybydoingthefollowing:
Note:Followtheinstructionsonthescreeninadditiontotheinstructionsinthistopic.
1.Turnoffyourcomputeranddisconnectallcablesfromthecomputer.Connecttheacpoweradapterto
thepowerconnectoronyourcomputer.
2.DothefollowingtoenterDevelopermode:
a.Pressandholdtheesckey,therefreshkey,andthepowerbuttonatthesametime.
WhenthemessageChromeOSismissingordamaged.PleaseinsertarecoveryUSBstickorSDcard.
isdisplayed,pressctrl+d.
Note:IfyouarepromptedtoturnofftheOSverification,pressenter.
b.WhenthemessageOSvericationisOFF .PressSPACEtore-enable.isdisplayed,donotpressthe
spacekey.Thecomputerwillrestartautomatically.Thisprocesstakesseveralminutes.
3.Whenpromptedtologontothecomputer,pressandholdthectrl+alt+forwardkeyatthe
sametime,thentheT erminalwindowisdisplayed.
4.Whenpromptedtologontothelocalhost,typechronosinthelocalhostlogin:fieldandpressenter.
5.Typesudobashinthechronos@localhostfieldandpressenter.
6.Typeectoolbatterycutoffinthelocalhostuserfieldandpressenter.
7.WhenthemessageSUCCESS.Thebatteryhasarrangedacut-offandthesystemshouldbeshutdown
immediately.isdisplayed,disconnecttheacpoweradapterfromthecomputerandthecomputerturns
offimmediately.Thebuilt-inbatteryisdisabled.Waitseveralminutestoletthecomputercool.
1010Bottomcover
Removalstepsofthebottomcover
46HardwareMaintenanceManual
Page 53
Applyinglabelstothebottomcover
1 2
3
7
6
5
4
8
9
10
Thenewbottomcoverassemblyisshippedwithakitcontaininglabelsofseveralkinds.Applythoselabels
whenyoureplacethebottomcoverassembly.Forthelabelsthatarenotshippedwiththenewbottomcover,
peelthemfromtheoldbottomcoverandadherethemtothenewone.
Thefollowingillustrationshowsthelocationofeachlabel.
1S/Nlabel
3Assettag
5Israellabel6Indonesiaratinglabel
7IndonesiaPostellabel8BrazilANATELlabel
9IndiaBISlabel10FCC/IClabel
1020Battery
2Ratinglabel
4SIRIMlabel
Importantnoticesforreplacingabattery
Attention:Lenovohasnoresponsibilityfortheperformanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingoutoftheiruse.
Chapter6.RemovingorreplacingaFRU47
Page 54
Foraccess,removethisFRU:
1
1
1
1
2
•“1010Bottomcover”onpage46
Removalstepsofthebattery
DANGER
Useonlytheauthorizedbatteryspecifiedforyourcomputer.Anyotherbatterycouldigniteor
explode.
StepScrew(quantity)Color
1
M2×L4mm,flat-head,nylon-coated(4)
Torque
Black0.181Nm
(1.85kgf-cm)
48HardwareMaintenanceManual
Page 55
3
4
1030Harddiskdrivebracket
1
Note:TheharddiskdrivebracketisonlyavailableontheThinkPadY oga11eChromebook.
Foraccess,removethisFRU:
•“1010Bottomcover”onpage46
Removalstepsoftheharddiskdrivebracket
Chapter6.RemovingorreplacingaFRU49
Page 56
StepScrew(quantity)Color
2
2
1
1
1
M2×L4mm,flat-head,nylon-coated(1)
Wheninstalling:Ensurethattheharddiskdrivebracketisfirmlyattached.
1040WirelessLANcard
Foraccess,removethisFRU:
•“1010Bottomcover”onpage46
Torque
Black0.181Nm
(1.85kgf-cm)
RemovalstepsofthewirelessLANcard
StepScrew(quantity)Color
2
M2×L3mm,hexagonstarhead,nylon-coated(1)
Torque
Black0.181Nm
(1.85kgf-cm)
50HardwareMaintenanceManual
Page 57
3
Wheninstalling:Attachthegraycabletotheconnectormarked“MAIN”onthecard,andattachtheblack
1
1
2
2
cabletotheconnectormarked“AUX”.
1050Keyboard
Foraccess,removethisFRU:
•“1010Bottomcover”onpage46
Removalstepsofthekeyboard
StepScrew(quantity)Color
1
M2×L4mm,flat-head,nylon-coated(2)
Black0.181Nm
Torque
(1.85kgf-cm)
Chapter6.RemovingorreplacingaFRU51
Page 58
3
4
5
6
Wheninstalling:Ensurethattheconnectorisattachedfirmly.
1060Keyboardbezelassembly,speakerassembly,media-card-reader board
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1050Keyboard”onpage51
52HardwareMaintenanceManual
Page 59
Removalstepsofthekeyboardbezelassembly
1
1
3
3
4
4
4
4
2
2
2
2
StepScrewcapScrew(quantity)Color
1
M2×L4mm,flat-headshoulder,
nylon-coated(2)
StepScrew(quantity)Color
2
3
4
M2.5×L8mm,flat-head,nylon-coated(4)
M2×L4mm,flat-head,nylon-coated(2)
M2-0.4,big-head,nylon-coated(4)Silver
Torque
Black0.181Nm
(1.85kgf-cm)
Torque
Black0.294Nm
(3.0kgf-cm)
Black0.181Nm
(1.85kgf-cm)
0.181Nm
(1.85kgf-cm)
Chapter6.RemovingorreplacingaFRU53
Page 60
5
5
5
5
StepScrew(quantity)Color
6
8
7
5
M2×L4mm,flat-head,nylon-coated(4)
Torque
Black0.181Nm
(1.85kgf-cm)
54HardwareMaintenanceManual
Page 61
9
9
9
10
9
9
9
9
9
Wheninstalling:Ensurethattheconnectorsareattachedfirmly.
1
1
3
2
22
3
Removalstepsofthespeakerassembly
StepScrew(quantity)Color
1
M2×L3mm,flat-headshoulder,nylon-coated(2)
Black0.181Nm
Torque
(1.85kgf-cm)
Chapter6.RemovingorreplacingaFRU55
Page 62
4
4
Removalstepsofthemedia-card-readerboard
1
1
2
5
4
3
StepScrew(quantity)Color
1
Wheninstalling:Ensurethattheconnectorisattachedfirmly.
M2×L3mm,flat-head,nylon-coated(2)
Torque
Black0.181Nm
(1.85kgf-cm)
56HardwareMaintenanceManual
Page 63
1070BracketfordummyEthernetconnector,bracketforUSBconnector,
1
1
2
bracketfordc-inconnector,dc-inconnector,systemboardassembly,
andthermalfan
Importantnoticesforhandlingthesystemboard
Whenhandlingthesystemboard,readthefollowing:
•Thesystemboardhasanaccelerometer,whichcanbebrokenwhenseveralthousandsofG-forces
areapplied.
Note:Droppingasystemboardfromaheightofaslittleas15cm(6inches)sothatitfallsflatonahard
benchcansubjecttheaccelerometertoasmuchas6000G'sofshock.
•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,or
composite.
•Avoidroughhandlingofanykind.
•Ateverypointintheprocess,besurenottodroporstackthesystemboard.
•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatora
corrugatedconductivematerial.
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
RemovalstepsofthebracketfordummyEthernetconnector,bracketforUSBconnector,bracketfor
dc-inconnector,dc-inconnector,systemboardassembly,andthermalfan
Chapter6.RemovingorreplacingaFRU57
Page 64
4
3
3
StepScrew(quantity)Color
5
3
4
M2×L4mm,flat-head,nylon-coated(2)
M2×L5mm,flat-head,nylon-coated(1)
Torque
Black0.181Nm
(1.85kgf-cm)
Black0.181Nm
(1.85kgf-cm)
58HardwareMaintenanceManual
Page 65
6
7
8
9
Chapter6.RemovingorreplacingaFRU59
Page 66
10
11b
11c
11a
11d
12
13
Wheninstalling:Ensurethattheconnectorsareattachedfirmly.
1080LCDunit
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
•“1070BracketfordummyEthernetconnector,bracketforUSBconnector,bracketfordc-inconnector,
dc-inconnector,systemboardassembly,andthermalfan”onpage57
60HardwareMaintenanceManual
Page 67
RemovalstepsoftheLCDunit
1
1
1
1
1
1
1
1
2
2
3
3
3
3
3
StepScrew(quantity)Color
3
M2.5×L5mm,flat-head,nylon-coated(5)
Torque
Black0.294Nm
(3.0kgf-cm)
Chapter6.RemovingorreplacingaFRU61
Page 68
4
4
RemovinganLCDFRUformodelswithouttouchpanel
1
1
ThissectionprovidesinstructionsonhowtoremoveanLCDFRUformodelswithouttouchpanel.
2010LCDbezelassembly
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
•“1070BracketfordummyEthernetconnector,bracketforUSBconnector,bracketfordc-inconnector,
dc-inconnector,systemboardassembly,andthermalfan”onpage57
•“1080LCDunit”onpage60
RemovalstepsoftheLCDbezelassembly
62HardwareMaintenanceManual
Page 69
StepScrewcapScrew(quantity)Color
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
M2.5×L5mm,flat-head,nylon-coated(2)
Wheninstalling:Ensurethatallthelatchesareattachedfirmly.
Torque
Black0.294Nm
(3.0kgf-cm)
2020LCDpanel
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
•“1070BracketfordummyEthernetconnector,bracketforUSBconnector,bracketfordc-inconnector,
dc-inconnector,systemboardassembly,andthermalfan”onpage57
•“1080LCDunit”onpage60
•“2010LCDbezelassembly”onpage62
Chapter6.RemovingorreplacingaFRU63
Page 70
RemovalstepsofLCDpanel
1
1
1
1
2
5
4
0
3
StepScrew(quantity)Color
1
M1.7xL3mm,flat-head,nylon-coated(4)Silver
Wheninstalling:EnsurethattheLCDconnectorisattachedfirmly.
Torque
0.181Nm
(1.85kgf-cm)
2030Camera/microphoneboard
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
64HardwareMaintenanceManual
Page 71
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
2
3
1
•“1070BracketfordummyEthernetconnector,bracketforUSBconnector,bracketfordc-inconnector,
dc-inconnector,systemboardassembly,andthermalfan”onpage57
•“1080LCDunit”onpage60
•“2010LCDbezelassembly”onpage62
•“2020LCDpanel”onpage63
Removalstepsofthecamera/microphoneboard
Wheninstalling:Ensurethattheconnectorisattachedfirmly.
2040Antennakit,hinges,LCDcable,andLEDcableassembly
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
•“1070BracketfordummyEthernetconnector,bracketforUSBconnector,bracketfordc-inconnector,
dc-inconnector,systemboardassembly,andthermalfan”onpage57
•“1080LCDunit”onpage60
•“2010LCDbezelassembly”onpage62
•“2020LCDpanel”onpage63
•“2030Camera/microphoneboard”onpage64
Chapter6.RemovingorreplacingaFRU65
Page 72
Removalstepsoftheantennakit,hinges,andLCDcable
1
2
2
2
2
1
1
1
1
1
1
1
1
3
3
3
3
3
3
StepScrew(quantity)Color
3
M2.5×L3mm,big-head,nylon-coated(6)
Black0.294Nm
Torque
(3.0kgf-cm)
66HardwareMaintenanceManual
Page 73
5
4
4
4
4
6
6
7
Wheninstalling:Whenyouinstallthewirelessantennakit,routethecablesasshowninthefollowing
illustration.Asyouroutethecables,ensurethattheyarenotsubjecttoanytension.T ensioncouldcausethe
cablestobedamagedbythecableguides,orawiretobebroken.
Chapter6.RemovingorreplacingaFRU67
Page 74
a
b
aWLANmainantenna(gray)
bWLANauxiliaryantenna(black)
RemovalstepoftheLEDcableassembly
RemovinganLCDFRUformodelswithtouchpanel
ThissectionprovidesinstructionsonhowtoremoveanLCDFRUformodelswithtouchpanel.
3010LCDpanelassembly
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
68HardwareMaintenanceManual
Page 75
•“1070BracketfordummyEthernetconnector,bracketforUSBconnector,bracketfordc-inconnector,
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
3
dc-inconnector,systemboardassembly,andthermalfan”onpage57
•“1080LCDunit”onpage60
RemovalstepsoftheLCDpanelassembly
StepScrewcapScrew(quantity)Color
1
M2.5×L5mm,flat-head,nylon-coated(2)
Black0.294Nm
Torque
(3.0kgf-cm)
Chapter6.RemovingorreplacingaFRU69
Page 76
2
6
5
4
11
7
Wheninstalling:Ensurethattheconnectorsareattachedfirmly.
3020Camera/microphoneboardandsensorboard
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
•“1070BracketfordummyEthernetconnector,bracketforUSBconnector,bracketfordc-inconnector,
dc-inconnector,systemboardassembly,andthermalfan”onpage57
•“1080LCDunit”onpage60
•“3010LCDpanelassembly”onpage68
70HardwareMaintenanceManual
Page 77
Removalstepsofthecamera/microphoneboard
2
3
1
1
2
Wheninstalling:Ensurethattheconnectorisattachedfirmly.
Removalstepsofthesensorboard
Chapter6.RemovingorreplacingaFRU71
Page 78
Wheninstalling:Takethetwosidesofthesensorboard,andthenpushitintothehookfromtheright
1
2
sidetotheleftside
1.Thentakethetwosidesofthesensorboardandpressitintothehook2.Ensure
thattheconnectorisattachedfirmly.
Note:Donotpressthesurfaceofthesensorboard.
3030Antennakit,hinges,LCDcable,andLEDcableassembly
Foraccess,removetheseFRUsinorder:
•“1010Bottomcover”onpage46
•“1020Battery”onpage47
•“1030Harddiskdrivebracket”onpage49
•“1040WirelessLANcard”onpage50
•“1050Keyboard”onpage51
•“1060Keyboardbezelassembly,speakerassembly,media-card-readerboard”onpage52
•“1070BracketfordummyEthernetconnector,bracketforUSBconnector,bracketfordc-inconnector,
dc-inconnector,systemboardassembly,andthermalfan”onpage57
•“1080LCDunit”onpage60
•“3010LCDpanelassembly”onpage68
•“3020Camera/microphoneboardandsensorboard”onpage70
72HardwareMaintenanceManual
Page 79
Removalstepsoftheantennakit,hinges,LCDcable
1
2
2
2
1
1
1
1
1
1
1
1
2
3
3
3
3
StepScrew(quantity)Color
3
M2.5×L3mm,big-head,nylon-coated(4)
Torque
Black0.294Nm
(3.0kgf-cm)
Chapter6.RemovingorreplacingaFRU73
Page 80
4
4
5
6
6
7
Wheninstalling:Whenyouinstallthewirelessantennakit,routethecablesasshowninthefollowing
illustration.Asyouroutethecables,ensurethattheyarenotsubjecttoanytension.T ensioncouldcausethe
cablestobedamagedbythecableguides,orawiretobebroken.
74HardwareMaintenanceManual
Page 81
a
b
aWLANmainantenna(gray)
bWLANauxiliaryantenna(black)
RemovalstepoftheLEDcableassembly
Chapter6.RemovingorreplacingaFRU75
Page 82
76HardwareMaintenanceManual
Page 83
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.Youcansend
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.
©CopyrightLenovo2014
77
Page 84
Electronicemissionsnotices
ForelectronicemissioninformationonClassBdigitaldevices,refertothecorrespondinginformationin
theUserGuide.
EUContact:Lenovo,Einsteinova21,85101Bratislava,Slovakia
Trademarks
ThefollowingtermsaretrademarksofLenovointheUnitedStates,othercountriesorboth:
Lenovo
ThinkPad
ThinkPadlogo
Yoga
ChromeOSandChromebookaretrademarksofGoogleInc.
ThetermsHDMIandHDMIHigh-DefinitionMultimediaInterfacearetrademarksorregisteredtrademarksof
HDMILicensingLLCintheUnitedStatesandothercountries.
Othercompany,product,orservicenamesmaybethetrademarksorservicemarksofothers.
78HardwareMaintenanceManual
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