Lenovo Yoga 14 Product information

Category
Notebooks
Type
Product information
HardwareMaintenanceManual
ThinkPadYoga14
Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage91.
FirstEdition(October2014)
©CopyrightLenovo2014.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSAcontract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation.....1
Generalsafety...............1
Electricalsafety..............1
Safetyinspectionguide...........2
Handlingdevicesthataresensitivetoelectrostatic
discharge.................3
Groundingrequirements...........4
Safetynotices(multilingualtranslations).....4
Chapter2.Importantservice
information..............19
StrategyforreplacingFRUs.........19
Strategyforreplacingaharddiskdrive,a
hybriddrive,orasolid-statedrive.....19
Importantnoticeforreplacingasystem
board................20
Howtouseerrormessage........20
StrategyforreplacingFRUsforCTO,specialbid
model,andstandardmodels.........20
Productdefinition............20
FRUidentification............21
Chapter3.Generalcheckout.....23
Whattodofirst..............23
Checkoutguide..............24
LenovoSolutionCenter.........24
Quicktestprograms...........24
UEFIdiagnosticprogram.........25
Bootablediagnosticprograms.......26
Powersystemcheckout...........26
Checkingtheacpoweradapter......27
Checkingthebuilt-inbatteryandoperational
charging...............27
Checkingthecoin-cellbattery.......28
Chapter4.Relatedservice
information..............29
Restoringthefactorycontentsbyusingthe
RecoveryDiscSet.............29
RecoveryoverviewfortheWindows8and
Windows8.1operatingsystem........30
Refreshingyourcomputer........30
Resettingyourcomputertothefactorydefault
settings................31
Usingtheadvancedstartupoptions....31
RecoveringyouroperatingsystemifWindows
8orWindows8.1failstostart.......31
Creatingandusingrecoverymedia.....32
UsingtheWindowsrecoveryprogramsonthe
Windows8operatingsystem.........33
Passwords................34
Power-onpassword...........34
Harddiskpassword...........34
Supervisorpassword..........34
Howtoremovethepower-onpassword...35
Howtoremovetheharddiskpassword...35
Powermanagement............36
Screenblankmode(fortheWindows7
operatingsystemonly)..........36
Sleepmode..............36
Hibernationmode...........37
Symptom-to-FRUindex...........37
Numericerrorcodes..........38
Errormessages............39
Beepsymptoms............39
No-beepsymptoms...........40
LCD-relatedsymptoms.........40
Intermittentproblems..........40
Undeterminedproblems.........41
Chapter5.Statusindicators.....43
Chapter6.Functionkeys.......45
Chapter7.Locations.........47
Locatingcomputercontrols,connectors,and
indicators.................47
Frontview...............47
Bottomview..............48
Rearview...............48
LocatingCRUsandFRUs..........49
MajorCRUsandFRUs..........50
LCDFRUs..............52
MiscellaneouspartsandotherFRUs....53
LookingupFRUinformation.........53
Chapter8.FRUreplacement
notices................55
Screwnotices...............55
Retainingserialnumbers...........56
Restoringtheserialnumberofthesystem
unit.................56
RetainingtheUUID...........57
©CopyrightLenovo2014
i
Chapter9.Removingorreplacinga
FRU..................59
Generalguidelines.............59
Beforeservicingthecomputer........60
Disablingthebuilt-inbattery.......60
1010Lenovo-OneLink-connectorcover.....60
1020Keyboard..............61
1030Basecoverassembly..........63
1040Batterypack.............65
1050Internalstoragedriveandthestoragedrive
connector................66
1060Memorymodule............67
1070WirelessLANcard...........68
1080Coin-cellbattery............69
1090ButtonI/Ocard............69
1100Audio/USB/OneLink/acpowercard....70
1110M.2solid-statedrive..........72
1120Speakerassembly...........73
1130ThinkPad-logo-LEDcard........74
1140Mediacardreader...........75
1150Systemboard.............75
1160Thermalfan.............77
1170KeyboardbezelassemblyandLCDunit..78
2010LCDbezelassembly..........80
2020LCDmodule.............81
2030Touchcontrolboard..........82
2040Windows-Start-screen-buttonvibrator...82
2050Hingekit...............83
2060Hingerubberclips...........83
2070Cameraandmicrophonecombocard...84
2080LCDcableassembly..........85
2090Touchcontrolboardcable/ASLsensor
cable..................86
2100ThinkPad-logo-LEDcardontheLCDcover.86
2110WirelessLANassembly.........87
2120Amberlightsensorwithcable......88
AppendixA.Notices..........91
Electronicemissionsnotices.........92
Trademarks................92
AppendixB.Abbreviationtable....93
iiHardwareMaintenanceManual
Aboutthismanual
ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad
®
products.
ThinkPadYoga14
Machinetype(MT)20DMand20DN
Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.
Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPad
products.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safetyinformation”
onpage1
andChapter2“Importantserviceinformation”onpage19.
©CopyrightLenovo2014
iii
ivHardwareMaintenanceManual
Chapter1.Safetyinformation
Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea
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.
©CopyrightLenovo2014
1
Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
Disconnectallpowerbefore:
Performingamechanicalinspection
Workingnearpowersupplies
Removingorinstallingmainunits
Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topower-offthewallboxthatsuppliespowertothemachine,andtolockthewallboxintheoffposition.
Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,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,
ungroundedpowerextensioncables,powersurges,andmissingsafetygrounds.
Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:
Powersupplyunits
Pumps
Blowersandfans
Motorgenerators
Partssimilartothoselistedabove
Thispracticeensurescorrectgroundingoftheunits.
Ifanelectricalaccidentoccurs:
Usecaution;donotbecomeavictimyourself.
Switchoffpower.
Sendanotherpersontogetmedicalaid.
Safetyinspectionguide
Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach
machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians
frominjury.Thisguideaddressesonlythoseitems.Y oushouldusegoodjudgmenttoidentifypotential
safetyhazardsduetoattachmentofnon-ThinkPadfeaturesoroptionsnotcoveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.
2HardwareMaintenanceManual
Considertheseconditionsandthesafetyhazardstheypresent:
Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)
Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor
Mechanicalhazards,suchaslooseormissinghardware
Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning
ofeveryservicetask.Beginthecheckswiththepoweroff,andthepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Poweroffthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityfor0.1ohmorlessbetweentheexternalgroundpinandtheframeground.
b.Thepowercordshouldbetheauthorizedtypespecifiedforyourcomputer.Goto:
http://www.lenovo.com/serviceparts-lookup
c.Insulationmustnotbefrayedorworn.
4.Checkforcrackedorbulgingbatteries.
5.Removethecover.
6.Checkforanyobviousnon-ThinkPadalterations.Usegoodjudgmentastothesafetyofany
non-ThinkPadalterations.
7.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.
8.Checkforworn,frayed,orpinchedcables.
9.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingdevicesthataresensitivetoelectrostaticdischarge
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD.)ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
Avoidcontactwithotherpeople.
Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.
Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen
handlingESD-sensitivedevices.
Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.
Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.
AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.
Chapter1.Safetyinformation3
Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor
referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.
Usetheroundgroundprongoftheacplugonac-operatedcomputers.
Groundingrequirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.
Safetynotices(multilingualtranslations)
Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:
English
Arabic
BrazilianPortuguese
French
German
Hebrew
Japanese
Korean
Spanish
TraditionalChinese
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Lenovo Yoga 14 Product information

Category
Notebooks
Type
Product information

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