Lenovo ThinkPad Edge E431 Owner's manual

HardwareMaintenanceManual
ThinkPadEdgeE431

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage115.
FirstEdition(April2013)
©CopyrightLenovo2013.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.

Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Lasercompliancestatement(multilingual
translations)................17
Chapter2.Importantservice
information..............23
StrategyforreplacingFRUs.........23
Strategyforreplacingaharddiskdriveora
solid-statedrive............24
Importantnoticeforreplacingasystem
board................24
Howtouseerrorcodes.........24
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................24
Productdenition............24
FRUidentication............25
Chapter3.Generalcheckout.....27
Whattodorst..............27
Checkoutguide..............28
LenovoSolutionCenter.........28
Quicktestprograms...........28
UEFIdiagnosticprogram.........29
Bootablediagnosticprograms.......29
Powersystemcheckout...........30
Checkingtheacpoweradapter......30
Checkingoperationalcharging......31
Checkingthebatterypack........31
Checkingthebackupbattery.......32
Chapter4.Relatedservice
information..............33
Restoringthefactorycontentsbyusingthe
RecoveryDiscSet.............33
UsingtheWindowsrecoveryprogramsonthe
Windows8operatingsystem.........34
Passwords................35
Power-onpassword...........35
Harddiskpassword...........35
Supervisorpassword..........35
Howtoremovethepower-onpassword...35
Howtoremovetheharddiskpassword...36
Powermanagement............36
Screenblankmode(fortheWindows7
operatingsystemonly)..........37
Sleepmode..............37
Hibernationmode...........37
Symptom-to-FRUindex...........38
Numericerrorcodes..........38
Errormessages............40
Beepsymptoms............40
No-beepsymptoms...........41
LCD-relatedsymptoms.........41
Intermittentproblems..........41
Undeterminedproblems.........42
Chapter5.Statusindicators.....43
Chapter6.Specialkeys........45
Chapter7.Locations.........47
Locatingcomputercontrols,connectors,and
indicators.................47
Frontview...............47
Rearview...............48
Bottomview..............48
LocatingFRUsandCRUs..........48
MajorFRUsandCRUs..........50
LCDFRUsandCRUs..........52
LookingupFRUinformation.........55
Chapter8.FRUreplacement
notices................57
Screwnotices...............57
Retainingserialnumbers...........58
Restoringtheserialnumberofthesystem
unit.................58
RetainingtheUUID...........59
ReadingorwritingtheECAinformation...59
Chapter9.Removingorreplacinga
FRU..................61
Generalguidelines.............61
RemovingtheSIMcard...........62
1010LenovoOneLinkconnectorcover.....63
1020Batterypack.............63
1030Largebottomcover..........64
1040Smallbottomcover..........65
©CopyrightLenovo2013i

1050Opticaldriveorblankbezel.......66
1060Memorymodules...........66
1070Harddiskdriveassemblyorsolid-statedrive
assembly.................67
1080WirelessWANcardorM.2solid-statedrive.69
1090WirelessLANcard...........71
1100Backupbattery............72
1110Thermalfanassembly.........73
1120Keyboard..............75
1130Keyboardbezel............81
1140Microprocessor............84
1150Systemboardassembly.........85
1160CardreaderwithUSBconnectorsubcard.88
1170DC-inbracket,DC-inconnectorwithRJ45
subcard,andDC-insupportbracket......89
1180Speakerassembly...........92
1190Powerbuttonsubcard.........93
1200LCDunit...............93
1210Basecoverassembly..........98
Formodelswithnon-touchpanel.......100
2010LCDbezelassembly........100
2020LCDnon-touchpanelandhinges...101
2030Camerawithmicrophonecombocard
andLCDcables............103
2040WirelessantennaassemblyandLCD
rearcoverassembly...........105
Formodelswithtouchpanel.........106
2010LCDbezelandtouchpanelLCD
module................106
2020Camerawithmicrophonecombo
card.................108
2030LCDcablesandtouchpanelcontrol
boardcable..............109
2040Hinges..............111
2050WirelessLANantennaassemblyand
LCDrearcoverassembly.........112
AppendixA.Notices.........115
Electronicemissionnotices..........116
Trademarks................116
AppendixB.Abbreviationtable...117
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Aboutthismanual
ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad®products:
ThinkPadEdgeE431MachineTypes(MT)6277and6886
Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.
Important:
ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPadproducts.Use
thismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safety
information”onpage1andChapter2“Importantserviceinformation”onpage23.
©CopyrightLenovo2013iii

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Chapter1.Safetyinformation
Thischapterpresentsthefollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea
ThinkPadnotebookcomputer.
•“Generalsafety”onpage1
•“Electricalsafety”onpage2
•“Safetyinspectionguide”onpage3
•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3
•“Groundingrequirements”onpage4
•“Safetynotices(multilingualtranslations)”onpage4
•“Lasercompliancestatement(multilingualtranslations)”onpage17
Generalsafety
Followtheserulestoensuregeneralsafety:
•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Ensurethatyoucanstandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallybetweenyourfeet.
3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.Donotattempttoliftanyobjectthatweighsmorethan16kg(35lb)orthatyou
thinkistooheavyforyou.
•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.
•Beforeyoustartthemachine,ensurethatotherservicetechniciansandthecustomer'spersonnelare
notinahazardousposition.
•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing
themachine.
•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.
•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Ensurethatyoursleeves
arefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.
•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,about8
centimeters(3inches)fromtheend.
•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing,becausemetal
objectsaregoodelectricalconductors.
•Wearsafetyglasseswhenyouarehammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.
•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.
•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.
•Fanlouversonthemachinehelptopreventoverheatingofinternalcomponents.Donotobstructfan
louversorcoverthemwithlabelsorstickers.
©CopyrightLenovo20131

Electricalsafety
Observethefollowingruleswhenworkingonelectricalequipment.
Important:
•Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterial
thatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.
•Manycustomershave,neartheirequipment,rubberoormatsthatcontainsmallconductivebersto
decreaseelectrostaticdischarges(ESDs).Donotusethistypeofmattoprotectyourselffromelectrical
shock.
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–Removingorinstallingmainunits
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topoweroffthewallboxthatsuppliespowertothemachine,andtolockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.Thatpersonmustbethere
toswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
CAUTION:
Anelectricalshockcanoccuronlywhenthereisacompletecircuit.Byobservingtheabove
rule,youmaypreventacurrentfrompassingthroughyourbody.
–Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor
thattester.
–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas
metaloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages.Instructionsforthese
precautionsareinthesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuring
highvoltages.
•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.
•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistoors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.
•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
•Donotservicethefollowingpartswiththepoweron:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorgenerators
–Unitssimilartothoselistedabove
Thispracticeensurescorrectgroundingoftheunits.
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•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.
Safetyinspectionguide
Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach
machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians
frominjury.Thisguideaddressesonlythoseitems.Y oushouldusegoodjudgmenttoidentifypotential
safetyhazardsduetoattachmentofnon-ThinkPadfeaturesoroptionsnotcoveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutrstcorrectingtheproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)
•Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning
ofeveryservicetask.Beginthecheckswiththepoweroff,andthepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Turnoffthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityfor0.1ohmorlessbetweentheexternalgroundpinandtheframeground.
b.Thepowercordshouldbetheauthorizedtypespeciedforyourcomputer.Goto:
http://www.lenovo.com/serviceparts-lookup.
c.Insulationmustnotbefrayedorworn.
4.Checkforcrackedorbulgingbatteries.
5.Removethecover.
6.Checkforanyobviousnon-ThinkPadalterations.Usegoodjudgmentastothesafetyofany
non-ThinkPadalterations.
7.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetallings,contamination,wateror
otherliquids,orsignsofreorsmokedamage.
8.Checkforworn,frayed,orpinchedcables.
9.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingdevicesthataresensitivetoelectrostaticdischarge
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
ESD.ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.ProtectagainstESD
damagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthepersonhandlingthe
partareallatthesamecharge.
Chapter1.Safetyinformation3

Notes:
1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.
2.EnsurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeople.
•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeevenwhen
youarewearingawriststrap.
•Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen
handlingESD-sensitivedevices.
•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecic
servicerequirement.
Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.
–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.
–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor
referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.
–Usetheroundgroundprongoftheacplugonac-operatedcomputers.
Groundingrequirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.
Safetynotices(multilingualtranslations)
Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:
•English
•Arabic
•BrazilianPortuguese
•French
•German
•Hebrew
•Japanese
•Korean
•Spanish
•TraditionalChinese
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