Lenovo L520, L420, L421 User Manual

HardwareMaintenanceManual

ThinkPadL420,L421,andL520

Note

Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformationunder
AppendixA“Notices”onpage165

.

SecondEdition(April2011)

©CopyrightLenovo2011.

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)................18

Chapter2.Importantservice

information..............25

StrategyforreplacingFRUs.........25

Strategyforreplacingaharddiskdrive...26
Importantnoticeforreplacingasystem

board................26

Howtouseerrormessage........26

StrategyforreplacingFRUsforCTO,CMV ,and

GAV...................26

Productdenition............26

FRUidenticationforCTO,CMV ,andGAV

products...............27

Powermanagement............40

Screenblankmode...........40

Sleep(standby)mode..........40

Hibernationmode...........41

Symptom-to-FRUindex...........41

Numericerrorcodes..........42

Errormessages............44

No-beepsymptoms...........44

LCD-relatedsymptoms.........44

Intermittentproblems..........45

Undeterminedproblems.........45

Chapter5.Statusindicators.....47

Chapter6.Fnkeycombinations...49

Chapter7.FRUreplacement

notices................53

Screwnotices...............53

Retainingserialnumbers...........54

Restoringtheserialnumberofthesystem

unit.................54

RetainingtheUUID...........54

ReadingorwritingtheECAinformation...55

Chapter3.Generalcheckout.....29

Whattodorst..............29

Checkoutguide..............30

DiagnosticsusingPC-DoctorforDOS....30

LenovoThinkVantageT oolbox.......33

FRUtests...............33

Powersystemcheckout...........34

Checkingtheacpoweradapter......34

Checkingoperationalcharging......35

Checkingthebatterypack........35

Checkingthebackupbattery.......36

Chapter4.Relatedservice

information..............37

RestoringthefactorycontentsbyusingRecovery

DiscSet.................37

Passwords................38

Power-onpassword...........38

Hard-diskpassword...........38

Supervisorpassword..........39

Howtoremovethepower-onpassword...39
Howtoremovethehard-diskpassword...39

Chapter8.Removingandreplacinga

FRU..................57

1010Batterypack.............57

1020ExpressCardblankbezelandMediaCard

blankbezel................58

1030Opticaldriveortravelcover.......60

1040Thermalcover.............61

1050Harddiskdriveorsolidstatedrive

assembly.................62

1060DIMM................65

1070Fanassembly.............66

1080CPU................68

1090SIMslotcover............69

1110WirelessWANslotcoverandPCIExpress

MiniCardforwirelessWAN..........71

1110mSATAsolidstatedrive.........73

1120Palmrestassemblywithcables......74

1130PCIExpressMiniCardforwirelessLAN..78

1140Backupbattery............80

1150Bluetoothdaughtercard........80

1160MediaCardReaderslotboardandMedia

CardReadercableassembly.........81

1170Keyboard..............83

©CopyrightLenovo2011

i

1180Keyboardbezel............85

1190LCDunit...............87

2010T opshieldingassembly.........90

2020Systemboardassembly.........93

2030USBconnectorboardandUSBcable

assembly.................98

2040DC-incableandbasecover.......100

2050LCDfrontbezel............103

2060Speakerassembly...........104

2070Integratedcamera...........105

2080Antennaassembly...........106

2090Hinges,LCDpanel,LCDcable,andLCDrear

coverassembly..............108

Chapter9.Locations........113

Frontview................113

Rearview.................114

Bottomview...............114

Keyboard.................152

Miscellaneousparts............153

acpoweradapters.............154

Powercords...............155

Recoverydiscs..............156

WindowsXPProfessional(32bit)DVDs...156
WindowsVistaHomeBasic(32bit)DVDs..157
WindowsVistaBusiness(32bit)DVDs...157

Windows7HomeBasic(32bit)DVDs....158

Windows7HomePremium(32bit)DVDs..158
Windows7HomePremium(64bit)DVDs..159

Windows7Professional(32bit)DVDs....160

Windows7Professional(64bit)DVDs....160

Windows7Ultimate(32bit)DVDs.....162

Windows7Ultimate(64bit)DVDs.....162

Windows7Starter(32bit)DVDs......162

Commonservicetools...........163

Chapter10.Partslist........115

Overall..................116

LCDFRUs................144

AppendixA.Notices........165

Electronicemissionsnotices.........166

Trademarks................166

iiHardwareMaintenanceManual

Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad

ThinkPadL420

MachineType(MT)7826,7827,7829,7853,7854,and7856

ThinkPadL421

MT7826,7827,7829,7853,7854,and7856

ThinkPadL520

MT5015,5016,5017,5019,7859,and7860

®

Notebookproducts.

Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.

Important:

ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPadproducts.Use
thismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safety
information”onpage1

andChapter2“Importantserviceinformation”onpage25.

©CopyrightLenovo2011

iii

ivHardwareMaintenanceManual

Chapter1.Safetyinformation

Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservice
aThinkPadNotebook.

•“Generalsafety”onpage1

•“Electricalsafety”onpage2

•“Safetyinspectionguide”onpage3

•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3

•“Groundingrequirements”onpage4

•“Safetynotices(multilingualtranslations)”onpage4

•“Lasercompliancestatement(multilingualtranslations)”onpage18

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.

©CopyrightLenovo2011

1

Electricalsafety

Observethefollowingruleswhenworkingonelectricalequipment.

Important:

Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterial
thatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.
Manycustomershave,neartheirequipment,rubberoormatsthatcontainsmallconductivebersto
decreaseelectrostaticdischarges.Donotusethistypeofmattoprotectyourselffromelectricalshock.

•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

metaloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;Instructionsforthese
precautionsareinthesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuring
highvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistoors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.

•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.

•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorgenerators
–Similarunitstolistedabove
Thispracticeensurescorrectgroundingoftheunits.

•Ifanelectricalaccidentoccurs:

2HardwareMaintenanceManual

–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.Poweroffthecomputer.Disconnectthepowercord.

3.Checkthepowercordfor:

a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground

continuityfor0.1ohmorlessbetweentheexternalgroundpinandtheframeground.

b.Thepowercordshouldbethetypespeciedinthepartslist.

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
electrostaticdischarge(ESD.)ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.

Notes:

1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.

Chapter1.Safetyinformation3

2.MakesurethattheESDprotectivedevicesyouusehavebeencerti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.Youcanusecoaxorconnector-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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16HardwareMaintenanceManual

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Chapter1.Safetyinformation17

Lasercompliancestatement(multilingualtranslations)

Thelasercompliancestatementsinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•BrazilianPortuguese

•French

•German

•Hebrew

•Japanese

•Korean

•Spanish

•TraditionalChinese

18HardwareMaintenanceManual

Chapter1.Safetyinformation19

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Chapter1.Safetyinformation21

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Chapter1.Safetyinformation23

24HardwareMaintenanceManual

Chapter2.Importantserviceinformation

Thischapterpresentsfollowingimportantserviceinformationthatappliestoallmachinetypessupportedby
thismanual:

•“StrategyforreplacingFRUs”onpage25
–“Strategyforreplacingaharddiskdrive”onpage26
–“Importantnoticeforreplacingasystemboard”onpage26
–“Howtouseerrormessage”onpage26

•“StrategyforreplacingFRUsforCTO,CMV,andGAV”onpage26
–“Productdenition”onpage26
–“FRUidenticationforCTO,CMV ,andGAVproducts”onpage27

Important:

•AdvisecustomerstocontacttheLenovoCustomerSupportCenteriftheyneedanyassistancein
obtainingorinstallinganysoftwarexes,drivers,andBIOSdownloads.TelephonenumbersforLenovo
Supportareavailableat:
http://www.lenovo.com/support/phone

•SystemDisassembly/ReassemblyvideosthatshowtheFRUremovalsorreplacementsfortheLenovo
authorizedservicetechniciansareavailableinthefollowingsupportsite:
http://www.lenovoservicetraining.com/ion/

•AdvisecustomerstocontacttheCustomerSupportCenterat800-426-7378iftheyneedassistancein
obtainingorinstallinganysoftwarexes,drivers,andBIOSdownloads.

•CustomersinCanadashouldcalltheCustomerSupportCenterat800-565-3344forassistanceor
downloadinformation.

®

StrategyforreplacingFRUs

Beforereplacingparts:

Makesurethatallsoftwarexes,drivers,andBIOSdownloadsareinstalledbeforereplacinganyFRUs

listedinthismanual.

Afterasystemboardisreplaced,ensurethatthelatestBIOSisloadedtothesystemboardbefore
completingtheserviceaction.

Todownloadsoftwarexes,drivers,andBIOS,doasfollows:

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

2.EntertheproductnumberofthecomputerorpressAuto-detectbuttononthescreen.

3.SelectDownloads&Drivers.

4.Followthedirectionsonthescreenandinstallthenecessarysoftware.

UsethefollowingstrategytopreventunnecessaryexpenseforreplacingandservicingFRUs:

•IfyouareinstructedtoreplaceaFRUbutthereplacementdoesnotcorrecttheproblem,reinstall
theoriginalFRUbeforeyoucontinue.

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

©CopyrightLenovo2011

25

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

Attention:Thesetupcongurationonthecomputeryouareservicingmayhavebeencustomized.Running
AutomaticCongurationmayalterthesettings.Notethecurrentcongurationsettings(usingtheView
Congurationoption);then,whenservicehasbeencompleted,verifythatthosesettingsremainineffect.

Strategyforreplacingaharddiskdrive

Alwaystrytorunalow-levelformatbeforereplacingaharddiskdrive.Thiswillcauseallcustomerdataon
theharddisktobelost.Besurethatthecustomerhasacurrentbackupofthedatabeforedoingthistask.

Attention:Thedrivestartupsequenceinthecomputeryouareservicingmayhavebeenchanged.Be
extremelycarefulduringwriteoperationssuchascopying,saving,orformatting.Ifyouselectanincorrect
drive,dataorprogramscanbeoverwritten.

Importantnoticeforreplacingasystemboard

Somecomponentsmountedonasystemboardareverysensitive.Improperhandlingofasystemboardcan
causedamagetothosecomponents,andmaycauseasystemmalfunction.

Attention:Whenhandlingasystemboard:

•Donotdropasystemboardorapplyanyexcessiveforcetoit.

•Avoidroughhandlingofanykind.

•AvoidbendingasystemboardandhardpushingtopreventcrackingateachBGA(BallGridArray)chipset.

Howtouseerrormessage

Usetheerrorcodesdisplayedonthescreentodiagnosefailures.Ifmorethanoneerrorcodeisdisplayed,
beginthediagnosiswiththersterrorcode.Whatevercausesthersterrorcodemayalsocausefalseerror
codes.Ifnoerrorcodeisdisplayed,seewhethertheerrorsymptomislistedintheSymptom-to-FRU
Indexforthecomputeryouareservicing.

StrategyforreplacingFRUsforCTO,CMV ,andGAV

Productdenition

DynamicCongureToOrder(CTO)

ThisprovidestheabilityforacustomertocongureanIBM
thiscongurationsenttofulllment,whereitisbuiltandshippeddirectlytothecustomer.Themachine
label,ProductEntitlementWarehouse(PEW),eSupport,andtheHMMwillloadtheseproductsasthe4-digit
MTand3-digitmodel,wheremodel=“CTO”(Example:1829-CTO).

CustomModelVariant(CMV)

ThisisauniquecongurationthathasbeennegotiatedbetweenIBMorLenovoandthecustomer.Aunique
4-digitMTand3-digitmodelisprovidedtothecustomertoplaceorders(Example:1829-W15).ACMV
isaspecialbidoffering.Therefore,itisNOTgenerallyannounced.

•TheMTMportionofthemachinelabelisthe4-digitMTand3-digitmodel,wheremodel=“CTO”
(Example:1829-CTO).ThePRODUCTIDportionofthemachinelabelisthe4-digitMTand3-digitCMV
model(Example:1829-W15).

•ThePEWrecordisthe4-digitMTand3-digitmodel,wheremodel=“CTO”(Example:1829-CTO).

®

oraLenovosolutionfromaneSite,andhave

26HardwareMaintenanceManual

•eSupportwillshowboththeCTOandCMVmachinetypemodels(Example:1829-CTOand1829-W15
willbefoundontheeSupportsite.)

•TheHMMwillhavethe4-digitMTand3-digitCTOmodelonly(Example:1829-CTO).Again,CMVsare
custommodelsandarenotfoundintheHMM.

GeneralAnnounceVariant(GAV)

Thisisastandardmodel(xedconguration).GAVsareannouncedandofferedtoallcustomers.TheMTM
portionofthemachinelabelisa4-digitMTand3-digitmodel,wheremodel=a“xedpartnumber”,not
“CTO”(Example:1829-F1U).Also,PEW,eSupport,andtheHMMwilllisttheseproductsunderthesame
xedmodelnumber.

FRUidenticationforCTO,CMV,andGAVproducts

TherearethreeinformationresourcestoidentifywhichFRUsareusedtosupportCTO,CMV ,andGAV
products.ThesesourcesarePEW ,eSupport,andtheHMM.

UsingPEW

•PEWistheprimarysourceforidentifyingFRUpartnumbersandFRUdescriptionsforthekeycommodities
forCTO,CMVandGAVproductsataMT-serialnumberlevel.Anexampleofkeycommoditiesarehard
diskdrives,systemboards,microprocessors,LiquidCrystalDisplays(LCDs),andmemory.

•Remember,allCTOandCMVproductsareloadedinPEWunderthe4-digitMTand3-digitmodel,where
model=“CTO”(Example:1829-CTO).GAVsareloadedinPEWunderthe4-digitMTand3-digitmodel,
wheremodel=a“xedpartnumber”,not“CTO”(Example:1829-F1U).

•PEWcanbeaccessedatthefollowingWebsite:
http://www.lenovo.com/support/site.wss/document.do?lndocid=LOOK-WARNTY
SelectWarrantylookup.InputtheMTandtheSerialnumberandthelistofkeycommoditieswillbe
returnedinthePEWrecordunderCOMPONENTINFORMA TION.

UsingeSupport

ForKeyCommodities(Examples-harddiskdrive,systemboard,microprocessor,LCD,andmemory)

•eSupportcanbeusedtoviewthelistofkeycommoditiesbuiltinaparticularmachineserial(thisisthe
samerecordfoundinPEW).

•eSupportcanbeaccessedatthefollowingWebsite:http://www.lenovo.com/support

•Toviewthekeycommodities,clickonPARTSINFORMATION,thenPARTSLOOKUP .Typeinthemodel
typeandserialnumber.ThekeycommoditieswillbereturnedintheeSupportrecordunderPARTS
SHIPPEDWITHYOURSYSTEM.

FortheRemainingFRUs(thecompletelistofFRUsattheMTModellevel)

•eSupportcanbeusedtoviewthecompletelistofFRUsforamachinetypeandmodel.

•ToviewthecompletelistofFRUs,typeinthemachinetypeandmodel(Example:1829-CTO)under
QUICKPATH.Under“ViewbyDocumentT ype”selectP ARTSINFORMA TION.Under“FilterbyCategory”
selectSERVICEP ARTS.Under“PartsInformationbyDate”selectSYSTEMSERVICEP ARTS.Thelistof
servicepartsbydescription,withapplicablemachinetypemodelandFRUwillbedisplayed.

UsingtheHMM

ForKeyCommodities(Examples-harddiskdrive,systemboard,microprocessor,LCD,andmemory)

UsetheHMMasaback-uptoPEWandeSupporttoviewthecompletelistofFRUsattheMTModellevel.

Chapter2.Importantserviceinformation27

28HardwareMaintenanceManual

Chapter3.Generalcheckout

Thischapterpresentsfollowinginformation:

•“Whattodorst”onpage29

•“Checkoutguide”onpage30
–“DiagnosticsusingPC-DoctorforDOS”onpage30
–“LenovoThinkVantageT oolbox”onpage33
–“FRUtests”onpage33

•“Powersystemcheckout”onpage34

ThedescriptionsinthischapterapplytoanyThinkPadmodelthatsupportsthePC-Doctor

®

forDOS

diagnosticsprogram.Somedescriptionsmightnotapplytoyourparticularcomputer.

Beforeyougotothecheckoutguide,besuretoreadthefollowingimportantnotes.

Importantnotes:

•Onlycertiedtrainedpersonnelshouldservicethecomputer.

•BeforereplacinganyFRU,readtheentirepageonremovingandreplacingFRUs.

•WhenyoureplaceFRUs,usenewnylon-coatedscrews.

•Beextremelycarefulduringsuchwriteoperationsascopying,saving,orformatting.Drivesinthecomputer
thatyouareservicingsequencemighthavebeenaltered.Ifyouselectanincorrectdrive,dataorprograms
mightbeoverwritten.

•ReplaceaFRUonlywithanotherFRUofthecorrectmodel.WhenyoureplaceaFRU,makesurethatthemodel
ofthemachineandtheFRUpartnumberarecorrectbyreferringtotheFRUpartslist.

•AFRUshouldnotbereplacedbecauseofasingle,unreproduciblefailure.Singlefailurescanoccurfora
varietyofreasonsthathavenothingtodowithahardwaredefect,suchascosmicradiation,electrostaticdischarge,
orsoftwareerrors.ConsiderreplacingaFRUonlywhenaproblemrecurs.IfyoususpectthataFRUisdefective,
cleartheerrorlogandrunthetestagain.Iftheerrordoesnotrecur,donotreplacetheFRU.

•BecarefulnottoreplaceanondefectiveFRU.

Whattodorst

WhenyoudoreturnaFRU,youmustincludethefollowinginformationinthepartsexchangeformor
partsreturnformthatyouattachtoit:

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,modication,unsuitablephysicaloroperatingenvironment,orimproper
maintenancebythecustomer.Followingisalistofsomecommonitemsthatarenotcoveredunderwarranty
andsomesymptomsthatmightindicatethatthesystemwassubjectedtostressbeyondnormaluse.

Beforecheckingproblemswiththecomputer,determinewhetherthedamageiscoveredunderthewarranty
byreferringtothefollowinglist:

Thefollowingarenotcoveredunderwarranty:

•LCDpanelcrackedfromtheapplicationofexcessiveforceorfrombeingdropped

©CopyrightLenovo2011

29

•Scratched(cosmetic)parts

•Distortion,deformation,ordiscolorationofthecosmeticparts

•Plasticparts,latches,pins,orconnectorsthathavebeencrackedorbrokenbyexcessiveforce

•Damagecausedbyliquidspilledintothesystem

•DamagecausedbytheimproperinsertionofaPCCardortheinstallationofanincompatiblecard

•Improperdiscinsertionoruseofanopticaldrive

•Diskettedrivedamagecausedbypressureonthediskettedrivecover,foreignmaterialinthedrive,
ortheinsertionofadiskettewithmultiplelabels

•Damagedorbentdisketteejectbutton

•Fusesblownbyattachmentofanonsupporteddevice

•Forgottencomputerpassword(makingthecomputerunusable)

•Stickykeyscausedbyspillingaliquidontothekeyboard

•Useofanincorrectacpoweradapteronlaptopproducts

Thefollowingsymptomsmightindicatedamagecausedbynonwarrantedactivities:

•Missingpartsmightbeasymptomofunauthorizedserviceormodication.

•Ifthespindleofaharddiskdrivebecomesnoisy,itmayhavebeensubjectedtoexcessiveforce,
ordropped.

Checkoutguide

UsethefollowingproceduresasaguideinidentifyingandcorrectingproblemswiththeThinkPadNotebook.

Note:ThediagnostictestsareintendedtotestonlyThinkPadproducts.Theuseofnon- ThinkPadproducts,
prototypecards,ormodiedoptionscanleadtofalseindicationsoferrorsandinvalidsystemresponses.

1.Identifythefailingsymptomsinasmuchdetailaspossible.

2.Verifythesymptoms.T rytore-createthefailurebyrunningthediagnostictestorbyrepeatingthe
operation.

DiagnosticsusingPC-DoctorforDOS

TheThinkPadNotebookhasatestprogramcalledPC-DoctorforDOS(hereaftercalledPC-Doctor.)Y oucan
detecterrorsbyrunningthediagnosticstestincludedinPC-Doctor.

Note:PC-DoctorforDOSisavailableatthefollowingWebsite:

http://www.lenovo.com/support

TocreatethePC-DoctordiagnosticCD,followtheinstructionsontheWebsite.

Forsomepossiblecongurationsofthecomputer,PC-Doctormightnotruncorrectly.T oavoidthisproblem,
youneedtoinitializethecomputersetupbyuseoftheBIOSSetupUtilitybeforeyourunPC-Doctor.

ToenterBIOSSetupUtility,doasfollows:

1.T urnonthecomputer.

2.WhentheThinkPadlogocomesup,immediatelypressF1toentertheBIOSSetupUtility.

Note:Ifasupervisorpasswordhasbeensetbythecustomer,BIOSSetupUtilitymenuappearsafterthe
passwordisentered.Y oucanstarttheutilitybypressingEnterinsteadofenteringthesupervisorpassword;
however,youcannotchangetheparametersthatareprotectedbythesupervisorpassword.

OntheBIOSSetupUtilityscreen,pressF9,Enter,F10,andthenEnter.

30HardwareMaintenanceManual

Note:Whenyouinitializethecomputerconguration,somedevicesaredisabled,suchastheserialport.If

Diagnostics

Run Normal Test
Run Quick Test
CPU/Coprocessor
Systemboard
Video Adapter
Fixed Disks
Diskette Drives
Other Devices
Communication

Advanced Memory Tests

Interactive Tests Hardware Info Utility Quit F1=Help

PC-DOCTOR 2.0 Copyright 2008 PC-Doctor, Inc. All Rights Reserved.

Use the cursor keys and ESC to move in menus.Press ENTER to select.

Wireless LAN

youtestoneofthesedevices,youwillneedtoenableitbyusingCongurationutilityforDOS.Theutilityis
availableonthefollowingWebsite:http://www.lenovo.com/support

PC-Doctorcannotbeusedtotestadevicethatisinthedockingstation,evenifthecomputersupportsthe
dockingstation.TotestaUSBdevice,connectittotheUSBconnectorofthecomputer.

Testingthecomputer

Note:ThePC-DoctordiagnosticCDdoesnotsupportanyopticaldrivesconnectedthroughUSBdevicesor

anyothers.ItsupportsonlytheinternalopticaldriveoftheThinkPadNotebook.

Torunthetest,doasfollows:

1.T urnoffthecomputer.

2.Makesurethattheinternalopticaldrivethatissupportedasastartupdeviceisattachedtothe
computeryouareservicing.

3.T urnonthecomputer.Ifthecomputercannotbepoweredon,goto“Powersystemcheckout”on
page34,andcheckthepowersources.

Ifanerrorcodeappears,goto“Symptom-to-FRUindex”onpage41.

4.WhentheThinkPadlogocomesup,immediatelypressF12toentertheBootMenu.

5.InsertthePC-DoctorCDintotheinternalopticaldrive.

6.PresscursorkeystoselectA T APICDx(x:0,1,...)andthenpressEnter.

7.Followtheinstructionsonthescreen.

8.ThemainpanelofPC-Doctorappears.

9.SelectDiagnosticswiththearrowkeys,andpressEnter.

Note:Y oucanselectanitemnotonlywiththearrowkeys,butalsowiththeT rackPoint

®

InsteadofpressingEnter,clicktheleftbutton.

Apull-downmenuappears.(Itsexactformdependsonthemodel.)

Note:PC-Doctormenudoesnotmeantheformalsupportdevicelist.Someunsupporteddevicenames
mayappearinthePC-Doctormenu.

Theoptionsonthetestmenuareasfollows:

pointer.

Chapter3.Generalcheckout31

DiagnosticsInteractiveTests

•RunNormalT est

•RunQuickT est

•CPU/Coprocessor

•Systemboard

•VideoAdapter

•SerialPorts

•FixedDisks

•DisketteDrives

•OtherDevices

•WirelessLAN

•AdvancedMemoryT ests

Notes:

•IntheKeyboardtestinInteractiveT ests,theFnkeyshouldbehelddownforatleast2seconds;otherwise,it
cannotbesensed.

•VideoAdaptertestsupportsonlytheLCDdisplayontheThinkPadNotebook.Ifyouhaveanexternalmonitor
attachedtothecomputer,detachitbeforerunningPC-DoctorforDOS.

•T otestDigitalSignatureChip,thesecuritychipmustbesettoActive.

•Keyboard

•Video

•InternalSpeaker

•Mouse

•Diskette

•SystemLoad

•OpticalDriveT est

•IntelWLANRadioT est

10.Runtheapplicablefunctiontest.

11.Followtheinstructionsonthescreen.Ifthereisaproblem,PC-Doctorshowsmessagesdescribingit.

12.T oexitthetest,selectQuit—ExitDiag.Tocancelthetest,pressEsc.

Note:AfterrunningPC-Doctor,checkthetimeanddateonthesystemandresetthemiftheyareincorrect.

DetectingsysteminformationwithPC-Doctor

PC-Doctorcandetectthefollowingsysteminformation:

HardwareInfo

SystemConguration
MemoryContents
PhysicalDiskDrives
LogicalDiskDrives
VGAInformation
IDEDriveInfo
PCIInformation
PNPISAInfo
SMBIOSInfo
VESALCDInfo
HardwareEventsLog

Utility

RunExternalT ests
SurfaceScanHardDisk
BenchmarkSystem
DOSShell
TechSupportForm
BatteryRundown
ViewTestLog
PrintLog
SaveLog
FullEraseHardDrive
QuickEraseHardDrive

32HardwareMaintenanceManual

LenovoThinkVantageT oolbox

LenovoThinkVantage

®

ToolboxisadiagnosticprogramthatworksthroughtheWindows
Itenablesyoutoviewsymptomsofcomputerproblemsandsolutionsforthem,andincludesautomatic
noticationwhenactionisrequired,computingassistance,advanceddiagnostics,anddiagnostichistory.

Note:ToinstallthelatestLenovoThinkVantageToolboxonthecomputer,goto
http://web.lenovothinkvantagetoolbox.com/,clickDownloadLenovoThinkVantageToolbox,andfollow
theinstructionsonthescreen.

Torunthisprogram,doasfollows:

Windows7:

ClickStart➙ControlPanel➙SystemandSecurity➙Lenovo-SystemHealthandDiagnostics.

®

operatingsystem.

WindowsVista

®

andWindowsXP:

ClickStart➙AllPrograms➙ThinkVantage➙LenovoThinkVantageT oolbox.

Followtheinstructionsonthescreen.LenovoThinkVantagT oolboxalsohasproblemdeterminationaidsthat
determinesoftwareandusageproblems.

Foradditionalinformationaboutthisprogram,seetheHelpfortheprogram.

FRUtests

ThefollowingtableshowsthetestforeachFRU.

Table1.FRUtests

FRUApplicabletest

Systemboard1.Diagnostics➙CPU/Coprocessor

2.Diagnostics➙Systemboard

3.IfthedockingstationortheportreplicatorisattachedtotheThinkPadcomputer,
detachit.

4.Placethecomputeronahorizontalsurface,andrunDiagnostics➙ThinkPad

Devices➙HDDActiveProtectionT est.

Note:Donotapplyanyphysicalshocktothecomputerwhilethetestisrunning.

Power

LCDunit

Audio

SpeakerInteractiveT ests➙InternalSpeaker

Keyboard

Harddiskdriveorsolidstate
drive

Diskettedrive1.Diagnostics➙DisketteDrives

Diagnostics➙ThinkPadDevices➙ACAdapter➙Battery1(Battery2)

1.Diagnostics➙VideoAdapter

2.InteractiveT ests➙Video

EntertheBIOSSetupUtilityandchangeSerialA T A(SA T A)settingtoCompatibility,
andrunDiagnostics➙OtherDevice➙CodecT est

Note:OnceAudiotestisdone,thenosoundisheardthistest.Inthiscase,turnoff
andturnonthecomputer.Then,runthistestagain.

1.Diagnostics➙Systemboard➙Keyboard

2.InteractiveT ests➙Keyboard

EntertheBIOSSetupUtilityandchangeSerialA T A(SA T A)settingtoCompatibility,
andrunDiagnostics➙FixedDisks

2.InteractiveT ests➙Diskette

Chapter3.Generalcheckout33

Table1.FRUtests(continued)

FRUApplicabletest

Opticaldrive1.Diagnostics➙OtherDevices➙OpticalDrive

2.InteractiveT ests➙OpticalDriveT est

Memory

TrackPointorpointing
device

TouchPad

1.IftwoDIMMsareinstalled,removeoneofthemandrunDiagnostics➙Advanced

MemoryT ests.

2.Iftheproblemdoesnotrecur,returntheDIMMtoitsplace,removetheotherone,
andrunthetestagain.

IftheTrackPointdoesnotwork,checkthecongurationasspeciedintheBIOSSetup
Utility.IftheT rackPointisdisabled,selectAutomatictoenableit.

AfteryouusetheT rackPoint,thepointermaydriftonthescreenforashorttime.This
driftcanoccurwhenaslight,steadypressureisappliedtotheT rackPointpointer.
Thissymptomisnotahardwareproblem.Ifthepointerstopsafterashorttime,no
serviceactionisnecessary.

IfenablingtheT rackPointdoesnotcorrecttheproblem,continuewiththefollowing:

•InteractiveT ests➙Mouse

IftheTouchPaddoesnotwork,checkthecongurationasspeciedintheBIOSSetup
Utility.IftheT ouchPadisdisabled,selectAutomatictoenableit.IfenablingtheT ouch
Paddoesnotcorrecttheproblem,continuewiththefollowing:

•InteractiveT ests➙Mouse

Powersystemcheckout

Toverifyasymptom,dothefollowing:

1.T urnoffthecomputer.

2.Removethebatterypack.

3.Connecttheacpoweradapter.

4.Checkthatpowerissuppliedwhenyouturnonthecomputer.

5.T urnoffthecomputer.

6.Disconnecttheacpoweradapterandinstallthechargedbatterypack.

7.Checkthatthebatterypacksuppliespowerwhenyouturnonthecomputer.

Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:

•“Checkingtheacpoweradapter”onpage34

•“Checkingoperationalcharging”onpage35

•“Checkingthebatterypack”onpage35

•“Checkingthebackupbattery”onpage36

Checkingtheacpoweradapter

Youareherebecausethecomputerfailsonlywhentheacpoweradapterisused.

•Ifthepowerproblemoccursonlywhenthedockingstationortheportreplicatorisused,replacethe
dockingstationortheportreplicator.

•Ifthepower-onindicatordoesnotturnon,checkthepowercordoftheacpoweradapterforcorrect
continuityandinstallation.

•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingoperationalcharging”onpage35.

Tochecktheacpoweradapter,dothefollowing:

1.Unplugtheacpoweradaptercablefromthecomputer.

2.Measuretheoutputvoltageattheplugoftheacpoweradaptercable.Seethefollowinggure:

34HardwareMaintenanceManual

Pin

1

2

3

(20V)

1+20

20

3

Voltage(Vdc)

Ground

Note:Outputvoltageofpinno.2oftheacpoweradaptermaydifferentfromtheoneyouareservicing.

3.Ifthevoltageisnotcorrect,replacetheacpoweradapter.

4.Ifthevoltageisacceptable,dothefollowing:

•Replacethesystemboard.

•Iftheproblempersists,goto“FRUtests”onpage33

.

Note:Noisefromtheacpoweradapterdoesnotalwaysindicateadefect.

Checkingoperationalcharging

Tocheckwhetherthebatterychargesproperlyduringoperation,useadischargedbatterypackorabattery
packthathaslessthan50%ofthetotalpowerremainingwheninstalledinthecomputer.

Performoperationalcharging.Ifthebatterystatusindicatororicondoesnotturnon,removethebattery
packandletitreturntoroomtemperature.Reinstallthebatterypack.Ifthechargeindicatororiconstilldoes
notturnon,replacethebatterypack.

Ifthechargeindicatorstilldoesnotturnon,replacethesystemboard.Thenreinstallthebatterypack.Ifitis
stillnotcharged,gotothenextsection.

Checkingthebatterypack

BatterychargingdoesnotstartuntilthePowerManagerBatteryGaugeshowsthatlessthan96%ofthe
totalpowerremains;underthisconditionthebatterypackcanchargeto100%ofitscapacity.Thisprotects
thebatterypackfrombeingoverchargedorfromhavingashortenedlife.

Tocheckyourbattery,moveyourcursortothePowerManagerBatteryGaugeiconintheicontrayofthe
Windowstaskbarandwaitforamoment(butdonotclick),andthepercentageofbatterypowerremaining
isdisplayed.Togetdetailedinformationaboutthebattery,double-clickthePowerManagerBattery
Gaugeicon.

Note:Ifthebatterypackbecomeshot,itmaynotbeabletocharge.Removeitfromthecomputerandleave
itatroomtemperatureforawhile.Afteritcoolsdown,reinstallandrechargeit.

Tocheckthebatterypack,dothefollowing:

1.Poweroffthecomputer.

2.Removethebatterypackandmeasurethevoltagebetweenbatteryterminals1(+)and7(-).Seethe
followinggure:

Chapter3.Generalcheckout35

Terminal

1(+)

2(+)

3

4

5

6(-)

7(-)

1+0to+12.6

7

Voltage(Vdc)

Ground(-)

3.Ifthevoltageislessthan+11.0Vdc,thebatterypackhasbeendischarged.

Note:Rechargingwilltakeatleast3hours,eveniftheindicatordoesnotturnon.

Ifthevoltageisstilllessthan+11.0Vdcafterrecharging,replacethebattery.

4.Ifthevoltageismorethan+11.0Vdc,measuretheresistancebetweenbatteryterminals5and7.
Theresistancemustbe4to30KΩ.

Iftheresistanceisnotcorrect,replacethebatterypack.Iftheresistanceiscorrect,replacethesystem
board.

Checkingthebackupbattery

Dothefollowing:

1.Poweroffthecomputer,andunplugtheacpoweradapterfromit.

2.T urnthecomputerupsidedown.

3.Removethebatterypack(see“1010Batterypack”onpage57).

4.Removethebackupbattery(see“1140Backupbattery”onpage80).

5.Measurethevoltageofthebackupbattery.Seethefollowinggure.

Wire

Red+2.5to+3.2

Black

Voltage(Vdc)

Ground

•Ifthevoltageiscorrect,replacethesystemboard.

•Ifthevoltageisnotcorrect,replacethebackupbattery.

•Ifthebackupbatterydischargesquicklyafterreplacement,replacethesystemboard.

36HardwareMaintenanceManual

Chapter4.Relatedserviceinformation

Thischapterpresentsfollowinginformation:

•“RestoringthefactorycontentsbyusingRecoveryDiscSet”onpage37

•“Passwords”onpage38

•“Powermanagement”onpage40

•“Symptom-to-FRUindex”onpage41

ServiceWebsite:

Whenthelatestmaintenancedisketteandthesystemprogramservicediskettebecomeavailable,they
willbepostedonhttp://www.lenovo.com/support.

RestoringthefactorycontentsbyusingRecoveryDiscSet

Whentheharddiskdriveorsolidstatedriveisreplacedbecauseofafailure,noproductrecoveryprogram
isonthenewharddisk.Inthiscase,youmustusetheRecoveryDiscSetforthecomputer.Orderthe
RecoveryDiscSetandtheharddiskdriveatthesametimesothatyoucanrecoverthenewharddiskdrive
withthepre-installedsoftwarewhentheyarrive.Forinformationonwhichdiscstoorder,see“Recovery
discs”onpage156

TherecoverydiscsetconsistsoftheuserinstructionsandthefollowingsetofDVDstorestorethecomputer
totheoriginalfactoryconguration.

OperatingSystemRecoveryDisc(onedisc)

ThisdiscrestorestheMicrosoft

ApplicationsandDriversRecoveryDisc(oneormorediscs)

Thisdiscrestoresthepreinstalledapplicationsanddriversonthecomputer.

SupplementalRecoveryDisc

Thisdisccontainsadditionalcontent,suchasupdatestothesoftwarethatwaspreinstalledonthecomputer.Not
allrecoverydiscsetscomewithaSupplementalRecoveryDisc.

.

®

Windowsoperatingsystem.Usethisdisctostarttherecoveryprocess.

Notes:

•YoumusthaveaDVDdrivetousetherecoverydiscs.IfyoudonothaveaninternalDVDdrive,you
canuseanexternalUSBDVDdrive.

•Duringtherecoveryprocess,alldataonthedrivewillbedeleted.Ifpossible,copyanyimportantdata
orpersonallesthatyouwanttokeepontoremovablemediaoranetworkdrivebeforeyoustartthe
recoveryprocess.

Torestorethecomputertotheoriginalfactorycongurationusingtherecoverydiscset,dothefollowing:

Note:Recoverytakesseveralhours.Thelengthoftimedependsonthemethodyouuse.Ifyouuserecovery
discs,recoverytakesatleastvehours.

1.MaketheCD/DVDdrivetherststartupdeviceinthestartupsequenceusingthefollowingprocedure:

a.PressandholddowntheF1key,andthenturnonthecomputer.Whenthelogoscreenisdisplayed

orifyouhearrepeatingbeeps,releasetheF1key.TheSetupUtilityprogramopens.

b.UsethearrowkeystoselectStartup➙Boot.

c.SelecttheCD/DVDdriveasthe1stBootDevice.

2.InserttheOperatingSystemRecoveryDiscintotheDVDdrive.

©CopyrightLenovo2011

37

3.PressF10tosavetheSetupUtilitycongurationchanges.Followtheinstructionsonthescreento
begintherecoveryprocess.

4.SelectyourlanguageandclickNext.

5.Readthelicense.Ifyouagreewiththetermsandconditions,selectIacceptthesetermsand
conditionsandthenclickNext.Ifyoudonotagreewiththetermsandconditions,followthe
instructionsonthescreen.

6.ClickY esinthedisplayedwindowtobegintheoperatingsystemrecoveryprocess.

7.InserttheApplicationsandDriversRecoveryDiscwhenpromptedandthenclickOKtobeginthe
applicationsanddriversrecoveryprocess.

8.IfyouhaveaSupplementalRecoveryDisc,insertitwhenpromptedandclickY es.Ifyoudonothavea
SupplementalRecoveryDisc,clickNo.

9.Whenallofthedatahasbeencopiedfromthelastdiscinthesetandhasbeenprocessed,removethe
discandrestartthecomputer.

Note:Therestoftherecoveryprocessisfullyautomatedandnoactionisrequiredbyyou.The
computerwillrestartintotheMicrosoftWindowsdesktopseveraltimesandyoumightexperience
periodswhennoactivityisapparentonthescreenforseveralminutesatatime.Thisisnormal.

10.Whentherecoveryprocessiscomplete,theSetUpWindowsscreenisdisplayed.Followthe
instructionsonthescreentocompletetheWindowssetup.

11.AfteryouhavecompletedtheWindowssetup,youmightwanttorestoretheoriginalstartupsequence.
StarttheSetupUtilityprogramandthenpressF9torestorethedefaultsettings.PressF10tosaveand
exittheSetupUtility.

Note:Afterrestoringaharddiskdrivetothefactorydefaultsettings,youmightneedtoreinstallsome
devicedrivers.

Passwords

AsmanyasthreepasswordsmaybeneededforanyThinkPadNotebook:thepower-onpassword(POP),
thehard-diskpassword(HDP),andthesupervisorpassword(SVP).

Ifanyofthesepasswordshasbeenset,apromptforitappearsonthescreenwheneverthecomputeris
turnedon.Thecomputerdoesnotstartuntilthepasswordisentered.

Note:IfonlyanSVPisinstalled,thepasswordpromptdoesnotappearwhentheoperatingsystemisbooted.

Power-onpassword

Apower-onpassword(POP)protectsthesystemfrombeingpoweredonbyanunauthorizedperson.The
passwordmustbeenteredbeforeanoperatingsystemcanbebooted.ForhowtoremovethePOP ,see
“Howtoremovethepower-onpassword”onpage39.

Hard-diskpassword

Therearetwohard-diskpasswords(HDPs):

•UserHDP—fortheuser

•MasterHDP—forthesystemadministrator,whocanuseittogetaccesstotheharddiskeveniftheuser
haschangedtheuserHDP

Note:TherearetwomodesfortheHDP:UseronlyandMaster+User.TheMaster+Usermoderequires
twoHDPs;thesystemadministratorentersbothinthesameoperation.Thesystemadministratorthen
providestheuserHDPtothesystemuser.

38HardwareMaintenanceManual

Attention:IftheuserHDPhasbeenforgotten,checkwhetheramasterHDPhasbeenset.Ifithas,itcanbe

usedforaccesstotheharddiskdrive.IfnomasterHDPisavailable,neitherLenovonorLenovoauthorized
servicetechniciansprovideanyservicestoreseteithertheuserorthemasterHDP ,ortorecoverdatafrom
theharddiskdrive.Theharddiskdrivecanbereplacedforascheduledfee.

ForhowtoremovethePOP ,see“Howtoremovethehard-diskpassword”onpage39.

Supervisorpassword

Asupervisorpassword(SVP)protectsthesysteminformationstoredintheBIOSSetupUtility.Theusermust
entertheSVPinordertogetaccesstotheBIOSSetupUtilityandchangethesystemconguration.

Attention:IftheSVPhasbeenforgottenandcannotbemadeavailabletotheservicetechnician,thereisno
serviceproceduretoresetthepassword.Thesystemboardmustbereplacedforascheduledfee.

Howtoremovethepower-onpassword

ToremoveaPOPthatyouhaveforgotten,dothefollowing:

(A)IfnoSVPhasbeenset:

1.T urnoffthecomputer.

2.Removethebatterypack.Forhowtoremovethebatterypack,see“1010Batterypack”onpage57.

3.Removethebackupbattery.Forhowtoremovethebackupbattery,see“1140Backupbattery”on
page80.

4.T urnonthecomputerandwaituntilthePOSTends.AfterthePOSTends,thepasswordpromptdoes
notappear.ThePOPhasbeenremoved.

5.Reinstallthebackupbatteryandthebatterypack.

(B)IfanSVPhasbeensetandisknownbytheservicetechnician:

1.T urnonthecomputer.

2.WhentheThinkPadlogocomesup,immediatelypressF1toenterBIOSSetupUtility.Formodels
supportingthePassphrasefunction,pressF1whilethePOPiconisappearingonthescreen;thenenter
thePOP .Fortheothermodels,enterthePOP .

Note:T ocheckwhethertheThinkPadNotebookyouareservicingsupportsthePassphrasefunction,
entertheBIOSSetupUtilityandgotoSecurity➙Password.IftheUsingPassphraseitemisdisplayed
inthemenu,thisfunctionisavailableontheThinkPadNotebook.

3.SelectSecurity,usingthecursordirectionalkeystomovedownthemenu.

4.SelectPassword.

5.SelectPower-OnPassword.

6.T ypethecurrentSVPintheEnterCurrentPasswordeld.thenleavetheEnterNewPasswordeld
blank,andpressEntertwice.

7.IntheChangeshavebeensavedwindow,pressEnter.

8.PressF10;then,intheSetupConrmationwindow,selectY es.

Howtoremovethehard-diskpassword

Attention:IfUseronlymodeisselectedandtheuserHDPhasbeenforgottenandcannotbemade

availabletotheservicetechnician,neitherLenovonorLenovoauthorizedservicetechniciansprovideany
servicestoresettheuserHDPsortorecoverdatafromtheharddiskdrive.Theharddiskdrivecanbe
replacedforascheduledfee.

Chapter4.Relatedserviceinformation39

ToremoveauserHDPthathasbeenforgotten,whentheSVPandthemasterHDPareknown,dothe
following:

1.T urnonthecomputer.

2.WhentheThinkPadlogocomesup,immediatelypressF1toenterBIOSSetupUtility.Formodels
supportingthePassphrasefunction,pressF1whileHDPiconisappearingonthescreen;thenenterthe
masterHDP .Fortheothermodels,enterthemasterHDP .

Note:T ocheckwhethertheThinkPadNotebookyouareservicingsupportsthePassphrasefunction,
entertheBIOSSetupUtilityandgotoSecurity➙Password.IfUsingPassphraseitemisdisplayed
inthemenu,thisfunctionisavailableontheThinkPadNotebook.

3.SelectSecurity,usingthecursordirectionalkeystomovedownthemenu.

4.SelectPassword.

5.SelectHard-diskxpassword,wherexistheletteroftheharddiskdrive.Apop-upwindowopens.

6.SelectMasterHDP.

7.T ypethecurrentmasterHDPintheEnterCurrentPasswordeld.thenleavetheEnterNewPassword
eldblank,andpressEntertwice.

8.PressF10.

9.SelectY esintheSetupConrmationwindow.BothuserHDPandmasterHDPwillhavebeenremoved.

Powermanagement

Toreducepowerconsumption,thecomputerhasthreepowermanagementmodes:screenblank,sleep
(standbyinWindowsXP),andhibernation.

Screenblankmode

Ifthetimesetonthe“T urnoffmonitor”timerintheoperatingsystemexpires,theLCDbacklightturnsoff.

Toputthecomputerintoscreenblankmode,doasfollows:

1.PressFn+F3.Apanelforselectingapowerplan(inWindowsXP ,powerscheme)appears.

2.SelectPoweroffdisplay(keepcurrentpowerplan)(inWindowsXP ,keepcurrentpowerscheme).

Toendscreenblankmodeandresumenormaloperation,pressanykey.

Sleep(standby)mode

Whenthecomputerenterssleep(standby)mode,thefollowingeventsoccurinadditiontowhatoccurs
inscreenblankmode:

•TheLCDispoweredoff.

•Theharddiskdriveispoweredoff.

•TheCPUstops.

Toentersleep(standby)mode,pressFn+F4.

Note:YoucanchangetheactionoftheFn+F4keycombinationbychangingthesettingsinPowerManager.

Incertaincircumstances,thecomputergoesintosleep(standby)modeautomatically:

•Ifa“suspendtime”hasbeensetonthetimer,andtheuserdoesnotdoanyoperationwiththekeyboard,
theT rackPoint,theharddisk,theparallelconnector,orthediskettedrivewithinthattime.

•Ifthebatteryindicatorblinksorange,indicatingthatthebatterypowerislow.

40HardwareMaintenanceManual

Note:Evenifyoudonotsetthelow-batteryalarm,thechargeindicatornotiesyouwhenthebatteryislow,

andthenthecomputerentersthepower-savingmodeautomatically.

Tocausethecomputertoreturnfromsleep(standby)modeandresumeoperation,dooneofthefollowing:

•PresstheFnkey.

•OpentheLCDcover.

•Turnonthepowerswitch.

Also,ineitherofthefollowingevents,thecomputerautomaticallyreturnsfromsleep(standby)modeand
resumesoperation:

•Theringindicator(RI)issignaledbyaserialdeviceoraPCCarddevice.

•Thetimesetontheresumetimerelapses.

Note:Thecomputerdoesnotacceptanyinputimmediatelyafteritenterssleep(standby)mode.Waita
fewsecondsbeforetakinganyactiontoreenteroperationmode.

Hibernationmode

Inhibernationmode,thefollowingoccurs:

•Thesystemstatus,RAM,VRAM,andsetupdataarestoredontheharddisk.

•Thesystemispoweredoff.

Note:Ifthecomputerentersthehibernationmodewhileitisdockedtothedockingstation,donotundockit
beforeresumingnormaloperation.Ifyoudoundockitandthentrytoresumenormaloperation,youwillget
anerrormessage,andyouwillhavetorestartthesystem.

Tocausethecomputertoenterhibernationmode,doanyofthefollowing:

•PresstheFn+F12keys.

•IfyouareusingtheAPMoperatingsystemandhavesetthemodetoPowerswitchmode[Hibernation],
turnoffthepowerswitch.

•IfyouareusingtheACPIoperatingsystemandhavedenedoneofthefollowingactionsastheeventthat
causesthesystemtogointohibernationmode,performthataction.
–Closingthelid.
–Pressingthepowerbutton.
–PressingFn+F4keys.

Also,thecomputergoesintohibernationmodeautomaticallyineitherofthefollowingconditions:

•Ifa“hibernationtime”hasbeensetonthetimer,andiftheuserdoesnotdoanyoperationwiththe
keyboard,theT rackPoint,theharddiskdrive,theparallelconnector,orthediskettedrivewithinthattime.

•Ifthetimerconditionsaresatisedinsuspendmode.

•IfyouareusingtheAPMoperatingsystemandhavesetthemodetoHibernatewhenbatterybecomes
low,andthebatterychargebecomescriticallylow.

Whenthepoweristurnedon,thecomputerreturnsfromhibernationmodeandresumesoperation.The
hibernationleinthebootrecordontheharddiskdriveisread,andsystemstatusisrestoredfromthe
harddiskdrive.

Symptom-to-FRUindex

Thissectioncontainsfollowinginformation:

•“Numericerrorcodes”onpage42

Chapter4.Relatedserviceinformation41

•“Errormessages”onpage44

•“No-beepsymptoms”onpage44

•“LCD-relatedsymptoms”onpage44

•“Intermittentproblems”onpage45

•“Undeterminedproblems”onpage45

Thesymptom-to-FRUindexinthissectionlistssymptomsanderrorsandtheirpossiblecauses.Themost
likelycauseislistedrst,inboldfacetype.

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

Thisindexcanalsohelpyoudetermine,duringregularservicing,whatFRUsarelikelytoneedtobe
replacednext.

AnumericerrorisdisplayedforeacherrordetectedinPOSTorsystemoperation.Inthedisplays,ncan
beanynumber.

Ifnonumericcodeisdisplayed,checkthenarrativedescriptionsofsymptoms.Ifthesymptomisnot
describedthere,goto“Intermittentproblems”onpage45

.

Note:ForadevicenotsupportedbydiagnosticcodesintheThinkPadNotebooks,seethemanualfor
thatdevice.

Numericerrorcodes

Table2.Numericerrorcodes

Symptomorerror(beeps,ifany)

0187

EAIAdataaccesserror—TheaccesstoEEPROMisfailed.
(twoshortbeeps)

0189

InvalidRFIDcongurationinformationarea—The
EEPROMchecksumisnotcorrect.
(twoshortbeeps)

0190

Criticallow-batteryerror
(twoshortbeeps)

0191

SystemSecurity—InvalidRemoteChangerequested.

0210

StuckKey
(twoshortbeeps)

0211

Keyboarderror
(twoshortbeeps)

0230

ShadowRAMerror—ShadowRAMfailsatoffsetnnnn.
(twoshortbeeps)

0231

SystemRAMerror—SystemRAMfailsatoffsetnnnn.
(twoshortbeeps)

FRUoraction,insequence

Systemboard.

Systemboard.

1.Chargethebatterypack.

2.Batterypack.

1.RunBIOSSetupUtility,andthensavecurrent

settingbypressingF10.

2.Systemboard.

Changekeyboard,andrestartthecomputer.

Runinteractivetestsofthekeyboardandtheauxiliary
inputdevice.

Systemboard.

1.DIMM.

2.Systemboard.

42HardwareMaintenanceManual

Table2.Numericerrorcodes(continued)

Symptomorerror(beeps,ifany)

0232

ExtendedRAMerror—ExtendedRAMfailsatoffsetnnnn.
(twoshortbeeps)

0250

Systembatteryerror—Systembatteryisdead.
(twoshortbeeps)

0251

SystemCMOSchecksumbad—Defaultconguration
used.
(twoshortbeeps)

0254

SystemNV7Volumechecksumbad-Defaultconguration
used
(twoshortbeeps)

0260

Systemtimererror.
(twoshortbeeps)

0270

Real-timeclockerror.
(twoshortbeeps)

0271

Dateandtimeerror—Neitherthedatenorthetimeisset
inthecomputer.
(twoshortbeeps)

0280

Previousbootincomplete—Defaultcongurationused.
(twoshortbeeps)

02D0

Systemcacheerror.
(twoshortbeeps)

02F0

CPUID:xxFailed.

1802

Unauthorizednetworkcardispluggedin—Turnoffand
removetheminiPCInetworkcard.
(twoshortbeeps)

FRUoraction,insequence

1.DIMM.

2.Systemboard.

1.Chargethebackupbatteryformorethan8hours

byconnectingtheacpoweradapter.

2.ReplacethebackupbatteryandrunBIOSSetup
Utilitytoresetthetimeanddate.

1.Chargethebackupbatteryformorethan8hours

byconnectingtheacpoweradapter.

2.ReplacethebackupbatteryandrunBIOSSetup
Utilitytoresetthetimeanddate.

TurnoffthecomputeranddischargeCMOS.Then
restartthecomputer.

1.Chargethebackupbatteryformorethan8hours
byconnectingtheacpoweradapter.

2.ReplacethebackupbatteryandrunBIOSSetup
Utilitytoresetthetimeanddate.

3.Systemboard.

1.Chargethebackupbatteryformorethan8hours

byconnectingtheacpoweradapter.

2.ReplacethebackupbatteryandrunBIOSSetup
Utilitytoresetthetimeanddate.

3.Systemboard.

RunBIOSSetupUtilitytoresetthetimeanddate.

1.Load“SetupDefault”inBIOSSetupUtility.

2.DIMM.

3.Systemboard.

1.CPU.

2.Systemboard.

1.CPU.

2.Systemboard.

1.RemoveMiniPCInetworkcard.

2.Systemboard.

Chapter4.Relatedserviceinformation43

Errormessages

Table3.Errormessages

Symptomorerror(beeps,ifany)

BadCRC2.EnterBIOSSetupUtility,andloadSetup
defaults.
(twoshortbeeps)

Fanerror.
(fourshortbeeps,onelongbeep)

DRAMisunplugged.
(fourshortbeeps,pause,threeshortbeeps,pause,one
shortbeep,pause,oneshortbeep)

DRAMisnotwellplugged.
(sevenshortbeeps,onelongbeep,fourshortbeeps,one
longbeep,oneshortbeep,onelongbeep,oneshort
beep,onelongbeeptillforever.)

Operatingsystemnotfound.1.Checkthattheoperatingsystemhasnofailure

Unauthorizednetworkcardispluggedin-Poweroffand
removetheminiPCInetworkcard.
(twoshortbeeps)

SystemCongurationDataReadError
(twoshortbeeps)

FRUoraction,insequence

PressF1toenterBIOSSetupUtility.PressF9,and
Entertoloadthedefaultsetting.Thensavethecurrent
settingbypressingF10,andrestartthecomputer.

1.Fan.

2.Thermalgrease.

3.Systemboard.

InstalltheDRAM.

ReinstalltheDRAM.

andisinstalledcorrectly.

2.EnterBIOSSetupUtilityandseewhetherthehard
diskdriveisproperlyidentied.Ifyoustillseethe
sameerrormessage,checkthebootsequence.

3.Reinstalltheharddiskdrive.

4.Reinstalltheoperatingsystem.

TurnoffthecomputerandremovetheWANcard.

PressF1toenterBIOSSetupUtility.PressF9,and
Entertoloadthedefaultsetting.Thensavethecurrent
settingbypressingF10,andrestartthecomputer.

No-beepsymptoms

Table4.No-beepsymptoms

Symptomorerror

Nobeep,power-onindicatoron,LCDblank,andno
POST.

Nobeep,power-onindicatoron,andLCDblankduring
POST.

Thepower-onpasswordpromptappears.Apower-onpasswordorasupervisorpasswordisset.

Thehard-diskpasswordpromptappears.Ahard-diskpasswordisset.T ypethepasswordand

FRUoraction,insequence

1.Makesurethateveryconnectorisconnected
tightlyandcorrectly.

2.DIMM.

3.Systemboard.

1.ReseatDIMM.

2.Systemboard.

TypethepasswordandpressEnter.

pressEnter.

LCD-relatedsymptoms

Important:TheTFTLCDforthenotebookcomputercontainsmanythin-lmtransistors(TFT s).The

presenceofasmallnumberofdotsthataremissing,discolored,oralwayslightedischaracteristicofTFT
LCDtechnology,butexcessivepixelproblemscancauseviewingconcerns.

44HardwareMaintenanceManual

IftheLCDyouareservicinghastwoorlessvisibledefectivepixels,itshouldnotbeconsideredfaulty.
However,iftheLCDhasthreeormorevisibledefectivepixels,itwillbedeemedasdefectivebyLenovoand
itshouldbereplaced.

Notes:

•ThispolicyappliestoallThinkPadNotebookspurchasedon1January,2008orlater.

•LenovowillnotprovidereplacementiftheLCDiswithinspecicationaswecannotguaranteethatany
replacementLCDwillhavezeropixeldefects.

•OnepixelconsistsofR,G,Bsub-pixels.

Table5.L CD-relatedsymptoms

Symptomorerror

Nobeep,power-onindicatoron,andablankLCDduring
POST.

•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:

1.Runthediagnostictestforthesystemboardinloopmodeatleast10times.

2.Ifnoerrorisdetected,donotreplaceanyFRUs.

3.Ifanyerrorisdetected,replacetheFRUshownbytheFRUcode.Rerunthetesttoverifythatno
moreerrorsexist.

Undeterminedproblems

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

Verifythatallattacheddevicesaresupportedbythecomputer.

Verifythatthepowersupplybeingusedatthetimeofthefailureisoperatingcorrectly.(See“Powersystem
checkout”onpage34

1.T urnoffthecomputer.

2.VisuallycheckeachFRUfordamage.ReplaceanydamagedFRU.

3.Removeordisconnectallofthefollowingdevices:
a.Non- ThinkPaddevices
b.Devicesattachedtothedockingstationortheportreplicator
c.Printer,mouse,andotherexternaldevices

.)

Chapter4.Relatedserviceinformation45

d.Batterypack
e.Harddiskdrive
f.Externaldiskettedriveoropticaldrive
g.DIMM
h.Opticaldiskordisketteintheinternaldrive
i.PCCards

4.T urnonthecomputer.

5.Determinewhethertheproblemhasbeensolved.

6.Iftheproblemdoesnotrecur,reconnecttheremoveddevicesoneatatimeuntilyoundthefailingFRU.

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

46HardwareMaintenanceManual

Chapter5.Statusindicators

2

1

3

4

5

6

7

8

Thischapterpresentsthesystemstatusindicatorsthatshowthestatusofthecomputer.

Table6.Statusindicators

IndicatorMeaning

1

2

3

Numericlock

Poweron

Wireless
LAN/WAN/WiMAX
status

4

Bluetoothwireless
status

Bydefault,whenthenumericlockison,theindicatorisdisplayedonthescreen.

•Green:Thecomputerisonandreadytouse.Thepowerswitchstayslitwhenever
thecomputerisonandisnotlitwhenthecomputerisinsleep(standby)mode.

•Green:Thewirelessfeature(802.11standardor802.11n)ison,andtheradiolinkis
readyforuse.

•Blinkinggreen:Dataisbeingtransmitted.

•Green:Bluetoothwirelessison,andtheradiolinkisreadyforuse.

•Blinkinggreen:Dataisbeingtransmitted.

©CopyrightLenovo2011

47

Table6.Statusindicators(continued)

IndicatorMeaning

5

6

Deviceaccess

CapslockCapsLockmodeisenabled.

Dataisbeingreadfromorwrittentotheharddiskdrive.Whenthisindicatorison,do
notputthecomputerintosleep(standby)modeorturnoffthecomputer.

Note:Donotmovethecomputerwhilethisindicatorison.Suddenphysicalshock
couldcausedriveerrors.

7

Sleep(Standby)
status

•Green:Thecomputerisinsleep(standby)mode.

•Blinkinggreen:Thecomputerisenteringsleep(standby)modeorhibernation
mode,orisresumingnormaloperation.

8

Batterystatus

•Green:Thebatteryischargedbetween80%to100%ofthecapacity,andbeing
dischargedbetween0%to80%ofthecapacity.

•Blinkinggreen:Thebatteryischargedbetween20%to80%ofthecapacity,and
beingcharged.Whenthebatteryreaches80%charge,blinkingstops,butthe
chargingmightcontinueuntilthebatteryis100%charged.

•Orange:Thebatteryischargedbetween5%and20%ofthecapacity,andbeing
discharged.

•Blinkingorange(slow):Thebatteryischargedbetween5%to20%ofthecapacity,
andbeingcharged.Whenitreaches20%,theblinkingcolorchangestogreen.

•Blinkingorange:Thebatteryischargedbetween0%to5%ofthecapacity.

•Blinkingorange(rapid):Anerrorhasoccurredinthebattery.

•Off:Thebatteryisfullychargedorthebatteryisdetached.

48HardwareMaintenanceManual

Chapter6.Fnkeycombinations

ThefollowingtableshowsthefunctionofeachcombinationofFnwithafunctionkey.

Table7.Fnkeycombinations

KeycombinationDescription

Fn+F1Reserved.

Fn+F2Lockthecomputer.

Fn+F3

Fn+F4

Fn+F5

Selectapowerplan(inWindowsXP ,powerscheme)thathasbeencreatedbyPowerManager ,
oradjustthepowerlevelbyusingtheslidercontrol.Whenyoupressthiscombination,a
panelforselectingapowerplan(powerscheme)appears.

Notes:

1.TousetheFn+F3keycombination,youmusthavetheThinkPadPMdevicedriver
installedonthecomputer.

2.IfyouhaveloggedonwithanadministratoruserIDinWindowsXP ,andyoupressFn+F3,
thewindowforselectingapowerschemeappears.Ifyouhaveloggedonwithanother
userIDinWindowsXP ,andyoupressFn+F3,thewindowdoesnotappear.

3.YoucannotturnoffthecomputerdisplaybypressingFn+F3.

Putthecomputerinsleep(standby)mode.T oreturntonormaloperation,presstheFnkey
only,withoutpressingafunctionkey .

Notes:

1.TousetheFn+F4keycombination,youmusthavetheThinkPadPMdevicedriver
installedonthecomputer.

2.Ifyouwanttousethecombinationtoputthecomputerintohibernationmodeor
do-nothingmode(inWindowsXP ,shutthecomputerdownorshowthepanelforturning
offthecomputer),changethesettingsinthePowerManager.

Enableordisablethebuilt-inwirelessnetworkingfeaturesandtheBluetoothfeatures.Ifyou
pressFn+F5,alistofwirelessfeaturesisdisplayed.Y oucanquicklychangethepowerstate
ofeachfeatureinthelist.

Fn+F6

©CopyrightLenovo2011

Notes:IfyouwanttouseFn+F5toenablethefeaturespeciedinIEEEstandard802.11,the
followingdevicedriversmustbeinstalledonthecomputerbeforehand:

•ThinkPadPowerManagementdriver

•OnScreenDisplayUtility

•Wirelessdevicedrivers

Changethecamerasettingsandthesettingofthemicrophonemutebutton.Whenyoupress
Fn+F6,thecamerasettingwindowisopened.

Note:ForWindowsXPmodels,thesettingofthemicrophonemutebuttoncannotbechanged.

49

Table7.Fnkeycombinations(continued)

KeycombinationDescription

Fn+F7

Applyapresentationschemedirectly,withnoneedtostartPresentationDirector.

TodisablethisfunctionandusetheFn+F7keycombinationforswitchingadisplayoutput
location,startPresentationDirector,andchangethesettings.

Note:IfthecomputerisaWindows7model,itdoesnotsupportpresentationschemes,but
theFn+F7combinationisavailableforswitchingadisplayoutputlocation.

ForWindows7:

Switchbetweenthecomputerdisplayandanexternalmonitor.Windowswillshowthese
displayoptions:

•Computerdisplayonly(LCD)

•Computerdisplayandexternalmonitor(sameimage)

•Computerdisplayandexternalmonitor(extendeddesktop)

•Externalmonitoronly
Note:Toswitchbetweenthecomputerdisplayandanexternalmonitor,theWin+Pkey
combinationisalsoavailable.

ForWindowsVistaandWindowsXP:

Switchbetweenthecomputerdisplayandanexternalmonitor.Ifanexternalmonitoris
attached,computeroutputisdisplayedinthefollowingthreepatternsbyturns:

•Externalmonitor(CRTdisplay)

•Computerdisplayandexternalmonitor(LCD+CRTdisplay

•Computerdisplay(LCD)

Notes:

1.Thisfunctionisnotsupportedifdifferentdesktopimagesaredisplayedonthecomputer
displayandtheexternalmonitor(theExtenddesktopfunction).

2.ThisfunctiondoesnotworkwhileaDVDmovieoravideoclipisplaying.

Toenablethisfunction,startPresentationDirector,andchangetheFn+F7settings.

Note:MultipleuserscanlogontoasingleoperatingsystembyusingdifferentuserIDs.Each
userneedstochangethesettings.

Fn+F8

ChangethesettingsoftheUltraNav

®

pointingdevice.

Fn+F9Reserved.

Fn+F10Reserved.

Fn+F11Reserved.

Fn+F12Putthecomputerintohibernationmode.T oreturntonormaloperation,pressthepower

buttonforlessthanfourseconds.

Note:TouseFn+F12forhibernation,youmusthavetheThinkPadPMdevicedriverinstalled
onthecomputer.

Fn+PgUp

TurntheThinkLight

®

onoroff.

Note:ThisfunctionissupportedonlyontheThinkPadNotebooksthathavetheThinkLight.
TheonoroffstatusoftheThinkLightisshownonthescreenforafewsecondswhenyou
pressFn+PgUp.

Fn+HomeThecomputerdisplaybecomesbrighter.

Fn+EndThecomputerdisplaybecomesdimmer.

Fn+SpacebarEnabletheFullScreenMagnierfunction.

Fn+PrtScHavethesamefunctionastheSysRqkey.

50HardwareMaintenanceManual

Table7.Fnkeycombinations(continued)

KeycombinationDescription

Fn+ScrLk

Fn+Pause

Fn+cursorkeys

Enableordisablethenumerickeypad.Theindicatorofnumericlockwillbedisplayedon
thescreen.

HavethesamefunctionastheBreakkey.

ThesekeycombinationsareforusewithWindowsMediaPlayer.Theyhavethefollowing
functions:

•Fn+downarrowkey:PlayorPause

•Fn+uparrowkey:Stop

•Fn+rightarrowkey:NextTrack

•Fn+leftarrowkey:PreviousT rack

Chapter6.Fnkeycombinations51

52HardwareMaintenanceManual

Chapter7.FRUreplacementnotices

Thischapterpresentsnoticesrelatedtoremovingandreplacingparts.Readthischaptercarefullybefore
replacinganyFRU.

Screwnotices

Loosescrewscancauseareliabilityproblem.IntheThinkPadNotebook,thisproblemisaddressedwith
specialnylon-coatedscrewsthathavethefollowingcharacteristics:

•Theymaintaintightconnections.

•Theydonoteasilycomeloose,evenwithshockorvibration.

•Theyarehardertotighten.

•Eachoneshouldbeusedonlyonce.

Dothefollowingwhenyouservicethismachine:

•Keepthescrewkit(fortheP/N,see“Miscellaneousparts”onpage153)inyourtoolbag.

•Alwaysusenewscrews.

•Useatorquescrewdriverifyouhaveone.

Tightenscrewsasfollows:

•Plastictoplastic

Turnanadditional90degreesafterthescrewheadtouchesthesurfaceoftheplasticpart:

•Logiccardtoplastic

Turnanadditional180degreesafterthescrewheadtouchesthesurfaceofthelogiccard:

•Torquedriver

Ifyouhaveatorquedriver,refertothe“Torque”columnforeachstep.

•Makesurethatyouusethecorrectscrew.Ifyouhaveatorquescrewdriver,tightenallscrewsrmlytothe
torqueshowninthetable.Neveruseascrewthatyouremoved.Useanewone.Makesurethatall

ofthescrewsaretightenedrmly.

•Ensuretorquescrewdriversarecalibratedcorrectlyfollowingcountryspecications.

©CopyrightLenovo2011

53

Retainingserialnumbers

Thissectionincludesthefollowingdescriptions:

•“Restoringtheserialnumberofthesystemunit”onpage54

•“RetainingtheUUID”onpage54

•“ReadingorwritingtheECAinformation”onpage55

Restoringtheserialnumberofthesystemunit

Whenthecomputerwasmanufactured,theEEPROMonthesystemboardwasloadedwiththeserial
numbersofthesystemandallmajorcomponents.Thesenumbersneedtoremainthesamethroughout
thelifeofthecomputer.

Ifyoureplacethesystemboard,youmustrestoretheserialnumberofthesystemunittoitsoriginalvalue.

Beforereplacingthesystemboard,savetheoriginalserialnumberbydoingthefollowing:

1.InstalltheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater,andrestartthe
computer.

2.Fromthemainmenu,select1.SetSystemIdentication.

3.Select2.ReadS/NdatafromEEPROM.

Theserialnumberofeachdeviceinyourcomputerisdisplayed;theserialnumberofthesystemunitis
listedasfollows:

•20:Serialnumber

Writedownthatnumber.

Note:Theserialnumberofthesystemunitisalsowrittenonthelabelattachedtothebottomofthecomputer.

Afteryouhavereplacedthesystemboard,restoretheserialnumberbydoingthefollowing:

1.InstalltheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlaterandrestartthe
computer.

2.Fromthemainmenu,select1.SetSystemIdentication.

3.Select1.AddS/NdatafromEEPROM.Followtheinstructionsonthescreen.

IftheMTMandProductIDnumbersdifferfromeachotherontherearlabel,usewhatisshownforthe
ProductIDeld.Seeexamplebelow:

MTMonrearlabel:

TTTT-CTOS/NSSSSSSS

ProductIDonrearlabel:

TTTT-MMM(UsethisnumberwhensettingSerialNumber)

Intheexample,theSerialNumbertobeinputis'1STTTTMMMSSSSSSS'.

RetainingtheUUID

TheUniversallyUniqueIdentier(UUID)isa128-bitnumberuniquelyassignedtoyourcomputerat
productionandstoredintheEEPROMofyoursystemboard.

54HardwareMaintenanceManual

ThealgorithmthatgeneratesthenumberisdesignedtoprovideuniqueIDsuntiltheyearA.D.3400.Notwo
computersintheworldhavethesamenumber.

Whenyoureplacethesystemboard,youmustsettheUUIDonthenewsystemboardasfollows:

1.InstalltheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater,andrestartthe
computer.

2.Fromthemainmenu,select4.AssignUUID.AnewUUIDiscreatedandwritten.IfavalidUUIDalready
exists,itisnotoverwritten.

ReadingorwritingtheECAinformation

InformationonEngineeringChangeAnnouncements(ECA)arestoredintheEEPROMofthesystemboard.
TheelectronicstorageofthisinformationsimpliestheproceduretocheckiftheECAhasbeenpreviously
appliedtoamachine.ThemachinedoesnotneedtobedisassembledtocheckfortheECAapplication.

TocheckwhatECAshavebeenpreviouslyappliedtothemachine,usetheECAInformationRead/Write
functionontheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater.

1.InserttheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater,andrestartthe
computer.

2.Fromthemainmenu,select6.SetECAInformation.

3.T oreadECAinformation,select2.ReadECA/reworknumberfromEEPROMandfollowthe
instruction.

4.T oreadboxbuilddate,select5.ReadboxbuilddatefromEEPROM,andfollowtheinstructionon
thescreen.

AfteranECAhasbeenappliedtothemachine,theEEPROMmustbeupdatedtoreecttheECA's
application.UsetheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlatertoupdatethe
EEPROM.

Note:OnlytheECAnumberisstoredintheEEPROM.ThemachinetypeoftheECAisassumedbethesame
asthemachinetypeofthemachinethathadtheECAappliedtoit.

1.InserttheLENOVOThinkPadHardwareMaintenanceDisketteVersion1.76orlater,andrestartthe
computer.

2.Fromthemainmenu,select6.SetECAInformation.

3.T owriteECAinformation,select1.WriteECA/reworknumberfromEEPROM,andfollowthe
instruction.

4.T owriteboxbuilddate,select4.WriteboxbuilddatefromEEPROM,andfollowtheinstructionon
thescreen.

Ifthesystemboardisbeingreplaced,trytoreadtheECAinformationfromtheoldsystemboardandtransfer
theinformationtothenewsystem.Ifthesystemboardisinoperable,thiswillnotbepossible.

Chapter7.FRUreplacementnotices55

56HardwareMaintenanceManual

Chapter8.RemovingandreplacingaFRU

ThischapterpresentsdirectionsanddrawingsforuseinremovingandreplacingaFRU.Besuretoobserve
thefollowinggeneralrules:

1.Donottrytoserviceanycomputerunlessyouhavebeentrainedandcertied.Anuntrainedpersonruns
theriskofdamagingparts.

2.BeforereplacinganyFRU,reviewChapter7“FRUreplacementnotices”onpage53.

3.BeginbyremovinganyFRUsthathavetoberemovedbeforereplacingthefailingFRU.SuchFRUsare
listedineachFRUreplacementsection.Removethemintheorderinwhichtheyarelisted.

4.FollowthecorrectsequenceinthestepsforremovingaFRU,asgiveninthedrawingsbythenumbers
insquarecallouts.

5.WhenturningascrewtoreplaceaFRU,turnitinthedirectionasgivenbythearrowinthedrawing.

6.WhenremovingaFRU,moveitinthedirectionasgivenbythearrowinthedrawing.

7.T oputthenewFRUinplace,reversetheremovalprocedureandfollowanynotesthatpertainto
replacement.Forinformationaboutconnectingandarranginginternalcables,seeChapter9“Locations”
onpage113

8.WhenreplacingaFRU,usethecorrectscrew(s)asshownintheprocedures.

DANGER

BeforeremovinganyFRU,turnoffthecomputer ,unplugallpowercordsfromelectricaloutlets,
removethebatterypack,andthendisconnectanyinterconnectingcables.

.

Attention:AfterreplacingaFRU,donotturnonthecomputeruntilyouhavemadesurethatallscrews,
springs,andothersmallpartsareinplaceandnonearelooseinsidethecomputer.Verifythisbyshaking
thecomputergentlyandlisteningforrattlingsounds.Metallicpartsormetalakescancauseelectrical
shortcircuits.

Attention:Thesystemboardissensitiveto,andcanbedamagedby,electrostaticdischarge.Before
touchingit,establishpersonalgroundingbytouchingagroundpointwithonehandorbyusingan
electrostaticdischarge(ESD)strap(P/N6405959).

1010Batterypack

Importantnoticeforreplacingabatterypack:

•LenovoThinkVantageT oolboxhasanautomaticbatterydiagnosticthatdeterminesifthebatterypackisdefective.
AbatterypackFRUshouldnotbereplacedunlessthisdiagnosticshowsthatthebatteryisdefective.

•Theonlyexceptiontothisisifthebatterypackisphysicallydamagedoracustomerisreportingapossible
safetyissue.

•IfLenovoThinkVantageT oolboxisnotinstalledinthecomputer ,thecustomershoulddownloadthisprogram
beforeanon-physicallydamagedbatterypackisreplaced.Notethataphysicallydamagedbatterypackisa
non-warrantyreplacementpart.

©CopyrightLenovo2011

57

Table8.Removalstepsofbatterypack

3

21

DANGER

Useonlythebatteryspeciedinthepartslistforyourcomputer.Anyotherbatterycouldigniteorexplode.

Unlockthebatterylatch1.Holdingthebatterylockleverintheunlockedposition2,removethebatterypackin
thedirectionshownbyarrow3.

Wheninstalling:Installthebatterypackalongthesliderailsoftheslot.Makesurethatthebatteryreleaselever
isinthelockedposition.

1020ExpressCardblankbezelandMediaCardblankbezel

Table9.RemovalstepsofExpressCardblankbezel

WhenyoupresstheExpressCardblankbezel1,itpopsout2.

58HardwareMaintenanceManual

Table9.RemovalstepsofExpressCardblankbezel(continued)

1

2

Wheninstalling:Makesurethatthebezeliscorrectlyorientedasshowninthefollowinggure.

Table10.RemovalstepsofMediaCardblankbezel

WhenyoupresstheMediaCardblankbezel1,itpopsout2.

Chapter8.RemovingandreplacingaFRU59

Table10.RemovalstepsofMediaCardblankbezel(continued)

1

2

Wheninstalling:Makesurethatthebezeliscorrectlyorientedasshowninthefollowinggure.

1030Opticaldriveortravelcover

Foraccess,removethisFRU:

•“1010Batterypack”onpage57

60HardwareMaintenanceManual

Table11.Removalstepsofopticaldriveortravelcover

1

3

2

StepScrew(quantity)Color

1

M2×8mm,at-head,nylon-coated(1)

Torque

Black0.181Nm

(1.85kgfcm)

1040Thermalcover

Foraccess,removethisFRU:

•“1010Batterypack”onpage57

Chapter8.RemovingandreplacingaFRU61

Table12.Removalstepsofthermalcover

1

1

1

1

1

1

2

Note:Loosenthescrews1,butdonotremovethem.

Attention:Donottouchorapplyanyexcessiveforcetothefanmotorlocatedintheslot.Itmightcausedamageto

thefanassemblyormightcausethecomputertomalfunction.

1050Harddiskdriveorsolidstatedriveassembly

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1040Thermalcover”onpage61

Attention:

•Donotdropthedriveorapplyanyphysicalshocktoit.Thedriveissensitivetophysicalshock.Improper
handlingcancausedamageandpermanentlossofdata.

•Beforeremovingthedrive,havetheusermakeabackupcopyofalltheinformationonitifpossible.

•Neverremovethedrivewhilethecomputerisoperatingorisinsuspendmode.

62HardwareMaintenanceManual

Table13.RemovalstepsofHDDorSSDassembly

1

Wheninstalling:MakesurethattheHDDorSSDconnectorisattachedrmly.

Chapter8.RemovingandreplacingaFRU63

Table13.RemovalstepsofHDDorSSDassembly(continued)

b

1

1

1

1

Wheninstalling:

•DonotapplyexcessiveforcetotheHDDorSSDbracketa.T odoso,youmightbendorbreakit.

•BeforeinstallinganHDDorSSDassemblyintomodelswithanmSATAsolidstatedrive,besuretoremovethe
mylartapebasshowninthefollowingillustration.

Table14.RemovalstepsofHDDorSSDbracket

64HardwareMaintenanceManual

Table14.RemovalstepsofHDDorSSDbracket(continued)

2

2

1

1

StepScrew(quantity)Color

1

M3×3.5mm,at-head(4)Silver

1060DIMM

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1040Thermalcover”onpage61

Table15.RemovalstepsofDIMM

Torque

0.392Nm
(4kgfcm)

Chapter8.RemovingandreplacingaFRU65

Table15.RemovalstepsofDIMM(continued)

b

a

1

Note:IfonlyoneDIMMisusedonthecomputeryouareservicing,thecardmustbeinstalledinSLOT-0(
slot),butnotinSLOT-1(

Wheninstalling:InsertthenotchedendoftheDIMMintothesocket.PresstheDIMMrmly,andpivotituntilit
snapsintoplace.Makesurethatitisrmlyxedintheslotanddoesnotmoveeasily.

b:upperslot).

a:lower

1070Fanassembly

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1040Thermalcover”onpage61

Attention:

•Donothandlethefanroughly.Improperhandlingofthefancancausedistortionordeformationand
imperfectcontactwithcomponents.

•Donottouchorapplyanyexcessiveforcetothefanmotor.Itmightcausedamagetothefanassemblyor
mightcausethecomputertomalfunction.

Table16.Removalstepsoffanassembly

Wheninstalling:Makesurethatthefanconnectorisattachedrmlytothesystemboard.

66HardwareMaintenanceManual

Table16.Removalstepsoffanassembly(continued)

2c

2b

2d

2a

3

Note:Loosenthescrews2ato2dinorder,butdonotremovethem.Whenyouattachthefan,securethescrewsin
order.

Note:Differentmodelsmighthavedifferentnumbersofscrewsinstep2.

Wheninstalling:Beforeyouattachthefanassemblytothecomputer,applythermalgrease,atanamountof0.2

grams,onthepartsmarkedaasinthefollowinggures.Eithertoomuchortoolessapplicationofgreasecan
causeathermalproblemduetoimperfectcontactwithacomponent.ForthenewCPUthermaldevice,youneed
topeelthethinlmofffromtherubbersmarked

b.

Chapter8.RemovingandreplacingaFRU67

Table16.Removalstepsoffanassembly(continued)

b

a

b

Formodelswithadiscretefanassembly:

Formodelswithanintegratedfanassembly:

1080CPU

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1040Thermalcover”onpage61

•“1070Fanassembly”onpage66

Attention:TheCPUisextremelysensitive.WhenyouservicetheCPU,avoidanykindofroughhandling.

Table17.RemovalstepsofCPU

Rotatetheheadofthescrewinthedirectionshownbyarrow1toreleasethelock;thenremovetheCPU2.

68HardwareMaintenanceManual

Table17.RemovalstepsofCPU(continued)

2

a

1

Wheninstalling:PlacetheCPUabovetheCPUsocket,andthenrotatetheheadofthescrewinthedirectionshown
byarrowatosecuretheCPU.

1090SIMslotcover

Foraccess,removethisFRU:

•“1010Batterypack”onpage57

Table18.RemovalstepsofSIMslotcover

Note:Loosenthescrew1,butdonotremoveit.

Chapter8.RemovingandreplacingaFRU69

Table18.RemovalstepsofSIMslotcover(continued)

1

2

3

SomemodelsyouareservicingmighthavetheSIMcardthatthecustomerhasinstalled.

IfthecomputeryouareservicinghastheSIMcard,removeitbeforeyoustarttheservicing.

Afteryounishtheservicing,makesurethatyouinsertthecardbackintotheslotrmly.

70HardwareMaintenanceManual

Table18.RemovalstepsofSIMslotcover(continued)

4

5

1

1110WirelessWANslotcoverandPCIExpressMiniCardforwireless WAN

Foraccess,removethisFRU:

•“1010Batterypack”onpage57

Table19.RemovalstepsofwirelessWANslotcoverandPCIExpressMiniCardforwirelessWAN

Note:Loosenthescrew1,butdonotremoveit.

Chapter8.RemovingandreplacingaFRU71

Table19.RemovalstepsofwirelessWANslotcoverandPCIExpressMiniCardforwirelessWAN(continued)

2

4

4

3a

3b

5

Insteps3aand3b,unplugthejacksbyusingtheremovaltoolantennaRFconnector(P/N:08K7159)orpickthe
connectorswithyourngersandgentlyunplugtheminthedirectionofthearrows.

Wheninstalling:PlugtheredcableintothejacklabeledMAIN,andthebluecableintothejacklabeledAUX
onthecard.

StepScrew(quantity)Color

4

M2×3mm,at-head,nylon-coated(2)

Black0.181Nm

Torque

(1.85kgfcm)

72HardwareMaintenanceManual

1110mSAT Asolidstatedrive

1

2

Foraccess,removethisFRU:

•“1010Batterypack”onpage57

Attention:

•Donotdropthedriveorapplyanyphysicalshocktoit.Thedriveissensitivetophysicalshock.Improper
handlingcancausedamageandpermanentlossofdata.

•Beforeremovingthedrive,havetheusermakeabackupcopyofalltheinformationonitifpossible.

•Neverremovethedrivewhilethecomputerisoperatingorisinsuspendmode.

Note:Loosenthescrew1,butdonotremoveit.

Chapter8.RemovingandreplacingaFRU73

4

3

StepScrew(quantity)Color

3

M2×3mm,at-head,nylon-coated(1)

1120Palmrestassemblywithcables

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1030Opticaldriveortravelcover”onpage60

Torque

Black0.181Nm

(1.85kgfcm)

74HardwareMaintenanceManual

Table20.Removalstepsofpalmrestassemblywithcables

2

2

2

2

2

1

1

2

2

Wheninstalling:Makesureallthescrewshavebeenfastenedtosecurethepalmrest.

StepScrew(quantity)Color

1

M2×8mm,at-head,nylon-coated(1)

Black0.181Nm

Torque

(1.85kgfcm)

2

M2×5mm,at-head,nylon-coated(6)

Black0.181Nm

(1.85kgfcm)

Chapter8.RemovingandreplacingaFRU75

Table20.Removalstepsofpalmrestassemblywithcables(continued)

3

3

4

76HardwareMaintenanceManual

Table20.Removalstepsofpalmrestassemblywithcables(continued)

a

a

Wheninstalling:Attachthepalmrestsothatthetwosmallprojectionsofthepalmrestarmlytintotheguide
holesofthekeyboardbezel,andthempressthefrontsideofthepalmrestdownwarduntilitclicksintoplace.
Refertothefollowingtwogures.

Chapter8.RemovingandreplacingaFRU77

Table20.Removalstepsofpalmrestassemblywithcables(continued)

5

6

7

6

8

7

Note:Inmodelswiththengerprintreader,thesensorisattachedtothepalmrestFRU.Ifthengerprintreaderis
defective,youcanremovethengerprintreaderbyreferringtostep8asshowninthefollowinggure.

Wheninstalling:Makesurethatallthecablesareattachedrmlytothesystemboard.

1130PCIExpressMiniCardforwirelessLAN

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1030Opticaldriveortravelcover”onpage60

•“1120Palmrestassemblywithcables”onpage74

Table21.RemovalstepsofPCIExpressMiniCardforwirelessLAN

Instep1aand1b,unplugthejacksbyusingtheremovaltoolantennaRFconnector(P/N:08K7159)orpickthe
connectorswithyourngersandgentlyunplugtheminthedirectionofthearrows.

78HardwareMaintenanceManual

Table21.RemovalstepsofPCIExpressMiniCardforwirelessLAN(continued)

1a

1b

2

2

3

StepScrew(quantity)Color

2

M2×3mm,at-head,nylon-coated(2)

Black0.181Nm

Torque

(1.85kgfcm)

Wheninstalling:PlugthegraycableintothejacklabeledMAIN,andtheblackcableintothejacklabeledAUX
onthecard.

Chapter8.RemovingandreplacingaFRU79

1140Backupbattery

2

1

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1030Opticaldriveortravelcover”onpage60

•“1120Palmrestassemblywithcables”onpage74

DANGER

Useonlythebatteryspeciedinthepartslistforyourcomputer.Anyotherbatterycouldignite
orexplode.

Table22.Removalstepsofbackupbattery

Wheninstalling:Makesurethatthebatteryconnectorisattachedrmlytothesystemboard.

1150Bluetoothdaughtercard

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1030Opticaldriveortravelcover”onpage60

•“1120Palmrestassemblywithcables”onpage74

80HardwareMaintenanceManual

Table23.RemovalstepsofBluetoothdaughtercard

StepScrew(quantity)Color

1

Wheninstalling:Makesurethattheconnectoronbottomsideofthecardisattachedrmlytothesystemboard.

M2×3mm,at-head,nylon-coated(1)

Black0.181Nm

Torque

(1.85kgfcm)

1160MediaCardReaderslotboardandMediaCardReadercable assembly

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1020ExpressCardblankbezelandMediaCardblankbezel”onpage58

•“1030Opticaldriveortravelcover”onpage60

•“1090SIMslotcover”onpage69

•“1120Palmrestassemblywithcables”onpage74

Chapter8.RemovingandreplacingaFRU81

Table24.RemovalstepsofMediaCardReaderslotboardandMediaCardReadercableassembly

1

1

Wheninstalling:MakesurethattheMediaCardReadercableassemblyisattachedrmlytothesystemboardand
theMediaCardReaderslotboard.

82HardwareMaintenanceManual

Table24.RemovalstepsofMediaCardReaderslotboardandMediaCardReadercableassembly(continued)

2

2

3

StepScrew(quantity)Color

2

M2×3mm,at-head,nylon-coated(2)

1170Keyboard

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1030Opticaldriveortravelcover”onpage60

•“1120Palmrestassemblywithcables”onpage74

Torque

Black0.181Nm

(1.85kgfcm)

Chapter8.RemovingandreplacingaFRU83

Table25.Removalstepsofkeyboard

1

2

4

2

3

5

6

7

Wheninstalling:Makesurethescrewhasbeenfastenedtosecuretokeyboard.

StepScrew(quantity)Color

1

M2×5mm,at-head,nylon-coated(1)

Torque

Black0.181Nm

(1.85kgfcm)

Wheninstalling:Makesurealltheconnectorsareattachedrmlytothesystemboard.

StepScrew(quantity)Color

84HardwareMaintenanceManual

Torque

Table25.Removalstepsofkeyboard(continued)

8

6

7

Wheninstalling:Attachthekeyboardsothatthekeyboardedgesareundertheframeasshowninthefollowing
gure.Tomakesurethatthefrontsideofthekeyboardishousedrmly,gentlypressthekeyswithyourpalmsand
slightlyslidethekeyboardtowardyouuntilitsnapsintoposition.

M2×3mm,at-head,nylon-coated(1)

M2×2mm,at-head(1)Silver

Black0.181Nm

(1.85kgfcm)

0.181Nm
(1.85kgfcm)

1180Keyboardbezel

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1030Opticaldriveortravelcover”onpage60

Chapter8.RemovingandreplacingaFRU85

•“1070Fanassembly”onpage66

3

3

1

2

2

2

3

3

1

2a

2a

2a

•“1110WirelessWANslotcoverandPCIExpressMiniCardforwirelessWAN”onpage71

•“1110mSATAsolidstatedrive”onpage73

•“1120Palmrestassemblywithcables”onpage74

•“1130PCIExpressMiniCardforwirelessLAN”onpage78

•“1170Keyboard”onpage83

Table26.Removalstepsofkeyboardbezel

Note:Steps2aand3aareonlyforThinkPadL520models.F orThinkPadL420andL421models,skipsteps

2aand3a.

StepScrew(quantity)Color

1

2

2a

3

3a

M2.5×6.5mm,at-head,nylon-coated(2)

M2×3mm,at-head,nylon-coated(3)

M2×3mm,at-head,nylon-coated(2)

M2×5mm,at-head,nylon-coated(3)

M2×5mm,at-head,nylon-coated(1)

Torque

Black0.392Nm

(4kgfcm)

Black0.181Nm

(1.85kgfcm)

Black0.181Nm

(1.85kgfcm)

Black0.181Nm

(1.85kgfcm)

Black0.181Nm

(1.85kgfcm)

86HardwareMaintenanceManual

Table26.Removalstepsofkeyboardbezel(continued)

4

4

7

5

6

5

6

8

8

StepScrew(quantity)Color

4

M2×3mm,at-head,nylon-coated(2)

Black0.181Nm

Torque

(1.85kgfcm)

Wheninstalling:Makesurethattheconnectorsareattachedrmlytothesystemboard.

1190LCDunit

Foraccess,removetheseFRUsinorder:

Chapter8.RemovingandreplacingaFRU87

•“1010Batterypack”onpage57

1

1

2

2

3

•“1030Opticaldriveortravelcover”onpage60

•“1110WirelessWANslotcoverandPCIExpressMiniCardforwirelessWAN”onpage71

•“1110mSATAsolidstatedrive”onpage73

•“1120Palmrestassemblywithcables”onpage74

•“1130PCIExpressMiniCardforwirelessLAN”onpage78

•“1170Keyboard”onpage83

•“1180Keyboardbezel”onpage85

Table27.RemovalstepsofLCDunit

StepScrew(quantity)Color

1

M2.5×6.5mm,at-head,nylon-coated(2)

Black0.392Nm

Torque

(4kgfcm)

Wheninstalling:Makesurethattheconnectorsareattachedrmlytothesystemboard.

88HardwareMaintenanceManual

Table27.RemovalstepsofLCDunit(continued)

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

Instep4,releasewirelessantennacablesfromthecableguides.

ForThinkPadL520models:

ForThinkPadL420andL421models:

Wheninstalling:Makesurethatthecablesareattachedtothecableguidesrmly.

Attention:Whenyouroutethecables,makesurethattheyarenotsubjectedtoanytension.Tensioncouldcause

thecablestobedamagedbythecableguides,orawiretobebroken.

Chapter8.RemovingandreplacingaFRU89

Table27.RemovalstepsofLCDunit(continued)

5

5

5

5

6

6

StepScrew(quantity)Color

5

M2.5×6.5mm,at-head,nylon-coated(4)

Black0.392Nm

Torque

(4kgfcm)

2010Topshieldingassembly

Foraccess,removetheseFRUsinorder:

90HardwareMaintenanceManual

•“1010Batterypack”onpage57

3

1

1

1

2

2

2

2

2

•“1030Opticaldriveortravelcover”onpage60

•“1110WirelessWANslotcoverandPCIExpressMiniCardforwirelessWAN”onpage71

•“1110mSATAsolidstatedrive”onpage73

•“1120Palmrestassemblywithcables”onpage74

•“1130PCIExpressMiniCardforwirelessLAN”onpage78

•“1170Keyboard”onpage83

•“1180Keyboardbezel”onpage85

•“1190LCDunit”onpage87

Table28.Removalstepsoftopshieldingassembly

ForThinkPadL520models:

StepScrew(quantity)Color

1

M2×3mm,at-headd,nylon-coated(3)

Black0.181Nm

Torque

(1.85kgfcm)

2

M2×5mm,at-head,nylon-coated(5)

Black0.181Nm

(1.85kgfcm)

Chapter8.RemovingandreplacingaFRU91

Table28.Removalstepsoftopshieldingassembly(continued)

2

1

1

2

2

3

ForThinkPadL420andL421models:

StepScrew(quantity)Color

1

2

M2×3mm,at-head,nylon-coated(2)

M2×5mm,at-head,nylon-coated(3)

Torque

Black0.181Nm

(1.85kgfcm)

Black0.181Nm

(1.85kgfcm)

92HardwareMaintenanceManual

2020Systemboardassembly

Importantnoticesforhandlingthesystemboard:

Whenhandlingthesystemboard,bearthefollowinginmind.

•Thesystemboardhasanaccelerometer,whichcanbebrokenbyapplyingseveralthousandsofG-forces.

Note:Droppingasystemboardfromaheightofaslittleas6inchessothatitfallsatonahardbenchcansubject
theaccelerometertoasmuchas6,000G'sofshock.

•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,orcomposite.

•Ifasystemboardisdropped,youmusttestit,usingPC-DoctorforDOS,tomakesurethattheHDDActive

ProtectionSystem™stillfunctions.

Note:IfthetestshowsthattheHDDActiveProtectionSystemisnotfunctioning,besuretodocumentthedrop
inanyrejectreport,andreplacethesystemboard.

•Avoidroughhandlingofanykind.

•Ateverypointintheprocess,besurenottodroporstackthesystemboard.

•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatoracorrugated
conductivesurface.

Afterreplacingthesystemboard,runPC-DoctorforDOStomakesurethattheHDDActiveProtectionSystem
stillfunctions.Theprocedureisasfollows:

1.Placethecomputeronahorizontalsurface.

2.RunDiagnostics➙ThinkPadDevices➙HDDActiveProtectionT est.

Attention:Donotapplyphysicalshocktothecomputerwhilethetestisrunning.

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage57

•“1020ExpressCardblankbezelandMediaCardblankbezel”onpage58

•“1030Opticaldriveortravelcover”onpage60

•“1040Thermalcover”onpage61

•“1050Harddiskdriveorsolidstatedriveassembly”onpage62

•“1060DIMM”onpage65

•“1070Fanassembly”onpage66

•“1080CPU”onpage68

•“1090SIMslotcover”onpage69

•“1110WirelessWANslotcoverandPCIExpressMiniCardforwirelessWAN”onpage71

•“1110mSATAsolidstatedrive”onpage73

•“1120Palmrestassemblywithcables”onpage74

•“1130PCIExpressMiniCardforwirelessLAN”onpage78

•“1140Backupbattery”onpage80

•“1150Bluetoothdaughtercard”onpage80

•“1160MediaCardReaderslotboardandMediaCardReadercableassembly”onpage81

•“1170Keyboard”onpage83

•“1180Keyboardbezel”onpage85

•“1190LCDunit”onpage87

•“2010Topshieldingassembly”onpage90

Chapter8.RemovingandreplacingaFRU93

Table29.LocationofmajorsensitivecomponentsonthesystemboardinThinkPadL420,L421,andL520models

a

b

d

Thefollowingcomponentssolderedonthetopsideofthesystemboardareextremelysensitive.Whenyouservice
thesystemboard,avoidanykindofroughhandling.

aAccelerometerchipfortheHDDActiveProtectionSystem
bMultiChipPackage(MCP)processor
cVideochip(onlyfordiscretemodels)
dPlatformControllerHub(PCH)

ForThinkPadL420andL421modelswithanintegratedthermalmodule(topsideview):

ForThinkPadL420andL421modelswithanintegratedthermalmodule(bottomsideview):

94HardwareMaintenanceManual