Lenovo E420, E425, MT1141, MT1167, MT1198 Service Manual

HardwareMaintenanceManual

ThinkPadEdgeE420andE425

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation

underAppendixA“Notices”onpage117.

SixthEdition(October2012)

©CopyrightLenovo2012.

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..............25

StrategyforreplacingFRUs.........25

Strategyforreplacingaharddiskdrive...26 Importantnoticeforreplacingasystem

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

Howtouseerrormessage........26

StrategyforreplacingFRUsforCTO,CMV,and

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

Productdenition............26

FRUidenticationforCTO,CMV ,andGAV

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

Chapter3.Generalcheckout.....29

Whattodorst..............29

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

SystemsupportingtheLenovoThinkVantage ToolboxprogramandthePC-DoctorforDOS

diagnosticsprogram..........30

SystemsupportingtheLenovodiagnostics

programs...............34

Powersystemcheckout...........36

Checkingtheacpoweradapter......36

Checkingoperationalcharging......37

Checkingthebatterypack........37

Checkingthebackupbattery.......38

Chapter4.Relatedservice

information..............39

RestoringthefactorycontentsbyusingRecovery

DiscSet.................39

Passwords................40

Power-onpassword...........40

Hard-diskpassword...........40

Supervisorpassword..........41

Howtoremovethepower-onpassword...41

Howtoremovethehard-diskpassword...41

Powermanagement............42

Screenblankmode...........42

Sleepmode..............42

Hibernationmode...........42

Symptom-to-FRUindex...........43

Numericerrorcodes..........44

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

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

LCD-relatedsymptoms.........45

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

Undeterminedproblems.........45

Chapter5.Statusindicators.....47

Chapter6.Specialkeys........49

Chapter7.FRUreplacement

notices................51

Screwnotices...............51

Retainingserialnumbers...........52

Restoringtheserialnumberofthesystem

unit.................52

RetainingtheUUID...........53

ReadingorwritingtheECAinformation...53

Chapter8.Removingandreplacinga

FRU..................55

BeforeservicingThinkPadEdgeE420models..55

1010Batterypack.............56

1020ExpressCardblankbezel........57

1030Bottomslotcover...........58

1040Opticaldriveortravelcover.......59

1050Memorymodules...........60

1060Harddiskdriveassembly........60

1070PCIExpressMiniCardforwirelessLAN..62 1080PCIExpressMiniCardforwirelessWAN..63

1080mSA T Asolidstatedrive.........64

1090Backupbattery............66

1110Keyboard..............66

1120T opcaseassembly...........68

1130Bluetoothdaughtercard........71

1140Expresssubcard...........72

1150Speakerassembly...........73

1160Systemboardassemblyandfanassembly.74

1170CPU................80

1180DC-insubcardandbasecoverassembly..81

©CopyrightLenovo2012

1190LCDunit...............84

2010LCDbezelassembly..........86

2020Integratedcamera...........87

2030LCDpanel,LCDcable,LCDrearcover

assembly,andhinges............88

2040WirelessLANantennaassembly,wireless WANantennaassembly,andLCDrearcover

assembly.................90

Chapter9.Locations.........93

Frontview................93

Rearview.................94

Bottomview...............94

Miscellaneousparts............109

acpoweradapters.............109

Powercords...............110

Recoverydiscs..............111

WindowsXPProfessional(32bit)DVDs...111

Windows7HomeBasic(32bit)DVDs....112

Windows7HomeBasic(64bit)DVDs....112

Windows7HomePremium(32bit)DVDs..113 Windows7HomePremium(64bit)DVDs..113

Windows7Professional(32bit)DVDs....114

Windows7Professional(64bit)DVDs....115

Commonservicetools...........116

Chapter10.Partslist.........95

Overall..................96

LCDFRUs................105

Keyboard.................108

AppendixA.Notices.........117

Electronicemissionsnotices.........118

Trademarks................118

iiHardwareMaintenanceManual

Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad

ThinkPadEdgeE420

MachineT ype(MT)1141,and1167

ThinkPadEdgeE425

MachineT ype(MT)1198

products.

Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.

Important:

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

andChapter2“Importantserviceinformation”onpage25.

©CopyrightLenovo2012

iii

ivHardwareMaintenanceManual

Chapter1.Safetyinformation

Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea ThinkPadnotebookcomputer.

•“Generalsafety”onpage1

•“Electricalsafety”onpage2

•“Safetyinspectionguide”onpage3

•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3

•“Groundingrequirements”onpage4

•“Safetynotices(multilingualtranslations)”onpage4

•“Lasercompliancestatement(multilingualtranslations)”onpage17

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.

©CopyrightLenovo2012

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.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundgroundprongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.