Lenovo V4400u User Manual

HardwareMaintenanceManual

LenovoV4400u

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation

underAppendixA“Notices”onpage85

.

SecondEdition(August2013)

©CopyrightLenovo2013.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.

Contents

Aboutthismanual...........iii

Chapter1.Safetyinformation.....1

Generalsafety...............1

Electricalsafety..............1

Safetyinspectionguide...........3

Handlingdevicesthataresensitivetoelectrostatic

discharge.................3

Groundingrequirements...........4

Safetynotices(multilingualtranslations).....4

Chapter2.Generalcheckout.....21

Whattodorst..............21

Powersystemcheckout...........22

Checkingtheacpoweradapter......22

Checkingoperationalcharging......23

Checkingthebatterypack........23

Chapter3.Importantservice

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

Recoveringthecomputersettings.......25

Usingpasswords..............25

Powermanagement............25

Screenblankmode...........26

Sleepmode..............26

Hibernationmode...........26

Chapter4.Statusindicators.....29

Chapter5.Fnkeycombinations...31

Chapter6.Locations.........33

Locatingcomputercontrols,connectors,and

indicators.................33

Frontview...............33

Bottomview..............34

LocatingFRUsandCRUs..........34

MajorFRUsandCRUs..........35

LCDFRUsandCRUs..........36

LookingupFRUinformation.........37

Chapter7.FRUreplacement

notices................39

ImportantnoticeforreplacingFRUs......39

Screwnotices...............40

Chapter8.Removingorreplacinga

FRU..................41

Generalguidelines.............41

1010LenovoOneLinkconnectorcover.....42

1020Basecover..............43

1030Batterypack.............44

1040Backupbattery............45

1050Memorymodules...........46

1060PCIExpressMiniCardforwirelessLAN..47

1070M.2solid-statedrive..........47

1080Harddiskdriveassembly........48

1090Fingerprintboardbracketandngerprint

board..................51

1100Speakerassembly...........52

1110T ouchpanel.............53

1120Hallsensor..............55

1130Mediacardreaderslotboard.......55

1140Thermalmoduleassembly........57

1150Systemboardassembly.........59

1160I/Oboard..............62

1170Thermalsensor............63

Formodelswithnon-touchpanel.......64

2010LCDUnit.............64

2030T ouchcontrolboardandLCDpanel..66

2020LCDhingekit...........69

2040Camera-and-microphone-combocard.70

2050LCDcableassembly........71

2050AntennakitandLCDrearcover....72

Formodelswithtouchpanel.........74

2010LCDUnit.............74

2020LCDhingekit...........76

2030T ouchcontrolboardandLCDpanel..77
2040Camera-and-microphone-combocard.81

2050AntennakitandLCDrearcover....81

AppendixA.Notices..........85

Trademarks................86

©CopyrightLenovo2013

i

iiHardwareMaintenanceManual

Aboutthismanual

ThismanualprovidesserviceandreferenceinformationforthefollowingLenovo

Machine

LenovoV4400u20241

MachineType(MT)

®

products.

Thismanualprovidesinformationaboutthecomputerfeatures,specications,componentlocations,
hardwarereplacementprocedures,andpartslisting.Thismanualalsoincludessafetyguidelinesand
importantnoticesforservicingthecomputer.

Important:

•ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithLenovoproducts.Use
thismanualtotroubleshootproblemseffectively.

•BeforeservicingaLenovoproduct,ensurethatyoureadalltheinformationinChapter1“Safety
information”onpage1

andChapter3“Importantserviceinformation”onpage25.

©CopyrightLenovo2013

iii

ivHardwareMaintenanceManual

Chapter1.Safetyinformation

Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea
Lenovonotebookcomputer.

•“Generalsafety”onpage1

•“Electricalsafety”onpage1

•“Safetyinspectionguide”onpage3

•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3

•“Groundingrequirements”onpage4

•“Safetynotices(multilingualtranslations)”onpage4

Generalsafety

Followtheserulestoensuregeneralsafety:

•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Makesurethatyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallybetweenyourfeet.

3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.Donotattempttoliftanyobjectthatweighsmorethan16kg(35lb)orthatyou
thinkistooheavyforyou.

•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,becausemetal
objectsaregoodelectricalconductors.

•Wearsafetyglasseswhenyouarehammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.

•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.

•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.

•Fanlouversonthemachinehelptopreventoverheatingofinternalcomponents.Donotobstructfan
louversorcoverthemwithlabelsorstickers.

Electricalsafety

Observethefollowingruleswhenworkingonelectricalequipment.

©CopyrightLenovo2013

1

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:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.

2HardwareMaintenanceManual

Safetyinspectionguide

Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach
machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians
frominjury.Thisguideaddressesonlythoseitems.Y oushouldusegoodjudgmenttoidentifypotential
safetyhazardsduetoattachmentofnon-Lenovofeaturesoroptionsnotcoveredbythisinspectionguide.

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-Lenovoalterations.Usegoodjudgmentastothesafetyofanynon-Lenovo
alterations.

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.

2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.

WhenhandlingESD-sensitiveparts:

Chapter1.Safetyinformation3

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

•Avoidcontactwithotherpeople.

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeevenwhen
youarewearingawriststrap.

•Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen
handlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecic
servicerequirement.

Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.

–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.

–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor

referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundgroundprongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.

Safetynotices(multilingualtranslations)

Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•BrazilianPortuguese

•French

•German

•Hebrew

•Japanese

•Korean

•Spanish

•T raditionalChinese

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Chapter2.Generalcheckout

Thischaptercontainsthefollowingtopics:

•“Whattodorst”onpage21

•“Powersystemcheckout”onpage22

Beforeyougotothecheckoutinstructions,ensurethatyoureadthefollowingimportantnotes.

Importantnotes:

•Onlycertiedtrainedpersonnelshouldservicethecomputer.

•BeforereplacinganyFRU,readtheentirepageonremovingandreplacingFRUs.

•WhenyoureplaceFRUs,itisrecommendedtousenewnylon-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:

•Nameandphonenumberoftheservicetechnician

•Dateofservice

•Dateonwhichthemachinefailed

•Dateofpurchase

•ProcedureindexandnumberofthepageonwhichthefailingFRUwasdetected

•NameandpartnumberofthefailingFRU

•Machinetype,modelnumber,andserialnumber

•Nameandaddressofthecustomer

Note:Duringthewarrantyperiod,thecustomermayberesponsibleforrepaircostsifthecomputerdamage
wascausedbymisuse,accident,modication,unsuitablephysicaloroperatingenvironment,orimproper
maintenancebythecustomer.Followingisalistofsomecommonitemsthatarenotcoveredunderwarranty
andsomesymptomsthatmightindicatethatthesystemwassubjectedtostressbeyondnormaluse.

Beforecheckingproblemswiththecomputer,determinewhetherthedamageiscoveredunderthewarranty
byreferringtothefollowinglist:

Thefollowingarenotcoveredunderwarranty:

•LCDpanelcrackedfromtheapplicationofexcessiveforceorfrombeingdropped

•Scratched(cosmetic)parts

•Distortion,deformation,ordiscolorationofthecosmeticparts

•Plasticparts,latches,pins,orconnectorsthathavebeencrackedorbrokenbyexcessiveforce

•Damagecausedbytheliquidspilledintothecomputer

•DamagecausedbytheimproperinsertionofaPCcardortheinstallationofanincompatiblecard

©CopyrightLenovo2013

21

•Improperdiscinsertionoruseofanopticaldrive

(20V)

1

3

2

•Diskettedrivedamagecausedbypressureonthediskettedrivecover,foreignmaterialinthedrive,
ortheinsertionofadiskettewithmultiplelabels

•Damagedorbentdisketteejectbutton

•Fusesblownbyattachmentofanunsupporteddevice

•Forgottencomputerpassword(makingthecomputerunusable)

•Stickykeyscausedbyspillingliquidontothekeyboard

•Useofanincorrectacpoweradapteronnotebookcomputers

Thefollowingsymptomsmightindicatedamagecausedbynonwarrantedactivities:

•Missingpartsmightbeasymptomofunauthorizedserviceormodication.

•Ifthespindleofaharddiskdrivebecomesnoisy,itmayhavebeensubjectedtoexcessiveforce,
ordropped.

Powersystemcheckout

Toverifyapowersymptom,dothefollowing:

1.Turnoffthecomputer.

2.Removethebatterypack.

3.Connecttheacpoweradapter.

4.Checkthatpowerissuppliedwhenyouturnonthecomputer.

5.Turnoffthecomputer.

6.Disconnecttheacpoweradapterandinstallthechargedbatterypack.

7.Checkthatthebatterypacksuppliespowerwhenyouturnonthecomputer.

Ifyoususpectapowerproblem,refertothefollowingtopicsforacheckout:

•“Checkingtheacpoweradapter”onpage22

•“Checkingoperationalcharging”onpage23

•“Checkingthebatterypack”onpage23

Checkingtheacpoweradapter

Ifthecomputerfailsonlywhentheacpoweradapterisused,refertotheinformationinthistopictocheck
theacpoweradapter.

•Ifthepower-onindicatordoesnotturnon,checkthepowercordoftheacpoweradapterforcorrect
continuityandinstallation.

•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingoperationalcharging”onpage23

Tochecktheacpoweradapter,dothefollowing:

1.Unplugtheacpoweradaptercablefromthecomputer.

2.Measuretheoutputvoltageacrosstheplugoftheacpoweradaptercable.Thecorrectvoltagesare
showninthefollowingtable.

Pin

1+20

20

3

Voltage(Vdc)

Ground

.

Note:Theoutputvoltageacrosspin2mightdifferfromthevoltagethatyoumeasure.

3.Dependingonthevoltagethatyoumeasure,dooneofthefollowing:

•Ifthevoltageisnotcorrect,replacetheacpoweradapter.

22HardwareMaintenanceManual

•Ifthevoltageisacceptable,dothefollowing:

1(+)

2(+)

5

4

3

6(-)

7(-)

a.Replacethesystemboard.
b.Iftheproblempersists,calltheCustomerSupportCenter.

Note:Noisefromtheacpoweradapterdoesnotalwaysindicateadefect.

Checkingoperationalcharging

Tocheckwhetherthebatterypackchargesproperlyduringoperation,dothefollowing:

Note:Beforeyoubegin,installadischargedbatterypackorabatterypackthathaslessthan50%ofthe
totalpowerremaininginthecomputer.

1.Ifthebatterystatusindicatordoesnotturnon,removethebatterypackandletitreturntoroom
temperature.

2.Reinstallthebatterypack.

3.Iftheindicatorstilldoesnotturnon,replacethebatterypack.

4.Iftheindicatorstilldoesnotturnon,replacethesystemboard.Otherwise,referto“Checkingthebattery
pack”onpage23tochecktheoriginalbatterypack.

Checkingthebatterypack

ThebatterystatusiconintheMicrosoft

®

Windows

powerremaining.

TocheckdetailedbatterystatusinformationontheWindowsoperatingsystems,dooneofthefollowing:

®

noticationareadisplaysthepercentageofbattery

•ClickStart➙LenovoSolutionCenter➙System➙Battery.

•LaunchtheLenovoSettingsprogramfromtheStartscreen,andthenclickPower.

Tocheckthebatterypack,dothefollowing:

1.Turnoffthecomputeranddisconnecttheacpoweradapter.

2.Removethebatterypackandmeasurethevoltagebetweenbatteryterminals1(+)and7(-).The
correctvoltagesareshowninthefollowingtable.

Terminal

1+0to+14

7

Voltage(Vdc)

Ground(-)

3.Measuretheresistancebetweenbatteryterminals5and7.Theresistanceshouldbe4to30KΩ.Ifthe
resistanceisnotcorrect,replacethebatterypack.

4.Dependingonthevoltagethatyoumeasure,dooneofthefollowing:

•Ifthevoltageislessthan+12.0Vdc,rechargethebatterypack.Ifthevoltagestillislessthan+12.0V

dcafterrecharging,replacethebatterypack.

•Ifthevoltageismorethan+12.0Vdc,dischargethebatterypackuntilthevoltagebecomesless

than+12.0Vdcandthenrechargethebatterypack.Ifthevoltagestillislessthan+12.0Vdcafter
recharging,replacethebatterypack.

Note:Rechargingwilltakeatleastthreehours,evenifthebatterystatusindicatordoesnotturnon.

Chapter2.Generalcheckout23