Lenovo K4450 Notebook User Manual

HardwareMaintenanceManualLenovoK4450andK4450A

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.•Avoidcontactwithotherpeople.•Wearagroundedwriststrapagainstyourskintoeliminatesta

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Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformationunderAppendixA“Notices”onpage79.FirstEdition(May2014)©Copyrigh

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Chapter2.GeneralcheckoutThischaptercontainsthefollowingtopics:•“Whattodofirst”onpage21•“Powersystemcheckout”onpage22Beforeyougotothecheckoutinstruction

•Improperdiscinsertionoruseofanopticaldrive•Diskettedrivedamagecausedbypressureonthediskettedrivecover,foreignmaterialinthedrive,ortheinsertionofadisk

•Ifthevoltageisacceptable,dothefollowing:a.Replacethesystemboard.b.Iftheproblempersists,calltheCustomerSupportCenter.Note:Noisefromtheacpoweradapterdo

ContentsAboutthismanual...iiiChapter1.Safetyinformation...1Generalsafety...1Electricalsafety...1Safetyinspectionguide

•Ifthevoltageismorethan+12.0Vdc,dischargethebatterypackuntilthevoltagebecomeslessthan+12.0Vdcandthenrechargethebatterypack.Ifthevoltagestillislessthan

Chapter3.ImportantserviceinformationThischapterpresentsthefollowinginformation:•“Recoveringthecomputersettings”onpage25•“Usingpasswords”onpage25•“Powe

Attention:Ifyouforgetthepassword,thereisnoserviceproceduretoresetthepassword.Thesystemboardmustbereplacedforascheduledfee.•Power-onpassword:Apower-onp

HibernationmodeInhibernationmode,thefollowingoccurs:•Thesystemstatus,RAM,VRAM,andsetupdataarestoredontheharddiskdrive.•Thesystemispoweredoff.Ifyouhave

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Chapter4.StatusindicatorsThistopicpresentsthesystemstatusindicatorsthatshowthestatusofthecomputer.123Table1.StatusindicatorsIndicatorMeaning1ActivePro

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Chapter5.FnkeycombinationsThefollowingtabledescribesthefunctionsofFnkeycombinations.Table2.FunctionkeycombinationsKeycombinationDescriptionFn+EscEnabl

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Chapter6.LocationsThischapterprovidesinformationaboutcomponentlocations.Locatingcomputercontrols,connectors,andindicatorsThistopicintroducesthelocatio

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Bottomview214345678910Figure2.Bottomview1Batterylock6Fanlouvers2Batterypack7Monitorconnector3Batterylatch8AlwaysOnUSBconnector4Speakers9Comboaudiojack

–Self-serviceCRUs:TheseCRUsunplugorareheldbynomorethantwoscrews.ExamplesofthesetypesofCRUsincludetheacpoweradapter,powercord,battery,andharddiskdrive.

21222019242317181615141245678101112133Table3.MajorFRUsandCRUsNo.FRUdescriptionCRUID1LCDunitN2KeyboardbezelwithtouchpadN3FingerprintboardcableN4Fingerp

Table3.MajorFRUsandCRUs(continued)No.FRUdescriptionCRUID10Harddiskdrive*11Harddiskdrivebracket*12Batterypack*13Bottomslotcover*14BasecoverN15WirelessL

1234675Table4.LCDFRUsNo.FRUdescriptionCRUID1LCDBezelN2HingesN3CameraandmicrophonesboardN4LCDcoverN5AntennasN6LCDcableN7LCDpanelNPartnumbersfororderabl

Table5.Partnumbersfornon-LCDmoduleFRUsandCRUsNo.FRUorCRUcategoryDescriptionPartnumber2KeyboardbezelwithtouchpadLK490sUpperCaseW/TP902024993Fingerprint

Table5.Partnumbersfornon-LCDmoduleFRUsandCRUs(continued)LK490sDC-INBracket902024918DC-inconnectorLK491sDC-INCable9020337410Harddiskdrive(320GB)HTS5450

Table5.Partnumbersfornon-LCDmoduleFRUsandCRUs(continued)Intel7260BN2x2BN+BTPCIEHMCWLAN20200412Intel7260WilkinsPeak22x211ac+BTCombo(HMC)20200388CbtRTL8

Table5.Partnumbersfornon-LCDmoduleFRUsandCRUs(continued)19MediacardreaderslotboardLK491sIOBoard9000370520ThermalmoduleassemblyLK491sThermalModuleW/FAN

Table6.PartnumbersforLCD-moduleFRUs(continued)LK490sLCDCable902024907LCDpanelSECL TN140AT28-401HDAGFLED1NBLCD18200791LGDLP140WH2-TLT1HDAGFLED1NBLCD182

AboutthismanualThismanualprovidesserviceandreferenceinformationforthefollowingLenovo®products.MachineMachineType(MT)LenovoK4450andK4450A80H0,20438This

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Chapter7.FRUreplacementnoticesThischapterpresentsnoticesrelatedtoremovingandreplacingparts.ReadthischaptercarefullybeforereplacinganyFRU.CRUstatementf

•IfyouareinstructedtoreplaceaFRUbutthereplacementdoesnotsolvetheproblem,reinstalltheoriginalFRUbeforeyoucontinue.•Somecomputershavebothaprocessorboard

Chapter8.RemovingorreplacingaFRUThischapterprovidesinstructionsonhowtoremoveorreplaceaFRU.CRUstatementforcustomers:Youcanresolvesomeproblemswithyourpr

1010BatterypackRemovalstepsofthebatterypackDANGERUseonlythebatteryspecifiedinthepartslistforyourcomputer.Anyotherbatterycouldigniteorexplode.Unlocktheb

RemovalstepsofthebottomslotcoverRemovethescrew1,andthenremovethebottomslotcover2.21StepScrew(quantity)ColorTorque1M2×3mm,flat-head,nylon-coated(1)Black

RemovalstepsofthememorymodulesReleasethetwolatchesonbothedgesofthesocketatthesametime1,andthencarefullyremovethememorymodule2.211Wheninstalling:Insert

1040HarddiskdriveassemblyForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage48•“1020Bottomslotcover”onpage48Importantnoticeforreplacingaharddisk

Removetheharddiskdriveassembly.3Wheninstalling:Ensurethattheharddiskdriveconnectorisattachedfirmly.RemovalstepsoftheharddiskdrivebracketRemovethescrews

RemovalstepsofthePCIExpressMiniCardforwirelessLANInsteps1,unplugtheconnectorsbyusingtheremovaltoolfortheantennaRFconnectororpickuptheconnectorswithyou

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Attention:•Donotdropthedriveorapplyanyphysicalshocktoit.Thedriveissensitivetophysicalshock.Improperhandlingcancausedamageandpermanentlossofdata.•Befor

RemovalstepsofthebackupbatteryDANGERUseonlythebatteryspecifiedinthepartslistforyourcomputer.Anyotherbatterycouldigniteorexplode.Carefullyprythebackupba

Pushhardtounlatchthekeyboard.22Carefullydetachthekeyboardandthenliftitupuntilyoucanseehowitisconnected.356HardwareMaintenanceManual

Detachthekeyboardconnector,andthenremovethekeyboard.456Wheninstalling:Ensurethatthekeyboardconnectorisattachedfirmly.1090KeyboardbezelForaccess,removet

RemovalstepsofthekeyboardbezelRemovethescrews1and2.1111122211111StepScrew(quantity)ColorTorque1M2×6mm,flat-head,nylon-coated(10)Black0.181Nm(1.85kgf-cm

Removethescrews3,andthendetachtheconnectors.76894533StepScrew(quantity)ColorTorque3M2×6mm,flat-head,nylon-coated(2)Black0.181Nm(1.85kgf-cm)Wheninstalli

Detachthekeyboardbezelfromtheframe,andthenremovethekeyboardbezel.101010111010101010101110FingerprintboardbracketandfingerprintboardwithcableForaccess,r

Removethefingerprintboardwiththefingerprintboardcable.31120PowerboardForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage48•“1020Bottomslotcover”on

RemovalstepsofthemediacardreaderslotboardDetachthecables.132Wheninstalling:Ensurethatthecablesareattachedfirmly.62HardwareMaintenanceManual

Removethescrews4,andthenremovethemediacardreaderslotboard.4445StepScrew(quantity)ColorTorque4M2×3mm,flat-head,nylon-coated(3)Black0.181Nm(1.85kgf-cm)11

Chapter1.SafetyinformationThischapterpresentsthefollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouserviceaLenovonotebookcomputer.•“General

LocatingmajorsensitivecomponentsonthesystemboardAttention:Thefollowingcomponentsmountedonasystemboardareextremelysensitive.Improperhandlingofasystembo

RemovalstepsofthesystemboardassemblyDetachtheconnectors.546312Wheninstalling:Ensurethatalltheconnectorsareattachedfirmly.Removethescrews7.777StepScrew(

Liftthesystemboardassemblycarefully,andthendetachtheconnector9.89Wheninstalling:Ensurethattheconnectorisattachedfirmlytothesystemboard.1150Thermalmodul

RemovalstepsofthethermalmoduleassemblyDetachtheconnector1.Loosenthescrews2to7.1354276Wheninstalling:Ensurethattheconnectorisattachedfirmlytothesystembo

FormodelswithanintegratedthermalmoduleassemblyaFormodelswithadiscretethermalmoduleassemblyab1160Speakers,LCDunitandbasecoverForaccess,removetheseFRUsi

RemovalstepsofthespeakersRemovethescrews1,andthenremovethespeakers.111112StepScrew(quantity)ColorTorque1M2×3.1mm,flat-head,nylon-coated(5)Black0.181Nm(

RemovalstepsoftheLCDunitandthebasecoverReleasetheantennacablesfromthecableguides.Removethescrews1.111111StepScrew(quantity)ColorTorque1M2.5×5mm,flat-he

RemovetheLCDunitfromthebasecover.22ApplyinglabelstothebasecoverThenewbasecoverisshippedwithakitcontaininglabelsofseveralkinds.Applythelabelsasshownint

123451Barcodelabel4COAlabel2Ratinglabel5GenuineMicrosoftlabel3Systembarcodelabel1170DC-inconnectorForaccess,removetheseFRUsinorder:•“1010Batterypack”o

2010LCDfrontbezelForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage48•“1160Speakers,LCDunitandbasecover”onpage68RemovalstepsoftheLCDfrontbezelR

Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurr

•“1010Batterypack”onpage48•“1160Speakers,LCDunitandbasecover”onpage68•“2010LCDfrontbezel”onpage73RemovalstepsofthecameraandmicrophoneboardDetachthecon

RemovalstepsoftheLCDpanelandtheLCDcableRemovethescrews1,andthenremovetheLCDpanel2.11112StepScrew(quantity)ColorTorque1M2×2.5mm,flat-head,nylon-coated(4

RemovalstepsofthehingesRemovethescrews1.111111StepScrew(quantity)ColorTorque1M2×3mm,flat-head,nylon-coated(6)Black0.181Nm(1.85kgf-cm)Removethehinges.22

RemovalstepsoftheantennaassemblyandtheLCDrearcoverReleasetheantennacablesfromthecableguidesoftheLCDrearcoverassemblyandfromthehinges.11111122Cablerout

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AppendixA.NoticesLenovomaynotoffertheproducts,services,orfeaturesdiscussedinthisdocumentinallcountries.ConsultyourlocalLenovorepresentativeforinformat

TrademarksThefollowingtermsaretrademarksofLenovointheUnitedStates,othercountriesorboth:ActiveProtectionSystemLenovoLenovologoOneKeyMicrosoftandWindows

SafetyinspectionguideThepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseachmachinewasdesignedandbuilt,requiredsaf