Lenovo N20p Chromebook Manuel d'utilisateur

HardwareMaintenanceManualLenovoN20pChromebook

GroundingrequirementsElectricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Propergroundingoftheelectricaloutletcanbeveri

DANGERDANGERDANGERDANGERChapter1.Safetyinformation5

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Chapter2.GeneralcheckoutThischaptercontainsthefollowingtopics:Beforeyougotothecheckoutinstructions,ensurethatyoureadthefollowingimportantnotes.Importa

•Damagecausedbytheimproperinsertionofapersonal-computercard(PCcard)ortheinstallationofanincompatiblecard•Improperdiscinsertionoruseofanexternaloptical

Chapter3.IdetifyingFRUs(CRUs)AllFRUs(CRUs)forLenovoN20pChromebookTheexplodedillustrationshelpLenovoservicetechniciansidentifyFRUsorCRUsthattheymayneed

13856241171091312Figure1.N20pexplodedview22HardwareMaintenanceManual

Table1.FRU(CRU)categoriesNo.FRU(CRU)categoryCRUID1LCDmoduleN2Keyboard**3UppercaseN4TouchpadcableN5dc-inconnectorbracketN6dc-inconnectorN7SystemboardN8

HardwareMaintenanceManualLenovoN20pChromebook

Table2.FRUcategoriesfortheLCDmodule(continued)3HingeassemblyN4CameraboardN5G-sensorboardN6LCDbasecoverNLenovopartnumbersofreplacementFRUsorCRUsWhenser

Table3.PartnumbersofFRUs(CRUs)(continued)Czh-Slk75KeyST1CCCYBlackKeySilverFrame25216100Bulgarian75KeyST1CCCYBlackKeySilverFrame25216101India74KeyST1CC

Table3.PartnumbersofFRUs(CRUs)(continued)DC-INCableCN205C10G150047SystemboardMBCN20PN29302G5B20G15028MBCN20PN28302G5B20G15011MBCN20PN28304G5B20G15043M

Table4.PartnumbersofLCDFRUs(continued)6LCDbasecoverLCDCoverCN20P5CB0G15019Chapter3.IdetifyingFRUs(CRUs)27

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Chapter4.RemovingaFRUorCRUGeneralguidelinesWhenremovingorreplacingaFRU,ensurethatyouobservethefollowinggeneralguidelines:1.Donottrytoserviceanycompute

Step3.TurnovertheChromebookagainandthenopentheLCDcover.Step4.Liftthekeyboardbyitsupperedge2andthenslowlyliftitup3untilthekeyboardsocketappears.bFigure

RemovetheuppercaseMakesurethefollowingFRUs(CRUs)havebeenremoved:“Removethekeyboard”onpage29Step1.Prythetworubbersoutoftheirrecesses.Figure6.Pryrubbers

dcFigure8.UnplugtouchpadcableStep6.Removethe9screws5;useascrapcreditcardorasimilarplasticcardtoslidethroughthegroovesbetweentheuppercaseandthebasecove

RemovetheWLAN&BluetoothcombomoduleMakesurethefollowingFRUs(CRUs)havebeenremoved:“Removethekeyboard”onpage29“Removetheuppercase”onpage31Step1.Disco

FirstEdition(June2014)©CopyrightLenovo2014.

RefertoTable3“PartnumbersofFRUs(CRUs)”onpage24tolookuptheLenovopartnumbersofreplacementWLAN&Bluetoothcombomodules.RemovetheLCDmoduleMakesurethefol

ddFigure15.LiftuptheLCDmoduleTable8.Screwspecifications—removingtheLCDmoduleScrewlabelSpecificationsColorTorque3M2.5×4mm,flat-head,nylon-coatedBlack3.7–4

aFigure16.Unplugthedc-incableStep2.Removethetwoscrews2andthenremovethemetalbracket3thatfastensthedc-inconnector.bbcFigure17.Remove2screwsStep3.Removet

dFigure18.Removethedc-inconnectorTable9.Screwspecifications—removingthedc-inconnectorScrewlabelSpecificationsColorTorque2M2×3mm,flat-head,nylon-coatedSil

decFigure20.RemovethebatterypackStep3.Removethescrew4andthenremovethebatterypack5.Table10.Screwspecifications—removingthebatterypackScrewlabelSpecificat

RefertoTable3“PartnumbersofFRUs(CRUs)”onpage24tolookuptheLenovopartnumbersofreplacementspeakers.RemovethesystemboardandtheI/OboardMakesurethefollowing

DisassembletheLCDmoduleTheLCDmoduleasawholeisnotaFRU.ItcontainsFRUsasitscomponents.BeforedisassemblingtheLCDmodule,makesureithasbeendetachedfromthebas

deFigure27.DisconnecttheLCDcableandthetouchmodulecable—thebacksideoftheLCDpanelNote:WhendisconnectingtheLCDcable,peeloffthesticker,openthemetalbracket

RefertoTable4“PartnumbersofLCDFRUs”onpage26tolookuptheLenovopartnumberoftheG-sensorboard.RemovethehingeassemblyandthecameraboardMakesurethefollowingFR

LCDbasecoverChapter4.RemovingaFRUorCRU43

ContentsChapter1.Safetyinformation...1Generalsafety...1Electricalsafety...1Safetyinspectionguide...2Handlingdevicesth

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AppendixA.Features,controls,andconnectorsFigure31.N20pChromebookfeaturesandconnectorsTable14.N20pChromebookfeaturesandconnectorsNo.Featureorconnector1

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AppendixB.LenovopartnumbersofscrewsusedonN20pChromebookTable15.PartnumbersofN20pscrewsScrewdescriptionPartnumberSCREWN20MM22.0D2LK7D5S10G15012SCREWN20

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AppendixC.LenovopartnumbersofacadaptersandpowercordsTable16.PartnumbersforFRUs(CRUs)CRUcategoryPartsdescriptionLenovopartnumberacpoweradapterDeltaADLX

Table16.PartnumbersforFRUs(CRUs)(continued)LongwellLP-71+VCTF+LS-33145000556VOLEXTW15CS3+VCTF+VAC5S145000531lux0019+VCTF0.75/3C+0021145500007LINETEKLS

AppendixD.LabellocationsabdeCFigure32.LabellayoutonthebacksideofthebasecoverTable17.AllbasecoverlabelsLabelLabeldescriptionCountryorregionDimensionsPa

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TrademarksLenovoandthe“lenovo”logoaretrademarksofLenovointheUnitedStates,othercountriesorboth:Othercompany,product,orservicenamesmaybetrademarksorserv

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Chapter1.SafetyinformationThischapterpresentsthefollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouserviceaLenovonotebookcomputer.Generalsa

–Removingorinstallingmainunits•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomertopower-offthewallboxthatsupplies

Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginningofeveryservicetask.Beginthecheckswiththepoweroff,andthe