Lenovo A540 All In One Manual do Utilizador

LenovoA540/A740HardwareMaintenanceManualMachineTypes:F0AN[A540];F0AM[A740]

Observethefollowingruleswhenworkingonelectricalequipment.Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmateri

–Switchoffpower.–Sendanotherpersontogetmedicalaid.SafetyinspectionguideTheintentofthisinspectionguideistoassistyouinidentifyingpotentialhazardsposedby

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.•Avoidcontactwithotherpeoplewhilehandlingthepart.•Wearagroundedwriststrapagainstyo

ToConnectToDisconnect1.TurneverythingOFF.2.First,attachallcablestodevices.3.Attachsignalcablestoconnectors.4.Attachpowercordstooutlet.5.TurndeviceON.1

CAUTION:Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupplydonotturnofftheelectricalcurrentsuppliedtothedevice.Thedevicealsomighthavemor

Chapter3.GeneralinformationThischapterprovidesgeneralinformationthatappliestoallcomputermodelscoveredbythismanual.SpecificationsThissectionliststhephys

10LenovoA540/A740HardwareMaintenanceManual

Chapter4.GeneralCheckoutAttention:Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartupsequencemayhavebeenchanged.Beextremelyc

12LenovoA540/A740HardwareMaintenanceManual

Chapter5.UsingtheSetupUtilityTheSetupUtilityprogramisusedtoviewandchangetheconfigurationsettingsofyourcomputer,regardlessofwhichoperatingsystemyouareus

AdministratorPasswordSettinganAdministratorPassworddetersunauthorizedpersonsfromchangingconfigurationsettings.Y oumightwanttosetanAdministratorPassword

TosetaPower-OnPassword,dothefollowing:1.StarttheLenovoBIOSSetupUtilityprogram(See”StartingtheLenovoBIOSSetupUtilityprogram”onpage13.)2.FromtheSecurity

SelectATADeviceSetup,presstheEnterkey,thenselectSATAMode.SelectAudioSetup,presstheEnterkey,thenselectOnboardAudioController.SelectNetworkSetup,pressth

a.Ifyoudonotwanttosavethesettings,selectDiscardchangesandExitfromthemenu.b.Ifyouhavechangedthesesettingsandwanttoreturntothedefaultsettings,selectLoad

18LenovoA540/A740HardwareMaintenanceManual

Chapter6.Symptom-to-FRUIndexTheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedfirst.AlwaysbeginwithChapter4,“GeneralC

POSTerrorcodesEachtimeyouturnthecomputeron,itperformsaseriesofteststocheckthatthesystemisoperatingcorrectlyandthatcertainoptionsareset.Thisseriesoftes

Chapter7.ReplacinghardwareAttention:Donotremovethecomputercoverorattemptanyrepairbeforereadingthe“Importantsafetyinformation”intheSafetyandWarrantyGui

ReplacingthekeyboardandmouseAttention:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.ToreplacethekeyboardandmouseStep1.Remo

Step2.Locatetheconnectorforthepowercord.Referto“Rearview” .Step3.Disconnectthefailingpowercordandadapterfromthecomputerandconnectthenewpowercordandada

LenovoA540/A740HardwareMaintenanceManualMachineTypes:F0AN[A540];F0AM[A740]

Step5.Returnthecomputertoanuprightposition,thenliftthebasecoverupandslideitoutasshown.Step6.Toreattachthebasecover:a.Lineupthebasecoverwiththebase,sli

Step5.Removethe4screwsthatsecuretheharddiskdrivetothemotherboard.Step6.Disconnectthedataandpowercablefromtheharddiskdrive.Chapter7.Replacinghardware25

Step7.Removethe4screwsthatsecuretheharddiskdrivetothebracket,thenseparatetheharddiskdrivefromthebracket.Step8.Installthenewharddiskdriveasfollows:a.Se

Step5.Pushoutthelatchesonbothsidesofthememorysockettoreleasethememorymodule.Gentlypullthememorymoduleupwardtoremoveitfromitssocket.Step6.Alignthenewme

Step7.Liftthesystemfanuptoremoveit.Step8.Lineupthenewsystemfan,thensecureittotheheat-sinkandconnectthenewpowercabletothemotherboard.Step9.Reattachtheb

Step7.Removetheheat-sinkbyliftingitup.Attention:Placetheheat-sinkupsidedownonaflatsurfacetopreventthermalgreasefromcontaminatingothercomponents.Attenti

Step6.Removethe4screwsthatsecurethespeakersystemtothemotherboard.Step7.Detachthespeakerfromthechassis.Step8.Toinstallthenewspeakersystem:a.Attachthene

Step9.Removethe3screwsthatsecurethemotherboardtothechassisandslideitoutasshown.Step10.Toinstallthenewmotherboard:a.Installthememorymoduletotheconnecto

Step5.DisconnectthetouchandLEDpanelcablesfromtheconnectorsonthemotherboard.Step6.Removethe6screwsthatsecurethehingetothechassis1,thenraisethehingetore

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperatingsystem,andturnoffthecomputerandallattacheddevices.Step2.Unplugallp

FirstEdition(March2014)6th©CopyrightLenovo2014.LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwarearedeliveredpursuantaGeneralServicesAdministration“GSA

Step7.SlidetheLEDpanelupwardfromthebottom(with“Lenovo”logo)ofthepanel.34LenovoA540/A740HardwareMaintenanceManual

Step8.OpenuptheLEDpanelfromthebottom1,removethe2screwsthatsecurethetransformboardtotherearcover2,andthendisconnectthe2cablesfromthetransformboard.3Ste

Step6.Removetherearcover.Referto“Removingtherearcover”.Step7.Removethe2screwsthatsecurethetransformboardtotherearcover,andthenliftituptoremoveit.Step8

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)cables,andanyothercablesthatareconnectedtothecomputer.Referto“L

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)cables,andanyothercablesthatareconnectedtothecomputer.Referto“L

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperatingsystem,andturnoffthecomputerandallattacheddevices.Step2.Unplugallp

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperatingsystem,andturnoffthecomputerandallattacheddevices.Step2.Unplugallp

Note:Itmaybehelpfultoplacethecomputerface-downonasoftflatsurfaceforthisprocedure.Lenovorecommendsthatyouuseablanket,towel,orothersoftclothtoprotectthec

Step12.Reattachthebasecoverandsecureitwiththescrews.A540FRUlistsThischapterliststheinformationonthefieldreplaceableunits(FRUs)forA540All-In-Onecomputer

CA540W8PI3-4158UMAW/TV5B20F63000NCA540W8PI5-4258UMAW/TV5B20F62991NCA540W8PI7-4558UMAW/TV5B20F62980NCA540W8PI3-4158DISW/OTV5B20F62969NCA540W8PI5-4258DI

ContentsChapter1.Aboutthismanual...1ImportantSafetyInformation...1Chapter2.Safetyinformation...3Generalsafety...3Electricals

802.11AC_BT4.0RTL8821AU-CG1x1ac+BT4.0ComboUSB11202701N802.11AC_BT4.0RTL8821AU-CG1x1ac+BT4.0ComboUSB11202701NRTL8723AS-VAU1x1bgnBT4.0ComboUSB20200052NR

良维黑色单头1.8mC13IRAM电源线®310369801豪利士1.8米C13拉美制电源线310495151立讯(博硕)1.8米C13拉美制电源线315028691良维黑色单头1.8mC13Brazil电源线®310387841豪利士1.8米C13巴西制电源线310495131立讯(博硕)1.8米

LiteonSK-8861(BE-EN)2.4GKB-Metal8252160392LiteonSK-8861(US-EU)2.4GKB-Metal8252160402LiteonSK-8861(CH)2.4GKB-Metal8SD50F658162LiteonZTM6002.4GMouse(WW)

Attention:BesuretoreadandunderstandallthesafetyinformationbeforereplacinganyFRUs.Notes:FRUsthathavea1or2intheCRUcolumnareCustomerReplaceableUnits(CRUs

BDPLANARCA740W8PI7-4558DISQW/OTV5B20F65674NBDPLANARCA740W8PI3-4158DISQW/TV5B20F65667NBDPLANARCA740W8PI5-4258DISQW/TV5B20F65660NBDPLANARCA740W8PI7-4558

PhilipsWin8IRWhiteController888900017NPhilipsIRreceiver888900019NRemoterRemoterPhilipsWin7IRreceiver(R)888010662NDVB-TAvermediaH334DVB-TMiniTVCard1120

立讯(博硕)1.8米C13韩制电源线315028701Longwell1.8MItalyC13powercord®310397261豪利士1.8米C13意制电源线310495121立讯(博硕)1.8米C13意大利电源线315028641Longwell1.8MDenmarkC13powercord®

COVERRearCA740W/LOGO5CB0F65661NSpeakerA540Speaker90205401NHINGECA7405H50F65671NCOVERUpper,C,A540,W/TV5CB0F63293NCOVERUpper,C,A540,W/OTV5CB0F63300NCOVE

52LenovoA540/A740HardwareMaintenanceManual

Chapter8.GeneralinformationThischapterprovidesgeneralinformationthatappliestoallcomputermodelscoveredbythismanual.AdditionalServiceInformationThischap

ivLenovoA540/A740HardwareMaintenanceManual

Chapter1.AboutthismanualThismanualcontainsserviceandreferenceinformationforLenovoA540/A740computerslistedonthecover.Itisintendedonlyfortrainedservicer

2LenovoA540/A740HardwareMaintenanceManual

Chapter2.SafetyinformationThischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.GeneralsafetyFollowtheserulestoen