B4366

Lenovo B4366 Hardware Maintenance Manual

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HardwareMaintenanceManual
LenovoB490,B4301,B4302,B4303,B4305,B4306,B4307,B4308,
B4309,B4310,B4311,B4312,B4315,B4316,B4317,B4318,B4319,
B4320,B4321,B4322,B4323,B4325,B4326,B4327,B4328,B4329,
B4330,B4331,B4332,B4333,B4335,B4336,B4337,B4338,B4339,
B4360,B4361,B4362,B4363,B4365,B4366,B4367,B4368,B4369,
B4370,B4371,B4372,B4375,B4376,B4377,andB4378
Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage95
.
ThirdEdition(January2013)
©CopyrightLenovo2012,2013.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSAcontract,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)................19
Chapter2.Importantservice
information..............27
StrategyforreplacingFRUs.........27
Strategyforreplacingaharddiskdrive...28
Importantnoticeforreplacingasystem
board................28
ImportantinformationaboutreplacingRoHS
compliantFRUs..............28
Chapter3.Generalcheckout.....29
Whattodorst..............29
Powersystemcheckout...........30
Checkingtheacpoweradapter......30
Checkingoperationalcharging......31
Checkingthebatterypack........31
Chapter4.Relatedservice
information..............33
Recoveringthecomputersettings.......33
Passwords................33
Power-onpassword...........34
Supervisorpassword..........34
Powermanagement............34
Screenblankmode...........34
Sleepmode..............34
Hibernationmode...........35
Chapter5.Lenovoproduct
information..............37
Specications...............37
Statusindicators..............38
Fnkeycombinations............39
Chapter6.FRUreplacement
notices................41
Screwnotices...............41
Chapter7.Removingandreplacinga
FRU..................43
Generalguidelines.............43
1010Batterypack.............44
1020Bottomslotcover...........44
1030Opticaldrive.............45
1040Memorymodules...........46
1050Harddiskdriveassembly........47
1060PCIExpressMiniCardforwirelessLAN..49
1070mSATAsolid-statedrive.........50
1080Backupbattery............51
1090Keyboard..............51
1100Keyboardbezel............54
1110LEDboard..............56
1120Powerboard.............57
1130Microphoneassembly.........58
1140Mediacardreaderslotboard.......59
1150SystemboardassemblyandUSBboard..60
1160Thermalmodule............62
1170Microprocessor............65
1180LCDunit...............66
1190Speakerassembly...........68
1200DC-inconnectorandbasecover.....69
2010LCDfrontbezel............71
2020Camera...............72
2030LCDpanel,LCDcable,andhinges....73
2040AntennaassemblyandLCDrearcover...75
Chapter8.Locations.........77
Frontview................77
Right-sideview..............78
Bottomandleft-sideview..........78
Chapter9.Partslist..........79
Overall..................80
LCDFRUs................84
Keyboard.................86
Miscellaneousparts............89
acpoweradapters.............89
Powercords...............91
AppendixA.Notices..........95
Electronicemissionsnotices.........96
Trademarks................96
©CopyrightLenovo2012,2013
i
iiHardwareMaintenanceManual
Aboutthismanual
ThismanualprovidesserviceandreferenceinformationforthefollowingLenovo
®
products.
Machine
Machinetype(MT)
LenovoB490,B4301,B4302,B4303,B4305,B4306,
B4307,B4308,B4309,B4310,B4311,B4312,B4315,
B4316,B4317,B4318,B4319,B4320,B4321,B4322,
B4323,B4325,B4326,B4327,B4328,B4329,B4330,
B4331,B4332,B4333,B4335,B4336,B4337,B4338,
B4339,B4360,B4361,B4362,B4363,B4365,B4366,
B4367,B4368,B4369,B4370,B4371,B4372,B4375,
B4376,B4377,andB4378
3756,3772,20205,20207
Usethismanualtotroubleshootproblems.
Themanualisdividedintothefollowingsections:
Thecommonsectionsprovidegeneralinformation,guidelines,andsafetyinformationrequiredfor
servicingcomputers.
Theproduct-specicsectionincludesservice,reference,andproduct-specicpartsinformation.
Important:
ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithLenovoproducts.Use
thismanualtotroubleshootproblemseffectively.
BeforeservicingaLenovoproduct,besuretoreadalltheinformationunderChapter1“Safety
information”onpage1andChapter2“Importantserviceinformation”onpage27.
©CopyrightLenovo2012,2013
iii
ivHardwareMaintenanceManual
Chapter1.Safetyinformation
Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea
LenovoNotebook.
“Generalsafety”onpage1
“Electricalsafety”onpage2
“Safetyinspectionguide”onpage3
“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3
“Groundingrequirements”onpage4
“Safetynotices(multilingualtranslations)”onpage4
“Lasercompliancestatement(multilingualtranslations)”onpage19
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.
©CopyrightLenovo2012,2013
1
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.Youshouldusegoodjudgmenttoidentifypotential
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.
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.Youcanusecoaxorconnector-outsideshellsonthesesystems.
Usetheroundgroundprongoftheacplugonac-operatedcomputers.
Groundingrequirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.
Safetynotices(multilingualtranslations)
Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:
English
Arabic
BrazilianPortuguese
French
German
Hebrew
Japanese
Korean
Spanish
TraditionalChinese
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