HardwareMaintenanceManualLenovoB475e
2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.WhenhandlingESD-sensitiveparts:•Keepthepartsinprotectivepackagesu
PartNumber:PrintedinChina(1P)P/N:*1P*
DANGERDANGERDANGERDANGERDANGERChapter1.Safetyinformation5
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Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformationunderAppendixA“Notices”onpage91.ThirdEdition(December2012)©Cop
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Chapter1.Safetyinformation15
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Lasercompliancestatement(multilingualtranslations)Thelasercompliancestatementsinthissectionareprovidedinthefollowinglanguages:•English•Arabic•Brazilia
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Chapter1.Safetyinformation21
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ContentsAboutthismanual...iiiChapter1.Safetyinformation...1Generalsafety...1Electricalsafety...2Safetyinspectiongu
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Chapter1.Safetyinformation25
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Chapter2.ImportantserviceinformationThischapterpresentsthefollowingimportantserviceinformationthatappliestoallmachinetypessupportedbythismanual:•“Stra
•IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUsmaybethecauseoftheerror.Beforereplacingtheadapterordevice,removetheFRUs,onebyone,toseeifthes
Chapter3.GeneralcheckoutThischapterpresentsfollowinginformation:•“Whattodorst”onpage29•“Powersystemcheckout”onpage30Beforeyougotothecheckoutguide,bes
•Diskettedrivedamagecausedbypressureonthediskettedrivecover,foreignmaterialinthedrive,ortheinsertionofadiskettewithmultiplelabels•Damagedorbentdiskett
Note:Noisefromtheacpoweradapterdoesnotalwaysindicateadefect.CheckingoperationalchargingTocheckwhetherthebatterychargesproperlyduringoperation,useadisc
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Chapter4.RelatedserviceinformationThischapterpresentsthefollowinginformation:•“Recoveringthecomputersettings”onpage33•“Passwords”onpage33•“Powermanage
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Ifanyofthesepasswordshasbeenset,apromptforitwillbedisplayedonthescreenwheneverthecomputeristurnedon.Thecomputerdoesnotstartuntilthepasswordisentered.N
Also,whenthetimesetontheresumetimerelapses,thecomputerautomaticallyreturnsfromsleepmodeandresumesoperation.Note:Thecomputerdoesnotacceptanyinputimmedi
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Chapter5.LenovoB475eThischapterpresentsthefollowingproduct-specicservicereferencesandpartsinformation:•“Specications”onpage37•“Statusindicators”onpa
Opticaldrive•12.7mmRamboopticaldriveWirelessfeature•IntegratedwirelessLAN•100/1000MbpsEthernetcommunicationStatusindicatorsThistopicpresentsthesystems
Table1.Statusindicators(continued)IndicatorMeaning5Batterystatusindicator•Blinkingorange(500msoff/1son):Theremainingpowerofthebatteryislessthan5%ofits
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Chapter6.FRUreplacementnoticesThischapterpresentsnoticesrelatedtoremovingandreplacingparts.ReadthischaptercarefullybeforereplacinganyFRU.CRUstatementf
•T orquedriverIfyouhaveatorquescrewdriver,refertotheTorquecolumninthescrewinformationtableforeachstep.•Ensurethatyouusethecorrectscrew.Itisrecommended
Chapter7.RemovingandreplacingaFRUThischapterprovidesinstructionsonhowtoremoveorreplaceaFRU.CRUstatementforcustomers:Youcanresolvesomeproblemswithyourp
AboutthismanualThismanualprovidesserviceandreferenceinformationforthefollowingLenovo®products.MachineMachinetypesLenovoB475e3618,20188Usethismanualtot
Attention:Thesystemboardissensitiveto,andcanbedamagedby,electrostaticdischarge.Beforetouchingit,establishpersonalgroundingbytouchingagroundpointwithon
RemovalstepsofbottomslotcoverLoosenthescrews1aandremovethescrew1b,thenremovethebottomslotcover2.1a21a1bStepScrew(quantity)ColorTorque1aM2×3mm,at-head
RemovalstepsofharddiskdriveassemblyRemovethescrew1.1StepScrew(quantity)ColorTorque1M2×3mm,at-head,nylon-coated(1)Black1.6kgf-cmPullthetabinthedirecti
Removetheharddiskdrivebracketinthedirectionshownbythearrow2.21040OpticaldriveForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage44•“1020Bottomsl
112Note:Ifonlyonememorymoduleisusedonthecomputeryouareservicing,thecardmustbeinstalledinSLOT-0(a:lowerslot),butnotinSLOT-1(b:upperslot).abWheninstalli
RemovalstepsofPCIExpressMiniCardforwirelessLANDisconnectthecablefromthecardusingtheremovaltoolantennaRFconnector(P/N:08K7159)orpickupthecablewithyour
RemovalstepsofbackupbatteryDANGERUseonlythebatteryspeciedinthepartslistforyourcomputer.Anyotherbatterycouldigniteorexplode.Insertascrewdriverintotheb
Pushhardinthedirectionshownbythearrows2tounlatchtherearedgeofthekeyboard.22Thekeyboardwillopenupslightly3.3Chapter7.RemovingandreplacingaFRU51
Carefullyliftthekeyboarduntilyoucanseehowitisconnected.Holdthekeyboardabovethecomputer4,andthendetachtheconnectorinthedirectionshownbythearrows5and6.4
RemovalstepsofkeyboardbezelRemovescrews1and2thatsecurethekeyboardbezel.11111112221111StepScrew(quantity)ColorTorque1M2.5×7mm,at-head,nylon-coated(11)
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Detachtheconnectors.76541098Wheninstalling:Makesurethattheconnectorsareattachedrmlytothesystemboard.Removethekeyboardbezel.1111111111111111111254Hard
1100LEDboardandpowerboardForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage44•“1020Bottomslotcover”onpage44•“1030Harddiskdrive”onpage45•“1040Op
1110MicrophoneassemblyForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage44•“1020Bottomslotcover”onpage44•“1030Harddiskdrive”onpage45•“1040Optic
•“1040Opticaldrive”onpage47•“1050Memorymodules”onpage47•“1060PCIExpressMiniCardforwirelessLAN”onpage48•“1070Backupbattery”onpage49•“1080Keyboard”onpag
RemovetheI/Oboard4.41130SystemboardassemblyImportantnoticesforhandlingthesystemboard:Whenhandlingthesystemboard,bearthefollowinginmind:•Becarefulnotto
RemovalstepsofsystemboardRemovethescrew1.Detachtheconnectors.65748321StepScrew(quantity)ColorTorque1M2×5mm,at-head,nylon-coated(1)Black3.0kgf-cmWheni
Removethesystemboardinthedirectionshownbythearrow9.91140LCDunitForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage44•“1020Bottomslotcover”onpage
RemovalstepsofLCDunitReleasetheantennacablesfromthecableguides.Thenremovethescrews2.1111StepScrew(quantity)ColorTorque2M2×5mm,at-head,nylon-coated(4)
RemovetheLCDunitinthedirectionshownbythearrow2.21150ThermalfanassemblyForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage44•“1020Bottomslotcover
RemovalstepsofthermalfanassemblyDetachtheconnectorinthedirectionshownbythearrow1.1Wheninstalling:Makesurethattheconnectorisattachedrmly.Loosenthescre
Chapter1.SafetyinformationThischapterpresentsthefollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouserviceaLenovonotebookcomputer.•“General
Liftthethermalfanassemblyinthedirectionshownbythearrow5.Attention:Becarefulnottodamagetheconnector.5Attention:Donothandlethethermalfanassemblyroughly.
1160SpeakerassemblyForaccess,removetheseFRUsinorder:•“1010Batterypack”onpage44•“1020Bottomslotcover”onpage44•“1030Harddiskdrive”onpage45•“1040Opticald
RemovalstepsofDC-insubcardRemovethescrews1,andthenremovetheDC-insubcardinthedirectionshownbythearrow2.1StepScrew(quantity)ColorTorque1M2×3mm,at-head,
ApplyinglabelstothebasecoverThenewbasecoverisshippedwithakitcontaininglabelsofseveralkinds.Applythoselabelslistedwhenyoureplacethebasecover.Forthelabe
•“1040Opticaldrive”onpage47•“1050Memorymodules”onpage47•“1060PCIExpressMiniCardforwirelessLAN”onpage48•“1070Backupbattery”onpage49•“1080Keyboard”onpag
RemovetheLCDfrontbezelinthedirectionshownbythearrows2.2222Wheninstalling:Makesurethatallthelatchesareattachedrmly.Thensecurethebezelwiththescrews.202
RemovalstepsofintegratedcameraRemovetheintegratedcamerafromtheLCDcoverasshowninthefollowingillustration.Note:Theintegratedcameraisstuckonthetopcentero
RemovalstepsofLCDpanelandLCDcableRemovethescrews1.Disconnecttheintegratedcameraconnectorinthedirectionshownbythearrow2.ThenlifttheLCDpanelinthedirecti
RemovalstepsofhingesPeelofftheadhesivetapeanddetachtheconnector.67Wheninstalling:Makesurethattheconnectorisattachedrmly.2040AntennaassemblyForaccess,
ReleasetheantennacablesfromthecableguidesoftheLCDrearcoverassemblyandfromthehingesinthedirectionshownbythearrows2.22Cablerouting:Routetheantennacables
ElectricalsafetyObservethefollowingruleswhenworkingonelectricalequipment.Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescovere
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Chapter8.LocationsThischapterintroducesthelocationsofthecomputerhardwarecomponents.Frontview1245678910121314415311Figure1.LenovoB475efrontview1Integra
Bottomview1238659104711Figure2.LenovoB475ebottomview1Batterylatch(manual)7VGAport2Batterypack8Ethernetconnector3Batterylatch(spring-loaded)9HDMIport(o
Chapter9.PartslistThischaptercontainsthefollowinglistsoftheserviceparts.•“Overall”onpage78•“LCDFRUs”onpage80•“Keyboard”onpage82•“Miscellaneousparts”on
Overall14131211910c12345a6b78Table3.Partslist—OverallNo.FRU(Overall)FRUNo.CRUID1LCDunit(see“LCDFRUs”onpage80)2LB47LEDBOARDW/CABLE31049001N3LB475BUpper
Table3.Partslist—Overall(continued)No.FRU(Overall)FRUNo.CRUID4Battery,2200mA6cell,48Wh3S2PSMP/LGL09M6Y023S2P48Whbty(LH)Comm01+EUlable121500091*4Batter
Table3.Partslist—Overall(continued)No.FRU(Overall)FRUNo.CRUID11RAM,DDRIII16002GB,Samsung,M471B5773DH0-CK0DDR316002GB11200340*11RAM,DDRIII16002GB,Samsu
1234567Table4.Partslist-LCDNo.FRUFRUNo.CRUID1LB475BLCDBezelW/CameraHole90201262N1LB475BLCDBezelWO/CameraHole90201263N2LB47LLCDHingeL&R6K.4VDCS.001
Table4.Partslist-LCD(continued)No.FRUFRUNo.CRUID7LEDpanel14.0HDWedgeGlossyLTN140AT26-L0118200229N7LEDpanel14.0HDWedgeGlossyLP140WH4-TLN118200156N7LEDp
Table5.Partslist-Keyboard(Dafon)(continued)LanguageFRUNO.(Windows7)FRUNO.(Windows8)CRUIDU.S.English2520443225209332NU.S.English(International,withaEur
–Usecaution;donotbecomeavictimyourself.–Switchoffpower.–Sendanotherpersontogetmedicalaid.SafetyinspectionguideThepurposeofthisinspectionguideistoassis
Table7.Partslist-Keyboard(Chicony)LanguageFRUNO.(Windows7)FRUNO.(Windows8)CRUIDArabic2520441725209317NBelgian2520442425209324NBrazilianPortuguese25204
MiscellaneouspartsTable8.Partslist-MiscellaneouspartsFRUFRUNo.CRUID(a)LB47LODDBracket33.4VD04.00190200213N(b)LA47ODDBEZELTRAYINRAMBO60.4KZ06.001310476
Table11.Partslist-3-pinpowercords(Linetek)(continued)CountryorregionFRUNo.CRUIDIndian•LINETEKPE-361+H05VV-F+LS151m145000592*Israel•LINETEKLS15+H03VV-F
Table12.Partslist-3-pinpowercords(Longwell)(continued)CountryorregionFRUNo.CRUIDIsrael•LongwellLP-41+H03VV-F+LS-181m145000563*Italy•LongwellLP-22+H03V
Table13.Partslist-3-pinpowercords(Volex)(continued)CountryorregionFRUNo.CRUIDItaly•VOLEXIT10S3+HO3VV-F+VAC5S1m145000535*Japan•VOLEXVAC5S+VCTF+M7551m14
Table14.Partslist-2-pinpowercords(Linetek)(continued)CountryorregionFRUNo.CRUIDKorea•LINETEKLPE03A+H03VVH2-F+LS71m145500025*Taiwan•LINETEKLP51A+VCTFK0
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AppendixA.NoticesLenovomaynotoffertheproducts,services,orfeaturesdiscussedinthisdocumentinallcountries.ConsultyourlocalLenovorepresentativeforinformat
ElectronicemissionsnoticesForelectronicemissioninformationonClassBdigitaldevices,refertothecorrespondinginformationintheUserGuide.EUcontact:Lenovo,Ein
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