Lenovo B50-70 Specification

Category
Notebooks
Type
Specification

This manual is also suitable for

Lenovo
B50-30/B50-30 Touch/
B50-45/B50-70
Hardware
Maintenance
Manual
Note:
Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
under“Notices”onpage83.
First Edition (April 2014)
© Copyright Lenovo 2014. All rights reserved.
LENOVOproducts,data,computersoftware,andserviceshavebeendevelopedexclusivelyatprivate
expenseandaresoldtogovernmentalentitiesascommercialitemsasdefinedby48C.F.R.2.101with
limitedandrestrictedrightstouse,reproductionanddisclosure.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:Ifproducts,data,computersoftware,orservicesare
deliveredpursuantaGeneralServicesAdministration“GSA”contract,use,reproduction,ordisclo
sureissubjecttorestrictionssetforthinContractNo.GS35F05925.
©2014Lenovo
iii
About this manual........................................iv
Safety information.........................................1
Generalsafety ...................................................... 2
Electricalsafety.................................................... 3
Safetyinspectionguide ...................................... 5
Handlingdevicesthataresensitivetoelectro
staticdischarge .................................................... 6
Groundingrequirements ................................... 6
Safetynotices:multilingualtranslations.......... 7
Lasercompliancestatement............................. 14
Important service information ...................16
Strategyforreplac ingFRUs............................. 16
Strategyforreplacingaharddiskdrive .. 17
Importantnoticeforreplacingasystem
board ............................................................. 17
ImportantinformationaboutreplacingRoHS
compliantFRUs ................................................. 18
General checkout........................................19
Whattodofirst.................................................. 20
Powersystemcheckout .................................... 21
CheckingtheACadapter........................... 21
Checkingoperationalcharging................. 21
Checkingthebatterypack ......................... 22
Related service information.......................23
RestoringthefactorycontentsbyusingRecov
eryDiscSet......................................................... 23
Passwords........................................................... 24
Poweronpassword.................................... 24
Harddiskpassword ................................... 24
Supervisorpassword .................................. 24
Powermanagement .......................................... 25
Screenblankstate........................................ 25
Puttingthecomputertosleeporshuttingit
down ............................................................. 25
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
27
Specifications ..................................................... 27
Statusindicators ................................................ 29
Fnkeycombinations......................................... 30
Hotkeys............................................................... 30
FRUreplacementnotices.................................. 31
Screwnotices................................................ 31
RemovingandreplacinganFRU.................... 32
1010Batterypack......................................... 33
1020Opticaldrive ....................................... 34
1030Bottomslotcover ................................36
1040Harddiskdrive................................... 37
1050DIMM................................................... 39
1060PCIExpressMiniCardforwireless
LAN/WAN....................................................40
1070Keyboard..............................................41
1080Keyboardbezel ................................... 43
1090Fingerprintandpowerboard ..........45
1100USBboardandODDboard...............47
1110Ledboard.............................................48
1120Dockingboard(onselectmodels).... 49
1130Systemboard.......................................50
1140Fanandheatsinkassembly ..............53
1150Speakersandbatteryboard............... 54
1160LCDunitandbasecover ................... 55
1170LCDfrontbezel................................... 59
1180LCDpanel............................................ 60
1190LCDhinges .......................................... 62
1200Antenna,LCDcable,andintegrated
camera ........................................................... 63
Locations ............................................................. 65
Frontview.....................................................65
Rightsideview ............................................ 66
Bottomandleftsideview ..........................67
Partslist............................................................... 68
Overall...........................................................69
LCDFRUs.....................................................73
Keyboard.......................................................75
Miscellaneousparts..................................... 78
ACadapters.................................................. 79
Screws............................................................ 79
Powercords.................................................. 80
Notices .........................................................83
Trademarks......................................................... 84
Contents
iv
Thismanualcontainsserviceandreferenceinformationforthefollowing
Lenovoproduct:
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
Usethismanualtotroubleshootproblems.
Themanualisdividedintothefollowingsections:
Thecommonsectionsprovidegeneralinformation,guidelines,andsafety
informationrequiredforservicingcomputers.
Theproductspecificsectionincludesservice,reference,andproductspecific
partsinformation.
About this manual
Important:
Thismanualisintendedonlyfortrainedservicerswhoarefamiliarwith
Lenovoproducts.Usethismanualtotroubleshootproblemseffectively.
BeforeservicingaLenovoproduct,makesuretoreadalltheinformation
under“Safetyinformation”onpage1and“Importantserviceinformation”
onpage16.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
1
Thischapterpresentsthefollowingsafetyinformationthatyouneedtoget
familiarwithbeforeyouserviceaLenovocomputer:
“Generalsafety”onpage2
“Electricalsafety”onpage3
“Safetyinspectionguideonpage5
“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage6
“Groundingrequirements”onpage6
“Safetynotices:multilingualtranslations”onpage7
“Lasercompliancestatement”onpage14
Safety information
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
2
Followthefollowingrulestoensuregeneralsafety:
Observeagoodhousekeepingintheareawherethemachinesareputduring
andafterthemaintenance.
Whenliftinganyheavyobject:
1. Makesurethatyoucanstandsafelywithoutslipping.
2. Distributetheweightoftheobjectequallybetweenyourfeet.
3. Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempt
toliftit.
4. Liftitbystandingorpushingupwithyourlegmuscles;thisactioncould
avoidthestrainfromthemusclesinyourback.Donotattempttoliftany
objectthatweighsmorethan 16kg(35lb)orthatyouthinkistooheavyfor
you.
Donotperformanyactionthatcauseshazardstothecustomer,orthatmakes
themachineunsafe.
Beforeyoustartthemachine,makesurethatotherservicerepresentatives
andthecustomerarenotinahazardousposition.
Pleaseremovecoversandotherpartsinasafeplace,awayfromallpersonnel,
whileyouareservicingthemachine.
Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripit
over.
Donotwearlooseclothingthatcanbetrappedinthemovingpartsofthe
machine.Makesurethatyoursleevesarefastenedorrolledupaboveyour
elbows.Ifyourhairislong,fastenit.
Inserttheendsofyournecktieorscarfinsideclothingorfastenitwiththe
nonconductiveclip,about8centimeters(3inches)fromtheend.
Donotwearjewelry,chains,metalframeeyeglasses,ormetalfastenersfor
yourclothing.
Attention:Metalobjectsaregoodelectricalconductors.
Wearsafetyglasseswhenyouarehammering,drilling,soldering,cutting
wire,attachingsprings,usingsolvents,orworkinginanyotherconditions
thatmaybehazardoustoyoureyes.
Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.
Replaceanysafetydevicethatiswornordefective.
Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.
Fanlouversonthemachinehelptopreventtheoverheatingofinternal
components.Donotobstructfanlouversorcoverthemwithlabelsor
stickers.
General safety
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
3
Observethefollowingruleswhenworkingonelectricalequipments.
Findtheroomemergencypoweroff(EPO)switch,disconnectingswitch,or
electricaloutlet.Ifanelectricalaccidentoccurs,youcanthenoperatethe
switchorunplugthepowercordquickly.
Donotworkaloneunderhazardousconditionsorneartheequipmentthat
hashazardousvoltages.
Disconnectallpowerbefore:
Performingamechanicalinspection
Workingnearpowersupplies
Removingorinstallingmainunits
Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyou
cannotunplugit,askthecustomertopoweroffthewallboxthatsupplies
powertothemachine,andtolockthewallboxintheoffposition.
Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observe
thefollowingprecautions:
Ensurethatanotherperson,familiarwiththepoweroffcontrols,isnear
you.
Attention:Anotherpersonmustbetheretoswitchoffthepower,if
necessary.
Useonlyonehandwhenworkingwithpoweredonelectricalequipment;
keeptheotherhandinyourpocketorbehindyourback.
Attention:Anelectricalshockcanoccuronlywhenthereisacomplete
circuit.Byobservingtheaboverule,youmaypreventacurrentfrom
passingthroughyourbody.
Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobe
leadsandaccessoriesforthattester.
Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulate
youfromgroundssuchasmetalfloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;
instructionsfortheseprecautionsareinthesafetysectionsofmaintenance
information.Beextremelycarefulwhenyoumeasurethehighvoltages.
Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperational
condition.
Donotusewornorbrokentoolsandtesters.
Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkit
tomakesurethatithasbeenpoweredoff.
Electrical safety
Important:
Useonlyapprovedtoolsandtestequipments.Somehandtoolshave
handlescoveredwithasoftmaterialthatdoesnotinsulateyouwhen
workingwithliveelectricalcurrents.
Manycustomershaverubberfloormatsneartheirmachinesthatcontain
smallconductivefiberstodecreaseelectrostaticdischarges.Donot usesuch
kindofmattoprotectyourselffromelectricalshock.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
4
Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesof
thesehazardsaremoistfloors,nongroundedpowerextensioncables,power
surges,andmissingsafetygrounds.
Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplastic
dentalmirror.Thesurfaceisconductive;suchtouchingcancausepersonal
injuryandmachinedamage.
Donotservicethefollowingpartswiththepoweronwhentheyareremoved
fromtheirnormaloperatingplacesinamachine:
Powersupplyunits
Pumps
Blowersandfans
Motorgenerators
andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)
Ifanelectricalaccidentoccurs:
Usecaution:donotbecomeavictimyourself.
Switchoffthepower.
Sendthevictimtogetmedicalaid.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
5
Thepurposeofthisinspectionguideistoassistyouinidentifyingpotential
unsafeconditions.Aseachmachinewasdesignedandbuilt,requiredsafety
itemswereinstalledtoprotectusersandservicepersonnelfrominjury.This
guideaddressesonlythoseitems.Youshouldusegoodjudgmenttoidentify
potentialsafetyhazardsduetoattachmentofnonLenovofeaturesoroptionsnot
coveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowseriousthe
apparenthazardcouldbeandwhetheryoucancontinuewithoutfirstcorrecting
theproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
Electricalhazards,especiallyprimarypower(primaryvoltageontheframe
cancauseseriousorfatalelectricalshock)
Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor
Mechanicalhazards,suchaslooseormissinghardware
Todeterminewhetherthereareanypotentialunsafeconditions,usethe
followingchecklistatthebeginningofeveryservicetask.Beginthecheckswith
thepoweroff,andthepowercorddisconnected.
Checklist:
1. Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2. Turnoffthecomputer.Disconnectthepowercord.
3. Checkthepowercordfor:
a. Athirdwiregroundconnectoringoodcondition.Useametertomeasure
thirdwiregroundcontinuityfor0.1ohmorlessbetweentheexternal
groundpinandtheframeground.
b. Thepowercordshouldbethetypespecifiedinthepartslist.
c. Insulationmustnotbefrayedorworn.
4. Checkforcrackedorbulgingbatteries.
5. Removethecover.
6. CheckforanyobviousnonLenovoalterations.Usegoodjudgmentastothe
safetyofanynonLenovoalterations.
7. Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,
contamination,waterorotherliquids,orsignsoffireorsmokedamage.
8. Checkforworn,frayed,orpinchedcables.
9. Checkthatthepowersupplycoverfasteners(screwsorrivets)havenotbeen
removedortamperedwith.
Safety inspection guide
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
6
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbe
consideredsensitivetoelectrostaticdischarge(ESD).ESDdamagecanoccur
whenthereisadifferenceinchargebetweenobjects.ProtectagainstESDdamage
byequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
WhenhandlingESDsensitiveparts:
Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
Avoidcontactwithotherpeople.
Wearagroundedwriststrapagainstyourskintoeliminatestaticonyour
body.
Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeand
retainsachargeevenwhenyouarewearingawriststrap.
Usetheblacksideofagroundedworkmattoprovideastaticfreework
surface.ThematisespeciallyusefulwhenhandlingESDsensitivedevices.
Selectagroundingsystem,suchasthoselistedbelow,toprovideprotection
thatmeetsthespecificservicerequirement.
AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen
wireground.
Whenworkingonadoubleinsulatedorbatteryoperatedsystem,usean
ESDcommongroundorreferencepoint.Youcanusecoaxorconnector
outsideshellsonthesesystems.
Usetheroundgroundprongoftheacplugonacoperatedcomputers.
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrect
systemfunction.Propergroundingoftheelectricaloutletcanbeverifiedbya
certifiedelectrician.
Handling devices that are sensitive to electrostatic discharge
Notes:
1. UseproductspecificESDprocedureswhentheyexceedthe
requirementsnotedhere.
2. MakesurethattheESDprotectivedevicesyouusehavebeencertified
(ISO9000)asfullyeffective.
Notes:
TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebut
notnecessary.
Grounding requirements
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
7
ThesafetynoticesinthissectionareprovidedinEnglish,French,German,
Hebrew,Italian,Japanese,andSpanish.
Safety notices: multilingual translations
Safety notice 1
BeforethecomputerispoweredonafterFRUreplacement,makesureall
screws,springs,andothersmallpartsareinplaceandarenotleftloose
insidethecomputer.Verifythisbyshakingthecomputerandlisteningfor
rattlingsounds.Metallicpartsormetalflakescancauseelectricalshorts.
Avantderemettrel’ordinateursoustensionaprèsremplacementd’uneunité
enclientèle,vérifiezquetouslesressorts,visetautrespiècessontbienen
placeetbienfixées.Pourcefaire,secouezl’unitéetassurezvousqu’aucun
bruitsuspectneseproduit.Despiècesmétalliquesoudescopeauxdemétal
pourraientcauseruncourtcircuit.
BevornacheinemFRUAustauschderComputerwiederangeschlossen
wird,mußsichergestelltwerden,daßkeineSchrauben,Federnoderandere
KleinteilefehlenoderimGehäusevergessenwurden.DerComputermuß
geschütteltundaufKlappergeräuschegeprüftwerden.Metallteileoder
splitterkönnenKurzschlüsseerzeugen.
Primadiaccenderel’elaboratoredopocheéstataeffettuatalasostituzionedi
unaFRU,accertarsichetutteleviti,lemolleetuttelealtripartidipiccole
dimensionisianonellacorrettaposizioneenonsianosparseall’interno
dell’elaboratore.Verificareciòscuotendol’elaboratoreeprestando
attenzioneadeventualirumori;eventualipartiopezzettimetallicipossono
provocarecortocircuitipericolosi.
AntesdeencenderelsistemadespuesdesustituirunaFRU,compruebeque
todoslostornillos,muellesydemáspiezaspequeñasseencuentranensu
sitioynoseencuentransueltasdentrodelsistema.Compruébeloagitandoel
sistemayescuchandolosposiblesruidosqueprovocarían.Laspiezas
metálicaspuedencausarcortocircuitoseléctricos.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
8
Safety notice 2
DANGER
Somestandbybatteriescontainasmallamountofnickelandcadmium.Do
notdisassembleastandbybattery,rechargeit,throwitintofireorwater,or
shortcircuitit.Disposeofthebatteryasrequiredbylocalordinancesor
regulations.Useonlythebatteryintheappropriatepartslisting.Useofan
incorrectbatterycanresultinignitionorexplosionofthebattery.
Certainesbatteriesdesecourscontiennentdunickeletducadmium.Neles
démontezpas,nelesrechargezpas,nelesexposezniaufeuniàl’eau.Ne
lesmettezpasencourtcircuit.Pourlesmettreaurebut,conformezvousà
laréglementationenvigueur.Lorsquevousremplacezlapiledesauvegarde
oucelledel’horlogetempsréel,veillezàn’utiliserquelesmodèlescitésdans
lalistedepiècesdétachéesadéquate.Unebatterieouunepileinappropriée
risquedeprendrefeuoud’exploser.
DieBereitschaftsbatterie,diesichunterdemDiskettenlaufwerkbefindet,
kanngeringeMengenNickelundCadmiumenthalten.Siedarfnicht
zerlegt,wiederaufgeladen,kurzgeschlossen,oderFeueroderWasser
ausgesetztwerden.BeiderEntsorgungdieörtlichenBestimmungenfür
Sondermüllbeachten.BeimErsetzenderBereitschaftsoderSystembatterie
nurBatteriendesTypsverwenden,derinderErsatzteillisteaufgeführtist.
DerEinsatzfalscherBatterienkannzuEntzündungoderExplosionführen.
Alcunebatteriediriservacontengonounapiccolaquantitàdinichele
cadmio.Nonsmontarle,ricaricarle,gettarlenelfuocoonell’acqua
cortocircuitarle.Smaltirlesecondolanormativainvigore(DPR915/82,
successivedisposizioniedisposizionilocali).Quandosisostituiscela
batteriadell’RTC(realtimeclock)olabatteriadisupporto,utilizzare
soltantoitipiinseritinell’appropriatoCatalogoparti.L’impiegodiuna
batterianonadattapotrebbedeterminarel’incendiool’esplosionedella
batteriastessa.
Algunasbateríasdereservacontienenunapequeñacantidaddeníquely
cadmio.Nolasdesmonte,nirecargue,nilasechealfuegooalaguanilas
cortocircuite.Deséchelastalcomodisponelanormativalocal.Utilicesólo
bateríasquese encuentrenenlalistadepiezas.Lautilizacióndeunabatería
noapropiadapuedeprovocarlaigniciónoexplosióndelamisma.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
9
Safety notice 3
DANGER
Thebatterypackcontainssmallamountsofnickel.Donotdisassembleit,
throwitintofireorwater,orshortcircuitit.Disposeofthebatterypackas
requiredbylocalordinancesorregulations.Useonlythebatteryinthe
appropriatepartslistingwhenreplacingthebatterypack.Useofan
incorrectbatterycanresultinignitionorexplosionofthebattery.
Labatteriecontientdunickel.Neladémontezpas,nel’exposezniaufeuni
àl’eau.Nelamettezpasencourtcircuit.Pourlamettreaurebut,
conformezvousàlaréglementationenvigueur.Lorsquevousremplacezla
batterie,veillezàn’utiliserquelesmodèlescitésdanslalistedepièces
détachéesadéquate.Eneffet,unebatterieinappropriéerisquedeprendre
feuoud’exploser.
AkkusenthaltengeringeMengenvonNickel.Siedürfennichtzerlegt,
wiederaufgeladen,kurzgeschlossen,oderFeueroderWasserausgesetzt
werden.BeiderEntsorgungdieörtlichenBestimmungenrSondermüll
beachten.BeimErsetzenderBatterienurBatteriendesTypsverwenden,der
inderErsatzteillisteaufgeführtist.DerEinsatzfalscherBatterienkannzu
EntzündungoderExplosionführen.
Labatteriacontienepiccolequantitàdinichel.Nonsmontarla,gettarlanel
fuocoonell’acquacortocircuitarla.Smaltirlasecondolanormativain
vigore(DPR915/82,successivedisposizioniedisposizionilocali).Quandosi
sostituiscelabatteria,utilizzaresoltantoitipiinseritinell’appropriato
Catalogoparti.L’impiegodiunabatterianonadattapotrebbedeterminare
l’incendiool’esplosionedellabatteriastessa.
Lasbateríascontienenpequeñascantidadesdeníquel.Nolasdesmonte,ni
recargue,nilasechealfuegooalaguanilascortocircuite.Deséchelastal
comodisponelanormativalocal.Utilicesólobateríasqueseencuentrenen
lalistadepiezasalsustituirlabatería.Lautilizacióndeunabateríano
apropiadapuedeprovocarlaigniciónoexplosióndelamisma.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
10
Safety notice 4
DANGER
Thelithiumbatterycancauseafire,anexplosion,orasevereburn.Donot
rechargeit,removeitspolarizedconnector,disassembleit,heatitabove
100°C(212°F),incinerateit,orexposeitscellcontentstowater.Disposeof
thebatteryasrequiredbylocalordinancesorregulations.Useonlythe
batteryintheappropriatepartslisting.Useofanincorrectbatterycanresult
inignitionorexplosionofthebattery.
Lapiledesauvegardecontientdulithium.Elleprésentedesrisques
d’incendie,d’explosionoudebrûluresgraves.Nelarechargezpas,ne
retirezpassonconnecteurpolariséetneladémontezpas.Nel’exposezpas
àunetemperaturesupérieureà100°C,nelafaitespasbrûleretn’enexposez
paslecontenuàl’eau.Mettezlapileaurebutconformémentàla
réglementationenvigueur.Unepileinappropriéerisquedeprendrefeuou
d’exploser.
DieSystembatterieisteineLithiumbatterie.Siekannsichentzünden,
explodierenoderschwereVerbrennungenhervorrufen.Batteriendieses
Typsdürfennichtaufgeladen,zerlegt,über100Cerhitztoderverbrannt
werden.AuchdarfihrInhaltnichtmitWasserinVerbindunggebrachtoder
derzurrichtigenPolungangebrachteVerbindungssteckerentferntwerden.
BeiderEntsorgungdieörtlichenBestimmungenfürSondermüllbeachten.
BeimErsetzenderBatterienurBatteriendesTypsverwenden,derinder
Ersatzteillisteaufgeführtist.DerEinsatzfalscherBatterienkannzu
EntzündungoderExplosionführen.
Labatteriadisupportoeunabatteriaallitioepuoincendiarsi,esplodereo
procuraregraviustioni.Evitarediricaricarla,smontarneilconnettore
polarizzato,smontarla,riscaldarlaadunatemperaturasuperioreai100
gradicentigradi,incendiarlaogettarlainacqua.Smaltirlasecondola
normativainvigore(DPR915/82,successivedisposizioniedisposizioni
locali).L’impiegodiunabatterianonadattapotrebbedeterminare
l’incendiool’esplosionedellabatteriastessa.
Labateríaderepuestoesunabateríadelitioypuedeprovocarincendios,
explosionesoquemadurasgraves.Nolarecargue,niquiteelconector
polarizado,niladesmonte,nicalienteporencimadelos100°C(212°F),nila
incinereniexpongaelcontenidodesusceldasalagua.Deséchelatalcomo
disponelanormativalocal.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
11
Safety notice 5
IftheLCDbreaksandthefluidfrominsidetheLCDgetsintoyoureyesor
onyourhands,immediatelywashtheaffectedareaswithwateratleastfor
15minutes.Seekmedicalcareifanysymptomscausedbythefluidare
presentafterwashing.
Silepanneaud’affichageàcristauxliquidessebriseetquevousrecevezdans
lesyeuxousurlesmainsunepartiedufluide,rincezlesabondamment
pendantaumoinsquinzeminutes.Consultezunmédecinsidessymptômes
persistentaprèslelavage.
DieLeuchtstoffröhreimLCDBildschirmenthältQuecksilber.Beider
EntsorgungdieörtlichenBestimmungenfürSondermüllbeachten.Der
LCDBildschirmbestehtausGlasundkannzerbrechen,wenner
unsachgemäßbehandeltwirdoderderComputeraufdenBodenfällt.Wenn
derBildschirmbeschädigtistunddiedarinbefindlicheFlüssigkeitin
KontaktmitHautundAugengerät,solltendiebetroffenenStellen
mindestens15MinutenmitWasserabgespültundbeiBeschwerden
anschließendeinArztaufgesuchtwerden.
Nelcasochecasol’LCDsidovesserompereedilliquidoinessocontenuto
entrasseincontattocongliocchiolemani,lavareimmediatamenteleparti
interessateconacquacorrenteperalmeno15minuti;poiconsultareun
medicoseisintomidovesseropermanere.
SilaLCDserompeyelfluidodesuinteriorentraencontactoconsusojoso
susmanos,laveinmediatamentelasáreasafectadasconaguadurante
15minutoscomomínimo.Obtengaatenciónmedicasisepresentaalgún
síntomadelfluidodespuesdelavarse.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
12
Safety notice 6
DANGER
Toavoidshock,donotremovetheplasticcoverthatprotectsthelowerpart
oftheinvertercard.
Afind’évitertoutrisquedechocélectrique,neretirezpaslecacheen
plastiqueprotégeantlapartieinférieuredelacarted’alimentation.
AusSicherheitsgründendieKunststoffabdeckung,diedenunterenTeilder
Spannungswandlerplatineumgibt,nichtentfernen.
Perevitarescosseelettriche,nonrimuoverelacoperturainplasticache
avvolgelaparteinferioredellaschedainvertitore.
Paraevitardescargas,noquitelacubiertadeplásticoquerodealapartebaja
delatarjetainvertida.
Safety notice 7
DANGER
Thoughthemainbatterieshavelowvoltage,ashortedorgroundedbattery
canproduceenoughcurrenttoburnpersonnelorcombustiblematerials.
Bienquelevoltagedesbatteriesprincipalessoitpeuélevé,lecourtcircuitou
lamiseàlamassed’unebatteriepeutproduiresuffisammentdecourant
pourbrûlerdesmatériauxcombustiblesoucauserdesbrûlurescorporelles
graves.
ObwohlHauptbatterieneineniedrigeSpannunghaben,könnensiedochbei
KurzschlußoderErdunggenugStromabgeben,umbrennbareMaterialien
zuentzündenoderVerletzungenbeiPersonenhervorzurufen.
Sebbenelebatteriedialimentazionesianoabassovoltaggio,unabatteriain
cortocircuitooamassapuòfornirecorrentesufficientedabruciaremateriali
combustibilioprovocareustioniaitecnicidimanutenzione.
Aunquelasbateríasprincipalestienenunvoltajebajo,unabatería
cortocircuitadaoconcontactoatierrapuedeproducirlacorrientesuficiente
comoparaquemarmaterialcombustibleoprovocarquemadurasenel
personal.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
13
Safety notice 8
DANGER
BeforeremovinganyFRU,turnoffthecomputer,unplugallpowercords
fromelectricaloutlets,removethebatterypack,andthendisconnectany
interconnectingcables.
Avantderetireruneunitéremplaçableenclientèle,mettezlesystèmehors
tension,débrancheztouslescordonsd’alimentationdessoclesdeprisede
courant,retirezlabatterieetdéconnecteztouslescordonsd’interface.
DieStromzufuhrmußabgeschaltet,alleStromkabelausderSteckdose
gezogen,derAkkuentferntundalleVerbindungskabelabgenommensein,
bevoreineFRUentferntwird.
PrimadirimuoverequalsiasiFRU,spegnereilsistema,scollegaredalleprese
elettrichetuttiicavidialimentazione,rimuoverelabatteriaepoiscollegare
icavidiinterconnessione.
AntesdequitarunaFRU,apagueelsistema,desenchufetodosloscablesde
lastomasdecorrienteeléctrica,quitelabateríay,acontinuación,desconecte
cualquiercabledeconexiónentredispositivos.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
14
Somemodelsof Lenovocomputerareequippedfromthefactorywithanoptical
storagedevicesuchasaCDROMdriveoraDVDROMdrive.Suchdevicesare
alsosoldseparatelyasoptions.Ifoneofthesedrivesisinstalled,itiscertifiedin
theU.S.toconformtotherequirementsoftheDepartmentofHealthandHuman
Services21CodeofFederalRegulations(DHHS21CFR)SubchapterJforClass
1laserproducts.Elsewhere,thedriveiscertifiedtoconformtotherequirements
oftheInternationalElectrotechnicalCommission(IEC)825andCENELECEN60
825forClass1laserproducts.
IfaCDROMdrive,aDVDROMdrive,oranotherlaserdeviceisinstalled,note
thefollowing:
OpeningtheCDROMdrive,theDVDROMdrive,oranyotheropticalstorage
devicecouldresultinexposuretohazardouslaserradiation.Thereareno
serviceablepartsinsidethosedrives.Do not open.
Laser compliance statement
CAUTION
Useofcontrolsoradjustmentsorperformanceofproceduresotherthan
thosespecifiedhereinmightresultinhazardousradiationexposure.
Ousodecontroles,ajustesoudesempenhodeprocedimentosdiferentes
daquelesaquiespecificadospoderesultaremperigosaexposiçãoàradiação.
Pourévitertoutrisqued’expositionaurayonlaser,respectezlesconsignes
deréglageetd’utilisationdescommandes,ainsiquelesprocéduresdécrites.
WerdenSteuer‐undEinstellelementeandersalshierfestgesetztverwendet,
kanngefährlicheLaserstrahlungauftreten.
L’utilizzodicontrolli,regolazioniol’esecuzionediprocedurediverseda
quellespecificatepossonoprovocarel’esposizionea.
Elusodecontrolesoajustesolaejecucióndeprocedimientosdistintosdelos
aquíespecificadospuedeprovocarlaexposiciónaradiacionespeligrosas.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70
15
ACDROMdrive,aDVDROMdrive,oranyotherstoragedeviceinstalledmay
containanembeddedClass3AorClass3Blaserdiode.Notethefollowing:
DANGER
Emitsvisibleandinvisiblelaserradiationwhenopen.Donotstareintothe
beam,donotviewdirectlywithopticalinstruments,andavoiddirect
exposuretothebeam.
Radiaçãoporraiolaseraoabrir.Nãoolhefixonofeixedeluz,nãoolhe
diretamentepormeiodeinstru mentosóticoseeviteexposiçãodiretacomo
feixedeluz.
Rayonnementlasersicarterouvert.Évitezdefixerlefaisceau,deleregarder
directementavecdesinstrumentsoptiques,oudevousexposeraurayon.
LaserstrahlungbeigeöffnetemGerät.Nichtdirektoderüberoptische
InstrumenteindenLaserstrahlsehenunddenStrahlungsbereichmeiden.
Kinyitáskorlézersugár!Nenézzenbeleseszabadszemmel,seoptikai
eszközökkel.Kerüljea sugárnyalábbalvalóérintkezést!
Aprendol’unitàvengonoemesseradiazionilaser.Nonfissareilfascio,non
guardarlodirettamenteconstrumentiotticieevitarel’esposizionedirettaal
fascio.
Radiaciónláseralabrir.Nomirefijamenteniexamineconinstrumental
ópticoelhazdeluz.Evitelaexposicióndirectaalhaz.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
16
Thischapterpresentsthefollowingimportantserviceinformation:
“StrategyforreplacingFRUs”onpage16
“Strategyforreplacingaharddiskdrive”onpage17
“Importantnoticeforreplacingasystemboard”onpage17
“ImportantinformationaboutreplacingRoHScompliantFRUs”onpage18
Before replacing parts:
Makesurethatallsoftwarefixes,drivers,andBIOSdownloadsareinstalled
beforereplacinganyFRUslistedinthismanual.
Afterasystemboardisreplaced,ensurethatthelatestBIOSisloadedtothe
systemboardbeforecompletingtheserviceaction.
Todownloadsoftwarefixes,drivers,andBIOS,followthestepsbelow:
1. Gotohttp://consumersupport.lenovo.com/
2. EntertheserialnumberorselectaproductoruseLenovosmart
downloading.
3. SelecttheBIOS/Driver/Applicationsanddownload.
4. Followthedirectionsonthescreenandinstallthenecessarysoftware.
Important service information
Important:
BIOSanddevicedriverfixesarecustomerinstallable.TheBIOSanddevice
driversarepostedonthecustomersupportsite:
http://consumersupport.lenovo.com/.
Strategy for replacing FRUs
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16
  • Page 17 17
  • Page 18 18
  • Page 19 19
  • Page 20 20
  • Page 21 21
  • Page 22 22
  • Page 23 23
  • Page 24 24
  • Page 25 25
  • Page 26 26
  • Page 27 27
  • Page 28 28
  • Page 29 29
  • Page 30 30
  • Page 31 31
  • Page 32 32
  • Page 33 33
  • Page 34 34
  • Page 35 35
  • Page 36 36
  • Page 37 37
  • Page 38 38
  • Page 39 39
  • Page 40 40
  • Page 41 41
  • Page 42 42
  • Page 43 43
  • Page 44 44
  • Page 45 45
  • Page 46 46
  • Page 47 47
  • Page 48 48
  • Page 49 49
  • Page 50 50
  • Page 51 51
  • Page 52 52
  • Page 53 53
  • Page 54 54
  • Page 55 55
  • Page 56 56
  • Page 57 57
  • Page 58 58
  • Page 59 59
  • Page 60 60
  • Page 61 61
  • Page 62 62
  • Page 63 63
  • Page 64 64
  • Page 65 65
  • Page 66 66
  • Page 67 67
  • Page 68 68
  • Page 69 69
  • Page 70 70
  • Page 71 71
  • Page 72 72
  • Page 73 73
  • Page 74 74
  • Page 75 75
  • Page 76 76
  • Page 77 77
  • Page 78 78
  • Page 79 79
  • Page 80 80
  • Page 81 81
  • Page 82 82
  • Page 83 83
  • Page 84 84
  • Page 85 85
  • Page 86 86
  • Page 87 87
  • Page 88 88

Lenovo B50-70 Specification

Category
Notebooks
Type
Specification
This manual is also suitable for

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI