Lenovo B50-70 Specification

Lenovo

B50-30/B50-30 Touch/

B50-45/B50-70

Hardware

Maintenance

Manual

Note:

Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation

under“Notices”onpage83.

First Edition (April 2014)

LENOVOproducts,data,computersoftware,andserviceshavebeendevelopedexclusivelyatprivate

expenseandaresoldtogovernmentalentitiesascommercialitemsasdefinedby48C.F.R.2.101with

limitedandrestrictedrightstouse,reproductionanddisclosure.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:Ifproducts,data,computersoftware,orservicesare

deliveredpursuantaGeneralServicesAdministration“GSA”contract,use,reproduction,ordisclo‐

sureissubjecttorestrictionssetforthinContractNo.GS‐35F‐05925.

©2014Lenovo

iii

About this manual........................................iv

Safety information.........................................1

Generalsafety ...................................................... 2

Electricalsafety.................................................... 3

Safetyinspectionguide ...................................... 5

Handlingdevicesthataresensitivetoelectro‐

staticdischarge .................................................... 6

Groundingrequirements ................................... 6

Safetynotices:multilingualtranslations.......... 7

Lasercompliancestatement............................. 14

Important service information ...................16

Strategyforreplac ingFRUs............................. 16

Strategyforreplacingaharddiskdrive .. 17

Importantnoticeforreplacingasystem

board ............................................................. 17

ImportantinformationaboutreplacingRoHS

compliantFRUs ................................................. 18

General checkout........................................19

Whattodofirst.................................................. 20

Powersystemcheckout .................................... 21

CheckingtheACadapter........................... 21

Checkingoperationalcharging................. 21

Checkingthebatterypack ......................... 22

Related service information.......................23

RestoringthefactorycontentsbyusingRecov‐

eryDiscSet......................................................... 23

Passwords........................................................... 24

Power‐onpassword.................................... 24

Hard‐diskpassword ................................... 24

Supervisorpassword .................................. 24

Powermanagement .......................................... 25

Screenblankstate........................................ 25

Puttingthecomputertosleeporshuttingit

down ............................................................. 25

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

27

Specifications ..................................................... 27

Statusindicators ................................................ 29

Fnkeycombinations......................................... 30

Hotkeys............................................................... 30

FRUreplacementnotices.................................. 31

Screwnotices................................................ 31

RemovingandreplacinganFRU.................... 32

1010Batterypack......................................... 33

1020Opticaldrive ....................................... 34

1030Bottomslotcover ................................36

1040Harddiskdrive................................... 37

1050DIMM................................................... 39

1060PCIExpressMiniCardforwireless

LAN/WAN....................................................40

1070Keyboard..............................................41

1080Keyboardbezel ................................... 43

1090Fingerprintandpowerboard ..........45

1100USBboardandODDboard...............47

1110Ledboard.............................................48

1120Dockingboard(onselectmodels).... 49

1130Systemboard.......................................50

1140Fanandheatsinkassembly ..............53

1150Speakersandbatteryboard............... 54

1160LCDunitandbasecover ................... 55

1170LCDfrontbezel................................... 59

1180LCDpanel............................................ 60

1190LCDhinges .......................................... 62

1200Antenna,LCDcable,andintegrated

camera ........................................................... 63

Locations ............................................................. 65

Frontview.....................................................65

Right‐sideview ............................................ 66

Bottomandleft‐sideview ..........................67

Partslist............................................................... 68

Overall...........................................................69

LCDFRUs.....................................................73

Keyboard.......................................................75

Miscellaneousparts..................................... 78

ACadapters.................................................. 79

Screws............................................................ 79

Powercords.................................................. 80

Notices .........................................................83

Trademarks......................................................... 84

Contents

iv

Thismanualcontainsserviceandreferenceinformationforthefollowing

Lenovoproduct:

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

Usethismanualtotroubleshootproblems.

Themanualisdividedintothefollowingsections:

• Thecommonsectionsprovidegeneralinformation,guidelines,andsafety

informationrequiredforservicingcomputers.

• Theproduct‐specificsectionincludesservice,reference,andproduct‐specific

partsinformation.

About this manual

Important:

Thismanualisintendedonlyfortrainedservicerswhoarefamiliarwith

Lenovoproducts.Usethismanualtotroubleshootproblemseffectively.

BeforeservicingaLenovoproduct,makesuretoreadalltheinformation

under“Safetyinformation”onpage1and“Importantserviceinformation”

onpage16.

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

1

Thischapterpresentsthefollowingsafetyinformationthatyouneedtoget

familiarwithbeforeyouserviceaLenovocomputer:

• “Generalsafety”onpage2

• “Electricalsafety”onpage3

• “Safetyinspectionguide”onpage5

• “Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage6

• “Groundingrequirements”onpage6

• “Safetynotices:multilingualtranslations”onpage7

• “Lasercompliancestatement”onpage14

Safety information

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70

Hardware Maintenance Manual

2

Followthefollowingrulestoensuregeneralsafety:

• Observeagoodhousekeepingintheareawherethemachinesareputduring

andafterthemaintenance.

• Whenliftinganyheavyobject:

1. Makesurethatyoucanstandsafelywithoutslipping.

2. Distributetheweightoftheobjectequallybetweenyourfeet.

3. Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempt

toliftit.

4. Liftitbystandingorpushingupwithyourlegmuscles;thisactioncould

avoidthestrainfromthemusclesinyourback.Donotattempttoliftany

objectthatweighsmorethan 16kg(35lb)orthatyouthinkistooheavyfor

you.

• Donotperformanyactionthatcauseshazardstothecustomer,orthatmakes

themachineunsafe.

• Beforeyoustartthemachine,makesurethatotherservicerepresentatives

andthecustomerarenotinahazardousposition.

• Pleaseremovecoversandotherpartsinasafeplace,awayfromallpersonnel,

whileyouareservicingthemachine.

• Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripit

over.

• Donotwearlooseclothingthatcanbetrappedinthemovingpartsofthe

machine.Makesurethatyoursleevesarefastenedorrolledupaboveyour

elbows.Ifyourhairislong,fastenit.

• Inserttheendsofyournecktieorscarfinsideclothingorfastenitwiththe

nonconductiveclip,about8centimeters(3inches)fromtheend.

• Donotwearjewelry,chains,metal‐frameeyeglasses,ormetalfastenersfor

yourclothing.

Attention:Metalobjectsaregoodelectricalconductors.

• Wearsafetyglasseswhenyouarehammering,drilling,soldering,cutting

wire,attachingsprings,usingsolvents,orworkinginanyotherconditions

thatmaybehazardoustoyoureyes.

• Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.

Replaceanysafetydevicethatiswornordefective.

• Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.

• Fanlouversonthemachinehelptopreventtheoverheatingofinternal

components.Donotobstructfanlouversorcoverthemwithlabelsor

stickers.

General safety

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

3

Observethefollowingruleswhenworkingonelectricalequipments.

• Findtheroomemergencypower‐off(EPO)switch,disconnectingswitch,or

electricaloutlet.Ifanelectricalaccidentoccurs,youcanthenoperatethe

switchorunplugthepowercordquickly.

• Donotworkaloneunderhazardousconditionsorneartheequipmentthat

hashazardousvoltages.

• Disconnectallpowerbefore:

– Performingamechanicalinspection

– Workingnearpowersupplies

– Removingorinstallingmainunits

• Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyou

cannotunplugit,askthecustomertopower‐offthewallboxthatsupplies

powertothemachine,andtolockthewallboxintheoffposition.

• Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observe

thefollowingprecautions:

– Ensurethatanotherperson,familiarwiththepower‐offcontrols,isnear

you.

Attention:Anotherpersonmustbetheretoswitchoffthepower,if

necessary.

– Useonlyonehandwhenworkingwithpowered‐onelectricalequipment;

keeptheotherhandinyourpocketorbehindyourback.

Attention:Anelectricalshockcanoccuronlywhenthereisacomplete

circuit.Byobservingtheaboverule,youmaypreventacurrentfrom

passingthroughyourbody.

– Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobe

leadsandaccessoriesforthattester.

– Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulate

youfromgroundssuchasmetalfloorstripsandmachineframes.

Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;

instructionsfortheseprecautionsareinthesafetysectionsofmaintenance

information.Beextremelycarefulwhenyoumeasurethehighvoltages.

• Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperational

condition.

• Donotusewornorbrokentoolsandtesters.

• Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkit

tomakesurethatithasbeenpoweredoff.

Electrical safety

Important:

Useonlyapprovedtoolsandtestequipments.Somehandtoolshave

handlescoveredwithasoftmaterialthatdoesnotinsulateyouwhen

workingwithliveelectricalcurrents.

Manycustomershaverubberfloormatsneartheirmachinesthatcontain

smallconductivefiberstodecreaseelectrostaticdischarges.Donot usesuch

kindofmattoprotectyourselffromelectricalshock.

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70

Hardware Maintenance Manual

4

• Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesof

thesehazardsaremoistfloors,nongroundedpowerextensioncables,power

surges,andmissingsafetygrounds.

• Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplastic

dentalmirror.Thesurfaceisconductive;suchtouchingcancausepersonal

injuryandmachinedamage.

• Donotservicethefollowingpartswiththepoweronwhentheyareremoved

fromtheirnormaloperatingplacesinamachine:

– Powersupplyunits

– Pumps

– Blowersandfans

– Motorgenerators

andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)

• Ifanelectricalaccidentoccurs:

– Usecaution:donotbecomeavictimyourself.

– Switchoffthepower.

– Sendthevictimtogetmedicalaid.

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

5

Thepurposeofthisinspectionguideistoassistyouinidentifyingpotential

unsafeconditions.Aseachmachinewasdesignedandbuilt,requiredsafety

itemswereinstalledtoprotectusersandservicepersonnelfrominjury.This

guideaddressesonlythoseitems.Youshouldusegoodjudgmenttoidentify

potentialsafetyhazardsduetoattachmentofnon‐Lenovofeaturesoroptionsnot

coveredbythisinspectionguide.

Ifanyunsafeconditionsarepresent,youmustdeterminehowseriousthe

apparenthazardcouldbeandwhetheryoucancontinuewithoutfirstcorrecting

theproblem.

Considertheseconditionsandthesafetyhazardstheypresent:

• Electricalhazards,especiallyprimarypower(primaryvoltageontheframe

cancauseseriousorfatalelectricalshock)

• Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor

• Mechanicalhazards,suchaslooseormissinghardware

Todeterminewhetherthereareanypotentialunsafeconditions,usethe

followingchecklistatthebeginningofeveryservicetask.Beginthecheckswith

thepoweroff,andthepowercorddisconnected.

Checklist:

1. Checkexteriorcoversfordamage(loose,broken,orsharpedges).

2. Turnoffthecomputer.Disconnectthepowercord.

3. Checkthepowercordfor:

a. Athird‐wiregroundconnectoringoodcondition.Useametertomeasure

third‐wiregroundcontinuityfor0.1ohmorlessbetweentheexternal

groundpinandtheframeground.

b. Thepowercordshouldbethetypespecifiedinthepartslist.

c. Insulationmustnotbefrayedorworn.

4. Checkforcrackedorbulgingbatteries.

5. Removethecover.

6. Checkforanyobviousnon‐Lenovoalterations.Usegoodjudgmentastothe

safetyofanynon‐Lenovoalterations.

7. Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,

contamination,waterorotherliquids,orsignsoffireorsmokedamage.

8. Checkforworn,frayed,orpinchedcables.

9. Checkthatthepower‐supplycoverfasteners(screwsorrivets)havenotbeen

removedortamperedwith.

Safety inspection guide

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70

Hardware Maintenance Manual

6

Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbe

consideredsensitivetoelectrostaticdischarge(ESD).ESDdamagecanoccur

whenthereisadifferenceinchargebetweenobjects.ProtectagainstESDdamage

byequalizingthechargesothatthemachine,thepart,theworkmat,andthe

personhandlingthepartareallatthesamecharge.

WhenhandlingESD‐sensitiveparts:

• Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

• Avoidcontactwithotherpeople.

• Wearagroundedwriststrapagainstyourskintoeliminatestaticonyour

body.

• Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeand

retainsachargeevenwhenyouarewearingawriststrap.

• Usetheblacksideofagroundedworkmattoprovideastatic‐freework

surface.ThematisespeciallyusefulwhenhandlingESD‐sensitivedevices.

• Selectagroundingsystem,suchasthoselistedbelow,toprovideprotection

thatmeetsthespecificservicerequirement.

– AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen‐

wireground.

– Whenworkingonadouble‐insulatedorbattery‐operatedsystem,usean

ESDcommongroundorreferencepoint.Youcanusecoaxorconnector‐

outsideshellsonthesesystems.

– Usetheroundgroundprongoftheacplugonac‐operatedcomputers.

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrect

systemfunction.Propergroundingoftheelectricaloutletcanbeverifiedbya

certifiedelectrician.

Handling devices that are sensitive to electrostatic discharge

Notes:

1. Useproduct‐specificESDprocedureswhentheyexceedthe

requirementsnotedhere.

2. MakesurethattheESDprotectivedevicesyouusehavebeencertified

(ISO9000)asfullyeffective.

Notes:

TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebut

notnecessary.

Grounding requirements

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

7

ThesafetynoticesinthissectionareprovidedinEnglish,French,German,

Hebrew,Italian,Japanese,andSpanish.

Safety notices: multilingual translations

Safety notice 1

BeforethecomputerispoweredonafterFRUreplacement,makesureall

screws,springs,andothersmallpartsareinplaceandarenotleftloose

insidethecomputer.Verifythisbyshakingthecomputerandlisteningfor

rattlingsounds.Metallicpartsormetalflakescancauseelectricalshorts.

Avantderemettrel’ordinateursoustensionaprèsremplacementd’uneunité

enclientèle,vérifiezquetouslesressorts,visetautrespiècessontbienen

placeetbienfixées.Pourcefaire,secouezl’unitéetassurez‐vousqu’aucun

bruitsuspectneseproduit.Despiècesmétalliquesoudescopeauxdemétal

pourraientcauseruncourt‐circuit.

BevornacheinemFRU‐AustauschderComputerwiederangeschlossen

wird,mußsichergestelltwerden,daßkeineSchrauben,Federnoderandere

KleinteilefehlenoderimGehäusevergessenwurden.DerComputermuß

geschütteltundaufKlappergeräuschegeprüftwerden.Metallteileoder‐

splitterkönnenKurzschlüsseerzeugen.

Primadiaccenderel’elaboratoredopocheéstataeffettuatalasostituzionedi

unaFRU,accertarsichetutteleviti,lemolleetuttelealtripartidipiccole

dimensionisianonellacorrettaposizioneenonsianosparseall’interno

dell’elaboratore.Verificareciòscuotendol’elaboratoreeprestando

attenzioneadeventualirumori;eventualipartiopezzettimetallicipossono

provocarecortocircuitipericolosi.

AntesdeencenderelsistemadespuesdesustituirunaFRU,compruebeque

todoslostornillos,muellesydemáspiezaspequeñasseencuentranensu

sitioynoseencuentransueltasdentrodelsistema.Compruébeloagitandoel

sistemayescuchandolosposiblesruidosqueprovocarían.Laspiezas

metálicaspuedencausarcortocircuitoseléctricos.

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70

Hardware Maintenance Manual

8

Safety notice 2

DANGER

Somestandbybatteriescontainasmallamountofnickelandcadmium.Do

notdisassembleastandbybattery,rechargeit,throwitintofireorwater,or

short‐circuitit.Disposeofthebatteryasrequiredbylocalordinancesor

regulations.Useonlythebatteryintheappropriatepartslisting.Useofan

incorrectbatterycanresultinignitionorexplosionofthebattery.

Certainesbatteriesdesecourscontiennentdunickeletducadmium.Neles

démontezpas,nelesrechargezpas,nelesexposezniaufeuniàl’eau.Ne

lesmettezpasencourt‐circuit.Pourlesmettreaurebut,conformez‐vousà

laréglementationenvigueur.Lorsquevousremplacezlapiledesauvegarde

oucelledel’horlogetempsréel,veillezàn’utiliserquelesmodèlescitésdans

lalistedepiècesdétachéesadéquate.Unebatterieouunepileinappropriée

risquedeprendrefeuoud’exploser.

DieBereitschaftsbatterie,diesichunterdemDiskettenlaufwerkbefindet,

kanngeringeMengenNickelundCadmiumenthalten.Siedarfnicht

zerlegt,wiederaufgeladen,kurzgeschlossen,oderFeueroderWasser

ausgesetztwerden.BeiderEntsorgungdieörtlichenBestimmungenfür

Sondermüllbeachten.BeimErsetzenderBereitschafts‐oderSystembatterie

nurBatteriendesTypsverwenden,derinderErsatzteillisteaufgeführtist.

DerEinsatzfalscherBatterienkannzuEntzündungoderExplosionführen.

Alcunebatteriediriservacontengonounapiccolaquantitàdinichele

cadmio.Nonsmontarle,ricaricarle,gettarlenelfuocoonell’acquané

cortocircuitarle.Smaltirlesecondolanormativainvigore(DPR915/82,

successivedisposizioniedisposizionilocali).Quandosisostituiscela

batteriadell’RTC(realtimeclock)olabatteriadisupporto,utilizzare

soltantoitipiinseritinell’appropriatoCatalogoparti.L’impiegodiuna

batterianonadattapotrebbedeterminarel’incendiool’esplosionedella

batteriastessa.

Algunasbateríasdereservacontienenunapequeñacantidaddeníquely

cadmio.Nolasdesmonte,nirecargue,nilasechealfuegooalaguanilas

cortocircuite.Deséchelastalcomodisponelanormativalocal.Utilicesólo

bateríasquese encuentrenenlalistadepiezas.Lautilizacióndeunabatería

noapropiadapuedeprovocarlaigniciónoexplosióndelamisma.

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

9

Safety notice 3

DANGER

Thebatterypackcontainssmallamountsofnickel.Donotdisassembleit,

throwitintofireorwater,orshort‐circuitit.Disposeofthebatterypackas

requiredbylocalordinancesorregulations.Useonlythebatteryinthe

appropriatepartslistingwhenreplacingthebatterypack.Useofan

incorrectbatterycanresultinignitionorexplosionofthebattery.

Labatteriecontientdunickel.Neladémontezpas,nel’exposezniaufeuni

àl’eau.Nelamettezpasencourt‐circuit.Pourlamettreaurebut,

conformez‐vousàlaréglementationenvigueur.Lorsquevousremplacezla

batterie,veillezàn’utiliserquelesmodèlescitésdanslalistedepièces

détachéesadéquate.Eneffet,unebatterieinappropriéerisquedeprendre

feuoud’exploser.

AkkusenthaltengeringeMengenvonNickel.Siedürfennichtzerlegt,

wiederaufgeladen,kurzgeschlossen,oderFeueroderWasserausgesetzt

werden.BeiderEntsorgungdieörtlichenBestimmungenfürSondermüll

beachten.BeimErsetzenderBatterienurBatteriendesTypsverwenden,der

inderErsatzteillisteaufgeführtist.DerEinsatzfalscherBatterienkannzu

EntzündungoderExplosionführen.

Labatteriacontienepiccolequantitàdinichel.Nonsmontarla,gettarlanel

fuocoonell’acquanécortocircuitarla.Smaltirlasecondolanormativain

vigore(DPR915/82,successivedisposizioniedisposizionilocali).Quandosi

sostituiscelabatteria,utilizzaresoltantoitipiinseritinell’appropriato

Catalogoparti.L’impiegodiunabatterianonadattapotrebbedeterminare

l’incendiool’esplosionedellabatteriastessa.

Lasbateríascontienenpequeñascantidadesdeníquel.Nolasdesmonte,ni

recargue,nilasechealfuegooalaguanilascortocircuite.Deséchelastal

comodisponelanormativalocal.Utilicesólobateríasqueseencuentrenen

lalistadepiezasalsustituirlabatería.Lautilizacióndeunabateríano

apropiadapuedeprovocarlaigniciónoexplosióndelamisma.

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70

Hardware Maintenance Manual

10

Safety notice 4

DANGER

Thelithiumbatterycancauseafire,anexplosion,orasevereburn.Donot

rechargeit,removeitspolarizedconnector,disassembleit,heatitabove

100°C(212°F),incinerateit,orexposeitscellcontentstowater.Disposeof

thebatteryasrequiredbylocalordinancesorregulations.Useonlythe

batteryintheappropriatepartslisting.Useofanincorrectbatterycanresult

inignitionorexplosionofthebattery.

Lapiledesauvegardecontientdulithium.Elleprésentedesrisques

d’incendie,d’explosionoudebrûluresgraves.Nelarechargezpas,ne

retirezpassonconnecteurpolariséetneladémontezpas.Nel’exposezpas

àunetemperaturesupérieureà100°C,nelafaitespasbrûleretn’enexposez

paslecontenuàl’eau.Mettezlapileaurebutconformémentàla

réglementationenvigueur.Unepileinappropriéerisquedeprendrefeuou

d’exploser.

DieSystembatterieisteineLithiumbatterie.Siekannsichentzünden,

explodierenoderschwereVerbrennungenhervorrufen.Batteriendieses

Typsdürfennichtaufgeladen,zerlegt,über100Cerhitztoderverbrannt

werden.AuchdarfihrInhaltnichtmitWasserinVerbindunggebrachtoder

derzurrichtigenPolungangebrachteVerbindungssteckerentferntwerden.

BeiderEntsorgungdieörtlichenBestimmungenfürSondermüllbeachten.

BeimErsetzenderBatterienurBatteriendesTypsverwenden,derinder

Ersatzteillisteaufgeführtist.DerEinsatzfalscherBatterienkannzu

EntzündungoderExplosionführen.

Labatteriadisupportoeunabatteriaallitioepuoincendiarsi,esplodereo

procuraregraviustioni.Evitarediricaricarla,smontarneilconnettore

polarizzato,smontarla,riscaldarlaadunatemperaturasuperioreai100

gradicentigradi,incendiarlaogettarlainacqua.Smaltirlasecondola

normativainvigore(DPR915/82,successivedisposizioniedisposizioni

locali).L’impiegodiunabatterianonadattapotrebbedeterminare

l’incendiool’esplosionedellabatteriastessa.

Labateríaderepuestoesunabateríadelitioypuedeprovocarincendios,

explosionesoquemadurasgraves.Nolarecargue,niquiteelconector

polarizado,niladesmonte,nicalienteporencimadelos100°C(212°F),nila

incinereniexpongaelcontenidodesusceldasalagua.Deséchelatalcomo

disponelanormativalocal.

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

11

Safety notice 5

IftheLCDbreaksandthefluidfrominsidetheLCDgetsintoyoureyesor

onyourhands,immediatelywashtheaffectedareaswithwateratleastfor

15minutes.Seekmedicalcareifanysymptomscausedbythefluidare

presentafterwashing.

Silepanneaud’affichageàcristauxliquidessebriseetquevousrecevezdans

lesyeuxousurlesmainsunepartiedufluide,rincez‐lesabondamment

pendantaumoinsquinzeminutes.Consultezunmédecinsidessymptômes

persistentaprèslelavage.

DieLeuchtstoffröhreimLCD‐BildschirmenthältQuecksilber.Beider

EntsorgungdieörtlichenBestimmungenfürSondermüllbeachten.Der

LCD‐BildschirmbestehtausGlasundkannzerbrechen,wenner

unsachgemäßbehandeltwirdoderderComputeraufdenBodenfällt.Wenn

derBildschirmbeschädigtistunddiedarinbefindlicheFlüssigkeitin

KontaktmitHautundAugengerät,solltendiebetroffenenStellen

mindestens15MinutenmitWasserabgespültundbeiBeschwerden

anschließendeinArztaufgesuchtwerden.

Nelcasochecasol’LCDsidovesserompereedilliquidoinessocontenuto

entrasseincontattocongliocchiolemani,lavareimmediatamenteleparti

interessateconacquacorrenteperalmeno15minuti;poiconsultareun

medicoseisintomidovesseropermanere.

SilaLCDserompeyelfluidodesuinteriorentraencontactoconsusojoso

susmanos,laveinmediatamentelasáreasafectadasconaguadurante

15minutoscomomínimo.Obtengaatenciónmedicasisepresentaalgún

síntomadelfluidodespuesdelavarse.

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70

Hardware Maintenance Manual

12

Safety notice 6

DANGER

Toavoidshock,donotremovetheplasticcoverthatprotectsthelowerpart

oftheinvertercard.

Afind’évitertoutrisquedechocélectrique,neretirezpaslecacheen

plastiqueprotégeantlapartieinférieuredelacarted’alimentation.

AusSicherheitsgründendieKunststoffabdeckung,diedenunterenTeilder

Spannungswandlerplatineumgibt,nichtentfernen.

Perevitarescosseelettriche,nonrimuoverelacoperturainplasticache

avvolgelaparteinferioredellaschedainvertitore.

Paraevitardescargas,noquitelacubiertadeplásticoquerodealapartebaja

delatarjetainvertida.

Safety notice 7

DANGER

Thoughthemainbatterieshavelowvoltage,ashortedorgroundedbattery

canproduceenoughcurrenttoburnpersonnelorcombustiblematerials.

Bienquelevoltagedesbatteriesprincipalessoitpeuélevé,lecourt‐circuitou

lamiseàlamassed’unebatteriepeutproduiresuffisammentdecourant

pourbrûlerdesmatériauxcombustiblesoucauserdesbrûlurescorporelles

graves.

ObwohlHauptbatterieneineniedrigeSpannunghaben,könnensiedochbei

KurzschlußoderErdunggenugStromabgeben,umbrennbareMaterialien

zuentzündenoderVerletzungenbeiPersonenhervorzurufen.

Sebbenelebatteriedialimentazionesianoabassovoltaggio,unabatteriain

cortocircuitooamassapuòfornirecorrentesufficientedabruciaremateriali

combustibilioprovocareustioniaitecnicidimanutenzione.

Aunquelasbateríasprincipalestienenunvoltajebajo,unabatería

cortocircuitadaoconcontactoatierrapuedeproducirlacorrientesuficiente

comoparaquemarmaterialcombustibleoprovocarquemadurasenel

personal.

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

13

Safety notice 8

DANGER

BeforeremovinganyFRU,turnoffthecomputer,unplugallpowercords

fromelectricaloutlets,removethebatterypack,andthendisconnectany

interconnectingcables.

Avantderetireruneunitéremplaçableenclientèle,mettezlesystèmehors

tension,débrancheztouslescordonsd’alimentationdessoclesdeprisede

courant,retirezlabatterieetdéconnecteztouslescordonsd’interface.

DieStromzufuhrmußabgeschaltet,alleStromkabelausderSteckdose

gezogen,derAkkuentferntundalleVerbindungskabelabgenommensein, 

bevoreineFRUentferntwird.

PrimadirimuoverequalsiasiFRU,spegnereilsistema,scollegaredalleprese

elettrichetuttiicavidialimentazione,rimuoverelabatteriaepoiscollegare

icavidiinterconnessione.

AntesdequitarunaFRU,apagueelsistema,desenchufetodosloscablesde

lastomasdecorrienteeléctrica,quitelabateríay,acontinuación,desconecte

cualquiercabledeconexiónentredispositivos.

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70

Hardware Maintenance Manual

14

Somemodelsof Lenovocomputerareequippedfromthefactorywithanoptical

storagedevicesuchasaCD‐ROMdriveoraDVD‐ROMdrive.Suchdevicesare

alsosoldseparatelyasoptions.Ifoneofthesedrivesisinstalled,itiscertifiedin

theU.S.toconformtotherequirementsoftheDepartmentofHealthandHuman

Services21CodeofFederalRegulations(DHHS21CFR)SubchapterJforClass

1laserproducts.Elsewhere,thedriveiscertifiedtoconformtotherequirements

oftheInternationalElectrotechnicalCommission(IEC)825andCENELECEN60

825forClass1laserproducts.

IfaCD‐ROMdrive,aDVD‐ROMdrive,oranotherlaserdeviceisinstalled,note

thefollowing:

OpeningtheCD‐ROMdrive,theDVD‐ROMdrive,oranyotheropticalstorage

devicecouldresultinexposuretohazardouslaserradiation.Thereareno

serviceablepartsinsidethosedrives.Do not open.

Laser compliance statement

CAUTION

Useofcontrolsoradjustmentsorperformanceofproceduresotherthan

thosespecifiedhereinmightresultinhazardousradiationexposure.

Ousodecontroles,ajustesoudesempenhodeprocedimentosdiferentes

daquelesaquiespecificadospoderesultaremperigosaexposiçãoàradiação.

Pourévitertoutrisqued’expositionaurayonlaser,respectezlesconsignes

deréglageetd’utilisationdescommandes,ainsiquelesprocéduresdécrites.

WerdenSteuer‐undEinstellelementeandersalshierfestgesetztverwendet,

kanngefährlicheLaserstrahlungauftreten.

L’utilizzodicontrolli,regolazioniol’esecuzionediprocedurediverseda

quellespecificatepossonoprovocarel’esposizionea.

Elusodecontrolesoajustesolaejecucióndeprocedimientosdistintosdelos

aquíespecificadospuedeprovocarlaexposiciónaradiacionespeligrosas.

Lenovo B50-30/B50-30 Touch/B50-45/B50-70

15

ACD‐ROMdrive,aDVD‐ROMdrive,oranyotherstoragedeviceinstalledmay

containanembeddedClass3AorClass3Blaserdiode.Notethefollowing:

DANGER

Emitsvisibleandinvisiblelaserradiationwhenopen.Donotstareintothe

beam,donotviewdirectlywithopticalinstruments,andavoiddirect

exposuretothebeam.

Radiaçãoporraiolaseraoabrir.Nãoolhefixonofeixedeluz,nãoolhe

diretamentepormeiodeinstru mentosóticoseeviteexposiçãodiretacomo

feixedeluz.

Rayonnementlasersicarterouvert.Évitezdefixerlefaisceau,deleregarder

directementavecdesinstrumentsoptiques,oudevousexposeraurayon.

LaserstrahlungbeigeöffnetemGerät.Nichtdirektoderüberoptische

InstrumenteindenLaserstrahlsehenunddenStrahlungsbereichmeiden.

Kinyitáskorlézersugár!Nenézzenbeleseszabadszemmel,seoptikai

eszközökkel.Kerüljea sugárnyalábbalvalóérintkezést!

Aprendol’unitàvengonoemesseradiazionilaser.Nonfissareilfascio,non

guardarlodirettamenteconstrumentiotticieevitarel’esposizionedirettaal

fascio.

Radiaciónláseralabrir.Nomirefijamenteniexamineconinstrumental

ópticoelhazdeluz.Evitelaexposicióndirectaalhaz.

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70

Hardware Maintenance Manual

16

Thischapterpresentsthefollowingimportantserviceinformation:

• “StrategyforreplacingFRUs”onpage16

– “Strategyforreplacingaharddiskdrive”onpage17

– “Importantnoticeforreplacingasystemboard”onpage17

• “ImportantinformationaboutreplacingRoHScompliantFRUs”onpage18

Before replacing parts:

Makesurethatallsoftwarefixes,drivers,andBIOSdownloadsareinstalled

beforereplacinganyFRUslistedinthismanual.

Afterasystemboardisreplaced,ensurethatthelatestBIOSisloadedtothe

systemboardbeforecompletingtheserviceaction.

Todownloadsoftwarefixes,drivers,andBIOS,followthestepsbelow:

1. Gotohttp://consumersupport.lenovo.com/

2. EntertheserialnumberorselectaproductoruseLenovosmart

downloading.

3. SelecttheBIOS/Driver/Applicationsanddownload.

4. Followthedirectionsonthescreenandinstallthenecessarysoftware.

Important service information

Important:

BIOSanddevicedriverfixesarecustomer‐installable.TheBIOSanddevice

driversarepostedonthecustomersupportsite:

http://consumersupport.lenovo.com/.

Strategy for replacing FRUs

Page is loading ...

Lenovo B50-70 Specification

This manual is also suitable for

Lenovo B50-70 Specification

Related papers

Other documents