Lenovo B50-35 Owner's manual

LenovoB50–35All-In-OneComputer
HardwareMaintenanceManual
MachineType:F0AV[B50-35]

LenovoB50–35All-In-OneComputer
HardwareMaintenanceManual
MachineType:F0AV[B50-35]

ThirdEdition(September2014)12th
©CopyrightLenovo2014.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataoroftwarearedeliveredpuruantaGeneralService
Adminitration“GSA”contract,ue,reproduction,ordicloureiubjecttoretrictionetforthinContractNo.
GS-35F-05925

Contents
Chapter1.Aboutthismanua.....1
ImportantSafetyInformation.........1
Chapter2.Safetyinformation.....3
Generalafety...............3
Electricalafety..............3
Safetyinpectionguide...........5
Handlingelectrotaticdicharge-enitive
device.................5
Groundingrequirement...........6
Safetynotice...............6
Chapter3.Generainformation....9
Specification...............9
Chapter4.GeneraCheckout.....11
Chapter5.UsingtheSetupUtiity...13
StartingtheLenovoBIOSSetupUtilityprogram.13
Viewingandchangingetting........13
Uingpaword..............13
Enablingordiablingadevice........15
Selectingatartupdevice..........16
ExitingtheLenovoBIOSSetupUtilityprogram..17
Chapter6.Symptom-to-FRUIndex..19
Harddikdrivebooterror..........19
PowerSupplyProblem...........19
POSTerrorcode.............20
Undeterminedproblem...........20
Chapter7.Repacinghardware....21
Generalinformation.............21
Replacingthekeyboardandmoue......22
Replacingthepowercord..........22
Removingthetandbae..........23
Removingthefootcover...........24
Replacingthememorymodule........25
Replacingtheharddikdrive.........26
Replacingtheopticaldrive..........27
Removingthetandholder..........29
Removingthemiddlecover.........30
Replacingtheconverterboard........31
RemovingtheEMIcover...........32
ReplacingtheWi-Ficard...........33
ReplacingtheTVtunercard.........34
Replacingtheheat-ink...........35
ReplacingtheCPU.............36
Replacingtheytemfan..........39
Replacingthepeakerytem........40
Replacingthepowerwitchboard.......41
Replacingthemotherboard..........42
Removingthereardeco...........43
Replacingthecamera............44
ReplacingtheLEDpanelmodule.......45
Chapter8.FRUists..........49
Chapter9.Generainformation....59
AdditionalServiceInformation........59
©CopyrightLenovo2014iii

ivLenovoB50–35All-In-OneComputerHardwareMaintenanceManual

Chapter1.Aboutthismanua
ThimanualcontainerviceandreferenceinformationforLenovoB50–35All-In-Onecomputerlitedon
thecover.ItiintendedonlyfortrainedervicerwhoarefamiliarwithLenovocomputerproduct.
BeforeervicingaLenovoproduct,beuretoreadtheSafetyInformation.
ThedecriptionoftheTV-tunercardinthimanualapplieonlytocomputerwithaTV-tunercardintalled.
ItdoenotapplytocomputerwithoutaTV-tunercard.
ImportantSafetyInformation
BeuretoreadallCAUTIONandDANGERectioninthimanualbeforefollowinganyoftheintruction.
VeuillezliretouteleconignedetypeDANGERetATTENTIONdupréentdocumentavantd’exécuter
leintruction.
LeenSieunbedingtalleHinweievomTyp“ACHTUNG”oder“VORSICHT”indieerDokumentation,bevor
SieirgendwelcheVorgängedurchführen
LeggereleitruzioniintrodottedaATTENZIONEePERICOLOpreentinelmanualeprimadieeguireuna
qualiaidelleitruzioni
Certifique-edelertodaaintruçõedecuidadoeperigonetemanualantedeexecutarqualquer
umadaintruçõe
Eimportantequeleatodaladeclaracionedeprecauciónydepeligrodeetemanualantedeeguir
laintruccione.
©CopyrightLenovo20141

2LenovoB50–35All-In-OneComputerHardwareMaintenanceManual

Chapter2.Safetyinformation
Thichaptercontaintheafetyinformationthatyouneedtobefamiliarwithbeforeervicingacomputer.
Generasafety
Followtheeruletoenuregeneralafety:
•Keeptheareaaroundthecomputerclearandcleanduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Enureyoucantandafelywithoutlipping.
2.Ditributetheweightoftheobjectequallyacrobothfeet.
3.Liftlowly.Nevermoveuddenlyortwitwhenyouattempttolift.
4.Liftbytandingorbypuhingupwithyourlegmucle;thiactionremovethetrainfromthe
mucleinyourback.
Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjectsthatyouthinkare
tooheavyforyou.
•Donotperformanyactionthatwouldcreateahazardforthecutomer,orwouldmakethecomputer
unafe.
•Beforeyoutartthecomputer,enurethatotherervicerepreentativeandcutomerperonnelarenot
inapoitionthatwouldcreateahazardforthem.
•Placeremovedcoverandotherpartinaafeplace,awayfromallperonnel,whileyouareervicingthe
computer.
•Keepyourtoolcaeawayfromareathatpeoplemaywalkthroughtoenureno-onetripoverit.
•Donotwearlooeclothingthatcanbetrappedinthemovingpartofamachine.Enurethatyourleeve
arefatenedorrolledupaboveyourelbow.Ifyourhairilong,tieorfatenitback.
•Inerttheendofyournecktieorcarfinideclothingorfatenitwithanon-conductiveclip,
approximately8centimeter(3inche)fromtheend.
•Donotwearjewelry,chain,metal-frameeyeglae,ormetalfatenerforyourclothing.
Remember:Metalobjectaregoodelectricalconductor.
•Wearafetyglaewhenyouare:hammering,drillingoldering,cuttingwire,attachingpring,uing
olvent,orworkinginanyotherconditionthatmightbehazardoutoyoureye.
•Afterervice,reintallallafetyhield,guard,label,andgroundwire.Replaceanyafetydevice
thatiwornordefective.
•Reattachallcovercorrectlybeforereturningthecomputertothecutomer.
Eectricasafety
CAUTION:
Eectricacurrentfrompower,teephone,andcommunicationcabescanbehazardous.T oavoid
personainjuryorequipmentdamage,disconnectanyattachedpowercords,teecommunication
cabes,networkcabes,andmodemcabesbeforeyouopenthecomputercovers,unessinstructed
otherwiseintheinstaationandconfigurationprocedures.
©CopyrightLenovo20143

Obervethefollowingrulewhenworkingonelectricalequipment.
Important:Ueonlyapprovedtoolandtetequipment.Somehandtoolhavehandlecoveredwithaoft
materialthatdoenotinulateyouwhenworkingwithliveelectricalcurrent.Manycutomerhaverubber
floormatneartheirequipmentthatcontainmallconductivefibertodecreaeelectrotaticdicharge.
•Findtheroomemergencypower-off(EPO)witch,diconnectingwitch,orelectricaloutlet.Ifanelectrical
accidentoccur,youcanthenoperatethewitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardouconditionornearequipmentthathahazardouvoltage.
•Diconnectallpowerbefore:
–Performingamechanicalinpection
–Workingnearpowerupplie
–RemovingorintallingFieldReplaceableUnit(FRU)
•Beforeyoutarttoworkonthecomputer,unplugthepowercord.Ifyoucannotunplugit,akthe
cutomertopower-offtheelectricaloutletthatuppliepowertothemachineandtolocktheelectrical
outletintheoffpoition.
•Ifyouneedtoworkonacomputerthathaexpoedelectricalcircuit,obervethefollowingprecaution:
–Enurethatanotherperon,familiarwiththepower-offcontrol,inearyou.
Remember:Anotherperonmutbetheretowitchoffthepower,ifneceary.
–Ueonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremutbeacompletecircuittocaueelectricalhock.Byobervingtheaboverule,
youmaypreventacurrentfrompaingthroughyourbody.
–Whenuingateter,etthecontrolcorrectlyanduetheapprovedprobeleadandacceoriefor
thatteter.
–Standonuitablerubbermat(obtainedlocally,ifneceary)toinulateyoufromgrounducha
metalfloortripandmachineframe.
Obervethepecialafetyprecautionwhenyouworkwithveryhighvoltage;theeintructionarein
theafetyectionofthemaintenanceinformation.Ueextremecarewhenmeauringhighvoltage.
•Regularlyinpectandmaintainyourelectricalhandtooltoenuretheyareafetoue.
•Donotuewornorbrokentoolandteter.
•Neverassumethatpowerhabeendiconnectedfromacircuit.Firt,checkthatithabeenpoweredoff.
•Alwaylookcarefullyforpoiblehazardinyourworkarea.Exampleoftheehazardarewetfloor,
non-groundedpowerextenioncable,conditionthatmaycaueorallowpowerurge,andmiing
afetyground.
•Donottouchliveelectricalcircuitwiththereflectiveurfaceofaplaticdentalmirror.Thiurfacei
conductive,andtouchingalivecircuitcancaueperonalinjuryanddamagetothecomputer.
•Donotervicethefollowingpartwiththepoweronwhentheyareremovedfromtheirnormaloperating
poitioninacomputer:
–Powerupplyunit
–Pump
–Blowerandfan
–Motorgenerator
andimilarunit.(Thipracticeenurecorrectgroundingoftheunit.)
•Ifanelectricalaccidentoccur:
–Uecaution;donotbecomeavictimyourelf.
4LenovoB50–35All-In-OneComputerHardwareMaintenanceManual