Lenovo IdeaCentre A720 Manual del propietario

IdeaCentreA720

HardwareMaintenanceManual

ideaideaideaCentreidea

IdeaCentreA720

HardwareMaintenanceManual

Contents

Chapter1.Aboutthismanual......1

ImportantSafetyInformation..........1

Chapter2.Safetyinformation......3

Generalsafety................3

Electricalsafety...............3

Safetyinspectionguide............5

Handlingelectrostaticdischarge-sensitive

devices..................5

Groundingrequirements............6

Safetynotices................6

Chapter3.Generalinformation.....9

Specications................9

Chapter4.GeneralCheckout.....11

Chapter5.UsingtheSetupUtility...13

StartingtheLenovoBIOSSetupUtilityprogram.13

Viewingandchangingsettings........13

Usingpasswords..............13

Enablingordisablingadevice........15

Selectingastartupdevice..........16

ExitingtheLenovoBIOSSetupUtilityprogram..17

Chapter6.Symptom-to-FRUIndex..19

Harddiskdrivebooterror..........19

PowerSupplyProblems...........19

POSTerrorcodes.............20

Undeterminedproblems...........20

Chapter7.Locatingconnectors,

controlsandcomponents......21

Chapter8.Replacinghardware....29

Generalinformation.............29

Replacingthekeyboardandmouse......30

Replacingthepowercordorpoweradapter...30

Removingthebasecover..........31

Replacingtheharddiskdrive.........32

Replacingamemorymodule.........34

Replacingthesystemfan..........34

Replacingtheheat-sink...........35

ReplacingtheCPU.............36

Replacingtheopticaldrive..........38

Replacingthesolidstatedisk.........40

Replacingtheopticaldriveejectboard.....40

Replacingthemotherboard..........41

Replacingthespeakersystem........43

ReplacingtheTVtunercard.........45

Replacingthebattery............46

Removingthehingefromthechassis......47

Removingtherearcover...........49

Replacingthescalarboard..........50

Replacingthetouchcontrolboard.......52

Replacingtheconverterboard........53

Replacingthepowerswitchboard.......54

ReplacingtheBluetoothmodule........55

ReplacingtheWLANcard..........56

Replacingthecamera............57

Replacingthefrontfunctionboard.......58

ReplacingtheLEDpanel...........59

FRUlists.................61

Chapter9.Generalinformation....69

AdditionalServiceInformation........69

©CopyrightLenovo2012iii

ivIdeaCentreA720HardwareMaintenanceManual

Chapter1.Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforIdeaCentreA720computerslistedonthecover.

ItisintendedonlyfortrainedservicerswhoarefamiliarwithLenovocomputerproducts.

BeforeservicingaLenovoproduct,besuretoreadtheSafetyInformation.

ThedescriptionoftheTV-tunercardinthismanualappliesonlytocomputerswithaTV-tunercardinstalled.

ItdoesnotapplytocomputerswithoutaTV-tunercard.

ImportantSafetyInformation

BesuretoreadallCAUTIONandDANGERsectionsinthismanualbeforefollowinganyoftheinstructions.

VeuillezliretouteslesconsignesdetypeDANGERetATTENTIONduprésentdocumentavantd’exécuter

lesinstructions.

LesenSieunbedingtalleHinweisevomTyp“ACHTUNG”oder“VORSICHT”indieserDokumentation,bevor

SieirgendwelcheVorgängedurchführen

LeggereleistruzioniintrodottedaATTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna

qualsiasidelleistruzioni

Certique-sedelertodasasinstruçõesdecuidadoeperigonestemanualantesdeexecutarqualquer

umadasinstruções

Esimportantequeleatodaslasdeclaracionesdeprecauciónydepeligrodeestemanualantesdeseguir

lasinstrucciones.

©CopyrightLenovo20121

2IdeaCentreA720HardwareMaintenanceManual

Chapter2.Safetyinformation

Thischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.

Generalsafety

Followtheserulestoensuregeneralsafety:

•Keeptheareasaroundthecomputerclearandcleanduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Ensureyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallyacrossbothfeet.

3.Liftslowly.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe

musclesinyourback.

Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjectsthatyouthinkare

tooheavyforyou.

•Donotperformanyactionthatwouldcreateahazardforthecustomer,orwouldmakethecomputer

unsafe.

•Beforeyoustartthecomputer,ensurethatotherservicerepresentativesandcustomerpersonnelarenot

inapositionthatwouldcreateahazardforthem.

•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicingthe

computer.

•Keepyourtoolcaseawayfromareasthatpeoplemaywalkthroughtoensureno-onetripsoverit.

•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Ensurethatyoursleeves

arefastenedorrolledupaboveyourelbows.Ifyourhairislong,tieorfastenitback.

•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,approximately

8centimeters(3inches)fromtheend.

•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing.

Remember:Metalobjectsaregoodelectricalconductors.

•Wearsafetyglasseswhenyouare:hammering,drillingsoldering,cuttingwire,attachingsprings,using

solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.

•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice

thatiswornordefective.

•Reattachallcoverscorrectlybeforereturningthecomputertothecustomer.

Electricalsafety

CAUTION:

Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.Toavoid

personalinjuryorequipmentdamage,disconnectanyattachedpowercords,telecommunication

cables,networkcables,andmodemcablesbeforeyouopenthecomputercovers,unlessinstructed

otherwiseintheinstallationandcongurationprocedures.

©CopyrightLenovo20123

Observethefollowingruleswhenworkingonelectricalequipment.

Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft

materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershaverubber

oormatsneartheirequipmentthatcontainsmallconductiveberstodecreaseelectrostaticdischarge.

•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical

accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.

•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.

•Disconnectallpowerbefore:

–Performingamechanicalinspection

–Workingnearpowersupplies

–RemovingorinstallingFieldReplaceableUnits(FRUs)

•Beforeyoustarttoworkonthecomputer,unplugthepowercord.Ifyoucannotunplugit,askthe

customertopower-offtheelectricaloutletthatsuppliespowertothemachineandtolocktheelectrical

outletintheoffposition.

•Ifyouneedtoworkonacomputerthathasexposedelectricalcircuits,observethefollowingprecautions:

–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.

Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.

–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour

pocketorbehindyourback.

Remember:Theremustbeacompletecircuittocauseelectricalshock.Byobservingtheaboverule,

youmaypreventacurrentfrompassingthroughyourbody.

–Whenusingatester,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor

thattester.

–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas

metaloorstripsandmachineframes.

Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein

thesafetysectionsofthemaintenanceinformation.Useextremecarewhenmeasuringhighvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolstoensuretheyaresafetouse.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsarewetoors,

non-groundedpowerextensioncables,conditionsthatmaycauseorallowpowersurges,andmissing

safetygrounds.

•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thissurfaceis

conductive,andtouchingalivecircuitcancausepersonalinjuryanddamagetothecomputer.

•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating

positionsinacomputer:

–Powersupplyunits

–Pumps

–Blowersandfans

–Motorgenerators

andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)

•Ifanelectricalaccidentoccurs:

–Usecaution;donotbecomeavictimyourself.

4IdeaCentreA720HardwareMaintenanceManual

Otros manuales para IdeaCentre A720

Tabla de contenidos

Otros manuales de De oficina de Lenovo

Lenovo

Lenovo ThinkCentre M50e Manual de usuario

Lenovo

Lenovo ThinkCentre M72z Manual de usuario

Lenovo

Lenovo ThinkCentre Edge 71 Guía de solución de problemas

Lenovo

Lenovo ThinkCentre Edge 72 Guía de referencia

Lenovo

Lenovo ThinkCentre M90z Manual de usuario

Lenovo

Lenovo 27IAH7 Manual del propietario

Lenovo

Lenovo ThinkStation C30 Manual de capacitación

Lenovo

Lenovo C40 Series Manual del propietario

Lenovo

Lenovo IdeaCentre B510 Manual de usuario

Lenovo

Lenovo IdeaCentre B520e Manual de lista de piezas

Lenovo

Lenovo ThinkCentre A58 Manual de usuario

Lenovo

Lenovo ThinkCentre Manual del propietario

Lenovo

Lenovo ThinkStation E30 Guía de referencia

Lenovo

Lenovo H430 Manual de lista de piezas

Lenovo

Lenovo ThinkStation C30 Documento técnico

Lenovo

Lenovo HORIZON 2e Manual de usuario

Lenovo

Lenovo IdeaCentre 3 Manual de usuario

Lenovo

Lenovo IdeaCentre B345 Manual del propietario

Lenovo

Lenovo ThinkStation C20 Manual de usuario

Lenovo

Lenovo 739355U Manual de usuario

Lenovo

Lenovo A600 - IdeaCentre 3011 6DU All-in-One PC Guía de inicio rápido

Lenovo

Lenovo ThinkCentre A62 Manual de usuario

Lenovo

Lenovo ThinkCentre M70e Manual de usuario

Lenovo

Lenovo ThinkCentre A51 Manual de usuario

Manuales populares de De oficina de otras marcas

HP m9060n - Pavilion - Elite Hoja de especificaciones

Asus

Asus E210 Series Manual de usuario

Dell

Dell Inspiron 600m Manual de usuario

Dell

Dell Inspiron 3662 Manual de usuario

TotalFlow

TotalFlow uFLO Manual de usuario

HP Presario SV7000 - Desktop PC Manual de usuario

HP ProDesk 400 G5 Manual

Logitech

Logitech MK320 Manual de usuario

Dell

Dell XPS 730 H2C Manual de usuario

Sony

Sony Vaio Series Manual de usuario

Sony

Sony VGC-LT32E - Vaio All-in-one Desktop Computer Manual de usuario

Alto

Alto MD 250 Manual de usuario

Arbor Technology

Arbor Technology FPC-7800 Series Manual de usuario

Sony

Sony VAIO VGX-TP1 Series Manual de usuario

Asus

Asus Eee Box B204 Manual de usuario

Dell

Dell Optiplex 9010 All In One Manual de usuario

HP Z1 Manual de usuario

Everex

Everex eXplora Manual de usuario