Lenovo Horizon 2 User Manual

IdeaCentreHorizon227All-In-OnePC
HardwareMaintenanceManual

MachineTypes:F0AQ

IdeaCentreHorizon227All-In-OnePC
HardwareMaintenanceManual

MachineTypes:F0AQ

SecondEdition(May2014)27th

©CopyrightLenovo2014.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwarearedeliveredpursuantaGeneralServices
Administration“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.
GS-35F-05925

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

Specifications................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.Replacinghardware....21

Generalinformation.............21

Replacingthekeyboardandmouse......22

Removingtherearcover...........22

Replacingthebattery............24

Replacingamemorymodule.........25

ReplacingtheWi-Ficard...........26

Replacingtheharddiskdrive.........27

Replacingthefanmodule..........29

Replacingtheheat-sinkmodules.......29

Replacingthespeakersystem........30

ReplacingtheI/Oboard...........31

Replacingthepowerswitchboard.......32

Replacingthemotherboard..........33

Replacingthecamera............34

ReplacingtheLEDpanelmodule.......35

Chapter8.FRUlists..........37

Chapter9.Generalinformation....43

AdditionalServiceInformation........43

©CopyrightLenovo2014

iii

ivIdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter1.Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforIdeaCentreHorizon227All-In-Onecomputers
listedonthecover.ItisintendedonlyfortrainedservicerswhoarefamiliarwithLenovocomputerproducts.

BeforeservicingaLenovoproduct,besuretoreadtheSafetyInformation.

ThedescriptionoftheTV-tunercardinthismanualappliesonlytocomputerswithaTV-tunercardinstalled.
ItdoesnotapplytocomputerswithoutaTV-tunercard.

ImportantSafetyInformation

BesuretoreadallCAUTIONandDANGERsectionsinthismanualbeforefollowinganyoftheinstructions.

VeuillezliretouteslesconsignesdetypeDANGERetA TTENTIONduprésentdocumentavantd’exécuter
lesinstructions.

LesenSieunbedingtalleHinweisevomT yp“ACHTUNG”oder“VORSICHT”indieserDokumentation,bevor
SieirgendwelcheVorgängedurchführen

LeggereleistruzioniintrodottedaA TTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna
qualsiasidelleistruzioni

Certifique-sedelertodasasinstruçõesdecuidadoeperigonestemanualantesdeexecutarqualquer
umadasinstruções

Esimportantequeleatodaslasdeclaracionesdeprecauciónydepeligrodeestemanualantesdeseguir
lasinstrucciones.

©CopyrightLenovo2014

1

2IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter2.Safetyinformation

Thischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.

Generalsafety

Followtheserulestoensuregeneralsafety:

•Keeptheareasaroundthecomputerclearandcleanduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Ensureyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallyacrossbothfeet.

3.Liftslowly.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.

Donotattempttoliftanyobjectsthatweighmorethan16kg(35lbs.)orobjectsthatyouthink
aretooheavyforyou.

•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.T oavoid
personalinjuryorequipmentdamage,disconnectanyattachedpowercords,telecommunication
cables,networkcables,andmodemcablesbeforeyouopenthecomputercovers,unlessinstructed
otherwiseintheinstallationandconfigurationprocedures.

©CopyrightLenovo2014

3

Observethefollowingruleswhenworkingonelectricalequipment.

Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershaverubber
floormatsneartheirequipmentthatcontainsmallconductivefiberstodecreaseelectrostaticdischarge.

•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

metalfloorstripsandmachineframes.

Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein
thesafetysectionsofthemaintenanceinformation.Useextremecarewhenmeasuringhighvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolstoensuretheyaresafetouse.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsarewetfloors,
non-groundedpowerextensioncables,conditionsthatmaycauseorallowpowersurges,andmissing
safetygrounds.

•Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thissurfaceis
conductive,andtouchingalivecircuitcancausepersonalinjuryanddamagetothecomputer.

•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
positionsinacomputer:

–Powersupplyunits

–Pumps

–Blowersandfans

–Motorgenerators

andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)

•Ifanelectricalaccidentoccurs:

–Usecaution;donotbecomeavictimyourself.

4IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

–Switchoffpower.

–Sendanotherpersontogetmedicalaid.

Safetyinspectionguide

Theintentofthisinspectionguideistoassistyouinidentifyingpotentialhazardsposedbytheseproducts.
Eachcomputer,asitwasdesignedandbuilt,hadrequiredsafetyitemsinstalledtoprotectusersand
servicepersonnelfrominjury.Thisguideaddressesonlythoseitems.However,goodjudgmentshouldbe
usedtoidentifypotentialsafetyhazardsduetoattachmentoffeaturesoroptionsnotcoveredbythis
inspectionguide.

Ifanyhazardsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeandwhetheryou
cancontinuewithoutfirstresolvingtheproblem.

Considerthefollowingitemsandthesafetyhazardstheypresent:

•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock).

•Explosivehazards,suchasadamagedCRTfaceorbulgingcapacitor

•Mechanicalhazards,suchaslooseormissinghardware

Theguideconsistsofaseriesofstepspresentedasachecklist.Beginthecheckswiththepoweroff,and
thepowercorddisconnected.

Checklist:

1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).

2.Power-offthecomputer.Disconnectthepowercord.

3.Checkthepowercordfor:

a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground

continuityfor0.1ohmorlessbetweentheexternalgroundpinandframeground.

b.Thepowercordshouldbetheappropriatetypeasspecifiedinthepartslistings.

c.Insulationmustnotbefrayedorworn.

4.Removethecover.

5.Checkforanyobviousalterations.Usegoodjudgmentastothesafetyofanyalterations.

6.Checkinsidetheunitforanyobvioushazards,suchasmetalfilings,contamination,waterorother
liquids,orsignsoffireorsmokedamage.

7.Checkforworn,frayed,orpinchedcables.

8.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.

Handlingelectrostaticdischarge-sensitivedevices

Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthecomputer,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.

Notes:

1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.

2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.

WhenhandlingESD-sensitiveparts:

Chapter2.Safetyinformation5

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

•Avoidcontactwithotherpeoplewhilehandlingthepart.

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.

•Usetheblacksideofagroundedworkmattoprovideastatic-freeworksurface.Thematisespecially
usefulwhenhandlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.

Note:TheuseofagroundingsystemisdesirablebutnotrequiredtoprotectagainstESDdamage.

–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.

–UseanESDcommongroundorreferencepointwhenworkingonadouble-insulatedor

battery-operatedsystem.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundground-prongoftheACplugonAC-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.

Safetynotices

TheCAUTIONandDANGERsafetynoticesinthissectionareprovidedinthelanguageofEnglish.

DANGER

Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.

Toavoidashockhazard:

•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration
ofthisproductduringanelectricalstorm.

•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.

•Connectanyequipmentthatwillbeattachedtothisproducttoaproperlywiredoutlet.

•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.

•Neverturnonanyequipmentwhenthereisevidenceoffire,water,orstructuraldamage.

•Disconnecttheattachedpowercords,telecommunicationscables,networkcables,andmodem

cablesbeforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationand
configurationprocedures.

•Connectanddisconnectcablesasdescribedinthefollowingtablewheninstalling,moving,or
openingcoversonthisproductorattacheddevices.

6IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

ToConnect

1.T urneverythingOFF .

2.First,attachallcablestodevices.

3.Attachsignalcablestoconnectors.

4.Attachpowercordstooutlet.

5.T urndeviceON.

ToDisconnect

1.T urneverythingOFF .

2.First,removepowercordsfromoutlets.

3.Removesignalcablesfromconnectors.

4.Removeallcablesfromdevices.

CAUTION:
Whenreplacingthelithiumbattery,useonlyPartNumber45C1566oranequivalenttypebattery
recommendedbythemanufacturer.Ifyoursystemhasamodulecontainingalithiumbattery,replace
itonlywiththesamemoduletypemadebythesamemanufacturer.Thebatterycontainslithiumand
canexplodeifnotproperlyused,handled,ordisposedof.

Donot:

•Throwintoorimmerseinwater

•Heattomorethan100°C(212°F)

•Repairordisassemble

Disposeofthebatteryasrequiredbylocalordinancesorregulations.

CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVD-ROMdrives,fiberopticdevices,ortransmitters)are
installed,notethefollowing:

•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.

•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
mightresultinhazardousradiationexposure.

DANGER

SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:

Thesediodesemitradiationwhenopen.Donotstareintothebeam,donotviewdirectlywith
opticalinstruments,andavoiddirectexposuretothebeam.

Chapter2.Safetyinformation7

≥18kg(37lbs)≥32kg(70.5lbs)≥55kg(121.2lbs)

1

2

CAUTION:
Usesafepracticeswhenlifting.

CAUTION:
Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedevice.Thedevicealsomighthavemorethanonepower
cord.T oremoveallelectricalcurrentfromthedevice,ensurethatallpowercordsaredisconnected
fromthepowersource.

CAUTION:
Donotplaceanyobjectweighingmorethan82kg(180lbs.)ontopofrack-mounteddevices.

8IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter3.Generalinformation

Thischapterprovidesgeneralinformationthatappliestoallcomputermodelscoveredbythismanual.

Specifications

Thissectionliststhephysicalspecificationsforyourcomputer.

Thissectionliststhephysicalspecificationsforyourcomputer .

TypeIdeaCentreHorizon227

Thissectionliststhephysicalspecifications.

Environment

Airtemperature:

Operating:10°to35°C

Transit:-20°to55°C

Humidity:

Operating:35%to80%

Transit:20%to90%(40°C)

Altitude:86KPato106KPa

Electricalinput:

Inputvoltage:90V-264V(AC)

Inputfrequency:47Hz-63Hz

©CopyrightLenovo2014

9

10IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter4.GeneralCheckout

Attention:Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartup

sequencemayhavebeenchanged.Beextremelycarefulduringwriteoperationssuchascopying,saving,or
formatting.Dataorprogramscanbeoverwrittenifyouselectanincorrectdrive.

Generalerrormessagesappearifaproblemorconflictisfoundbyanapplication,theoperatingsystem,or
both.Foranexplanationofthesemessages,refertotheinformationsuppliedwiththatsoftwarepackage.

Usethefollowingproceduretohelpdeterminethecauseoftheproblem:

1.Power-offthecomputerandallexternaldevices.

2.Checkallcablesandpowercords.

3.Setalldisplaycontrolstothemiddleposition.

4.Power-onallexternaldevices.

5.Power-onthecomputer.

•Lookfordisplayederrorcodes.

•Lookforreadableinstructionsoramainmenuonthedisplay.

Ifyoudidnotreceivethecorrectresponse,proceedtostep6.

Ifyoudidreceivethecorrectresponse,proceedtostep7.

6.Ifoneofthefollowinghappens,followtheinstructiongiven:

•IfthecomputerdisplaysaPOSTerror,goto“POSTerrorcodes” .

•Ifthecomputerhangsandnoerrorisdisplayed,continueatstep7.

7.Iftheteststopsandyoucannotcontinue,replacethelastdevicetested.

©CopyrightLenovo2014

11

12IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter5.UsingtheSetupUtility

TheSetupUtilityprogramisusedtoviewandchangetheconfigurationsettingsofyourcomputer,regardless
ofwhichoperatingsystemyouareusing.However,theoperatingsystemsettingsmightoverrideanysimilar
settingsintheSetupUtilityprogram.

StartingtheLenovoBIOSSetupUtilityprogram

TostarttheLenovoBIOSSetupUtilityprogram,dothefollowing:

1.Ifyourcomputerisalreadyonwhenyoustartthisprocedure,shutdowntheoperatingsystemand
turnoffthecomputer.

2.PressandholdtheF1keythenturnonthecomputer.WhentheLenovoBIOSSetupUtilityprogramis
displayed,releasetheF1key.

Note:IfaPower-OnPasswordoranAdministratorPasswordhasbeenset,theSetupUtilityprogrammenu
willnotbedisplayeduntilyoutypeyourpassword.Formoreinformation,see“Usingpasswords. ”

Viewingandchangingsettings

SystemconfigurationoptionsarelistedintheLenovoBIOSSetupUtilityprogrammenu.T ovieworchange
settings,see“StartingtheSetupUtilityprogram.”

YoumustusethekeyboardwhenusingtheLenovoBIOSSetupUtilitymenu.Thekeysusedtoperform
varioustasksaredisplayedonthebottomofeachscreen.

Usingpasswords

YoucanusetheLenovoBIOSSetupUtilityprogramtosetpasswordstopreventunauthorizedpersons
fromgainingaccesstoyourcomputeranddata.See“StartingtheSetupUtilityprogram.”Thefollowing
typesofpasswordsareavailable:

•AdministratorPassword

•Power-OnPassword

Youdonothavetosetanypasswordstouseyourcomputer.However,ifyoudecidetosetpasswords,read
thefollowingsections.

Passwordconsiderations

Apasswordcanbeanycombinationoflettersandnumbersupto16characters(a-zand0-9).Forsecurity
reasons,itisagoodideatouseastrongpasswordthatcannotbeeasilycompromised.Wesuggestthat
passwordsshouldfollowtheserules:

•Forastrongpassword,use7-16charactersandamixoflettersandnumbers.

•Donotuseyournameoryourusername.

•Donotuseacommonwordoracommonname.

•Usesomethingsignificantlydifferentfromyourpreviouspassword.

Attention:AdministratorandPower-Onpasswordsarenotcasesensitive.

©CopyrightLenovo2014

13

AdministratorPassword

SettinganAdministratorPassworddetersunauthorizedpersonsfromchangingconfigurationsettings.Y ou
mightwanttosetanAdministratorPasswordifyouareresponsibleformaintainingthesettingsofseveral
computers.

AfteryousetanAdministratorPassword,apasswordpromptisdisplayedeverytimeyouaccesstheLenovo
BIOSSetupUtilityprogram.

IfboththeAdministratorandPower-OnPasswordareset,youcantypeeitherpassword.However,youmust
useyourAdministratorPasswordtochangeanyconfigurationsettings.

Setting,changing,ordeletinganAdministratorPassword

TosetanAdministratorPassword,dothefollowing:

Note:Apasswordcanbeanycombinationoflettersandnumbersupto16characters(a-zand0-9).For
moreinformation,see“Passwordconsiderations”onpage13.

1.StarttheLenovoBIOSSetupUtilityprogram(see“StartingtheLenovoBIOSSetupUtilityprogram”on
page13).

2.FromtheSecuritymenu,selectSetAdministratorPasswordandpresstheEnterkey.

3.Thepassworddialogboxwillbedisplayed.T ypethepasswordthenpresstheEnterkey.

4.Retypethepasswordtoconfirm,thenpresstheEnterkey.Ifyoutypedthepasswordcorrectly,the
passwordwillbeinstalled.ASetupNoticewillbedisplayedconfirmingthatyourchangeshasbeen
saved.

5.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.

6.SelectSaveChangesandExitfromthemenu.

TochangeanAdministratorPassword,dothefollowing:

1.StarttheLenovoBIOSSetupUtilityprogram(see“StartingtheLenovoBIOSSetupUtilityprogram”on
page13).

2.FromtheSecuritymenu,selectSetAdministratorPasswordandpresstheEnterkey.

3.Thepassworddialogboxwillbedisplayed.TypethecurrentpasswordthenpresstheEnterkey.

4.Typethenewpassword,thenpresstheEnterkey.Retypethenewpasswordtoconfirmit.Ifyoutyped
thenewpasswordcorrectly,thenewpasswordwillbeinstalled.ASetupNoticewillbedisplayed
confirmingthatyourchangeshavebeensaved.

5.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.

6.SelectSaveChangesandExitfromthemenu.

TodeleteapreviouslysetAdministratorPassword,dothefollowing:

1.StarttheLenovoBIOSSetupUtilityprogram(see“StartingtheLenovoBIOSSetupUtilityprogram”on
page13).

2.FromtheSecuritymenu,selectSetAdministratorPasswordandpresstheEnterkey.

3.Thepassworddialogboxwillbedisplayed.T ypethecurrentpasswordandpresstheEnterkey.

4.Leaveeachnewpasswordlineitemblank,thenpresstheEnterkey.ASetupNoticewillbedisplayed
confirmingthatyourchangeshavebeensaved.

5.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.

6.SelectSaveChangesandExitfromthemenu.

14IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Power-OnPassword

WhenaPower-OnPasswordisset,youcannotstarttheLenovoBIOSSetupUtilityprogramuntilavalid
passwordistypedfromthekeyboard.

Setting,changing,ordeletingaPower-OnPassword

Note:Apasswordcanbeanycombinationoflettersandnumbersupto16characters(a-zand0-9).

TosetaPower-OnPassword,dothefollowing:

1.StarttheLenovoBIOSSetupUtilityprogram(see”StartingtheLenovoBIOSSetupUtilityprogram”on
page13).

2.FromtheSecuritymenu,selectSetPower-OnPasswordandpresstheEnterkey.

3.Thepassworddialogboxwillbedisplayed.T ypethepassword,thenpresstheEnterkey.

4.Retypethepasswordtoconfirm.Ifyoutypedthepasswordcorrectly,thepasswordwillbeinstalled.

5.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.

6.SelectSaveChangesandExitfromthemenu.

TochangeaPower-OnPassword,dothefollowing:

1.StarttheLenovoBIOSSetupUtilityprogram(see”StartingtheLenovoBIOSSetupUtilityprogram”on
page13).

2.FromtheSecuritymenu,selectSetPower-OnPasswordandpresstheEnterkey.

3.Thepassworddialogboxwillbedisplayed.TypethecurrentpasswordthenpresstheEnterkey.

4.Typethenewpassword,thenpresstheEnterkey.Retypethenewpasswordtoconfirmit.Ifyoutyped
thenewpasswordcorrectly,thenewpasswordwillbeinstalled.ASetupNoticewillbedisplayed
confirmingthatyourchangeshavebeensaved.

5.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.

6.SelectSaveChangesandExitfromthemenu.

TodeleteapreviouslysetPower-OnPassword,dothefollowing:

1.StarttheLenovoBIOSSetupUtilityprogram(see”StartingtheLenovoBIOSSetupUtilityprogram”on
page13).

2.FromtheSecuritymenu,selectSetPower-OnPasswordandpresstheEnterkey.

3.Thepassworddialogboxwillbedisplayed.T ypethecurrentpasswordandpresstheEnterkey.

4.Leaveeachnewpasswordlineitemblank,thenpressEnter.ASetupNoticewillbedisplayedconfirming
thatyourchangeshavebeensaved.

5.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.

6.SelectSaveChangesandExitfromthemenu.

Enablingordisablingadevice

TheDevicesoptionsisusedtoenableordisableuseraccesstothefollowing:

USBFunctionsSelectwhethertoenableordisableUSB(UniversalSerial

Bus)functions.Ifthefunctionsaredisabled,noUSB
devicescanbeused.

Chapter5.UsingtheSetupUtility15

SATAModeSelectDisabled/IDE/AHCImode.Devicedriversupport

isrequiredforAHCIorRAID.Dependingonhowthehard
diskdriveimagewasinstalled,changingthissettingmay
preventthesystemfrombooting.

OnboardAudioControllerSelectwhethertoenableordisabletheOnboard

AudioController.WhenthisfeatureissettoDisabled

alldevicesconnectedtotheaudioconnectors(e.g.
headphonesoramicrophone)aredisabledandcannot
beused.

Toenableordisableadevice,dothefollowing:

1.StarttheSetupUtilityprogram(see“StartingtheSetupUtilityprogram”onpage13).

2.FromtheSetupUtilityprogrammenu,selectDevices.

3.Selectanoptionasfollows:

SelectUSBSetup,presstheEnterkey,thenselectUSBFunctions.

SelectATADriversSetup,presstheEnterkey,thenselectSA T AMode.

SelectAudioSetup,presstheEnterkey,thenselectOnboardAudioController.

4.SelectDisabledorEnabledandpresstheEnterkey.

5.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.

6.SelectSaveChangesandExitfromthemenu.

Notes:

a.Ifyoudonotwanttosavethesettings,selectDiscardChangesandExitfromthemenu.

Selectingastartupdevice

IfyourcomputerdoesnotbootfromadevicesuchastheCD/DVD-ROMdrivediskorharddiskasexpected,
followoneoftheproceduresbelow.

Selectingatemporarystartupdevice

Usethisproceduretostartupfromanybootdevice.

Note:NotallCDs,DVDsorharddiskdrivesarebootable.

1.Turnoffyourcomputer.

2.PressandholdtheF12keythenturnonthecomputer.WhentheStartupDeviceMenuappears,
releasetheF12key.

Note:IftheStartupDeviceMenudoesnotdisplayusingthesesteps,repeatedlypressandreleasethe
F12keyratherthankeepingitpressedwhenturningonthecomputer.

3.Use↑and↓arrowstoselectthedesiredstartupdevicefromtheStartupDeviceMenuandpress
theEnterkeytobegin.

Note:SelectingastartupdevicefromtheStartupDeviceMenudoesnotpermanentlychangethe
startupsequence.

Selectingorchangingthestartupdevicesequence

Tovieworpermanentlychangetheconfiguredstartupdevicesequence,dothefollowing:

16IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

1.StarttheLenovoBIOSSetupUtilityprogram(see“StartingtheLenovoBIOSSetupUtilityprogram”on
page13).

2.FromtheLenovoBIOSSetupUtilityprogrammainmenu,selecttheStartupoption.

3.PresstheEnterkey,andselectthedevicesforthePrimaryBootSequence.Readtheinformation
displayedontherightsideofthescreen.

4.Use↑and↓arrowstoselectadevice.Usethe<+>or<->keystomoveadeviceupordown.Usethe

<×>keytoexcludethedevicefromorincludethedeviceinthebootsequence.

5.ReturntotheLenovoBIOSSetupUtilityprogrammenuandselecttheExitoption.

6.SelectSaveChangesandExitfromthemenu.

Notes:

a.Ifyoudonotwanttosavethesettings,selectDiscardChangesandExitfromthemenu.

b.Ifyouhavechangedthesesettingsandwanttoreturntothedefaultsettings,selectLoadOptimal

Defaultsfromthemenu.

ExitingtheLenovoBIOSSetupUtilityprogram

Afteryoufinishviewingorchangingsettings,presstheEsckeytoreturntotheLenovoBIOSSetupUtility
programmainmenu.Y oumighthavetopresstheEsckeyseveraltimes.Dooneofthefollowing:

•Ifyouwanttosavethenewsettings,selectSaveChangesandExitfromthemenu.WhentheSave
&resetwindowshows,selecttheYesbutton,andthenpresstheEnterkeytoexittheLenovoBIOS
SetupUtilityprogram.

•Ifyoudonotwanttosavethesettings,selectDiscardChangesandExitfromthemenu.Whenthe
ResetWithoutSavingwindowshows,selecttheY esbutton,andthenpresstheEnterkeytoexitthe
LenovoBIOSSetupUtilityprogram.

Chapter5.UsingtheSetupUtility17

18IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter6.Symptom-to-FRUIndex

TheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedfirst.
AlwaysbeginwithChapter4,“GeneralCheckout, ”onpage11.Thisindexcanalsobeusedtohelpyou
decidewhichFRUstohaveavailablewhenservicingacomputer.Ifyouareunabletocorrecttheproblem
usingthisindex,goto“Undeterminedproblems”onpage20.

Notes:

•Ifyouhavebothanerrormessageandanincorrectaudioresponse,diagnosetheerrormessagefirst.

•Ifyoucannotrunthediagnostictestsoryougetadiagnosticerrorcodewhenrunningatestbutdid
receiveaPOSTerrormessage,diagnosethePOSTerrormessagefirst.

•Ifyoudidnotreceiveanyerrormessagelookforadescriptionofyourerrorsymptomsinthefirstpartof
thisindex.

Harddiskdrivebooterror

Aharddiskdrivebooterrorcanhavethefollowingcauses.

Error

Thestartupdriveisnotincludedinthebootsequence
configuration.

Nooperatingsystemisinstalledonthebootdrive.Installanoperatingsystemonthebootdrive.

Thebootsectoronthestartupdriveiscorrupted.

Thedriveisdefective.

FRU/Action

Checktheconfigurationandensurethestartupdriveis
inthebootsequence.

Thedrivemustbeformatted.Dothefollowing:

1.Attempttobackupthedataonthefailingharddisk
drive.

2.Usetheoperatingsystemtoformattheharddisk
drive.

Replacetheharddiskdrive.

PowerSupplyProblems

Followtheseproceduresifyoususpectthereisapowersupplyproblem.

Check/VerifyFRU/Action

Checkthatthefollowingareproperlyinstalled:

•PowerCord

•On/OffSwitchconnector

•SystemBoardPowerSupplyconnectors

•Microprocessorconnections

Checkthepowercord.PowerCord

Checkthepower-onswitch.Power-onSwitch

Reseatconnectors

©CopyrightLenovo2014

19

POSTerrorcodes

Eachtimeyouturnthecomputeron,itperformsaseriesofteststocheckthatthesystemisoperating
correctlyandthatcertainoptionsareset.ThisseriesoftestsiscalledthePower-OnSelf- T est,orPOST.
POSTdoesthefollowing:

•Checkssomebasicmotherboardoperations

•Checksthatthememoryisworkingcorrectly

•Startsvideooperations

•Verifiesthatthebootdriveisworking

POSTErrorMessageDescription/Action

Keyboarderror

RebootandSelectproperBootdeviceorInsertBoot
MediainselectedBootdevice

Cannotinitializethekeyboard.Makesurethekeyboard
isproperlyconnectedtothecomputerandthatnokeys
areheldpressedduringPOST.Topurposelyconfigure
thecomputerwithoutakeyboard,selectKeyboardless
operationinStartupandsettheoptiontoEnabled.The
BIOSthenignoresthemissingkeyboardduringPOST.

TheBIOSwasunabletofindasuitablebootdevice.Make
surethebootdriveisproperlyconnectedtothecomputer.
Makesureyouhavebootablemediainthebootdevice.

Undeterminedproblems

1.Power-offthecomputer.

2.Removeordisconnectthefollowingcomponents(ifconnectedorinstalled)oneatatime.

a.Externaldevices(modem,printer,ormouse)

b.Extendedvideomemory

c.ExternalCache

d.ExternalCacheRAM

e.Harddiskdrive

f.Diskdrive

3.Power-onthecomputertore-testthesystem.

4.Repeatsteps1through3untilyoufindthefailingdeviceorcomponent.

Ifalldevicesandcomponentshavebeenremovedandtheproblemcontinues,replacethesystemboard.

20IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter7.Replacinghardware

Attention:Donotremovethecomputercoverorattemptanyrepairbeforereadingthe“Importantsafetyinformation”

intheSafetyandWarrantyGuidethatwasincludedwithyourcomputer.ToobtaincopiesoftheSafetyandWarranty
Guide,gototheSupportWebsiteat:http://support.lenovo.com.

Note:UseonlypartsprovidedbyLenovo.

Generalinformation

Pre-disassemblyinstructions

Beforestartingthedisassemblyprocedure,makesurethatyoudothefollowing:

1.Turnoffthepowertothesystemandallperipherals.

2.Unplugallpowerandsignalcablesfromthecomputer.

3.Placethesystemonaflat,stablesurface.

©CopyrightLenovo2014

21

Replacingthekeyboardandmouse

Toreplacethekeyboardandmouse:

Step1.Removeanymedia(disks,CDs,DVDsormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Note:YourkeyboardwillbeconnectedtoaUSBconnectorononesideorattherearofthe
computer.

Step4.Disconnectthedefectivekeyboardcablefromthecomputerandconnectthenewkeyboardcable

tothesameconnector.

Note:Themousecanbereplacedusingthesamemethod.

Removingtherearcover

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Note:Itmaybehelpfultoplacethecomputerface-downonasoftflatsurfaceforthisprocedure.Lenovo

recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.

Toremovethebasecover:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

22IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Step4.Forthisprocedureitrequiresusingaflatheadscrewdriver.Useapieceofsoftclothestowrapthe

screwdriverheadbeforeproceeding.

Step5.Thefrontpanelandtherearcoverarepinedtogether,usethewrappedscrewdrivertopushintothe

holeasillustratedtoforcethefrontpanelseparatingfromtherearcover.Forthisprocedureitmight
requiresusingsomestrengthenswhilepushing.

1Workingalongthegapopenedin-betweenthe

frontpanelandtherearcovergentlytoseparatingthefrontpanelfromrearcover.2

Chapter7.Replacinghardware23

Step6.Disconnectthetwoscalarcablesfromtheconnectorsonthemotherboardasshown.12

Step7.Putthefrontpanelandrearcoveraside.

Step8.T oreattachtherearcover:

a.Lineupthefrontpanelwiththerearcover,andthenreconnectthetwoscalarcablestothe

motherboard.

b.Pressdownalongtheedgeoftherearcoverandsecuretherearcovertothefrontpanelwith

themountingpins.

Replacingthebattery

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplacethebattery:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

24IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Step5.Disconnectthepowercablefromtheconnectoronthemotherboard.1

Step6.Removethesixscrewsthatsecurethebatterytotherearcover2,thenliftupthebatterypack

asshown.

Step7.T oinstallanewbattery:

a.Lineuptheholeswithmountingholesontherearcover,thenplaceitintoposition.

b.Securethenewbatterytothechassiswiththesixscrews.

c.Connectthepowercabletotheconnectoronthemotherboard.

Step8.Reattachtherearcover.

Replacingamemorymodule

Attention:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplaceamemorymodule:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

Chapter7.Replacinghardware25

Step6.Pushoutthelatchesonbothsidesofthememorysockettoreleasethememorymodule.Gently

pullthememorymoduleupwardtoremoveitfromitssocket.

Step7.T oinstallthenewmemorymodule:

a.Alignthenewmemorymodulewiththememorysocket,theninsertitandpushdownon

thetopedge.

b.Makesurethelatcheslockthememorymoduleinplace.

c.Reconnectthebatterycabletotheconnectoronthemotherboard.

Step8.Reattachtherearcover.

ReplacingtheWi-Ficard

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

ToreplacetheWi-Ficard:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.RemovetheEMIcover.Referto“RemovingtheEMIcover”.

Step6.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

26IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Step7.RemovethescrewthatsecurestheWi-Ficardtothemotherboard.1

Step8.DisconnecttheantennacableanddatacablefromtheWi-Ficard.2

Step9.PulltheWi-Ficardupwardtoremoveitfromthecardport.3

Step10.ToinstallthenewWi-Ficard:

a.LineupthenewWi-Ficardwiththecardport,insertthecardintopositionandsecureit

withthescrew.

b.ReconnecttheantennaanddatacabletothenewWi-Ficard.

c.Reconnectthebatterycabletotheconnectoronthemotherboard.

Step11.Reattachtherearcover.

Replacingtheharddiskdrive

Attention:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplacetheharddiskdrive:

Step1.Removeanymedia(disks,CDs,DVDsormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

Chapter7.Replacinghardware27

Step6.Disconnectthedataandpowercablesfromtheharddiskdrive.1

Step7.Removethefourscrewsthatsecuretheharddiskdrivetothechassis,thenliftuptheharddisk

drivetoremoveit.2

Step8.Removethefourscrewsthatsecuretheharddiskdrivetothebracket.

Step9.Slidetheharddiskdriveoutofthebracket.

Step10.Installthenewharddiskdriveasfollows:

a.Slidethenewharddiskdriveintothebracket.

b.Securethenewharddiskdrivetothebracketwiththefourscrews.

c.Connectthedataandpowercablestothenewharddiskdrive.

d.Securethenewharddiskdriveandbrackettothechassiswiththefourscrews.

e.Reconnectthebatterycabletotheconnectoronthemotherboard.

28IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Step11.Reattachtherearcover.

Replacingthefanmodule

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplacethefanmodule:

Step1.Removeanymedia(disks,CDs,DVDsormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

Step6.Removethesixscrewsthatsecurethefanmoduletotherearcover.

Step7.Disconnectthepowercablesfromthemotherboard.

Step8.Liftupthefanmoduletoremoveit.

Step9.T oinstallthenewfanmodule:

a.Lineupthenewfanmodulewiththemountingholesontherearcoverandplaceitintoposition.

b.Securethenewfanmoduletotherearcoverwiththesixscrews.

c.Connectthenewpowercabletotheconnectorsonmotherboard.

d.Reconnectthebatterycabletotheconnectoronthemotherboard.

Step10.Reattachtherearcover.

Replacingtheheat-sinkmodules

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplacetheheat-sinkmodules:

Chapter7.Replacinghardware29

Step1.Removeanymedia(disks,CDs,DVDsormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

Step6.Removetheeightscrewsthatsecuretheheat-sinkmoduletothemotherboard.

Step7.Liftuptheheat-sinkmoduletoremoveit.

Attention:Placetheheat-sinkupsidedownonaflatsurfacetopreventthermalgreasefromcontaminating
othercomponents.

Step8.T oinstallthenewheat-sinkmodule:

a.UseanalcoholpadtowipethethermalgreaseofftheCPU.

b.Lineupthenewheat-sinkwithmountingholesonthemotherboard.

c.Securethenewheat-sinktothemotherboardwiththeeightscrews.

d.Attachthesystemfanstothenewheat-sinkandsecureitwiththescrews.

e.Reconnectthebatterycabletotheconnectoronthemotherboard.

Step9.Reattachtherearcover.

Replacingthespeakersystem

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplacethespeakersystem:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

30IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

Step6.Disconnectthespeakercablefromtheconnectoronthemotherboard.1

Step7.Pushtherubbermountingpinsoutwardtoreleasethespeaker.2

Step8.T oinstallthenewspeakersystem:

a.Attachthenewspeakersystemtothechassis,thensecureitwithmountingrubberpins.

b.Connectthenewspeakercabletotheconnectoronthemotherboard.

c.Reconnectthebatterycabletotheconnectoronthemotherboard.

Step9.Reattachtherearcover.

ReplacingtheI/Oboard

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

ToreplacetheI/Oboard:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

Chapter7.Replacinghardware31

Step6.Disconnectthepowerconnectorcablefromtheconnectoronthemotherboard.1

Step7.RemovethetwoscrewsthatsecuretheI/Oboardtotherearcover.2

Step8.SlideouttheI/OboardasshownanddisconnectthedatacablefromtheI/Oboard.3

Step9.T oinstallthenewI/Oboard:

a.ConnectthedatacabletoconnectoronthenewI/Oboard.

b.LineuptheholesonthenewI/OboardwiththemountingholesontheI/Oboardandsecure

theI/Oboardtotherearcoverwiththetwoscrews.

c.Connectthepowerconnectorcabletotheconnectoronthemotherboard.

d.Reconnectthebatterycabletotheconnectoronthemotherboard.

Step10.Reattachtherearcover.

Replacingthepowerswitchboard

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplacethepowerswitchboard:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

Step6.Disconnectthepowercablefromthepowerswitchboard.

32IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Step7.Removethetwoscrewsthatsecurethepowerswitchboardtotherearcover1,liftupthepower

switchboard

Step8.T oinstallthepowerswitchboard:

a.Connectthepowercabletothenewpowerswitchboard.

b.Securethepowerswitchboardtotherearcoverwiththetwoscrews.

c.Reconnectthebatterycabletotheconnectoronthemotherboard.

2anddisconnectthecablefromtheswitchboard.3

Step9.Reattachtherearcover.

Replacingthemotherboard

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplacethemotherboard:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .

Step6.Removethememorymodules.Referto“Replacingamemorymodule” .

Step7.Removetheheat-sinkmodules.Referto“Replacingtheheat-sinkmodules” .

Step8.Removeallthecablesconnectedtothemotherboard.12345678

Chapter7.Replacinghardware33

Step9.Removethesixscrewsthatsecurethemotherboardtotherearcoverandliftupthemotherboard

toremoveit.

Step10.Toinstallthenewmotherboard:

a.InsertthenotchedendoftheWi-Ficardintothecardportonthenewmotherboardand

secureitwiththescrew.

b.Connecttheantennacable(s)totheWi-Ficard.

c.Attachtheheat-sinkmodules,andthememorymodulestothemotherboard.

d.Aligntheholesonthenewmotherboardwiththemountingholesontherearcoverandsecure

themotherboardtotherearcoverwiththescrews.

e.Connectallthecablestothenewmotherboard.

Step11.Reattachtherearcover.

Replacingthecamera

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Toreplacethecamera:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

34IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Step5.Removethetwoscrewsthatsecurethecameraandbrackettothefrontbezel.Liftupthecamera

andbrackettoremoveit.

Step6.Removethecamerafrombracketbyremovingthetwoscrewsanddisconnectthedatacable

fromthecamera.

Step7.T oinstallthenewcamera:

a.Connectthedatacabletothenewcamera.

b.Securethenewcameratothebracketwiththetwoscrews.

c.Lineuptheholesinthebracketwiththemountingholesonthefrontbezelandsecurethe

newcamerawiththetwoscrews.

Step8.Reattachtherearcover.

ReplacingtheLEDpanelmodule

Note:T urnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.

Chapter7.Replacinghardware35

Note:Itmaybehelpfultoplacethecomputerface-downonasoftflatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.

ToreplacetheLEDpanelmodule:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removetherearcover.Referto“Removingtherearcover” .

Step5.Removethecamera.Referto“Replacingthecamera”.

Step6.Removeallthecablesattachedtothefrontbezel.

Step7.T oinstallthenewtheLEDpanel:

a.ConnectallthecablestotheconnectorsontheLEDpanelmodule.

b.AttachthecameratothenewLEDpanel.

Step8.Reattachtherearcover.

36IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter8.FRUlists

Thischapterliststheinformationonthefieldreplaceableunits(FRUs).

Attention:BesuretoreadandunderstandallthesafetyinformationbeforereplacinganyFRUs.

Notes:FRUsthathavea1or2intheCRUcolumnareCustomerReplaceableUnits(CRUs).

•1–identifiespartsthatarefairlysimpletoreplace,requiringfewornotools.

•2–identifiespartsthatareslightlymoredifficulttoreplace.

•N-identifiespartsthatarenottobereplacedbythecustomer.

Description

Motherboard

Description90005883N

W8SMULTi3-4010U2GMB

W8PMULTi3-4010U2GMB

W8SMi7-4510U2GMB

W8PMi5-4210U2GMB

W8SMi5-4210U2GMB

NOKMi5-4210U2GMB

W8PMi7-4510U2GMB

NOKMi7-4510U2GMB

NOKMi3-4010U2GSMB

W8SMi3-4010U2GSMB

W8PMi3-4010U2GSMB

NOKMi7-4510U2GSMB

W8SMi7-4510U2GSMB

W8PMi7-4510U2GSMB

NOKMi5-4210U2GSMB

W8SMi5-4210U2GSMB

W8PMi5-4210U2GSMB

NOKMi3-4030U2GSMB5B20G05103

W8SMi3-4030U2GSMB5B20G05100

W8PMi3-4030U2GSMB5B20G05099

LCDT ouchModule

AlphaIIFHDLCMforOfilm

AlphaIIFHDLCMforLGE

Memory

LenovoP/N

90005884N

90005885N

5B20F66810N

5B20F66811N

5B20F66812N

5B20F66813N

5B20F66814N

5B20F66815N

90005883N

90005884N

90005885N

5B20F66815N

5B20F66810N

5B20F66814N

5B20F66813N

5B20F66812N

5B20F66811N

888016973N

888016974N

CRU
ID

N

N

N

©CopyrightLenovo2014

37

MT16KTF1G64HZ-1G6E1

M471B5173DB0-YK04GBD3L-1600S-HF

M471B1G73DB0-YK08GBD3L-1600S-HF

MT8KTF51264HZ-1G6E14GBD3L-1600S-HF

Mic_SD9QBJ4GBD3L-1600S

Mic_RD9QBJ4GBD3L-1600S-HF

HMT451S6BFR8A-PB4GBD3L-1600S-HF

HMT41GS6BFR8A-PB8GBD3L-1600S-HF

Mic_RD9QBJ8GBD3L-1600S-HF

HardDrive

HTS545050A7E380

WD5000LPVX-08V0T16200379N

ST500LM000

WD10SPCX-24HWST06G7mm1THDD

ST500L T0126G7mm5.4K500GHDD

Boards

LTNRTL8821AE1x1ac+BT4.0ComboHMC

LiteonWB3351x1BGN+BT4.0HMC

CbtRTL8723BE1x1BGN+BTHMC

FXNBCM20792MNFCModule

MSIAlphaIIpowerbuttonboardMP

MSIAlphaIIIOboardMP

MSIAlphaIIHomeboardMP

Camera

AVC1080P2MICWVWBCamAphalII

Bison1080P2MICWVWBCamAphalII

Speaker

Alpha2Wabony2.5Wspeaker25216223N

Keyboard&Mouse

LiteonSK-8861(US)2.4GKB-Metal8

LiteonSK-8861(TW)2.4GKB-Metal8

LiteonSK-8861(TH)2.4GKB-Metal8

LiteonSK-8861(CS-SK)2.4GKB-Metal8

LiteonSK-8861(US-IN)2.4GKB-Metal8

LiteonSK-8861(RU)2.4GKB-Metal8

LiteonSK-8861(GB)2.4GKB-Metal8

LiteonSK-8861(Nordic)2.4GKB-Metal8

LiteonSK-8861(LA)2.4GKB-Metal8

LiteonSK-8861(SA)2.4GKB-Metal8

LiteonSK-8861(DE)2.4GKB-Metal8

1100635N

1100942N

1100943N

1100957N

1100959N

1100967N

1100985N

1100986N

1101012N

16200067N

16200420N

16200554N

16200626N

11202485N

20200437N

20200440N

11202583N

11202641N

11202647N

11202650N

20200611N

20200612N

252160201

252160211

252160221

252160231

252160241

252160251

252160261

252160271

252160281

252160301

252160311

38IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

LiteonSK-8861(TR)2.4GKB-Metal8

LiteonSK-8861(ES)2.4GKB-Metal8

LiteonSK-8861(IT)2.4GKB-Metal8

LiteonSK-8861(FR)2.4GKB-Metal8

LiteonSK-8861(KR)2.4GKB-Metal8

LiteonSK-8861(JP)2.4GKB-Metal8

LiteonSK-8861(EN-FR)2.4GKB-Metal8

LiteonSK-8861(BE-EN)2.4GKB-Metal8

LiteonSK-8861(US-EU)2.4GKB-Metal8

252160321

252160331

252160341

252160351

252160361

252160371

252160381

252160391

252160401

SK-8861(CH)2.4GKB-Metal8SD50F65816

LiteonZTM6002.4GMouse(WW)Silver

LiteonZTM6002.4GMouse(NoBTY)Silver

252160431

252160441

PowerCord

US/Canada/Barbados/Belize/Bolivia/CostaRica/Columbia/DominicanRepublic/Ecuador/El
Salvador/Guatemala/Haiti/Honduras/Jamaica/Mexico/NetherlandsAntilles/Nicaragua/

310338571

Panama/Philippines/Peru/Venezuela/(Thainland)

US/Canada/Barbados/Belize/Bolivia/CostaRica/Columbia/DominicanRepublic/Ecuador/El
Salvador/Guatemala/Haiti/Honduras/Jamaica/Mexico/NetherlandsAntilles/Nicaragua/

310338581

Panama/Philippines/Peru/Venezuela/(Thainland)

Albania/Algeria/Angola/Austria/Azerbaijan/Belarus/Belgium/Bosnia/Bulgaria/Croatia//Cambodia/Cote
d'ivoire/Czech/Estonia/Egypt/Finland/France/Georgia/Germany/
Greece/Herzegovina/Hungary/Indonesia/Iceland/Kazakhstan/Kyrgyzstan/Laos/Latvia/

310353321

Lebanon/Lithuani

India/(Bangladesh/SriLanka)

310353951

UK/HongKong/Singapore/Malaysia/Bahrain/Bangladesh/Botswana/Burma/Brunei
/Cyprus/Ghana/Ireland/Jordan/Kenya/Kuwait/Malta/Nigeria/Oman/Qatar/UnitedArab

310353961

Emirates/T rinidadandTobago/SaudiArabia/SriLanka

Australia/NewZealand

310353971

Brazil310358281

Taiwan310388851

LA(HighVoltage)Argentina,Paraguay,Uruguay

310391001

Denmark310391011

Switzerland/Liechtenstein

Italy/Chile/Libya

SouthAfrica/Macao/Namibia/Nepal/Pakistan/Swaziland/Uganda

310391031

310391041

310391051

Korea310391061

Israel310391071

UK/HongKong/Singapore/Malaysia/Bahrain/Bangladesh/Botswana/Burma/Brunei
/Cyprus/Ghana/Ireland/Jordan/Kenya/Kuwait/Malta/Nigeria/Oman/Qatar/UnitedArab

310494961

Emirates/T rinidadandTobago/SaudiArabia/SriLanka

Albania/Algeria/Angola/Austria/Azerbaijan/Belarus/Belgium/Bosnia/Bulgaria/Croatia//Cambodia/Cote
d'ivoire/Czech/Estonia/Egypt/Finland/France/Georgia/Germany/
Greece/Herzegovina/Hungary/Indonesia/Iceland/Kazakhstan/Kyrgyzstan/Laos/Latvia/

310494971

Lebanon/Lithuani

Korea310494981

1

Chapter8.FRUlists39

Taiwan310494991

Australia/NewZealand

SouthAfrica/Macao/Namibia/Nepal/Pakistan/Swaziland/Uganda

Israel310495021

Denmark310495031

Italy/Chile/Libya

Brazil310495051

LA(HighVoltage)Argentina,Paraguay,Uruguay

Switzerland/Liechtenstein

US/Canada/Barbados/Belize/Bolivia/CostaRica/Columbia/DominicanRepublic/Ecuador/El
Salvador/Guatemala/Haiti/Honduras/Jamaica/Mexico/NetherlandsAntilles/Nicaragua/
Panama/Philippines/Peru/Venezuela/(Thainland)

Albania/Algeria/Angola/Austria/Azerbaijan/Belarus/Belgium/Bosnia/Bulgaria/Croatia//Cambodia/Cote
d'ivoire/Czech/Estonia/Egypt/Finland/France/Georgia/Germany/
Greece/Herzegovina/Hungary/Indonesia/Iceland/Kazakhstan/Kyrgyzstan/Laos/Latvia/
Lebanon/Lithuani

Australia/NewZealand

UK/HongKong/Singapore/Malaysia/Bahrain/Bangladesh/Botswana/Burma/Brunei
/Cyprus/Ghana/Ireland/Jordan/Kenya/Kuwait/Malta/Nigeria/Oman/Qatar/UnitedArab
Emirates/T rinidadandTobago/SaudiArabia/SriLanka

India/(Bangladesh/SriLanka)

Taiwan315033541

SouthAfrica/Macao/Namibia/Nepal/Pakistan/Swaziland/Uganda

LA(HighVoltage)Argentina,Paraguay,Uruguay

Brazil315033571

Korea315033581

Italy/Chile/Libya

Denmark315033601

Switzerland/Liechtenstein

Israel315033621

Japan315034231

Japan315034241

Japan315034251

ThermalModule&Fan

AVCSE42600001AlphaIIHS

SUNONEG70040S1-C030-S9AAlphaIICPUFAN

SUNONEG70040S1-C040-S9AAlphaIISYSFAN

Accessories

Joystick200026561

Striker

AlphaE-dice2nd315046211

AlphaE-dice2nd315046211

310495001

310495011

310495041

310495071

310495081

310495171

310495181

310495201

315033521

315033531

315033551

315033561

315033591

315033611

31506671N

31506672N

31506673N

200026571

40IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

AlphaE-diceChinaUSAUKGermany

AlphaE-diceChinaUSAUKGermany

315047301

315047301

AlphaE-diceMX,PE,VEN,RU,TL315057561

AlphaE-diceMX,PE,VEN,RU,TL315057561

BetaE-diceUA,JO,KU,OMA,QAT,KSA,UAE

E-diceforAsiaandSouthAmerica

E-diceforAsiaandSouthAmerica

BetaE-diceUA,JO,KU,OMA,QAT,KSA,UAE

315066021

315066421

315066421

315066021

Battery

SanyoPolymer3S2P73Wh

31506605N

Mechanicals

ASM-ALPHA2_27INCH_BACK_COVER

ASM_AlphaII_bracket-AforHDD

ASM_AlphaII_BKT_CAMERA

31506851N

31506853N

31506854N

RearCoverVictoryAlphaII5CB0G15207

HingeStronkinAlphaII5H50G15206

Cables

LSAlphaIIDCINCable

LSAlphaIIFFCCable_158mm

LSAlphaIILVDSCABLE(30PIN)_310mm

LSAlphaIILVDSCABLE(40PIN)_260mm

LSAlphaIINFCModuleT oMBFFCCable

LSAlphaIIPowerButtonCable_710mm

LSAlphaIISATAHDDCable_120mm

LSAlphaIISideIOBoardCable_FPC

LSAlphaIITO_SCA_BoardCable(Coaxial)

LSAlphaIITO_SCA_BoardCable(Wire)

LSAlphaIIWEBCAMCABLE

LSAlphaIIFFCfortelecontrol

LSAlpha2WLANantennaL1610mm

LSAlpha2WLANantennaL2340mm

LSAlphaIIFHDCVTtopanelFFC_240mm

LSAlphaIIFHDCVTttoscalarboardFFC

LSAlphaIILVDSCABLE(30PIN_FHD)_280mm

31506675N

31506676N

31506677N

31506678N

31506679N

31506680N

31506681N

31506682N

31506683N

31506684N

31506687N

31506688N

31506689N

31506690N

31507030N

31507031N

31507032N

DELTAADP-120ZBBBHTcommon120Wadapter36200439N

LiteonPA-1121-04LB120wcommonadapter36200440N

N

N

Chapter8.FRUlists41

42IdeaCentreHorizon227All-In-OnePCHardwareMaintenanceManual

Chapter9.Generalinformation

Thischapterprovidesgeneralinformationthatappliestoallcomputermodelscoveredbythismanual.

AdditionalServiceInformation

Thischapterprovidesadditionalinformationthattheservicerepresentativemightfindhelpful.

Powermanagement

Powermanagementreducesthepowerconsumptionofcertaincomponentsofthecomputersuchasthe
systempowersupply,processor,harddiskdrives,andsomemonitors.

Advancedconfigurationandpowerinterface(ACPI)BIOS

AsthiscomputerhasanACPIBIOSsystem,theoperatingsystemisallowedtocontrolthepower
managementfeaturesofthecomputerandthesettingsforAdvancedPowerManagement(APM)BIOSmode
isignored.NotalloperatingsystemssupportACPIBIOSmode.

AutomaticPower-Onfeatures

TheAutomaticPower-OnfeatureswithinthePowerManagementmenuallowyoutoenableanddisable
featuresthatturnonthecomputerautomatically.

•WakeUponAlarm:Y oucanspecifyadateandtimeatwhichthecomputerwillbeturnedonautomatically.
Thiscanbeeitherasingleevent,adailyeventoraweeklyevent.

•WakeUponLAN:ThisfeatureallowsLANadaptercardtowaketheSystem.

©CopyrightLenovo2014

43