Lenovo K49 User Manual

Download

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HardwareMaintenanceManual

ZhaoYangK49

Page 2

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation

underAppendixA“Notices”onpage91

FourthEdition(May2013)

©CopyrightLenovo2012,2013.

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

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Contents

Aboutthismanual...........iii

Chapter1.Safetyinformation......1

Generalsafety................1

Electricalsafety...............2

Safetyinspectionguide............3

Handlingdevicesthataresensitivetoelectrostatic

discharge..................3

Groundingrequirements............4

Safetynotices(multilingualtranslations)......4

Lasercompliancestatement(multilingual

translations)................19

Chapter2.Importantservice

information..............27

StrategyforreplacingFRUs.........27

Strategyforreplacingaharddiskdrive...28 Importantnoticeforreplacingasystem

board................28

ImportantinformationaboutreplacingRoHS

compliantFRUs..............28

Chapter3.Generalcheckout.....29

Whattodorst..............29

Powersystemcheckout...........30

Checkingtheacpoweradapter......30

Checkingoperationalcharging......31

Checkingthebatterypack........31

Chapter4.Relatedservice

information..............33

Recoveringthecomputersettings.......33

Passwords................33

Power-onpassword...........34

Supervisorpassword..........34

Powermanagement............34

Screenblankmode...........34

Sleepmode..............34

Hibernationmode...........35

Chapter5.ZhaoY angK49.......37

Specications...............37

Statusindicators..............38

Fnkeycombinations............39

Chapter6.FRUreplacement

notices................41

Screwnotices...............41

Chapter7.Removingandreplacinga

FRU..................43

Generalguidelines.............43

1010Batterypack.............44

1020Bottomslotcover...........44

1030Opticaldriveorblankbezel.......45

1040Memorymodules...........46

1050Harddiskdriveassembly........47

1060PCIExpressMiniCardforwirelessLAN..49 1070mSA T Asolid-statedrive(onsomemodels).51

1080Thermalmodule............52

1090CPU................54

1100Keyboard..............55

1110Keyboardbezel............58

1120Fingerprintboard...........60

1130Functionboardandmicrophone.....61

1140Powerboard.............63

1150Backupbattery............63

1160Speakerassembly...........64

1170Systemboardassembly.........66

1180LCDunit...............67

1190DC-inbracket,DC-incable,USBbracket,

USBcable,andbasecover..........69

2010LCDfrontbezel............71

2020Integratedcamera...........73

2030LCDpanelandLCDcable........73

2040Hinges...............75

2050AntennaassemblyandLCDcover.....76

Chapter8.Locations.........79

Frontview................79

Right-sideview..............80

Bottomandleft-sideview..........81

Chapter9.Partslist..........83

Overall..................84

LCDFRUs................86

Keyboard.................88

Miscellaneousparts............88

acpoweradapters.............88

Powercords...............88

AppendixA.Notices..........91

Electronicemissionsnotices.........92

Trademarks................92

©CopyrightLenovo2012,2013

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iiHardwareMaintenanceManual

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Aboutthismanual

ThismanualprovidesserviceandreferenceinformationforthefollowingLenovo

Machine

ZhaoYangK4920164

Machinetype(MT)

products.

Usethismanualtotroubleshootproblems.

Themanualisdividedintothefollowingsections:

•Thecommonsectionsprovidegeneralinformation,guidelines,andsafetyinformationrequiredfor servicingcomputers.

•Theproduct-specicsectionincludesservice,reference,andproduct-specicpartsinformation.

Important:

•ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithLenovoproducts.Use thismanualtotroubleshootproblemseffectively.

•BeforeservicingaLenovoproduct,besuretoreadalltheinformationunderChapter1“Safety information”onpage1

andChapter2“Importantserviceinformation”onpage27.

©CopyrightLenovo2012,2013

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Chapter1.Safetyinformation

Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea LenovoNotebook.

•“Generalsafety”onpage1

•“Electricalsafety”onpage2

•“Safetyinspectionguide”onpage3

•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3

•“Groundingrequirements”onpage4

•“Safetynotices(multilingualtranslations)”onpage4

•“Lasercompliancestatement(multilingualtranslations)”onpage19

Generalsafety

Followtheserulestoensuregeneralsafety:

•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Makesurethatyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallybetweenyourfeet.

3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe musclesinyourback.Donotattempttoliftanyobjectthatweighsmorethan16kg(35lb)orthatyou thinkistooheavyforyou.

•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.

•Beforeyoustartthemachine,makesurethatotherservicetechniciansandthecustomer'spersonnelare notinahazardousposition.

•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing themachine.

•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.

•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Makesurethatyour sleevesarefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.

•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,about8 centimeters(3inches)fromtheend.

•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing,becausemetal objectsaregoodelectricalconductors.

•Wearsafetyglasseswhenyouarehammering,drilling,soldering,cuttingwire,attachingsprings,using solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.

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

•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.

•Fanlouversonthemachinehelptopreventoverheatingofinternalcomponents.Donotobstructfan louversorcoverthemwithlabelsorstickers.

©CopyrightLenovo2012,2013

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Electricalsafety

Observethefollowingruleswhenworkingonelectricalequipment.

Important:

Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterial thatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents. Manycustomershave,neartheirequipment,rubberoormatsthatcontainsmallconductivebersto decreaseelectrostaticdischarges.Donotusethistypeofmattoprotectyourselffromelectricalshock.

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

•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.

•Disconnectallpowerbefore: –Performingamechanicalinspection –Workingnearpowersupplies –Removingorinstallingmainunits

•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer topower-offthewallboxthatsuppliespowertothemachine,andtolockthewallboxintheoffposition.

•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions: –Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.

Attention:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.

–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour

pocketorbehindyourback.

Attention:Anelectricalshockcanoccuronlywhenthereisacompletecircuit.Byobservingtheabove rule,youmaypreventacurrentfrompassingthroughyourbody.

–Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor

thattester.

–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas

metaloorstripsandmachineframes. Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;Instructionsforthese precautionsareinthesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuring highvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistoors, nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.

•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thesurfaceis conductive;suchtouchingcancausepersonalinjuryandmachinedamage.

•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating placesinamachine: –Powersupplyunits –Pumps –Blowersandfans –Motorgenerators –Similarunitstolistedabove Thispracticeensurescorrectgroundingoftheunits.

•Ifanelectricalaccidentoccurs:

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–Usecaution;donotbecomeavictimyourself. –Switchoffpower. –Sendanotherpersontogetmedicalaid.

Safetyinspectionguide

Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians frominjury.Thisguideaddressesonlythoseitems.Y oushouldusegoodjudgmenttoidentifypotential safetyhazardsduetoattachmentofnon-Lenovofeaturesoroptionsnotcoveredbythisinspectionguide.

Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand whetheryoucancontinuewithoutrstcorrectingtheproblem.

Considertheseconditionsandthesafetyhazardstheypresent:

•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal electricalshock)

•Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor

•Mechanicalhazards,suchaslooseormissinghardware

Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning ofeveryservicetask.Beginthecheckswiththepoweroff,andthepowercorddisconnected.

Checklist:

1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).

2.Poweroffthecomputer.Disconnectthepowercord.

3.Checkthepowercordfor:

a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground

continuityfor0.1ohmorlessbetweentheexternalgroundpinandtheframeground.

b.Thepowercordshouldbethetypespeciedinthepartslist.

c.Insulationmustnotbefrayedorworn.

4.Checkforcrackedorbulgingbatteries.

5.Removethecover.

6.Checkforanyobviousnon-Lenovoalterations.Usegoodjudgmentastothesafetyofanynon-Lenovo alterations.

7.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetallings,contamination,wateror otherliquids,orsignsofreorsmokedamage.

8.Checkforworn,frayed,orpinchedcables.

9.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.

Handlingdevicesthataresensitivetoelectrostaticdischarge

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

Notes:

1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.

Chapter1.Safetyinformation3

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2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.

WhenhandlingESD-sensitiveparts:

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

•Avoidcontactwithotherpeople.

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeevenwhen youarewearingawriststrap.

•Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen handlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecic servicerequirement.

Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.

–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.

–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor

referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundgroundprongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.

Safetynotices(multilingualtranslations)

Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•BrazilianPortuguese

•French

•German

•Hebrew

•Japanese

•Korean

•Spanish

•T raditionalChinese

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Lasercompliancestatement(multilingualtranslations)

Thelasercompliancestatementsinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•BrazilianPortuguese

•French

•German

•Hebrew

•Japanese

•Korean

•Spanish

•T raditionalChinese

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Chapter2.Importantserviceinformation

Thischapterpresentsthefollowingimportantserviceinformationthatappliestoallmachinetypessupported bythismanual:

•“StrategyforreplacingFRUs”onpage27 –“Strategyforreplacingaharddiskdrive”onpage28 –“Importantnoticeforreplacingasystemboard”onpage28

•“ImportantinformationaboutreplacingRoHScompliantFRUs”onpage28

Important:BIOSanddevicedriverxesarecustomer-installable.TheBIOSanddevicedriversareavailable athttp://www.lenovo.com/support.

StrategyforreplacingFRUs

Beforereplacingparts:

Makesurethatallsoftwarexes,drivers,andBIOSdownloadsareinstalledbeforereplacinganyFRUs listedinthismanual.

Afterasystemboardisreplaced,ensurethatthelatestBIOSisinstalledtothesystemboardbefore completingtheserviceaction.

Todownloadsoftwarexes,drivers,andBIOS,dothefollowing:

1.Gotohttp://www.lenovo.com/support.

2.ClickDownloadDrivers&Software.TheWebsiteoffersthreeoptionstobeginyoursearch:

•Searchbyproductnumber

•Searchthroughtheproductauto-detectfunction

•Searchbyproductcategory

3.Followthedirectionsonthescreenandinstallthenecessarysoftware.

4.Restartthecomputer.

Notes:Ifyouneedtoimprovethecomputerperformance,youalsocoulddownloadandinstallthelatest BIOSutilityfromtheSupportWebsite.

•DonottrytoupdatetheBIOSsettingsforanycomputerunlessyouhavebeentrainedandcertied.An untrainedpersonrunstheriskofdamagingthecomputer.

•Beforeinstallingthelatestutility,makesurethatthebatteryisfullychargedandanacpoweradapteris connected.

•Donotturnofforputyourcomputerintosleeporhibernationuntiltheupdatehasbeencompleted. Otherwise,thesystemboardmightbedamaged.

UsethefollowingstrategytopreventunnecessaryexpenseforreplacingandservicingFRUs:

•IfyouareinstructedtoreplaceaFRUbutthereplacementdoesnotcorrecttheproblem,reinstall theoriginalFRUbeforeyoucontinue.

•Somecomputershavebothaprocessorboardandasystemboard.Ifyouareinstructedtoreplaceeither theprocessorboardorthesystemboard,andreplacingoneofthemdoesnotcorrecttheproblem, reinstallthatboard,andthenreplacetheotherone.

©CopyrightLenovo2012,2013

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•IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUsmaybethecauseoftheerror. Beforereplacingtheadapterordevice,removetheFRUs,onebyone,toseeifthesymptomschange. ReplaceonlytheFRUthatchangedthesymptoms.

Strategyforreplacingaharddiskdrive

Alwaystrytorunalow-levelformatbeforereplacingaharddiskdrive(HDD).Thiswillcauseallcustomerdata ontheharddisktobelost.Besurethatthecustomerhasacurrentbackupofthedatabeforedoingthistask.

Attention:Thedrivestartupsequenceinthecomputeryouareservicingmayhavebeenchanged.Be extremelycarefulduringwriteoperationssuchascopying,saving,orformatting.Ifyouselectanincorrect drive,dataorprogramscanbeoverwritten.

Importantnoticeforreplacingasystemboard

Somecomponentsmountedonasystemboardareverysensitive.Improperhandlingofasystemboardcan causedamagetothosecomponents,andmaycauseasystemmalfunction.

Attention:Whenhandlingasystemboard:

•Donotdropasystemboardorapplyanyexcessiveforcetoit.

•Avoidroughhandlingofanykind.

•AvoidbendingasystemboardandhardpushingtopreventcrackingateachBGA(BallGridArray)chipset.

ImportantinformationaboutreplacingRoHScompliantFRUs

RoHS,TheRestrictionofHazardousSubstancesinElectricalandElectronicEquipmentDirective (2002/95/EC)isaEuropeanUnionlegalrequirementaffectingtheglobalelectronicsindustry.RoHS requirementsmustbeimplementedonLenovoproductsplacedonthemarketafterJune2006.Products onthemarketbeforeJune2006arenotrequiredtohaveRoHScompliantparts.IftheoriginalFRUparts arenon-compliant,thereplacementpartsalsocanbenon-compliant.Thatis,iftheoriginalFRUpartsare RoHScompliant,thereplacementpartalsomustbeRoHScompliant.

Note:RoHSandnon-RoHSFRUpartnumberswiththesametandfunctionareidentiedbytheunique FRUpartnumbers.

LenovoplanstotransittoRoHScompliancebeforetheimplementationdateandexpectsitssupplierstobe readytomeetLenovo’srequirementsandscheduleintheEuropeanUnion.Productssoldbetween2005 and2006mightcontainsomeRoHScompliantFRUs.Thefollowingstatementpertainstotheproducts withRoHScompliantFRUs.

RoHScompliantFRUshaveuniqueFRUpartnumbers.BeforeoraftertheRoHSimplementationdate,the failedRoHScompliantpartsmustbereplacedwithcompliantpartsandonlythefollowingFRUscanbe used:identiedascompliantintheHardwareMaintenanceManualordirectsubstitutionscanbeused.

•CompliantFRUsidentiedinHardwareMaintenanceManual

•DirectsubstitutionswithdifferentFRUpartnumbersautomaticallyshippedbythedistributioncenterat thetimeoforder

ForproductsshippedafterJune2006

Currentororiginalpart

MustbeRoHSMustbeRoHS

28HardwareMaintenanceManual

ReplacementFRU

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Chapter3.Generalcheckout

Thischapterpresentsfollowinginformation:

•“Whattodorst”onpage29

•“Powersystemcheckout”onpage30

Beforeyougotothecheckoutguide,besuretoreadthefollowingimportantnotes.

Importantnotes:

•Onlycertiedtrainedpersonnelshouldservicethecomputer.

•BeforereplacinganyFRU,readtheentirepageonremovingandreplacingFRUs.

•WhenyoureplaceFRUs,itisrecommendedtousenewnylon-coatedscrews.

•Beextremelycarefulduringsuchwriteoperationsascopying,saving,orformatting.Drivesinthecomputer thatyouareservicingsequencemighthavebeenaltered.Ifyouselectanincorrectdrive,dataorprograms mightbeoverwritten.

•ReplaceaFRUonlywithanotherFRUofthecorrectmodel.WhenyoureplaceaFRU,makesurethatthemodel ofthemachineandtheFRUpartnumberarecorrectbyreferringtotheFRUpartslist.

•AFRUshouldnotbereplacedbecauseofasingle,unreproduciblefailure.Singlefailurescanoccurfora varietyofreasonsthathavenothingtodowithahardwaredefect,suchascosmicradiation,electrostaticdischarge, orsoftwareerrors.ConsiderreplacingaFRUonlywhenaproblemrecurs.IfyoususpectthataFRUisdefective, cleartheerrorlogandrunthetestagain.Iftheerrordoesnotrecur,donotreplacetheFRU.

•BecarefulnottoreplaceanondefectiveFRU.

Whattodorst

WhenyoudoreturnaFRU,youmustincludethefollowinginformationinthepartsexchangeformor partsreturnformthatyouattachtoit:

1.Nameandphonenumberofservicetechnician

2.Dateofservice

3.Dateonwhichthemachinefailed

4.Dateofpurchase

5.ProcedureindexandpagenumberinwhichthefailingFRUwasdetected

6.FailingFRUnameandpartnumber

7.Machinetype,modelnumber,andserialnumber

8.Customer'snameandaddress

Note:Duringthewarrantyperiod,thecustomermayberesponsibleforrepaircostsifthecomputerdamage wascausedbymisuse,accident,modication,unsuitablephysicaloroperatingenvironment,orimproper maintenancebythecustomer.Followingisalistofsomecommonitemsthatarenotcoveredunderwarranty andsomesymptomsthatmightindicatethatthesystemwassubjectedtostressbeyondnormaluse.

Beforecheckingproblemswiththecomputer,determinewhetherthedamageiscoveredunderthewarranty byreferringtothefollowinglist:

Thefollowingarenotcoveredunderwarranty:

•LCDpanelcrackedfromtheapplicationofexcessiveforceorfrombeingdropped

•Scratched(cosmetic)parts

•Distortion,deformation,ordiscolorationofthecosmeticparts

•Plasticparts,latches,pins,orconnectorsthathavebeencrackedorbrokenbyexcessiveforce

•Damagecausedbyliquidspilledintothesystem

•DamagecausedbytheimproperinsertionofaPCCardortheinstallationofanincompatiblecard

•Improperdiscinsertionoruseofanopticaldrive

©CopyrightLenovo2012,2013

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•Diskettedrivedamagecausedbypressureonthediskettedrivecover,foreignmaterialinthedrive,

ortheinsertionofadiskettewithmultiplelabels

•Damagedorbentdisketteejectbutton

•Fusesblownbyattachmentofanonsupporteddevice

•Forgottencomputerpassword(makingthecomputerunusable)

•Stickykeyscausedbyspillingaliquidontothekeyboard

•Useofanincorrectacpoweradapteronlaptopproducts

Thefollowingsymptomsmightindicatedamagecausedbynonwarrantedactivities:

•Missingpartsmightbeasymptomofunauthorizedserviceormodication.

•Ifthespindleofaharddiskdrivebecomesnoisy,itmayhavebeensubjectedtoexcessiveforce, ordropped.

Powersystemcheckout

Toverifyasymptom,dothefollowing:

1.T urnoffthecomputer.

2.Removethebatterypack.

3.Connecttheacpoweradapter.

4.Checkthatpowerissuppliedwhenyouturnonthecomputer.

5.T urnoffthecomputer.

6.Disconnecttheacpoweradapterandinstallthechargedbatterypack.

7.Checkthatthebatterypacksuppliespowerwhenyouturnonthecomputer.

Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:

•“Checkingtheacpoweradapter”onpage30

•“Checkingoperationalcharging”onpage31

•“Checkingthebatterypack”onpage31

Checkingtheacpoweradapter

Youareherebecausethecomputerfailsonlywhentheacpoweradapterisused.

•Ifthepower-onindicatordoesnotturnon,checkthepowercordoftheacpoweradapterforcorrect continuityandinstallation.

•Ifthecomputerdoesnotchargeduringoperation,goto“Checkingoperationalcharging”onpage31

Tochecktheacpoweradapter,dothefollowing:

1.Unplugtheacpoweradaptercablefromthecomputer.

2.Measuretheoutputvoltageattheplugoftheacpoweradaptercable.Seethefollowinggure:

1+20

Note:Outputvoltageacrosspin2oftheacpoweradaptermaydifferfromtheoneyouareservicing.

3.Ifthevoltageisnotcorrect,replacetheacpoweradapter.

4.Ifthevoltageisacceptable,dothefollowing:

Voltage(Vdc)

•Replacethesystemboard.

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•Iftheproblempersists,gotoChapter5“ZhaoY angK49”onpage37.

1(+)

2(+)

6(-)

7(-)

Note:Noisefromtheacpoweradapterdoesnotalwaysindicateadefect.

Checkingoperationalcharging

Tocheckwhetherthebatterychargesproperlyduringoperation,useadischargedbatterypackorabattery packthathaslessthan50%ofthetotalpowerremainingwheninstalledinthecomputer.

Performoperationalcharging.Ifthebatterystatusindicatororicondoesnotturnon,removethebattery packandletitreturntoroomtemperature.Reinstallthebatterypack.Ifthechargeindicatororiconstilldoes notturnon,replacethebatterypack.

Ifthechargeindicatorstilldoesnotturnon,replacethesystemboard.Thenreinstallthebatterypack.Ifitis stillnotcharged,gotothenextsection.

Checkingthebatterypack

ThebatterystatusiconintheWindows

TocheckfordetailedbatterystatusinformationontheWindowsoperatingsystem,dothefollowing:

•Windows7:LaunchthePowerManagerprogramandclicktheBatterytab.

•Windows8:

–PresstherecoverybuttontolaunchtheLenovoSolutionCenterprogram,andthenclickBattery.

–LaunchtheLenovoSettingsprogramfromtheStartscreen,andthenclickPower.

noticationareadisplaysthepercentageofbatterypowerremaining.

Tocheckthebatterypack,dothefollowing:

1.T urnoffthecomputeranddisconnecttheacpoweradapter.

2.Removethebatterypackandmeasurethevoltagebetweenbatteryterminals1(+)and7(-).

Terminal

1+0to+14

3.Ifthevoltageislessthan+11.0Vdc,thebatterypackhasbeendischarged.

Note:Rechargingwilltakeatleast3hours,eveniftheindicatordoesnotturnon.

Ifthevoltageisstilllessthan+11.0Vdcafterrecharging,replacethebatterypack.

4.Ifthevoltageismorethan+11.0Vdc,measuretheresistancebetweenbatteryterminals5and7. Theresistancemustbe4to30KΩ.

Iftheresistanceisnotcorrect,replacethebatterypack.Iftheresistanceiscorrect,replacethesystem board.

Voltage(Vdc)

Ground(-)

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Chapter4.Relatedserviceinformation

Thischapterpresentsthefollowinginformation:

•“Recoveringthecomputersettings”onpage33

•“Passwords”onpage33

•“Powermanagement”onpage34

Recoveringthecomputersettings

Thistopicprovidesinformationabouttherecoveryprogramsthatareavailableforyoutorecoverthe computersettings.

•Windows7:ThefollowingrecoveryprogramsareavailableoncomputerswithaWindows7operating system:

–OneKey

TheOneKeyRecoveryProprogramenablesyoutobackupallyourharddiskdrivecontents,including theoperatingsystem,datales,softwareprograms,andpersonalsettings.Y oucandesignatewhere theOneKeyRecoveryProprogramstoresthebackup.Afteryouhavebackedupthecontentsonthe harddiskdrive,youcanrestorethecompletecontentsoftheharddiskdrive,restoreonlythedesired les,orrestoreonlytheWindowsoperatingsystemandapplications.

–ProductRecovery

TheProductRecoveryprogramenablesyoutorestorethecomputersettingstothefactorydefault settingsthroughrecoverymedia.

RecoveryPro

Attention:WhenyouusetheProductRecoveryprogramtorestorethecomputersettings,allthedata youhavestoredontheharddiskdrivewillbedeletedandthecomputersettingswillberestoredtothe factorydefaultsettings.Duringtherestoringprocess,youwillbegiventheoptiontosaveoneormore lescurrentlyontheharddiskdrivetoothermediabeforethedataisdeleted.

•Windows8:ThepreinstalledWindowsrecoveryprogramenablesyoutodothefollowing:

–Refreshingthecomputerwithoutlosingpersonalles

–Restoringthecomputertothefactorydefaultsettings

Attention:WhenyouusetheWindowsrecoveryprogramtorestorethecomputersettings,allthedata youhavestoredontheharddiskdrivewillbedeletedandthecomputerwillberestoredtothefactory defaultsettings.T oavoiddataloss,backupyourdatainadvance.

–Conguringtheadvancedstartupoptions

Theadvancedstartupoptionsenableyoutodothefollowing:

–ChangingthestartupsettingsoftheWindowsoperatingsystem

–RestoringtheWindowsoperatingsystemfromasystemimage

–Startingupfromanexternaldevice

Formoreinformationabouttherecoverysolutions,refertothehelpinformationsystemoftheprograms.

Passwords

AsmanyastwopasswordsmightbeneededforaLenovonotebookcomputer:thepower-onpassword andthesupervisorpassword.

©CopyrightLenovo2012,2013

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Ifanyofthesepasswordshasbeenset,apromptforitwillbedisplayedonthescreenwheneverthe computeristurnedon.Thecomputerdoesnotstartuntilthepasswordisentered.

Note:Ifonlyasupervisorpasswordisset,thepasswordpromptwillnotbedisplayedwhentheoperating systemisstarted.

Power-onpassword

Apower-onpassword(POP)protectsthesystemfrombeingpoweredonbyanunauthorizedperson.The passwordmustbeenteredbeforeanoperatingsystemcanbebooted.

Supervisorpassword

Asupervisorpassword(SVP)protectsthesysteminformationstoredintheBIOS.Theusermustenterthe SVPinordertogetaccesstotheBIOSandchangethesystemconguration.

Attention:IftheSVPhasbeenforgottenandcannotbemadeavailabletotheservicetechnician,thereisno serviceproceduretoresetthepassword.Thesystemboardmustbereplacedforascheduledfee.

Powermanagement

Note:PowermanagementmodesarenotsupportedforAPMoperatingsystem.

Toreducepowerconsumption,thecomputerhasthreepowermanagementmodes:screenblank,sleep, andhibernation.

Screenblankmode

Inthefollowingcircumstances,thecomputergoesintoscreenblankmode:

•Thetimesetonthe“Turnoffmonitor”timerontheWindows7operatingsystemexpires.

Toendscreenblankmodeandresumenormaloperation,pressanykey.

•Y ouhavepressedFn+F2.

Toendscreenblankmodeandresumenormaloperation,pressFn+F2.

Sleepmode

Whenthecomputerenterssleepmode,thefollowingeventsoccurinadditiontowhatoccursinscreen blankmode:

•TheLCDispoweredoff.

•Theharddiskdriveispoweredoff.

•TheCPUstops.

Toentersleepmode,pressFn+F1.

Incertaincircumstances,thecomputergoesintosleepmodeautomatically:

•Ifa“suspendtime”hasbeensetonthetimer,andtheuserdoesnotdoanyoperationwiththekeyboard, theharddiskdrive,theparallelconnector,orthediskettedrivewithinthattime.

•Ifthebatteryindicatorblinksorange,indicatingthatthebatterypowerislow.

Tocausethecomputertoreturnfromsleepmodeandresumetheoperation,dooneofthefollowing:

•PresstheFnkey.

•OpentheLCDcover.

•T urnonthepowerbutton.

34HardwareMaintenanceManual

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Also,whenthetimesetontheresumetimerelapses,thecomputerautomaticallyreturnsfromsleepmode andresumesoperation.

Note:Thecomputerdoesnotacceptanyinputimmediatelyafteritenterssleepmode.Waitafewseconds beforetakinganyactiontoreenteroperationmode.

Hibernationmode

Inhibernationmode,thefollowingoccurs:

•Thesystemstatus,RAM,VRAM,andsetupdataarestoredontheharddiskdrive.

•Thesystemispoweredoff.

Ifyouhavedenedoneofthefollowingactionsastheeventthatcausesthesystemtogointohibernation mode,performthataction.

•Closingthelid.

•Pressingthepowerbutton.

Also,thecomputergoesintohibernationmodeautomaticallyineitherofthefollowingconditions:

•Ifa“hibernationtime”hasbeensetonthetimer,andiftheuserdoesnotdoanyoperationwiththe keyboard,theharddiskdrive,theparallelconnector,orthediskettedrivewithinthattime.

•Ifthetimerconditionsaresatisedinsuspendmode.

Whenthepoweristurnedon,thecomputerreturnsfromhibernationmodeandresumesoperation.The hibernationleinthebootrecordontheharddiskdriveisread,andsystemstatusisrestoredfromthe harddiskdrive.

Chapter4.Relatedserviceinformation35

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36HardwareMaintenanceManual

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Chapter5.ZhaoY angK49

Thischapterpresentsthefollowingproduct-specicservicereferencesandpartsinformation:

•“Specications”onpage37

•“Statusindicators”onpage38

•“Fnkeycombinations”onpage39

Specications

ThistopicliststhephysicalfeaturesfortheZhaoYangK49models.

Processor

•T oviewtheprocessorinformationofyourcomputer,doeitherofthefollowing:

–Windows7:ClickStart,right-clickComputer.ThenclickProperties.

–Windows8:Fromthedesktop,movethecursortothetop-rightorbottom-rightcornerofthescreento

displaythecharms.ThenclickSettings➙PCinfo.

Memory

•Doubledatarate3(DDR3)synchronousdynamicrandomaccessmemory(SDRAM)

Storagedevice

•2.5-inch(7mmheightor9.5mmheight)harddiskdrive

•mSA T Asolid-statedrive

Note:IfthecomputerisequippedwithbothaharddiskdriveandanmSATAsolid-statedrive,donot usethemSATAsolid-statedriveasabootabledevice.ThemSATAsolid-statedriveisusedfor“cache” functiononly.

Display

•Size:14.0inches(356mm)

•Resolution:

–LCD:1366-by-768

–Externalmonitor:Maximum2048-by-1536

•Integratedcamera(onsomemodels)

Keyboard

•6-rowLenovokeyboard

•Fnkeyfunction

•Recoverybutton

•Speakermutebutton

•ActiveProtectionSystem™(APS)button

Interface

•Comboaudiojack(stereoheadphoneorheadset)

©CopyrightLenovo2012,2013

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•T woUSB2.0connectors

1 2

3 4

•T woUSB3.0connectors

•RJ45Ethernetconnector

•HDMIport

•Externalmonitorconnector

•4-in-1digitalmediacardreaderslot

Opticaldrive

•12.7mmRamboopticaldrive(onsomemodels)

Wirelessfeatures

•IntegratedwirelessLAN

•10/100/1000MbpsEthernetcommunication

Securityfeature

•Fingerprintreader(onsomemodels)

Statusindicators

Thischapterpresentsthesystemstatusindicatorsthatshowthestatusofthecomputer.

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Table1.Statusindicators

IndicatorMeaning

Batterystatus indicator

Deviceaccess statusindicator

Wirelessstatus indicator

•Green:Thebatterychargelevelisbetween80%and100%,orthebatterydischarge levelisbetween20%and100%.

•Slowblinkinggreen:Thebatterychargelevelisbetween20%and80%,and chargingiscontinuing.Whenthebatterychargelevelreaches80%,thebatterystatus indicatorstopsblinking,butthechargingmightcontinueuntilthebatteryis100% charged.

•Slowblinkingorange:Thebatterychargelevelisbetween5%and20%,andthe chargingiscontinuing.Whenthebatterychargelevelreaches20%,theblinking colorchangestogreen.

•Orange:Thebatterydischargelevelisbetween5%and20%.

•Fastblinkingorange:Thebatterychargeordischargelevelis5%orless.

•Off:Thebatteryisdetachedorthecomputerispoweredoff.

Whenthisindicatorison,theharddiskdriveortheopticaldriveisreadingorwritingdata.

Attention:

•Whentheindicatorison,donotputthecomputerintosleepmodeorturnoffthe computer.

•Whentheindicatorison,donotmovethecomputer.Suddenphysicalshockmight causedriveerrors.

•Blue:Thewirelessnetworkfeatureison.

•Off:Wirelessnetworkdevicesaredisabledorthewirelessradioisturnedoff.

APSstatusindicator•On:TheActiveProtectionSystemprogramisactive.

•Off:TheActiveProtectionSystemprogramisinactive.

Fnkeycombinations

ThefollowingtableshowsthefunctionofeachcombinationofFnwithafunctionkey.

Table2.Functionkeycombinations

KeycombinationDescription

Fn+Esc

Fn+F1Enterssleepmode.

Fn+F2

Fn+F3

Fn+F4Enablesordisablesthecamera.

Fn+F5

Fn+F8Enablesordisablesthetouchpad

Fn+F9

Fn+F10

Fn+F11

Turnsonorturnsoffthekeyboardlight.

Enablesordisablesthebacklightfeatureofthecomputerscreen.

Switchesbetweenthecomputerdisplayandanexternalmonitor.

Enablesordisablesthebuilt-inwirelessfeatures.

StartsorpausesplaybackofWindowsMediaPlayer .

StopsplaybackofWindowsMediaPlayer.

Skipstotheprevioustrack.

Fn+F12

Skipstothenexttrack.

Chapter5.ZhaoYangK4939

Page 46

Table2.Functionkeycombinations(continued)

KeycombinationDescription

Fn+InsertEnablesordisablesthenumerickeypad.

Fn+Delete

Fn+PrtSc

Fn+Pause

Fn+up/downarrow

Fn+left/rightarrow

Enablesordisablesthescrolllockfunction.

Activatesthesystemrequest.

Activatesthebreakfunction.

Increasesordecreasesthedisplaybrightnesslevel.

Decreasesorincreasesthesoundvolume.

40HardwareMaintenanceManual

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Chapter6.FRUreplacementnotices

Thischapterpresentsnoticesrelatedtoremovingandreplacingparts.Readthischaptercarefullybefore replacinganyFRU.

CRUstatementforcustomers:

Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,called a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothers aredesignatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.For

optional-serviceCRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProvider installtheCRUaccordingtothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,

LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshippedwithyour productandareavailablefromLenovoatanytimeuponrequest.YoucanndalistofCRUsforyour productinthisHardwareMaintenanceManual.Anelectronicversionofthismanualcanbefoundat http://www.lenovo.com/UserManuals.Followtheon-screeninstructionstondthemanualforyourproduct. YoumightberequiredtoreturnthedefectiveCRU.Whenreturnisrequired:(1)returninstructions,aprepaid shippinglabel,andacontainerwillbeincludedwiththereplacementCRU;and(2)youmightbechargedfor thereplacementCRUifLenovodoesnotreceivethedefectiveCRUwithinthirty(30)daysofyourreceiptof thereplacementCRU.SeeyourLenovoLimitedWarrantydocumentationforfulldetails.

Screwnotices

Loosescrewscancauseareliabilityproblem.IntheLenovonotebookcomputer,thisproblemisaddressed withspecialnylon-coatedscrewsthathavethefollowingcharacteristics:

•Theymaintaintightconnections.

•Theydonoteasilycomeloose,evenwithshockorvibration.

•Theyarehardertotighten.

Dothefollowingwhenyouservicethismachine:

•Keepthescrewkitinyourtoolbag.

•Itisrecommendedtousenewscrews.

•Itrecommendedtouseeachscrewonlyonce.

•Useatorquescrewdriverifyouhaveone.

Tightenscrewsasfollows:

•Plastictoplastic

Turnanadditional90degreesafterthescrewheadtouchesthesurfaceoftheplasticpart:

•Logiccardtoplastic

Turnanadditional180degreesafterthescrewheadtouchesthesurfaceofthelogiccard:

©CopyrightLenovo2012,2013

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•T orquedriver

Ifyouhaveatorquescrewdriver,refertotheTorquecolumninthescrewinformationtableforeachstep.

•Makesurethatyouusethecorrectscrew.Itisrecommendedtousenewscrewsforreplacements.If youhaveatorquescrewdriver,tightenallscrewsrmlytothetorquespeciedinthescrewinformation tableforeachstep.

•Ensuretorquescrewdriversarecalibratedcorrectlyfollowingcountryspecications.

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Chapter7.RemovingandreplacingaFRU

ThischapterprovidesinstructionsonhowtoremoveorreplaceaFRU.

CRUstatementforcustomers:

optional-serviceCRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProvider installtheCRUaccordingtothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,

Generalguidelines

ThischapterpresentsdirectionsanddrawingsforuseinremovingandreplacingaFRU.Besuretoobserve thefollowinggeneralrules:

1.Donottrytoserviceanycomputerunlessyouhavebeentrainedandcertied.Anuntrainedpersonruns theriskofdamagingparts.

2.BeforereplacinganyFRU,reviewChapter6“FRUreplacementnotices”onpage41.

3.BeginbyremovinganyFRUsthathavetoberemovedbeforereplacingthefailingFRU.SuchFRUsare listedineachFRUreplacementsection.Removethemintheorderinwhichtheyarelisted.

4.FollowthecorrectsequenceinthestepsforremovingaFRU,asgiveninthedrawingsbythenumbers insquarecallouts.

5.Whenturningascrew,turnitinthedirectionasgivenbythearrowinthedrawing.

6.WhenremovingaFRU,moveitinthedirectionasgivenbythearrowinthedrawing.

7.T oputthenewFRUinplace,reversetheremovalprocedureandfollowanynotesthatpertainto replacement.

8.WhenreplacingaFRU,usethecorrectscrew(s)asshownintheprocedures.

DANGER

BeforeremovinganyFRU,turnoffthecomputer,unplugallpowercordsfromelectricaloutlets, removethebatterypack,andthendisconnectanyinterconnectingcables.

Attention:AfterreplacingaFRU,donotturnonthecomputeruntilyouhavemadesurethatallscrews,

springs,andothersmallpartsareinplaceandnonearelooseinsidethecomputer.Verifythisbyshaking thecomputergentlyandlisteningforrattlingsounds.Metallicpartsormetalakescancauseelectrical shortcircuits.

Attention:Thesystemboardissensitiveto,andcanbedamagedby,electrostaticdischarge.Before touchingit,establishpersonalgroundingbytouchingagroundpointwithonehandorbyusingan electrostaticdischarge(ESD)strap(P/N6405959).

©CopyrightLenovo2012,2013

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1010Batterypack

Removalstepsofbatterypack

DANGER

Useonlytheauthorizedbatteryspeciedforyourcomputer.Anyotherbatterycouldigniteor explode.

Unlockthebatterylatch1.Holdingtheotherbatterylatch(manual)intheunlockedposition2,remove thebatterypack.

Wheninstalling:Installthebatterypackintheslot.Makesurethatthebatterylatchesareinthelocked position.

1020Bottomslotcover

Foraccess,removethisFRU:

•“1010Batterypack”onpage44

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Removalstepsofbottomslotcover

Loosenthescrews1anddonotremovethem.Thenremovethecover2.

1030Opticaldriveorblankbezel

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

Removalstepsofopticaldriveorblankbezel

Removethescrew1.Theninsertascrewdriverintothescrewhole2andpushtheopticaldriveinthe directionshownbythearrow3.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(1)

Torque

Black

1.85kgf-cm

Chapter7.RemovingandreplacingaFRU45

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Removalstepsofopticaldrivebezelandopticaldrivebracket

Removethescrews1andthenremovetheopticaldrivebracket.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(2)

1040Memorymodules

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

Torque

Black

1.85kgf-cm

46HardwareMaintenanceManual

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Removalstepsofmemorymodules

1 1

Releasethetwolatchesonbothedgesofthesocketatthesametimeinthedirectionshownbythearrows

1,andthenunplugthememorymoduleinthedirectionshownbythearrow2.

Wheninstalling:Insertthenotchedendofthememorymoduleintotheslot.Pressthememorymodule rmly,andpivotituntilitsnapsintoplace.Makesurethatitisrmlyinstalledintheslotanddoesnot moveeasily.

Note:Ifonlyonememorymoduleistobeinstalledonthecomputeryouareservicing,thememorymodule mustbeinstalledinSLOT -0(

alowerslot),butnotinSLOT -1(bupperslot).

1050Harddiskdriveassembly

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

Attention:

•Donotdropthedriveorapplyanyphysicalshocktoit.Thedriveissensitivetophysicalshock.Improper handlingcancausedamageandpermanentlossofdata.

•Beforeremovingthedrive,havetheusermakeabackupcopyofalltheinformationonitifpossible.

•Neverremovethedrivewhilethecomputerisoperatingorisinsuspendmode.

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Removalstepsofharddiskdriveassembly

Removethescrews1.Thenpullthetabinthedirectionshownbythearrow2.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(1)

Black

Torque

1.85kgf-cm

Removetheharddiskdrivefromtheslot3.

Wheninstalling:Makesurethattheharddiskdriveconnectorisattachedrmly.

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Removalstepsofharddiskdrivebracket

Removethescrews1.

StepScrew(quantity)Color

M3×2.8mm,at-head,nylon-coated(4)

Removetheharddiskdrivebracketinthedirectionshownbythearrow2.

1060PCIExpressMiniCardforwirelessLAN

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

Torque

Black

4.0kgf-cm

Chapter7.RemovingandreplacingaFRU49

Page 56

RemovalstepsofPCIExpressMiniCardforwirelessLAN

Insteps1,unplugtheconnectorsusingtheremovaltoolantennaRFconnector(P/N:08K7159)orpickthe connectorswithyourngersandgentlyunplugtheminthedirectionofthearrows.Thenremovethescrew2.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(1)

Black

Torque

1.85kgf-cm

Removethecardinthedirectionshownbythearrow3.

Wheninstalling:Plugtheblackcable(MAIN)intothejacklabeledM,andthewhitecable(AUX)intothejack labeledAonthecard.

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1070mSA TAsolid-statedrive(onsomemodels)

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

Attention:

•Donotdropthedriveorapplyanyphysicalshocktoit.Thedriveissensitivetophysicalshock.Improper handlingcancausedamageandpermanentlossofdata.

•Beforeremovingthedrive,havetheusermakeabackupcopyofalltheinformationonitifpossible.

•Neverremovethedrivewhilethecomputerisoperatingorisinsuspendmode.

RemovalstepsofmSATAsolid-statedrive

Removethescrew1.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(1)

Torque

Black

Chapter7.RemovingandreplacingaFRU51

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RemovethemSATAsolid-statedriveinthedirectionshownbythearrow2.

1080Thermalmodule

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

Removalstepsofthermalmodule

Detachthefanconnector1.

Wheninstalling:Makesurethattheconnectorisattachedrmly.

52HardwareMaintenanceManual

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Loosenthescrews2to8,anddonotremovethem.

Chapter7.RemovingandreplacingaFRU53

Page 60

Liftthefanassemblyinthedirectionshownbythearrow9.

Note:Becarefulnottodamagetheconnector.

Wheninstalling:Beforeyouattachthethermalmoduletothecomputer,applythermalgrease,atanamount

of0.2grams,onthepartmarkedaandbasshowninthefollowingillustration.Eithertoomuchortooless applicationofgreasecancauseathermalproblemduetoimperfectcontactwithacomponent.

1090CPU

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1080Thermalmodule”onpage52

Attention:TheCPUisextremelysensitive.WhenyouservicetheCPU,avoidanykindofroughhandling.

54HardwareMaintenanceManual

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RemovalstepsofCPU

Rotatetheheadofthescrewinthedirectionshownbythearrow1toreleasethelock;thenremovethe CPU2.

Wheninstalling:PlacetheCPUabovetheCPUsocketa,andthenrotatetheheadofthescrewinthe directionshownbythearrowbtosecuretheCPU.

1100Keyboard

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

Chapter7.RemovingandreplacingaFRU55

Page 62

Removalstepsofkeyboard

Removethescrews1.

Wheninstalling:Makesurethatthescrewsarefastenedandthekeyboardissecured.

StepScrew(quantity)Color

M2×6mm,at-head,nylon-coated(2)

Black

Pushhardinthedirectionshownbythearrows2tounlatchthefrontsideofthekeyboard.

Torque

1.85kgf-cm

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Detachthekeyboardlightly3.Thenremovethekeyboardinthedirectionshownbythearrows4.

Chapter7.RemovingandreplacingaFRU57

Page 64

Carefullyliftthekeyboarduntilyoucanseehowit’sconnected.Holdthekeyboardabovethecomputer,and

thendetachthekeyboardconnector7.

Wheninstalling:Makesurethatthekeyboardconnectorisattachedrmly.

1110Keyboardbezel

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1030Opticaldriveorblankbezel”onpage45

•“1100Keyboard”onpage55

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Removalstepsofkeyboardbezel

Removethescrews1,2,and3thatsecurethekeyboardbezel.

StepScrew(quantity)Color

M2×6mm,at-head,nylon-coated(10)

M2×3mm,at-head,nylon-coated(3)

Black

Torque

1.85kgf-cm

Removethescrews4.

StepScrew(quantity)Color

M2×6mm,at-head,nylon-coated(2)

Torque

Black

Chapter7.RemovingandreplacingaFRU59

1.85kgf-cm

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Detachtheconnectorsinthefollowingillustration.

Wheninstalling:Makesurethatalltheconnectorsareattachedrmly.

Insteps

14,releasethekeyboardbezelfromtheframeusingaplasticprytoolasshowninthefollowing

illustration.

1120Fingerprintboard

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

60HardwareMaintenanceManual

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•“1030Opticaldriveorblankbezel”onpage45

•“1100Keyboard”onpage55

•“1110Keyboardbezel”onpage58

Removalstepsofngerprintboard

Removethescrew1.Thenremovethengerprintboardbracket2andngerprintboard3.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(1)

Black

Torque

1.85kgf-cm

1130Functionboardandmicrophone

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1030Opticaldriveorblankbezel”onpage45

•“1100Keyboard”onpage55

•“1110Keyboardbezel”onpage58

Chapter7.RemovingandreplacingaFRU61

Page 68

Removalstepsoffunctionboard

Removethescrew1.Thenremovethefunctionboardinthedirectionshownbythearrow2.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(1)

Removalstepsofmicrophone

Peeloffthemylartapes1.

Torque

Black

1.85kgf-cm

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Removethemicrophoneinthedirectionshownbythearrow2.

1140Powerboard

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1030Opticaldriveorblankbezel”onpage45

•“1100Keyboard”onpage55

•“1110Keyboardbezel”onpage58

Removalstepsofpowerboard

Removethescrew1.Thenremovethepowerboardinthedirectionshownbythearrows2..

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(1)

Black

Torque

1.85kgf-cm

1150Backupbattery

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1030Opticaldriveorblankbezel”onpage45

•“1100Keyboard”onpage55

•“1110Keyboardbezel”onpage58

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Removalstepsofbackupbattery

DANGER

Useonlytheauthorizedbatteryspeciedforyourcomputer.Anyotherbatterycouldigniteor explode.

Insertascrewdriverintothescrewholeandpushthebackupbatteryasshowninthefollowingillustration.

1160Speakerassembly

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1030Opticaldriveorblankbezel”onpage45

•“1100Keyboard”onpage55

•“1110Keyboardbezel”onpage58

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Removalstepsofspeakerassembly

DetachLCDcable2.Thendisconnectthespeakerassemblyconnectors3and4.

Removethescrews5.Thenremovethespeakerassemblyinthedirectionshownbythearrows6.

StepScrew(quantity)Color

M2.5×5.7mm,at-head,nylon-coated(4)

Torque

Black

Chapter7.RemovingandreplacingaFRU65

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1170Systemboardassembly

Importantnoticesforhandlingthesystemboard:

Whenhandlingthesystemboard,bearthefollowinginmind:

•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,orcomposite.

•Avoidroughhandlingofanykind.

•Ateverypointintheprocess,besurenottodroporstackthesystemboard.

•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatoracorrugated conductivesurface.

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1030Opticaldriveorblankbezel”onpage45

•“1040Memorymodules”onpage46

•“1050Harddiskdriveassembly”onpage47

•“1060PCIExpressMiniCardforwirelessLAN”onpage49

•“1070mSATAsolid-statedrive(onsomemodels)”onpage51

•“1100Keyboard”onpage55

•“1110Keyboardbezel”onpage58

•“1150Backupbattery”onpage63

•“1160Speakerassembly”onpage64

Removalstepsofsystemboardassembly

Removethescrews1.ThendetachLCDcable3andspeakerassemblyconnectors4and5.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(3)

Black

Torque

1.85kgf-cm

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Removethesystemboardinthedirectionshownbythearrow6.ThendetachtheandDC-incableandUSB

cableconnectors7and8.

1180LCDunit

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1030Opticaldriveorblankbezel”onpage45

•“1060PCIExpressMiniCardforwirelessLAN”onpage49

•“1100Keyboard”onpage55

•“1110Keyboardbezel”onpage58

•“1170Systemboardassembly”onpage66

Chapter7.RemovingandreplacingaFRU67

Page 74

RemovalstepsofLCDunit

Releasetheantennacablesfromthecableguides.Thenremovethescrews1.

StepScrew(quantity)Color

M2.5×6mm,at-head,nylon-coated(4)

Black

Torque

1.6kgf-cm

Wheninstalling:

•Routetheantennacablesalongthecableguides.Asyouroutethecables,makesurethattheyarenot subjecttoanytension.Tensioncouldcausethecablestobedamagedbythecableguides,orawireto bebroken.

•MakesurethattheLCDconnectorisattachedrmlyandmakesurethatyoudonotpinchtheantenna cableswhenyouattachtheLCDassembly.RoutetheLCDcablealongthecableguides.

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RemovetheLCDunitinthedirectionshownbythearrows2.

1190DC-inbracket,DC-incable,USBbracket,USBcable,andbase cover

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

•“1030Opticaldriveorblankbezel”onpage45

•“1040Memorymodules”onpage46

•“1050Harddiskdriveassembly”onpage47

•“1060PCIExpressMiniCardforwirelessLAN”onpage49

•“1070mSATAsolid-statedrive(onsomemodels)”onpage51

•“1100Keyboard”onpage55

•“1110Keyboardbezel”onpage58

•“1160Speakerassembly”onpage64

•“1170Systemboardassembly”onpage66

•“1180LCDunit”onpage67

Chapter7.RemovingandreplacingaFRU69

Page 76

RemovalstepsofDC-inbracketandDC-incable

RemovetheDC-inbracketscrew1.ThenremovetheDC-inbracket2andDC-incable3.

RemovalstepsofbracketandUSBcable

RemovetheUSBbracketscrews1.ThenremovetheUSBbracket2andUSBcable3.

StepScrew(quantity)Color

M2×3mm,at-head,nylon-coated(2)

Black

Torque

1.85kgf-cm

Wheninstalling:MakesurethatthescrewsarefastenedtothebasecoverandtheUSBbracketissecured.

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Applyinglabelstothebasecover

1 2

Thenewbasecoverisshippedwithakitcontaininglabelsofseveralkinds.Applythoselabelslistedwhen youreplacethebasecover.Forthelabelswhicharenotshippedwiththenewbasecover,peelthemoff fromtheoldbasecover,andadherethemtothenewone.

Note:IfyoureplaceapartwiththeWindowsCerticateofAuthentication(COA)label1,returntheoldpart withthelabelattachedtothecustomer.Otherwise,youcanprovidethecustomerwithaletter,statingthe originallocationofthelabelonthecomputerandtheinformationonthelabel,suchasthepartnumber, serialnumber,andproductkey.

Thefollowingillustrationshowsthelabellocationsonthebasecover.

2Chinalabel

3ECClabel

4RatinglabelI

5RatinglabelII

2010LCDfrontbezel

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1180LCDunit”onpage67

Chapter7.RemovingandreplacingaFRU71

Page 78

RemovalstepsofLCDfrontbezel

Removethescrews1.

StepScrew(quantity)Color

M2×4mm,at-head,nylon-coated(2)Silver

RemovetheLCDfrontbezelinthedirectionshownbythearrows2.

Torque

1.85kgf-cm

Wheninstalling:Makesurethatallthelatchesareattachedrmly.Thensecurethebezelwiththescrews.

72HardwareMaintenanceManual

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2020Integratedcamera

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1180LCDunit”onpage67

•“2010LCDfrontbezel”onpage71

Removalstepsofintegratedcamera

RemovetheintegratedcamerafromtheLCDcoverasshowninthefollowingillustration.

Note:TheintegratedcameraisstuckonthetopcenteroftheLCDcover.

Wheninstalling:SticktheintegratedcameratothetopcenteroftheLCDcoverandadjusttheplacementto

makesurethattheconnectorisattachedrmly.

2030LCDpanelandLCDcable

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1180LCDunit”onpage67

•“2010LCDfrontbezel”onpage71

Chapter7.RemovingandreplacingaFRU73

Page 80

RemovalstepsofLCDpanelandLCDcable

Removethescrews1.ThenremovetheLCDpanelinthedirectionshownbythearrow2.

StepScrew(quantity)Color

M2×3.5mm,at-head,nylon-coated(4)Silver

RemovetheLCDcableasshowninthefollowingillustration.

Torque

1.85kgf-cm

Wheninstalling:Makesurethattheconnectorisattachedrmly.

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Removalstepsofhinges

Removethescrews1andreleasetheantennacablesfromcableguides2.Thenremovethehingesin thedirectionshownbythearrows3.

StepScrew(quantity)Color

2040Hinges

Foraccess,removetheseFRUsinorder:

M2×3mm,at-head,nylon-coated(6)

•“1010Batterypack”onpage44

•“1180LCDunit”onpage67

•“2010LCDfrontbezel”onpage71

Torque

Black

Chapter7.RemovingandreplacingaFRU75

1.85kgf-cm

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Removalstepsofhinges

Removethescrews1andreleasetheantennacablesfromcableguides2.Thenremovethehingesin thedirectionshownbythearrows3.

StepScrew(quantity)Color

2050AntennaassemblyandLCDcover

Foraccess,removetheseFRUsinorder:

M2×3mm,at-head,nylon-coated(6)

•“1010Batterypack”onpage44

•“1180LCDunit”onpage67

•“2010LCDfrontbezel”onpage71

•“2020Integratedcamera”onpage73

•“2030LCDpanelandLCDcable”onpage73

76HardwareMaintenanceManual

Torque

Black

1.85kgf-cm

Page 83

RemovalstepsofantennaassemblyandLCDcover

ReleasetheantennacablesfromthecableguidesontheLCDcoverassemblyandfromthehingesin thedirectionshownbythearrows1.

Cablerouting:Routetheantennacablesalongthecableguidesandsecuretheantennaboardswith adhesivetapes.Asyouroutethecables,makesurethattheyarenotsubjecttoanytension.T ensioncould causethecablestobedamagedbythecableguides,orawiretobebroken.

Chapter7.RemovingandreplacingaFRU77

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Chapter8.Locations

ThischapterintroducesthelocationofthehardwarecomponentsonZhaoY angK49models.

Frontview

1Integratedcamera(onsomemodels)

2Wirelessmoduleantennas

3Mutebutton10Integratedmicrophone

4APSbutton11Speakers(left)

5Speakers(right)

6Fingerprintreader(onsomemodels)

7Mediacardreaderslot

Figure

8Touchpad

9Systemindicators

12Powerbutton

13Recoverybutton

Forthedescriptionoftheindicators,see“Statusindicators”onpage38.

1.ZhaoYangK49frontview

Page 86

Right-sideview

1USBconnector3USB/eSATAcomboconnector

2Opticaldriveorblankbezel4Comboaudiojack

Figure2.ZhaoYangK49right-sideview

80HardwareMaintenanceManual

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Bottomandleft-sideview

1Batterylatch(manual)

2Batterypack7RJ45Ethernetconnector

3Batterylatch(spring-loaded)

4Securitykeyhole9USB3.0connectors

5Fanlouvers10Bottomslotcover

Thememorymodules,harddiskdrive,andwirelesscardsarelocatedunderneaththebottomslotcover.

6Monitorconnector

8HDMIport

Figure3.ZhaoYangK49bottomandleft-sideview

Chapter8.Locations81

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Chapter9.Partslist

Thischaptercontainsfollowinglistsoftheserviceparts.

•“Overall”onpage84

•“LCDFRUs”onpage86

•“Keyboard”onpage88

•“Miscellaneousparts”onpage88

•“acpoweradapters”onpage88

•“Powercords”onpage88

Notes:

•EachFRUisavailableforalltypesormodels,unlessotherwisespecied.

•ACRU(customerreplaceableunit)isidentiedbyasingleasterisk(*)ortwoasterisks(**)intheCRUIDcolumn.An NintheCRUIDcolumnmeansthatthepartisnotaCRU.Asingleasterisk(*)meansthatthepartisaSelf-service CRU;twoasterisks(**)meansthatthepartisanOptional-serviceCRU.

ExternalCRUstatementtocustomers:

Someproblemswithyourproductcanberesolvedwithareplacementpartyoucaninstallyourself,called a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasSelf-serviceCRUsandothersare designatedasOptional-serviceCRUs.InstallationofSelf-serviceCRUsisyourresponsibility;youmayrequest thatLenovoinstallsanOptional-serviceCRUaccordingtothewarrantyserviceforyourproduct.Whereyouare installingtheCRU,LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshipped withyourproductandareavailablefromLenovoatanytimeuponrequest.Y oumayndalistofCRUsinthe publicationsthatshipwithyourproductorathttp://www.lenovo.com/CRUs.Y oumayberequiredtoreturnthe defectivepartthatisreplacedbytheCRU.Whenreturnisrequired:(1)returninstructions,aprepaidshippinglabel, andacontainerwillbeincludedwiththereplacementCRU;and(2)youmaybechargedforthereplacementCRUif Lenovodoesnotreceivethedefectivepartwithinthirty(30)daysofyourreceiptofthereplacementCRU.Seeyour LenovoLimitedWarrantydocumentationforfulldetails.

LenovocomputerscontainthefollowingtypesofCRUs: –Self-serviceCRUs:TheseCRUsunplugorareheldbynomorethantwoscrews.Examplesofthesetypes

ofCRUsincludetheacpoweradapter,powercord,battery,andharddiskdrive.Otherself-serviceCRUs dependingonproductdesignmightincludethememorymodule,wirelesscard,keyboard,andpalmrest withngerprintreaderandtouchpad.

–Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerthatareconcealedbyanaccess

panelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,thespecic CRUisvisible.

Page 90

Overall

Table3.Partslist—Overall

No.

FRU(Overall)

a-k

See“Miscellaneousparts”onpage88.

LCDunit(see“LCDFRUs”onpage86

)

2LLPPowerBoard90000350N

FRUNo.

CRU ID

3LLPFunctionBoard90000351N

90201078N

LLPUpperCaseW/TP

LLPFingerPrintBoard90000349N

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Table3.Partslist—Overall(continued)

No.

FRU(Overall)

FRUNo.

6Batterypack,6cell,2.2Ah121500047

121500049 121500048 121500050

6Batterypack,6cell,2.8Ah121500052

121500053

LLPSpeakerL

LLPSpeakerR

LLPLowerCase

Opticaldrive,12.7mm,Rambo

90201084N

90201085N

90201073N

25201635 25201106 25201499 25201487

10Blankbezel101500142N

11LLPRAMDoor90201074N

SATAharddiskdrive,320G,5400rpm

16005211 16200068 16200097

SATAharddiskdrive,500G,5400rpm

16200067 16200118 16200090 16200098

SATAharddiskdrive,320G,7200rpm

16005030 16200194 16200092 16200099

SATAharddiskdrive,500G,7200rpm

16200124 16200195 16200100

SATAharddiskdrive,750G,5400rpm

16200119 16200121 16200192

SATAharddiskdrive,1TB,5400rpm

16200120 16200193

mSATAsolid-statedrive,16G

16200215 16200241

mSATAsolid-statedrive,128G

16200131 16200129 16200240

Intel6205NMOWMPCIENBHMCWLAN

Intel2230BGN+BTMPCIEHMCWlan

BroadcomBCM43228+BCM20702abgn&BT4.0

20002533N

20200078N

20200098 20200099

BroadcomBCM4313+BCM20702bgn&&BT4.0

20200100 20200101

CybertanBroadcomBCM43131x1BGNMOW

20200102N

CRU ID

Chapter9.Partslist85

Page 92

Table3.Partslist—Overall(continued)

No.

FRU(Overall)

LiteonRealtek1x1BGNHMCWLANStockton

15Microprocessor1100365N

Memorymodule,2GB,DDRIII1600

Memorymodule,4GB,DDRIII1600

LLPMBDISN13P-NS2GW/HDMIWO/BT/3G

LLPMBW8DISN13P-NS12GWO/BT/3G

LLPMBW8PDISN13P-NS12GWO/BT/3G

LSSThermalModuleDIS,withFAN

19LLPMicrophone90201081N

Keyboard(see“Keyboard”onpage88)

—

acpoweradapter(see“acpoweradapters”onpage88

)

FRUNo.

20200016N

11200340 11200639 11200346 11200343

11200341 11200640 11200347 11200344

90000352N

90001428N

90001429N

90200874N

CRU ID

LCDFRUs

ZhaoYangK49modelsusea14-inch,high-denition(HD),light-emittingdiode(LED),liquid-crystaldisplay (LCD).(T able4“Partslist-LCD”onpage87).

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Table4.Partslist-LCD

No.FRUFRUNo.

CRU ID

LLPLCDBezelW/Camerahole

2LLPHingeL+R90201077N

3LLPAntennaR90201080N

LSSCamera1M

LLPLCDCoverW/Sponge

LLPLCDCable

LLPAntennaL90201079N

LCDmodule,14.0-inch,HD,anti-glair

90201072N

90000319N

90201071N

90201063N

18200240

N 18200238 18200237 18200239

Chapter9.Partslist87

Page 94

Keyboard

Table5.Partslist-Keyboard

Language

U.S.English

FRUNO.

(Windows7)

25203603 25203604

FRUNO. (Windows

25210002 25210003 25210004

Miscellaneousparts

Table6.Partslist-Systemmiscellaneousparts

FRUFRUNo.

(d)LSSFPBracket

(e)LLPDC-INBracket

(g)LLPUSBBracket

(i)LLPODDBracket

(j)LLPODDBezel

(k)LLPHDDBracket

LLPLCDBezelScrewPad

LLPScrewpack

CRUID

CRU ID

90201001N

90201069N

90201068N

90201070N

90201075N

90201076N

90201082N

90201083N

Table7.Partslist-Cablemiscellaneousparts

FRUFRUNo.

(a)LLPPowerBoardCable

(b)LLPFunctionBoardCable

(c)LSSFPBoardCable

(f)LLPDC-INCable

(h)LLPUSBBoardCable

acpoweradapters

Table8.Partslist—acpoweradapters

FRUFRUNo.

3-pinadapter36001941

Powercords

ALenovopowercordforaspeciccountryorregionisusuallyavailableonlyinthatcountryorregion.

CRU ID

90201064N

90201065N

90000318N

90201067N

90201066N

CRU ID

N 36001927 36001942

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Table9.Partslist-3-pinpowercords

Countryorregion

China

FRUNo.

CRU ID

145000600

N 145000568 145000538

Chapter9.Partslist89

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AppendixA.Notices

Lenovomaynotoffertheproducts,services,orfeaturesdiscussedinthisdocumentinallcountries.Consult yourlocalLenovorepresentativeforinformationontheproductsandservicescurrentlyavailableinyour area.AnyreferencetoaLenovoproduct,program,orserviceisnotintendedtostateorimplythatonlythat Lenovoproduct,program,orservicemaybeused.Anyfunctionallyequivalentproduct,program,orservice thatdoesnotinfringeanyLenovointellectualpropertyrightmaybeusedinstead.However,itistheuser's responsibilitytoevaluateandverifytheoperationofanyotherproduct,program,orservice.

Lenovomayhavepatentsorpendingpatentapplicationscoveringsubjectmatterdescribedinthis document.Thefurnishingofthisdocumentdoesnotgiveyouanylicensetothesepatents.Youcansend licenseinquiries,inwriting,to:

Lenovo(UnitedStates),Inc. 1009ThinkPlace-BuildingOne Morrisville,NC27560 U.S.A. Attention:LenovoDirectorofLicensing

LENOVOPROVIDESTHISPUBLICA TION“ASIS”WITHOUTWARRANTYOFANYKIND,EITHEREXPRESS ORIMPLIED,INCLUDING,BUTNOTLIMITEDTO,THEIMPLIEDWARRANTIESOFNON-INFRINGEMENT, MERCHANTABILITYORFITNESSFORAPARTICULARPURPOSE.Somejurisdictionsdonotallow disclaimerofexpressorimpliedwarrantiesincertaintransactions,therefore,thisstatementmaynotapply toyou.

Thisinformationcouldincludetechnicalinaccuraciesortypographicalerrors.Changesareperiodically madetotheinformationherein;thesechangeswillbeincorporatedinneweditionsofthepublication. Lenovomaymakeimprovementsand/orchangesintheproduct(s)and/ortheprogram(s)describedinthis publicationatanytimewithoutnotice.

Theproductsdescribedinthisdocumentarenotintendedforuseinimplantationorotherlifesupport applicationswheremalfunctionmayresultininjuryordeathtopersons.Theinformationcontainedinthis documentdoesnotaffectorchangeLenovoproductspecicationsorwarranties.Nothinginthisdocument shalloperateasanexpressorimpliedlicenseorindemnityundertheintellectualpropertyrightsofLenovo orthirdparties.Allinformationcontainedinthisdocumentwasobtainedinspecicenvironmentsandis presentedasanillustration.Theresultobtainedinotheroperatingenvironmentsmayvary.

Lenovomayuseordistributeanyoftheinformationyousupplyinanywayitbelievesappropriatewithout incurringanyobligationtoyou.

Anyreferencesinthispublicationtonon-LenovoWebsitesareprovidedforconvenienceonlyanddonotin anymannerserveasanendorsementofthoseWebsites.ThematerialsatthoseWebsitesarenotpartof thematerialsforthisLenovoproduct,anduseofthoseWebsitesisatyourownrisk.

Anyperformancedatacontainedhereinwasdeterminedinacontrolledenvironment.Therefore,theresult obtainedinotheroperatingenvironmentsmayvarysignicantly.Somemeasurementsmayhavebeen madeondevelopment-levelsystemsandthereisnoguaranteethatthesemeasurementswillbethesame ongenerallyavailablesystems.Furthermore,somemeasurementsmayhavebeenestimatedthrough extrapolation.Actualresultsmayvary.Usersofthisdocumentshouldverifytheapplicabledatafortheir specicenvironment.

Page 98

Electronicemissionsnotices

ForelectronicemissioninformationonClassBdigitaldevices,refertothecorrespondinginformationin theUserGuide.

EUcontact:Lenovo,Einsteinova21,85101Bratislava,Slovakia

Trademarks

ThefollowingtermsaretrademarksofLenovointheUnitedStates,othercountriesorboth:

ActiveProtectionSystem Lenovo OneKey

WindowsisthetrademarkoftheMicrosoftgroupofcompanies.

IntelisthetrademarkofIntelCorporationoritssubsidiariesintheUnitedStates,othercountries,orboth.

Othercompany,product,orservicenamesmaybethetrademarksorservicemarksofothers.

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