Lenovo ThinkPad Helix 20CG, ThinkPad Helix 20CH Hardware maintenance manual [ko]

ThinkPadHelixHardwareMaintenanceManual

MachineType:20CGand20CH

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation

underAppendixA“Notices”onpage77.

FirstEdition(November2014)

©CopyrightLenovo2014.

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

Contents

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

Chapter1.Safetyinformation......1

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

Electricalsafety...............1

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

Handlingdevicesthataresensitivetoelectrostatic

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

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

Safetynotices(multilingualtranslations)......4

Chapter2.Importantservice

information..............19

StrategyforreplacingFRUs.........19

Importantnoticeforreplacingasystem

board................19

Howtouseerrormessage........20

StrategyforreplacingFRUsforCTO,specialbid

model,andstandardmodels.........20

Productdefinition............20

FRUidentification............20

Chapter3.Generalcheckout.....23

Whattodofirst..............23

Checkoutguide..............24

LenovoSolutionCenter.........24

Quicktestprograms...........24

UEFIdiagnosticprogram.........25

Bootablediagnosticprograms.......25

Powersystemcheckout...........26

Checkingthebuilt-inbatteryandoperational

charging...............26

Checkingthecoin-cellbattery.......27

Checkingtheacpoweradapter......27

Chapter4.Relatedservice

information..............29

Restoringthefactorycontentsbyusingthe

RecoveryDiscSet.............29

Recoveryoverview.............30

Refreshingyourtablet..........30

Resettingyourtablettothefactorydefault

settings................30

Usingtheadvancedstartupoptions....31

RecoveringyourtabletiftheWindows

operatingsystemfailstostart.......31

CreatingandusingarecoveryUSBdrive..31

Passwords................32

Power-onpassword...........32

Supervisorpassword..........33

Harddiskpassword...........33

Symptom-to-FRUindex...........33

Errorcodes..............34

Intermittentproblems..........35

Undeterminedproblems.........35

Chapter5.Locations.........37

Locatingtabletcontrols,connectors,and

indicators.................37

LocatingFRUsandCRUs..........38

MajorFRUs..............39

Miscellaneouskitsandotherparts.....40

LookingupFRUinformation.........41

Chapter6.FRUreplacement

notices................43

Screwnotices...............43

Retainingserialnumbers...........44

Chapter7.Removingorreplacinga

FRU..................45

Generalguidelines.............45

Beforeservicingthetablet..........46

Disablingthebuilt-inbattery.......46

RemovingtheSIMcard,SDcard,andsmart

card.................46

1010Backcoverassembly,smart-cardreader,

andsmart-card-readercable.........48

1020Power-buttonandscreen-rotation-lock

button..................52

1030Built-inbattery............53

1040WirelessWANcard...........54

1050M.2solid-statedriveandsolid-state-drive

mylar..................56

1060Fingerprint-readermodule........57

1070LCDcable..............58

1080Digitizercable.............59

1090Coin-cellbattery............60

1100NFCcardandNFC-cardcable......61

1110Front-facingcameramoduleand

front-facing-camera-modulecable.......63

1120dc-incableanddc-in-cablebracket....64

1130Thermalmodule............65

1140USB-connectorbracket.........67

1150Speakers..............68

1160I/OcardandI/O-cardcable.......69

1170Systemboard.............71

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1180Rear-facingcameramodule.......73

1190Wireless-WANantennaassembly.....73

1200Wireless-LANantennaassembly.....75

1210LCDmodule.............76

AppendixA.Notices..........77

Electronicemissionnotices..........78

Trademarks................78

AppendixB.Abbreviationand

acronymtable.............79

iiThinkPadHelixHardwareMaintenanceManual

Aboutthismanual

ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad

Machine

ThinkPadHelix

Machinetype(MT)

20CGand20CH

®

products.

Important:

•ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPadproducts.Use
thismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.

•BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safety
information”onpage1

andChapter2“Importantserviceinformation”onpage19.

©CopyrightLenovo2014

iii

ivThinkPadHelixHardwareMaintenanceManual

Chapter1.Safetyinformation

Thischapterpresentsfollowingsafetyinformationthatyoushouldbefamiliarwithbeforeyouservice
aThinkPadtabletcomputer.

•“Generalsafety”onpage1

•“Electricalsafety”onpage1

•“Safetyinspectionguide”onpage3

•“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3

•“Groundingrequirements”onpage4

•“Safetynotices(multilingualtranslations)”onpage4

Generalsafety

Followtheserulestoensuregeneralsafety:

•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.

•Whenliftinganyheavyobject:

1.Makesurethatyoucanstandsafelywithoutslipping.

2.Distributetheweightoftheobjectequallybetweenyourfeet.

3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.

4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.Donotattempttoliftanyobjectthatweighsmorethan16kg(35lb)orthat

youthinkistooheavyforyou.

•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.

Attention:Metalobjectsaregoodelectricalconductors.

•Wearsafetyglasseswhenyouareworkinginconditionsthatmightbehazardoustoyoureyes.The
conditionsincludehammering,drilling,soldering,cuttingwire,attachingsprings,usingsolvents,and
soon.

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

•Reinstallotherpartsthatyouhaveremoved.

Electricalsafety

Observethefollowingruleswhenworkingonelectricalequipment.

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Important:

•Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterial
thatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.

•Manycustomershave,neartheirequipment,rubberfloormatsthatcontainsmallconductivefibersto
decreaseelectrostaticdischarges.Donotusethistypeofmattoprotectyourselffromelectricalshock.

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

•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.

•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–Removingorinstallingmainunits

•Beforeyoustarttoworkonthemachine,disconnectthepowercord.Ifyoucannotunplugit,poweroff
thewallboxthatsuppliespowertothemachine,andlockthewallboxintheoffposition.

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

Attention:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.

–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour

pocketorbehindyourback.

Attention:Anelectricalshockcanoccuronlywhenthereisacompletecircuit.Byobservingtheabove
rule,youmaypreventacurrentfrompassingthroughyourbody.

–Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor

thattester.

–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas

metalfloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;Instructionsforthese
precautionsareinthesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuring
highvoltages.

•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.

•Donotusewornorbrokentoolsandtesters.

•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.

•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistfloors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.

•Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.

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

•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.

2ThinkPadHelixHardwareMaintenanceManual

Safetyinspectionguide

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

Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.

Considertheseconditionsandthesafetyhazardstheypresent:

•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock)

•Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor

•Mechanicalhazards,suchaslooseormissinghardware

Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning
ofeveryservicetask.Beginthecheckswiththepoweroffandthepowercorddisconnected.

Checklist:

1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).

2.Turnoffthetablet.

3.Disablethebuilt-inbattery.Fortheinstructiononhowtodisablethebuilt-inbattery,see“Disablingthe
built-inbattery”onpage46

4.Disconnectthepowercord.

5.Checkthepowercordforthefollowing:

a.Makesurethatathird-wiregroundconnectorisingoodcondition.Useametertomeasurethe

third-wiregroundcontinuity.Ensurethatthecontinuitybetweentheexternalgroundpinandthe
framegroundis0.1ohmorless.

b.Thepowercordisthetypespecifiedinthepartslist.

c.Insulationisnotfrayedorworn.

6.RemovetheLCDmoduleassembly.

7.Checkforcrackedorbulgingbuilt-inbatteries.

8.Checkforanyobviousnon- ThinkPadalterations.Usegoodjudgmentastothesafetyofany
non-ThinkPadalterations.

9.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.

10.Checkforworn,frayed,orpinchedcables.

11.Checkthatthebuilt-inbatteryfasteners(screwsorrivets)havenotbeenremovedortamperedwith.

.

Handlingdevicesthataresensitivetoelectrostaticdischarge

Anytabletpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthecharge.Sothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.

Notes:

Chapter1.Safetyinformation3

1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.

2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.

WhenhandlingESD-sensitiveparts:

•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.

•Avoidcontactwithotherpeople.

•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.

•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.

•Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen
handlingESD-sensitivedevices.

•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.

Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.

–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.

–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor

referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.

–Usetheroundgroundprongoftheacplugonac-operatedtablets.

Groundingrequirements

Electricalgroundingofthetabletisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.

Safetynotices(multilingualtranslations)

Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:

•English

•Arabic

•BrazilianPortuguese

•French

•German

•Hebrew

•Japanese

•Korean

•Spanish

•TraditionalChinese

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18ThinkPadHelixHardwareMaintenanceManual

Chapter2.Importantserviceinformation

Thischapterintroducesfollowingimportantserviceinformationthatappliestoallmachinetypessupported
bythismanual:

•“StrategyforreplacingFRUs”onpage19
–“Importantnoticeforreplacingasystemboard”onpage19
–“Howtouseerrormessage”onpage20

•“StrategyforreplacingFRUsforCTO,specialbidmodel,andstandardmodels”onpage20
–“Productdefinition”onpage20
–“FRUidentification”onpage20

Important:

•AdvisecustomerstovisittheLenovo
customerscanviewthesoftwarefixes,downloadthedrivers,andseetheinstructionsforinstallingthe
drivers.Foradditionalassistance,customersmightcalltheLenovoCustomerSupportCenter.Telephone
numbersfortheLenovoSupportCenterareavailableat:
http://www.lenovo.com/support/phone

•Servicetrainingdocuments,forexamplethevideosthatshowtheFRUremovalsorreplacements,are
providedtoLenovoauthorizedservicetechnicians.Thetrainingdocumentsareavailableat:
http://www.lenovoservicetraining.com

StrategyforreplacingFRUs

®

SupportWebsiteathttp://www.lenovo.com/support.The

Beforereplacingparts:

Ensurethatallsoftwarefixes,drivers,andUEFIBIOSdownloadsareinstalledbeforereplacinganyFRUs
listedinthismanual.

Afterasystemboardisreplaced,ensurethatthelatestUEFIBIOSisloadedtothesystemboardbefore
completingtheserviceaction.

Todownloadsoftwarefixes,drivers,andUEFIBIOS,gotohttp://www.lenovo.com/ThinkPadDriversand
followtheinstructionsonthescreen.

•IfyouareinstructedtoreplaceaFRUbutthereplacementdoesnotcorrecttheproblem,reinstallthe
originalFRUbeforeyoucontinue.

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

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

Attention:Thesetupconfigurationonthetabletyouareservicingmayhavebeencustomized.Running
AutomaticConfigurationmayalterthesettings.Notethecurrentconfigurationsettings(usingtheView
Configurationoption);then,whenservicehasbeencompleted,verifythatthosesettingsremainineffect.

Importantnoticeforreplacingasystemboard

Attention:Whenhandlingasystemboard:

•Donotdropasystemboardorapplyanyexcessiveforcetoit.

©CopyrightLenovo2014

19

•Avoidroughhandlingofanykind.

•AvoidbendingasystemboardandhardpushingtopreventcrackingateachBallGridArray(BGA)chipset.

Howtouseerrormessage

Usetheerrorcodesdisplayedonthescreentodiagnosefailures.Ifmorethanoneerrorcodeisdisplayed,
beginthediagnosiswiththefirsterrorcode.Whatevercausesthefirsterrorcodemayalsocausefalseerror
codes.Ifnoerrorcodeisdisplayed,seewhethertheerrorsymptomislistedintheSymptom-to-FRU
Indexforthetabletyouareservicing.

StrategyforreplacingFRUsforCTO,specialbidmodel,andstandard models

ThistopicprovidesinformationaboutthemodeltypesandFRUidentification.

Productdefinition

Thistopicintroducesdifferentmodeltypesandhowtoidentifyeachtype.

DynamicConfigureT oOrder(CTO)

ThismodelprovidestheabilityforacustomertoconfigureaLenovosolutionfromawebsite,andhavethis
configurationsenttofulfillment,whereitisbuiltandshippeddirectlytothecustomer.Themachinelabeland
eSupportwillloadtheseproductsasthe4-characterMT,4-charactermodeland2-charactercountrycode.
Themodelis“CTO1”andthedefaultcountrycodeis“WW”(example:20AACTO1WW).

Specialbidmodel

ThismodelisauniqueconfigurationthathasbeennegotiatedbetweenLenovoandthecustomer.Aunique
MTMconsistsofa4-characterMT ,a4-charactermodel,andanumeric2-charactercountrycodeisprovided
tothecustomertoplaceorders(example:20AA000955).Thecountrycodeassignedisnumericanddoes
notdesignateaspecificcountryorregion.ThecustommodelfactsheetfortheMTMindicateswhichcountry
thespecialbidMTMissetupfor.Specialbidofferingisnotgenerallyannounced.

Standardmodel

Standardmodels(fixedconfiguration)areannouncedandofferedtoallcustomers.TheMTMportionofthe
machinelabelconsistsofa4-characterMT,a4-charactermodel,andanalphabetic2-charactercountry
code.Thecountrycodeassignedisalphabeticandrepresentsadesignatedcountryorregion(example:
20AA0009UK).

FRUidentification

UseLenovoeSupporttoidentifymajorFRUs,FRUpartnumbers,andFRUdescriptionsforaproductat
anMT-serialnumberlevel.ExamplesofmajorFRUsareharddiskdrive,systemboard,andliquidcrystal
display(LCD).

ToidentifythemajorFRUsforaproduct,dothefollowing:

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

2.TypetheMachineTypeandSerialNumberinthecorrespondingfields.

3.TapSubmit.

eSupportalsocanbeusedtoviewthegeneralFRUlistforaproduct.TheFRUlistisagenerallistof
componentsanddoesnotcontainspecificmodelinformation.

TogetthegeneralFRUlistforaproduct,dothefollowing:

20ThinkPadHelixHardwareMaintenanceManual

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

2.Followtheinstructionsonthescreentoselectaproduct.

3.TaptheProduct&Partstab.

4.SelectSystemServicePartstoviewageneralFRUlist.

Chapter2.Importantserviceinformation21