Lenovo Thinkpad L570 Owner's manual

L570HardwareMaintenanceManual

Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Noticesonpage113.
SecondEdition(March2017)
©CopyrightLenovo2017.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuanttoaGeneralServices
Administration“GSAcontract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.
GS-35F-05925.

Contents
Abotthismanal...........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..............25
StrategyforreplacingFRUs.........25
Strategyforreplacingaharddiskdrive,a
solid-statedrive,oranM.2solid-statedrive.25
Importantnoticeforreplacingasystem
board................26
Howtouseerrormessage........26
StrategyforreplacingFRUsforCTO,special-bid,
andstandardmodels............26
Productdefinition............26
FRUidentification............26
Chapter3.Generalcheckot.....29
Whattodofirst..............29
Checkoutguide..............30
Diagnosingproblems..........30
Quicktestprograms...........31
UEFIdiagnosticprogram.........31
Bootablediagnosticprograms.......32
Powersystemcheckout...........32
Checkingtheacpoweradapter......33
Checkingoperationalcharging......33
Checkingthebatterypack........34
Checkingthecoin-cellbattery.......34
Chapter4.Relatedservice
information..............35
Recoveryinformation............35
Restoringthefactorycontentswiththe
RecoveryDiscSetfortheWindows7
operatingsystem............35
RecoveryinformationfortheWindows7
operatingsystem............36
RecoveryinformationfortheWindows10
operatingsystem............38
Passwords................40
Power-onpassword...........40
Hard-diskpassword...........40
Supervisorpassword..........40
Howtoremovethepower-onpassword...40
Howtoremovethehard-diskpassword...41
Powermanagement............41
Screenblankmode(fortheWindows7
operatingsystemonly)..........41
Sleepmode..............42
Hibernationmode...........42
Symptom-to-FRUindex...........43
Numericerrorcodes..........43
Errormessages............44
Beepsymptoms............44
LCD-relatedsymptoms.........45
Intermittentproblems..........46
Undeterminedproblems.........46
Chapter5.Locations.........49
Locatingcomputercontrols,connectors,and
indicators.................49
Statusindicators..............51
Functionkeysandkeycombinations......52
LocatingFRUsandCRUs..........54
MajorFRUsandCRUs..........55
LCDFRUsandCRUs..........57
Miscellaneouskits...........58
Connectorandcableguide........58
LookingupFRUinformation.......65
Chapter6.FRUreplacement
notices................67
Screwnotices...............67
Retainingserialnumbers...........68
Restoringtheserialnumberofthesystem
unit.................68
RetainingtheUUID...........69
ReadingorwritingtheECAinformation...69
Chapter7.Removingorreplacinga
FRU..................71
Beforeservicingthecomputer........72
1010Batterypack.............72
1020Bottomdoor.............73
1030Opticaldrive.............74
1040Internalstoragedrive..........74
©CopyrightLenovo2017i

1050Memorymodule............76
1060WWANcardorM.2solid-statedriveinthe
WWANcardslot..............77
1070WLANcard..............78
1080Coin-cellbattery............79
1090Thermal-fanassembly.........80
1100Keyboard..............82
1110Keyboardbezelassembly........84
1120Smartcardreaderanddummysmartcard.87
1130Fingerprintreaderassembly.......89
1140TrackpadcableandT rackpad......90
1150Powerbuttoncard...........91
1160ODDcard..............92
1170Audiocardandaudiocable.......93
1180Speakerassembly...........94
1190Systemboardassembly.........96
1200ExpressCardslotanddummyExpressCard.99
1210Saddlebrackets,dc-incable,andbasecover
assembly.................100
2010LCDunit...............103
2020LCDfrontbezel............105
2030Camera/microphonecombocard.....105
2040LCDpanel..............106
2050HingesandLCDcable.........107
2060AntennaassemblyandLCDrearcover
assembly.................109
AppendixA.Notices.........113
Electronicemissionsnotices.........114
Trademarks................114
AppendixB.Abbreviationtable...115
iiL570HardwareMaintenanceManual

Abotthismanal
ThismanualcontainsserviceandreferenceinformationforthefollowingThinkPad®notebookcomputer.
ThinkPadL570MachineTypes(MT):20J8,20J9,20JQ,and20JR
Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.
Important:
ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithThinkPadproducts.Use
thismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaThinkPadproduct,besuretoreadalltheinformationunderChapter1“Safety
informationonpage1andChapter2“Importantserviceinformationonpage25.
©CopyrightLenovo2017iii

ivL570HardwareMaintenanceManual

Chapter1.Safetyinformation
Thischapterpresentsfollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea
ThinkPadnotebookcomputer.
•“Generalsafetyonpage1
•“Electricalsafetyonpage2
•“Safetyinspectionguideonpage3
•“Handlingdevicesthataresensitivetoelectrostaticdischargeonpage3
•“Groundingrequirementsonpage4
•“Safetynotices(multilingualtranslations)onpage4
•“Lasercompliancestatement(multilingualtranslations)onpage19
Generalsafety
Followtheserulestoensuregeneralsafety:
•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Ensurethatyoustandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallybetweenyourfeet.
3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.Donotattempttoliftanyobjectthatweighsmorethan16kg(35lb)orthat
youthinkistooheavyforyou.
•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.
•Beforeyoustartthemachine,ensurethatotherservicetechniciansandthecustomer'spersonnelare
notinahazardousposition.
•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing
themachine.
•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.
•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Ensurethatyoursleeves
arefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.
•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,about8
centimeters(3inches)fromtheend.
•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing.
Attention:Metalobjectsaregoodelectricalconductors.
•Wearsafetyglasseswhenyouarehammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.
•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.
•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.
•Fanlouversonthemachinehelptopreventoverheatingofinternalcomponents.Donotobstructfan
louversorcoverthemwithlabelsorstickers.
©CopyrightLenovo20171

Electricalsafety
Observethefollowingruleswhenworkingonelectricalequipment.
Important:
Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterial
thatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.
Manycustomershave,neartheirequipment,rubberfloormatsthatcontainsmallconductivefibersto
decreaseelectrostaticdischarges.Donotusethistypeofmattoprotectyourselffromelectricalshock.
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–Removingorinstallingmainunits
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topoweroffthewallboxthatsuppliespowertothemachine,andtolockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposeelectricalcircuits,observethefollowingprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyoutoswitchoffthepower,if
necessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Attention:Anelectricalshockcanoccuronlywhenthereisacompletecircuit.Byobservingtheabove
rule,youcanpreventacurrentfrompassingthroughyourbody.
–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
–Blowersandfans
–Motorgenerators
–Similarunitslistedabove
Thispracticeensurescorrectgroundingoftheunits.
•Ifanelectricalaccidentoccurs:
2L570HardwareMaintenanceManual

–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.
Safetyinspectiongide
Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach
machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians
frominjury.Thisguideaddressesonlythoseitems.Youshouldusegoodjudgmenttoidentifypotential
safetyhazardsduetoattachmentofnon-ThinkPadfeaturesoroptionsnotcoveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.
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.Thepowercordshouldbetheauthorizedtypespecifiedforyourcomputer.Goto:
http://www.lenovo.com/serviceparts-lookup.
c.Insulationmustnotbefrayedorworn.
4.Checkforcrackedorbulgingbatteries.
5.Removethecover.
6.Checkforanyobviousnon-ThinkPadalterations.Usegoodjudgmentastothesafetyofany
non-ThinkPadalterations.
7.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.
8.Checkforworn,frayed,orpinchedcables.
9.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingdevicesthataresensitivetoelectrostaticdischarge
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD.)ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
Chapter1.Safetyinformation3

1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.EnsurethattheESDprotectivedevicesyouusehavebeencertified(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-operatedcomputers.
Grondingreqirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.
Safetynotices(mltilingaltranslations)
Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:
•English
•Arabic
•BrazilianPortuguese
•French
•German
•Hebrew
•Japanese
•Korean
•Spanish
•TraditionalChinese
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