Chapter8.RemovingorreplacingaFRU
ThischapterprovidesinstructionsonhowtoremoveorreplaceaFRU.
CRUstatementforcustomers:
Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,called
a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothers
aredesignatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.For
optional-serviceCRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProvider
installtheCRUaccordingtothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,
LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshippedwithyour
productandareavailablefromLenovoatanytimeuponrequest.Y oucanfindalistofCRUsforyourproduct
inthisHardwareMaintenanceManual.Anelectronicversionofthismanualisavailablefordownloadingat
http://www.lenovo.com/support.YoumightberequiredtoreturnthedefectiveCRU.Whenreturnisrequired:
(1)returninstructions,aprepaidshippinglabel,andacontainerwillbeincludedwiththereplacement
CRU;and(2)youmightbechargedforthereplacementCRUifLenovodoesnotreceivethedefective
partwithinthirty(30)daysofyourreceiptofthereplacementCRU.SeeyourLenovoLimitedWarranty
documentationforfulldetails.
Generalguidelines
WhenremovingorreplacingaFRU,besuretoobservethefollowinggeneralguidelines:
1.Donottrytoserviceanycomputerunlessyouhavebeentrainedandcertified.Anuntrainedpersonruns
theriskofdamagingparts.
2.BeforereplacinganyFRU,reviewChapter7“FRUreplacementnotices”onpage55.
3.BeginbyremovinganyFRUsthathavetoberemovedbeforereplacingthefailingFRU.AnysuchFRUs
arelistedatthebeginningofeachFRUreplacementsection.Removethemintheorderinwhichthey
arelisted.
4.FollowthecorrectsequenceinthestepsforremovingaFRU,asgiveninthedrawingsbythenumbers
insquarecallouts.
5.Whenturningascrew,turnitinthedirectionasgivenbythearrowinthedrawing.
6.WhenremovingaFRU,moveitinthedirectionasgivenbythearrowinthedrawing.
7.ToputthenewFRUinplace,reversetheremovalprocedureandfollowanynotesthatpertainto
replacement.
8.WhenreplacingaFRU,usethecorrectscrewsasshowninthereplacementprocedures.
DANGER
BeforeremovinganyFRU,turnoffthecomputer,unplugallpowercordsfromelectricaloutlets,
disconnectanyinterconnectingcables,andthendisablethebuilt-inbattery.
Attention:AfterreplacingaFRU,donotturnonthecomputeruntilyouhavemadesurethatallscrews,
springs,andothersmallpartsareinplaceandnonearelooseinsidethecomputer.Verifythisbyshaking
thecomputergentlyandlisteningforrattlingsounds.Metallicpartsormetalflakescancauseelectrical
shortcircuits.
Attention:Thesystemboardissensitiveto,andcanbedamagedby,electrostaticdischarge(ESD).Before
touchingit,establishpersonalgroundingbytouchingagroundpointwithonehandorbyusinganESDstrap.
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