Lenovo E49 Manuale Utente Scaricare il pdf (Pagina 49)

Chapter7.RemovingandreplacingaFRU

ThischapterprovidesinstructionsonhowtoremoveorreplaceaFRU.

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.

Generalguidelines

WhenremovingorreplacingaFRU,besuretoobservethefollowinggeneralguidelines:

1.Donottrytoserviceanycomputerunlessyouhavebeentrainedandcertied.Anuntrainedpersonruns

theriskofdamagingparts.

2.BeforereplacinganyFRU,reviewChapter6“FRUreplacementnotices”onpage41.

3.BeginbyremovinganyFRUsthathavetoberemovedbeforereplacingthefailingFRU.Anysuch

FRUsarelistedatthebeginningofeachFRUreplacementprocedure.Removethemintheorderin

whichtheyarelisted.

4.FollowthecorrectsequenceinthestepsforremovingaFRU,asgiveninthedrawingsbythenumbers

insquarecallouts.

5.Whenturningascrew,turnitinthedirectionasgivenbythearrowinthedrawing.

6.WhenremovingaFRU,moveitinthedirectionasgivenbythearrowinthedrawing.

7.ToputthenewFRUinplace,reversetheremovalprocedureandfollowanynotesthatpertainto

replacement.Forinformationaboutconnectingandarranginginternalcables,seeChapter8“Locations”

onpage73.

8.WhenreplacingaFRU,usethecorrectscrew(s)asshowninthereplacementprocedure.

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).

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 97 98

Nessun commento

Lenovo E49 Manuale Utente Pagina 49