Laptop User Manual

Chapter7.FRUreplacementnotices

ExternalCRUstatementtocustomers:

Someproblemswithyourproductcanberesolvedwithareplacementpartyoucaninstallyourself,called

a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasSelf-serviceCRUsandothers

aredesignatedasOptional-serviceCRUs.InstallationofSelf-serviceCRUsisyourresponsibility;youmay

requestthatLenovoinstallsanOptional-serviceCRUaccordingtothewarrantyserviceforyourproduct.

WhereyouareinstallingtheCRU,LenovowillshiptheCRUtoyou.CRUinformationandreplacement

instructionsareshippedwithyourproductandareavailablefromLenovoatanytimeuponrequest.Y oumay

ndalistofCRUsinthepublicationsthatshipwithyourproductorathttp://www.lenovo.com/CRUs.Y ou

mayberequiredtoreturnthedefectivepartthatisreplacedbytheCRU.Whenreturnisrequired:(1)return

instructions,aprepaidshippinglabel,andacontainerwillbeincludedwiththereplacementCRU;and(2)you

maybechargedforthereplacementCRUifLenovodoesnotreceivethedefectivepartwithinthirty(30)days

ofyourreceiptofthereplacementCRU.SeeyourLenovoLimitedWarrantydocumentationforfulldetails.

Thischapterpresentsnoticesrelatedtoremovingandreplacingparts.Readthischaptercarefullybefore

replacinganyFRU.

Screwnotices

Loosescrewscancauseareliabilityproblem.InThinkPadnotebookcomputers,thisproblemisaddressed

withspecialnylon-coatedscrewsthathavethefollowingcharacteristics:

•Theymaintaintightconnections.

•Theydonoteasilycomeloose,evenwithshockorvibration.

•Theyarehardertotighten.

•Eachoneshouldbeusedonlyonce.

Dothefollowingwhenyouservicethecomputer:

•Keepthescrewkitinyourtoolbag.Forthepartnumber(P/N)ofthescrewkit,see“Miscellaneous

parts”onpage95.

•Alwaysusenewscrews.

•Useatorquescrewdriverifyouhaveone.

Tightenscrewsasfollows:

•Plastictoplastic

Turnanadditionalangleof90degreesafterthescrewheadtouchesthesurfaceoftheplasticpart.

•Logiccardtoplastic

Turnanadditionalangleof180degreesafterthescrewheadtouchesthesurfaceofthelogiccard.