4ReplacementProcedures4.1General
4-4
SatelliteL300D/L305D/SatelliteProL300D/EQUIUML300D/SATEGOL300D
MaintenanceManual
BeforeYouBegin
Beforeyoubegintodisassemblythecomputer,keepinmindtheprecautionsandadvicein
thissection.AlwaysbegindisassemblybyremovingtheACadapterandbatterypack.
Removetheoptionalpartsandaccessoriesaswell.Theproceduresforremovingthebatteries
willbeexplainedlater.
Disassemblethecomputeronlywhenanabnormalityhasoccurred.
Useonlytherecommendedtools.
Torunandstorethecomputer,besuretoprepareaworkingenvironmentthatisfreefrom:
Dustandcontaminants
Staticelectricity
Extremelyhighorlowtemperaturesandextremelyhighhumidity
RunthediagnostictestsexplainedinChapter2ofthismanualtoidentifytheFRUthathas
probablycausedthesystemfailure.
Performonlytherequiredmachineoperations.Useonlythedisassemblyandreinstallation
proceduresdescribedinthismanual.
Placetheremovedcomponentsinasafeplaceawayfromthecomputersothattheyarenot
damagedorgetinthewayofyoudoingyourwork.
Normally,anumberofscrewsneedtoberemovedorreplacedduringdisassembling.Place
theremovedscrewsinasafeplacesothatyoucaneasilyfindtherightscrewsfortheright
components.
Whenassemblingthecomputer,usethespecifiedscrewstofastenthepartstothespecified
locations.Seetheappropriateexplanationsandfiguresforscrewsizes.
Toavoidpersonalinjury,usecaretohandlecomponentsthathavesharpedgesorcorners.
AfteryouhavereplacedaFRU,checkthattheFRUworkscorrectlytoensurenormal
computeroperation.