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Error!UsetheHometabtoapply2tothetextthatyouwanttoappearhere.Error!Usethe
Hometabtoapply2tothetextthatyouwanttoappearhere. 4ReplacementProcedures
SatelliteL550MaintenanceManual 4-1
4.1 General
ThischapterexplainshowtodisassemblethelaptopandreplaceFieldReplaceableUnits(FRUs).
SomereplacementproceduresmaynotrequireyoutoremoveallthesurroundingFRUsto
replaceonlyoneFRU.ThechartbelowshowstheFRUsintheorderinwhichtheyshouldbe
removedinatop-downmanner,irrespectiveoftheirphysicallocations.TheFRUsshowninthe
topareaofthechartshouldnormallyberemovedbeforeremovingtheFRUsshowninthebottom
area.ToreplacetheFRUs,firstidentifythesuspectFRUforthesystemfailure.Next,according
tothischart,determinetheFRUsthatneedtoberemovedbeforeremovingthesuspectFRU.
AfteryoudeterminethoseFRUs,gototheappropriatesectionsaccordingtothesectionnumbers
shownintheboxes.Then,startremovalandreplacement.