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1、4.1General4ReplacementProcedures44.1GeneralThissectionexplainshowtodisassemblethecomputerandreplaceFieldReplaceableUnits(FRUs).ItmaynotbenecessarytoremovealltheFRUsinordertoreplaceone.ThechartbelowisaguidetowhichFRUsneedtoberemovedinordertoremoveothers.Alwayssta
2、rtbyremovingthebatterypack,next,optionalitemssuchastheoptionalPCcard,optionalminiPCIcardandoptionalmemorymodule,thenfollowthelineonthecharttodeterminewhichFRUyoumustremovenextinordertorepairtheoneyouthinkiscausingthecomputertooperateimproperly.Refertotheexamplea
3、tthebottomofthepage.HowtoSeetheChartTwoexamplesofreferringtothechartareshownbelow.•RemovingtheSound/FIRBoard.TheHDD,SlimSelectBayOptions,WirelessLANCard,RTCbattery,keyboard,MemoryModules,IPSboardandPalmRestmustberemovedbeforeremovingtheSound/FIRboard.•Removingth
4、eLCDModuleTheFLinverterboardanddisplaymaskabovetheLCDmodulemustberemovedtoaccesstheLCDModule.PORTEGEM100MaintenanceManual(960-452)4-14ReplacementProcedures4.1GeneralSafetyPrecautionsBeforeyoubegindisassembly,readthefollowingsafetyprecautionsandobservethemcareful
5、lyasyouwork.DANGER:1.AlwaysusethegenuinebatterythatisauthorizedbyToshibaorcompatiblewiththeunit.Sinceotherbatterypackshavedifferentspecifications,theymaybeincompatiblewiththeunit,andmayburstorexplode.Neverheatordisassemblethebatterypack,asthatcouldcauseleakageof
6、alkalinesolution.Neverthrowthebatterypackintoafire,asthatcouldcausethebatterypacktoexplode.2.Thepowersupply,FLinverterandothercomponentscarryhighvoltages.Ifyouneedtoturnonthepowerofapartiallydisassembledcomputertocheckitsoperation,beverycarefulnottotouchconnecto
7、rsorcomponents,inordertoavoidtheriskofelectricshock.Also,donotdisassembleindividualcomponentsinfirst-levelmaintenance.WARNING:1.TurnoffthepoweranddisconnecttheACadaptorfromthepowersource,toavoidexposuretoelectricshock.2.Batteriesinthecomputerretainanelectricalch
8、arge,sothereisdangerofelectricalshockevenwhenthecomputerisdisconnectedfromanACpowersource.Removeanymetaljewelryoraccessoriessuchasnecklaces,braceletsorrings,inorderto
