Toshiba PROL550 Laptop User Manual


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2TroubleshootingProcedures
SatelliteL550/SatelliteL555/SatelliteL557/SatelliteProL550
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Procedure1 Diagnostictest
RunthefunctioningProgramonWindowsmodelorDOSmodel,whichwilldisplaythetest
result.
IftestsanddiagnosticsresultabnormalgotoProcedure2.Ifanerrorisnotlocated,thebutton
functioningisproperly.
Procedure2 Replacementcheck
DisassemblethecomputerfollowingthestepsdescribedinChapter4,Replacement
Procedures,andperformthefollowingchecks.
Check1 MakesurethatButtontestoperationiscorrect,gotoCheck2.
Check2MakesurethattheFFCofthebuttonisassembleOK,gotoCheck3
Check3 Thebuttonmaybedamaged.Replaceitwithanewonefollowingthe
instructionsinChapter4.
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