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2TroubleshootingProcedures
QOSMIOF50-QOSMIOF55-DYNABOOKQOSMIOF50SeriesMaintenanceManual
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Table2-2DC-INLED
AC-INLED Powersupplystatus
Solidon ACpowerexists(LEDissolidBlue).
Off NoACpowerexists.
Tocheckthepowersupplystatus,installabatterypackandconnectanACadaptortothe
DC-INportonthecomputerandtoapowersupply.
IftheDC-INLEDorBatteryLEDisnotlit,gotoProcedure2.
Procedure2 Adaptor/batteryreplacement
Afaultyadaptormaynotsupplypowerormaynotchargethebattery.PerformCheck1.
Check1 ConnectanewACadaptor.Iftheproblemisnotresolved,gotoCheck2.
Check2 Insertanewbattery.Iftheproblemisstillnotresolved,gotoProcedure3.