2Troubleshooting 2.3PowerSupply
2-8 SatelliteL300D/L305D/SatelliteProL300D/EQUIUML300D/SATEGOL300DMaintenanceManual
Procedure2ConnectionCheck
Powerissuppliedtothesystemboardasillustratedbelow:
AC
adaptor
Syst emboa rd
ACpow ercor d ACada ptorc ord
Batt erypa ck
Followthestepsbelowtocheckwhethereachconnectorhasbeenconnectedcorrectly:
Check1 MakesuretheACadaptorandACpowercordhavebeenfirmlyplugged
intotheDCINsocketandwalloutlet,respectively.Whentheyhavebeen
connectedcorrectly,performCheck2.
Check2 ConnectanewACadaptorandACpowercord.
•IftheDCINLEDdoesnotgoon,gotoProcedure3.
•IfthebatteryLEDdoesnotgoon,performCheck3.
Check3 Makesurethebatterypackhasbeencorrectlyinstalledinthecomputer.If
thebatteryLEDdoesnotgoonwhilethebatterypackhasbeeninstalled
correctly,gotoProcedure3.
Procedure3ReplacementCheck
Thesystemboard,powersupplyboard,orCPUmaybefaulty.Disassemblethecomputer
accordingtoChapter4andfollowthestepsbelow:
Check1 Replacethepowersupplyboardwithanewone.Ifthebatterypackisstill
notworkingproperly,performCheck2.
Check2 Replacethesystemboardwithanewone.Ifthebatterypackisstillnot
workingproperly,performCheck3.
Check3 ReplacetheCPUwithanewone.