Toshiba l500d Manual

A SERVICE OF

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2TroubleshootingProcedures

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SatelliteL500D/ProL500DMaintenanceManual

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Todetermineifthecomputer’sexternalUSBdevicesarefunctioningproperly,performthe

followingprocedures.Figure2-6outlinestheprocess.StartwithProcedure1andcontinueas

instructed.

Procedure1: Externaldeviceandconnectioncheck

Procedure2: Replacesystemboard

Procedure1 Externaldeviceandconnectioncheck

TheUSBdevicemaybedamagedortheconnectionmaybefaulty.PerformCheck1.

Check1 MakesureUSBdevicecableisfirmlypluggedintooneoftheUSBsockets.Ifthe

cableisconnectedcorrectly,gotoCheck2.

Check2 PlugtheUSBdeviceintoanotherUSBsocket(therearethreeinall).IftheUSB

devicestilldoesnotwork,gotoCheck4.

IfthedevicefunctionscorrectlywhenconnectedtoanotherUSBport,goto

Check3.

Check3 MakesurethattheUSBsocketisfirmlysecuredtothesystemboardofthe

computer.Ifthemalfunctionremains,thesystemboardorUSBsmallboardmay

bedamaged.GotoProcedure2.

Check4 ConnectanalternativeUSBdevicetooneofthecomputer’sUSBports,andthen

bootthecomputer.Thecomputerautomaticallydetectstheexternaldevice.

IfthealternativeUSBdeviceworkscorrectly,theoriginaldevicemaybe

damagedandshouldbereplaced.

IfthealternativeUSBdeviceappearstohavethesameproblemastheoriginal

device,thesystemboardorUSBsmallboardmaybedamaged.GotoProcedure

2.

Procedure2 Replacesystemboard

Iftheerrorpersists,thesystemboardorUSBsmallboardmaybedamaged.Replaceitwitha

newonefollowingtheinstructionsinChapter4.

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