Toshiba PROL550 Laptop User Manual


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2TroubleshootingProcedures
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SatelliteL550/ProL550SeriesMaintenanceManual
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2.6ExternalUSBDevicesTroubleshooting
Replacesystem board
(Procedure2)
EN D
O riginalU SB
deviceisfaulty
Perform externaldeviceand
connectioncheck
(Procedure1)
STAR T
D oesthedevicefunction
w henconnectedtoa
differentU SBport?
D oesanalternativeU SB
devicefunctioncorrectly?
CheckU SB
port
connection
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