
2 Troubleshooting Procedures
Satellite L500 / Pro L500 Series Maintenance Manual 19
2.6 External USB Devices TroubleshootingReplace system board
(Procedure 2 )
END
Origina l U SB
device is faulty
Perform ex tern al d ev ice an d
connection check
(Procedure 1 )
START
Does th e d ev ic e fu n ctio n
when connected to a
different USB port?
Does an alternative USB
device function correctly?
No
Yes
No
Check USB
port
connection Yes