2.6 External USB Devices Troubleshooting 2 Troubleshooting Procedures
Satellite M40X/M45X/Satellite Pro M40X/EQUIUM M40X Series Maintenance Manual [CONFIDENTIAL] 2-17
2.6 External USB Devices TroubleshootingReplace system board
(Procedure 2)
END
Original USB
device is faulty
Perform external device and
connection check
(Procedure 1)
START
Does the device function
when connected to a
different USB port?
Does an alternative USB
device function correctly?
No
Yes
No
Check USB port
connection Yes