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 Troubleshooting
Replace 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

Figure 2-5 External USB device troubleshooting process