2 Troubleshooting Procedures 2.5 USB FDD Troubleshooting
Procedure 3 Connector Check and Replacement Check
The USB FDD is connected to the System Board via USB port.
Check 1 Make sure the USB cable of the FDD is securely connected to the USB port.
Check 1 Make sure USB FDD is firmly connected to USB port. If the connection is loose,
connect firmly and repeat Procedure 2. If the problem still occurs, go to Check 2.
NOTE: When checking the connection, be sure to check it with care for the followings.
1. Cable can not be disconnected from the connector.
2. Cable is connected straight to the connector.
3. Cable is connected all the way seated in the connector.
4. Cable can not be broken.
Check 2 USB FDD may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
Check 3 System board may be faulty. Replace it with a new one following the steps in
Chapter 4 Replacement Procedures.
PORTEGE M300 Maintenance Manual (960-504) 2-33