Toshiba Satellite A40 Maintenance Manual page 96

2.5 FDD Troubleshooting
Procedure 3 Connector Check and Replacement Check
The 3.5inch FDD is connected to the System Board via USB port.
Check 1 Make sure the USB cable is securely connected to the FDD. Also, make sure the
USB cable of the FDD is securely connected to the connector PJ4600 or PJ4601
on the system board.
If any of the connections are loose, reconnect firmly and repeat Procedure 2.
If any connector is damaged, replace it with a new one and repeat Procedure 2.
If there is still an error, go to Check 2.
Check 2 The FDD cable may be defective or damaged. Replace it with a new one. If the
FDD is still not functioning properly, perform Check 3.
Check 3 Replace the System board with a new one following the steps in Chapter 4,
Replacement Procedures.
Satellite A40 Maintenance Manual (960-458)
2 Troubleshooting Procedures
2-37