2.5  3.5” FDD Troubleshooting  2  Troubleshooting Procedures 
Satellite A50S/TECRA A3X  Maintenance Manual (960-534)            [CONFIDENTIAL]  2-29 
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2.5  3.5” FDD Troubleshooting 
This section describes how to determine if the 3.5” FDD is functioning properly. Perform 
the steps below starting with Procedure 1 and continuing with the other procedures as 
required. 
Procedure 1:  FDD Head Cleaning Check 
Procedure 2:  Diagnostic Test Program Execution Check 
Procedure 3:  Connector Check and Replacement Check 
Procedure 1  FDD Head Cleaning Check 
FDD head cleaning is one option available in the Diagnostic Program.  
Insert the Diagnostics Disk in the external floppy disk drive, turn on the computer and run 
the test. And then clean the FDD heads using the cleaning kit. If the FDD still does not 
function properly after cleaning, go to Procedure 2. 
Detailed operation is given in Chapter 3, Tests and Diagnostics. 
If the test program cannot be executed on the computer, go to Procedure 3.