430 Series
2.5 Floppy Disk Drive Troubleshooting
This section describes how to determine if the 430 series internal or external 3.5-inch floppy
disk drive 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. Detailed operation is
given in Chapter 3, Tests and Diagnostics.
After Toshiba MS-DOS loads, run the Diagnostic Program and then clean the FDD heads
using the cleaning kit. If the FDD still does not function properly after cleaning, go to Proce-
dure 2.
If the test program cannot be executed on the 430 series, go to Procedure 3.
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