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2.5 USB FDD Troubleshooting 2 Troubleshooting Procedures
PORTEGE A200 Maintenance Manual (960-499) 2-29
Procedure 2 Diagnostic Test Program Execution Check
Insert the Diagnostics Disk in the FDD of the computer, turn on the computer and run the test.
Refer to Chapter 3, Tests and Diagnostics, for more information about the diagnostics test
Make sure the floppy disk is formatted correctly and that the write protect tab is disabled.
Floppy disk drive test error codes and their status names are listed in Table 2-6. If any other
errors occur while executing the FDD diagnostics test, go to Check 1.
Table 2-6 FDD error code and status
01h Bad command
02h Address mark not found
03h Write protected
04h Record not found
06h Media replaced
08h DMA overrun error
09h DMA boundary error
10h CRC error
20h FDC error
40h Seek error
60h FDD not drive
80h Time out error (Not ready)
EEh Write buffer error
Check 1 If the following message is displayed, disable the write protect tab on the floppy
disk by sliding the write protect tab to “write enable”. If any other message appears,
perform Check 2.
Check 2 Make sure the floppy disk is formatted correctly. If it is, go to Procedure 3.