Toshiba A40 manual Troubleshooting Procedures FDD Troubleshooting, FDD error code and status

2 Troubleshooting Procedures 2.5 FDD Troubleshooting

Procedure 2 Diagnostic Test Program Execution Check

Insert the Diagnostics Disk in the FDD, turn on the computer and run the test. Refer to Chapter 3, Tests and Diagnostics, for more information about the diagnostics test procedures.

Floppy disk drive test error codes and their status names are listed in Table 2-6. Make sure the floppy disk is formatted correctly and that the write protect tab is disabled. If any other errors occur while executing the FDD diagnostics test, go to Check 1.

	Table 2-6 FDD error code and status
Code		Status
01h		Bad command
02h		Address mark not found
03h		Write protected
04h		Record not found
06h		Media removed
08h		DMA overrun error
09h		DMA boundary error
10h		CRC error
20h		FDC error
40h		Seek error
60h		No FDD
80h		Time out error (Not ready)
EEh		Write buffer error

Check 1 If the following message displays, release the write protect tab on the floppy disk. If any other message appears, perform Check 2.

FDD-Write protected

Check 2 Make sure the floppy disk is formatted correctly. If it is, go to Procedure 3.

2-36 Satellite A40 Maintenance Manual (960-458)