Toshiba T4500 User Manual page 42

Procedure 3 Diagnostic Test Program Execution Check
The floppy disk drive diagnostic test program is stored on the ASP Diagnostics Diskette. After
loading Toshiba MS-DOS, run the diagnostic program. Refer to Chapter 3, Tests and Diagnostics,
for more information about the diagnostic test procedures.
Floppy disk drive test error codes and their status names are described in Table 2-3. Make sure the
floppy disk in the FDD 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.
Check 1: If the following message is displayed, disable the write protect tab on the floppy disk.
If any other message appears, perform Check 2.
2-18
Table 2-4 Floppy Disk Drive Error Code and Status
Code Status
01h Bad command
02h Address mark not found
03h Write protected
04h Record not found
06h Media removed on dual attach card
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
FFh Data compare error
Write protected