2.5 USB FDD Troubleshooting

2 Troubleshooting Procedures

Procedure 2 Diagnostic Test Program Execution Check

Insert the Diagnostics Disk in the USB 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 2-7. 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 2-7 FDD error code and status

 

 

 

Code

 

Status

 

 

 

01h

 

Bad command error

 

 

 

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

 

Not drive error

 

 

 

80h

 

Time out error

 

 

 

EEh

 

Write buffer error

 

 

 

FFh

 

Data compare error

 

 

 

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

Write protected

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

TECRA S3 Maintenance Manual (960-532)

[CONFIDENTIAL]

2-39

Page 81
Image 81
Toshiba S4 manual USB FDD Troubleshooting Troubleshooting Procedures, Procedure 2 Diagnostic Test Program Execution Check