The controller displays one of the following messages when an error occurs during a diagnostics procedure:

Address mark not found

Attachment failed to respond

Bad ECC on disk read

Bad sector flag detected

Controller has failed

Drive activity failed

ECC corrected data error

Requested sector not found

Reset failed

Seek operation failed

Write fault on selected drive

If you see one of these error messages, check the drive, controller, cables, and power connectors. If you still get an error, contact your dealer.

Floppy Disk Diagnostics

Floppy disk diagnostic tests may be destructive or non- destructive. Destructive diagnostics destroy data on the diskette, but non-destructive diagnostics do not. The following table lists which tests are destructive and which are not.

Destructive tests

Nondestructive tests

 

 

Format

Drive speed

Random R(ead)/W( rite)

Drive change line

Sequential R(ead)/W(rite)

 

 

 

C-20 Performing System Diagnostics