
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.4 Cleaning and Handling
– 54 –
(4) Troubleshooting
FLD error
Is the floppy disk
correctly mounted?
Correctly mount the
floppy disk.
Has an FLD error
occurred?
The floppy disk is
defective.
Was the floppy disk
drive used at below
freezing temperatures?
Carry out warming operation until the
internal temperature rises.
Has an FLD error
occurred?
The track has deviated
due to the temperature.
Has an FLD error
occurred?
Clean the floppy disk
drive head.
Has an FLD error
occurred?
The floppy disk is
defective.
Replace the floppy disk
with the backup copy.
The error was caused by
head contamination.
The floppy disk drive
is defective.
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES