Sharp FDD-412A - Page 101

FDD412A/B
Table 5.7 (3)
Error Sympyom
Typical Failure Probable Cause
Remedy
6 |The center hole is 1. The product quality |1. Read error or
oval. is defective; this write error.
\ defect was left un- +
noticed upon deliv- |1. Consult the floppy
| | Center hole
ae, ery. disk manufacturer.
bs Replace or discard
a © ;
| the disk.
etl
U
fe - : xen be
[1 | There are fluffy burrs ji. The product quality |1. Read/write error
‘on the oxide-coated is defective; the or seek error.
surface. . burrs were present
upon delivery or il. Same as remedy I-6.
appeared during use.
2 ;Both ends at jacket 1. The disk was mountedj1. Read error or
‘bottom are bit off. { on the FDD 1500 to write error.
i ° 2000 times and
reached the end of
service life.
(IL) Jacket
{2. Inadequate feeding
or jamming by
| .auto-loader.
2. The disk was roughly
mounted on and dis- |1. Discard.
mounted from the
FDD.
2. Insert the disk
gently into the
FDD.
3. Divert to work
disks the program
disks frequently
used.
~95—