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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—
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