Sharp FDD-412A - Page 103

FDD412A/B
Table 5.7. (5)
Error Symptom
Group
Typical
Failure
|
Probable
Cause
{ Remedy
H 1. e .
1
|Error
due
to
read
1.
The
write
head
is
1.
Read
error
or
position
displacement
displaced.
write
error.
1
If
ID
parts
cannot
[
|
:
mmnot
—/
1.
Check
the
read
;
;
be
read,
the
initi-
;
;
ee
hs
ead
i
;
;
device
or
write
foo} og alized device is :
a
ae
|
s
device.
. responsible.
Zz If data parts cannot;2. Consult the floppy
=
be
read,
the
entry
disk
manufacturer.
Se
|
device
is
respon-
Replace
the
disk
=
sible.
or
make
another
= t initialization.
= 2. The read head is
|
displaced.
3.
Perform
checks
| Data part H a before making
i
{
.
*
:
.
.
|
;3-
Im
a
rare
case,
the
initialization.
product quality is
a
|
defective.
Cy anne a
G
2\Error
due
to
write/
1.
Data
cannot
be
writ-j1l.
Read/write
error
wt
read
function
|
ten
or
read
out
or
seek
error.
:
failure
|
properly
due
to
an
=
=--———-————
a
|
FDD
failure.
rl.
Check
the
FDD.
2
|
.
a
;
|
|2.
The
cover
was
opened|2.
Handle
the
FDD
=
or
a
head
load-off
|
cover
with
care.
mam | was effected during
|
=
‘
fo
a
write
operation.
Be
a,
i
at
3/Error
by
demagnetiza-
1.
Correctly
recorded
j1.
Read
error
or
|
tion
data
was
destroyed
write
error.
by a magnet (e.g., (Remedied by
ed
Demagnetized
|
magnet
ring)
that
initialization
or
aa
part
came
in
contact.
write
operation)
i
v4
DF
:
{| FF aang . In a rare case, an Avie ea
hoot
eer:
1.
Perform
initializa-
‘ae FDD failure is : ;
i
‘
tion
or
rewrite
responsible for :
'
:
operation.
!
this
error.
ae i 2. Check the FDD.
ire) = ae Ee
r |
'4
(/Erxor
due
to
faulty
{1.
The
write
format
is
/1.
Read/write
error
lwrite
format
not
as
required
(in-
or
format
error.
|
compatibility
with
other manufacturers'|1. Perform initializa-
devices). tion, or check the
data format of the
write device.