Sharp FDD-412A Service Manual page 89

FDD412A/B
READ ERROR
Retry read/
write operation .
Disk efror YES
Occur inter=>-(B)
mittently?
on the same
track,
7
NO
Copy data
from error
disk to
another disk
and initial-
ize error
Read error
NO ; a
6ccur inter-
mittently.?
Continue
job exe-
cution.
Set another
disk and try
read/write
operation.
Disk is
defec- _
<Ctracks 3
or more?
Errors
Error NO
eccurred?
FDD error is
suspected.
track none?
Copy data
from error
tracks and
make another
initializa-
tion.
tion.
See 5.2
"Media-Related
Trouble" and
continue
troubleshoot-—
ing.
magnet) is
L[suspected.
Fig. 5.6 Read Error (1)