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Commodore 1581 - Troubleshooting Guide

Commodore 1581
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1581
SOFT
ERROR
TEST
VERSION
1.5.1
MODIFIED
SOFT
ERROR
TEST
OPTION
TWO
-
BLINK/RESET
LED
AT
TEST
END
This
option
allows
setting
of
the
Drive
LED
Status
at
Test
End
*
Press
(B)
-
Blink
LED
at
Test
End
*
Press
(R)
-
Reset
LED
at
Test
End
SOFT
ERROR
TEST
OPTION
FIVE
-
READ
TEST
RESULTS
This
option
reads
and
displays
the
results
of
the
Soft
Error
Test.
These
results
are
stored
on
the
Test
Diskette
and
updated
at
the
end
of
each
Completed
Pass.
Complete
Error
Reporting
along
with
Pass/Fail
Status
are
displayed
as
follows
....
+ +
IF
A
PRINTER
IS
CONNECTED,
THE
TEST
RESULTS
WILL
BE
PRINTED
TO
HARD
COPY
--
THIS
PRINTOUT
SHOULD
BE
RETURNED
TO
THE
CUSTOMER
WITH
THE
UNIT
TO
SHOW
THE
RESULTS
OF
FINAL
TESTING
+
a
es
ees
SOFT
ERROR
TEST
RESULT
SUMMARY
1.
NUMBER
OF
PASSES
The
Total
Number
of
Passes
run.
*
All
Tracks
on
the
Diskette
are
Tested
Each Pass
*
Minimum
Number
of
Passes
=
One
Complete
Pass
2.
COUNTABLE
ERRORS
The
Total
Number
of
encountered
errors
that
required
more
than
one
(1)
retry
to
recover.
*
Countable
Errors
=
Total
Errors
minus
Recovered
Errors
*
Maximum
Countable
Errors
=
Total
Passes
divided
by
a
Set
Value
3.
TOTAL
ERRORS
The
Total
Number
of
Errors
encountered
during
the
test.
*
This
Count
is
Incriminated
Only
Once
for
each
error
regardless
of
the
Number
Of
Retries
Necessary
to
Recover
the
Error.
*
If
this
Count
Reaches
(1024),
the
Test
Will
Terminate
*
Maximum
Errors
=
Total
Passes
divided
by
a
Set
Value
4.
PASS/ERROR
RATIO
The
Number
of
Passes
versus
the
Number
of
Encountered
Errors
*
Pass/Error
Ratio
=
Number
of
Passes
divided
by
Countable
Errors
*
Minimum
Pass/Error
Ratio
=
Number
of
Passes
divided
by
a
Set
Value
5.
FIRST
PASS
RETRIES
The
Total
Number
of
retries
that
were
successful
*
This
Value
is
a
Measure
of
Diskette
Quality
as
it
will
show
how
many
Persistent
Errors
were
Encountered
*
If
this
Value
Reaches
Five
(5),
a
Defective
Diskette
is
indicated
and the
test
will
terminate
*
First
Pass
Retries
are
Determined
for
the
First
Pass
Only
First
Pass
Retries
=
Number
of
Retries
minus
First
Retries
Page
1-9

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