Routine Expected Error
C
Number Description Information
Code
Meaning
BT48 Peak
Shift
Test on Track 0 - This xxxx
to
XXXX The data returned is the even average
test is similar
to
BT47 but writes
(4-digit
decimal and odd average bit time
for
track 0
an
alternating pattern
of
O's
and number computed
to
in microseconds (see BT34).
1's. The permissible difference
of
two
decimal places)
the
O's
and
1's
can be a maximum
C'
of
8 microseconds.
BT51
Erase Coils Open Test 0000
No
errors.
0808 Status
bit
5 is on
after
an
F reset
instruction.
f
0809 Status
bit
5 is on after a hex
F7
control instruction command (erase
channel 0).
0810
Status bit 5 is on after a hex
FB
control instruction command (erase
channel 0). Status bit 5 indicates
LED
and erase coils OK.
TR01
Select Subdevice Test - This test 0000 No errors.
is used in
MAP
891
(auxiliary tape).
It
is
not
used
for
MAP
860. This
test must be run before
891
is run
on auxiliary tape. This test must
also be run
if
the operator ever
If
returns
to
the DCP2 menu during
MAP
891. The
first
time this test
is run
it
asks you
to
enter the
subdevice address
with
minimal
error checking; therefore,
891
can
be run on any tape subdevice.
0901 F reset failure on a
get
microinstruction. The status was
other than
FF
after
an
F reset
instruction.
0903
Subdevice select failure. The
expected status
bit
was not active.
(--
0906 Improper response
from
the selected
subdevice. The expected subdevice
response status
was
not
active.
(
Diagnostic Program Routines 3-51
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