Routine
Number Description
E"or
Code
Meaning
TR47 Checks the read data line
to
determine
if
it
will go both 0947 All 1's or
O's
read from tape
-active and inactive. The program generates 10 read clocks control card.
on the tape cOhtrol card
and
reads
the data
associated
with
th~se
read clocks
..
There must be
at
least one 0 bit and one
t bit read
for
this test
to
pass. A stuck
bit
causes
all1's
or.
all
O's
to
be
'read.
TR051
1
Moves tape forward
for
two
seconds. 0970 BOT or
EaT
was found;
use
TR051 or TR052 routines
to
reposition the tape.
TR052
1
Moves tape backward
for
two
seconds.
TR06P,
Checks the beginning (BOT) and end
(EOn
of
tape status
0954 Neither BOT nor
EaT
status
indicators. The tape is moved past the single BOT holes and is active.
the double
BOT/EaT
holes.
If
the test fails, the tape stops immediately.
0957
EaT
status is
not
active.
0958
EaT
status cannot be
cleared.
0960 BOT status is
not
active.
0963
The load point hole (BOT
status) cannot be found (refer
to
229
for
load point hole).
0966
BOT status cannot be
CAUTION
cleared.
If
an
error occurs and the test is retried, the tape might 'go
off
the end
of
the reel.
TR73
2
Tests the tape speed
to
determine
if
the motor speed is 0973 Tape speed
not
close
to
40
correct. The program rewinds the tape
to
the first set
of
inches per second.
double holes and counts the time. When the load point hold
is found, the time is compared.
TR95 Remove the tape cartridge from the tape unit and attach a
0995 The data returned was
jumper between tape control card pin U06
(-write
enable) incorrect.
and pin U08 (gnd). Wraps data through the base
I/O
card
and tape control card.
0996
Indicates
that
TR95
ran
and
can
be rerun by pressing
EXECUTE.
'If
a
970
error
results
from
the
EOT
hole
t?eing
in
front of
the
tape
mirror,
manually
move
the
tape
to reposition
the
EOT
hole.
2Looping
on
this test
can
cause
a
process
check.
3-44
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