Specifications
Device Failure
I Code and Error
I
2 Alarm
(contd)
3
Parity
6-2
Significance/ Action
Line printer: paper out, paper
tear,
fuse alarm, or interlock open.
Cor-
rect
the problem and use
the
RP
option.
1729-2
Card
Reader: interlock open.
Correct
the problem and
take
the
RP
option.
1728-430 Card Reader: interlock
open or chip box full.
Correct
the
problem and
take
the RP option.
1726-405 Card Reader:
If
the
output
stacker
is full,
clear
the output
stacker
and type RP.
If
a
card
jam
has occurred, abort the operation and
correct
the
problem.
If
there
is a
failure
to
feed,
attempt
to
ready the
device and
take
the RP option.
1829-30/60 Card Reader (diagnostic
for logic unit only): bad
continuator
status
1832-5
Cassette
Tape: runaway
tape
1833-5 Flexible Disk Drive:
continuator
pseudo
status
bad
COSY
driver: The first record is not
a
CSY
/ control record.
Magnetic
tape
simulator: failure
to
fulfill request due
to
mass
storage
device
error
Pseudo tape: Failure
to
fulfill
re-
quest due
to
mass
storage
device
failure.
1711/1713 Teletypewriter:
Attempt
recovery by retyping
the
command
1713
Paper
Tape Reader: Manually
position
the
paper tape so
that
the
end of
the
next
to
last
record and
the
beginning of the
last
record
are
on
opposite sides of
the
photo cells.
Repeat
the read request
by
typing RP
in response
to
the
error
message.
Magnetic tape: The
tape
is posi-
tioned
after
the bad record. Either
tape
the
control unit option
to
con-
tinue processing (the bad record is
ignored) or
abort
the
operation.
COSY
driver: The
last
record was
not an END/record.
COSY
deck must
have END/record added.
Magnetic tape simulator: illegal
record
header or header not found
Device Failure
Code and Error
4 Checksum
5 Internal
reject
6 External
reject
Significance/ Action
FREAD binary: The sum of the
header word and
data
in a record did
not balance to
zero
when added to
the checksum word.
Card readers: The holes
are
not
cleanly punched. Check cards for
tears
between holes. If
the
cards
are
all right,
attempt
recovery.
Other-
wise, perform the following opera-
tions:
1.
Remove
the
cards
from the input
hopper.
2.
For 1728-430/1729-2/1729-3
only, single cycle
the
card
in
the
transport
area
to the output
stacker.
3.
Take the
last
two cards
in
the
output hopper and put them into
the
input hopper ahead of the
unread cards; with a multicard
record,
re-read
all cards within
the
record.
4.
For 1726-405 only, press
the
RE-
LOAD
memory switch.
5.
Ready
the
card
reader.
6.
Take
the
RP option.
1833-5 Flexible Disk Drive:
status
faults
after
input/output
COSY
driver:
There
was
no
end-of-
file mark following the END/record.
The computer cannot communicate
with
the
device. Check the hardware
address switch and
POWER
ON
switch. The RP option may be used if
the problem has been
corrected.
COSY
driver: Read
on
the
write unit
or write
on
read
before
the
end-of-
deck marker is encountered.
The input/output device has replied
to
the
computer
that
it
is not ready
to
perform the specified request.
The device
is
busy or not ready.
If
the device is not busy, check the
ready switch.
Attempt
to continue
by typing RP.
COSY
driver: The motion request is
on
the
read unit
after
the
CSY
/record
and before the end-of-deck marker.
96769450 B
I