Self-Test
5
Next,
the
keypad
is
checked
in
an interactive
test
called
"SELF
5”.
"SELF
5”
is
displayed
briefly
on
the screen, and
then
replaced with
“O”.
This
is a
request
for
you
to
press the
O
key
on
the
MicroLab
|
keypad.
As
soon
as
you
press
O,
the
display
will
change
to
“1”.
The display
will
increment
through the entire
hexadecimal
portion
of
the
keypad
in
this
fashion.
As each
character
is
displayed,
press the
corresponding
key.
After
the
hexadecimal portion
of
the
keypad
has been tested,
you
are
requested
to
press the
outer
ring of
control
keys.
The following displays
will
require
the
following
key
presses:
dEC
=
DEC
LAd
=
LOAD
ADDRESS
SHIF
=
SHIFT
AU
=
AUTO
Inc
=
INC
LdA
=
LOAD DATA
Go
=
GO
Following
the
“SELF
5”
test,
the
MicroLab
|
begins
the
port
tests.
Self-Test 6
"SELF
6”
is
the
RS-232-C
port
test.
If
the
ports
haven't
been
wrapped
to
one another,
the
display
will
show
“nO
dCd”.
This
means
a
data carrier detect signal wasn’t
detected.
If
the ports
have
been wrapped to one another,
but
are
not
set
at
the
same
baud
rate,
an
error
will
occur.
If
the
ports
pass
the
test, the
MicroLab
|
will
go on
tothe
next
test.
Self-Test
7
The
cassette
port
test
requires that the
port be
wrapped
around
to
itself.
If
the
port
isn’t
wrapped
around,
the
display
will
show
“SELF
7”,
then
"Error
S7”.
After indicating
the
error,
the
MicroLab
|
hold
the
display until any
command
key
is
pressed.
If
no
errors
were
detected,
the
display
will
show
"rEAdY”.
Error
Codes
The
remainder
of
this section
is
devoted to
the
error codes
you might
see
while
using
the
MicroLab
I.
Each error code
is
listed, along with
a
short explanation
of
what the
code
means.
Operator
Familiarization—MicroLab
|
Instruction
EO
An
attempt
to
write
to
the
memory location specified
has
failed. This
error
might be
encountered when
using
either the
LOAD DATA
or
AUTO
functions.
—1
An
attempt has been
made
to
write
to
a
reserved
memory
space.
Make
sure you're
writing to
MicroLab!
RAM
space
and not system monitor
space.
This error might be
encountered
when
using
either the
LOAD
DATA
or
AUTO
functions.
01
You've tried to
relocate
a
1K-byte
segment
of
RAM
into
the
memory
space reserved
for
the
MicroLab
|
monitor.
The following
error
codes might be
encountered
while
performing a
Self-test.
SO
The MicroLab! monitor
PROM
failed
the
low-order
checksum
test
during
Self-test
0.
$1
The MicroLab
|
monitor
PROM
failed
the
high-order
checksum
test
during
Self-test
1.
$2
The MicroLab
|
RAM
failed
a
read/write
test
during
Self-test
2.
$3
The
MicroLab
|
failed
to
sucessfully
relocate
a 1K-
byte
segment
of
RAM
during
Self-test
3.
$5
This
error
code can
mean
one
of
two
things:
during
Self-test
5
you
pressed
a
key
out
of
sequence,
or
the
keypad
decoder
hasfailed.
S6
This
error indicates
that either the
RS-232-C
ports
weren't
wrapped
around
to one another,
or
that
a
line
has
failed within
one
of
the
ports.
S7_
This
error indicates that either the cassette
port
wasn’t wrapped
around
to
itself,
or
the
port
has
failed.
The following
error
codes
may
be
encountered
while
performing a
cassette
port
tape
load.
Ax
This
error
indicates
a
tape
read
error.
The
x
portion
of
the error
code represents
the
high nibble
of
the
ACIA
status
register, and
should
be
interpreted
in
the
following
manner:
x
=
1
—
framing
error
2
—
data
overrun
=
3
—
parity
error
BO
This
error
indicates
a
non-ASCII
hexadecimal
character has been
read.
C8
The
file
has
failed
a
file
header
checksum
validation.
2-13
Summary of Contents for 067-0892-00
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