Operator
Familiarization—MicroLab
|
Instruction
Be
sure
not to
touch
the tape surface
while handling
the
cassette, and
don’t
store the
cassette
around
electrical
equipment
that
radiates
a
high
magnetic
field
(such
as
a
television
set).
The
tape
you buy
should
be the
kind
called
“leaderless
tape”.
Most commercial
cassette
tapes
have
a
mylar
leader
about
six
inches
long.
If
you
don’t
use
leaderless tape,
make
sure
the
first
file
you
store
does not
begin on
the
leader.
Leave
several
seconds
of
space
between
the
files
you
store.
This allows
you
to easily
tell
where one
file
stops and
another
starts.
In
this
way, you
can
listen
to
the
tape
at
fast
forward,
and
stop
at
the
file
you
want
to recover.
Using
the
MicroLab
|
Cassette
Tape
Storage
System
There are two audio
jacks
on the
left
side
of
the
MicroLab
|
(see
Fig.
2-2). On
the bottom
of
the
MicroLab
|,
you'll
find
a
plate
which
tells
which of
the
jacks
is
used
for input,
and
which
is
used
for
output.
As
shown
in
Fig.
2-2,
the leftmost
jack
receives
data
from
the
cassette
recorder.
The
rightmost
jack
outputs data
to the recorder.
2827-4
Fig.
2-2.
The MicroLab
|
Cassette
Port.
The
Cassette
Port
allows
you to
store programs
on
cassette tape.
The
lid
of
the
MicroLab
|
contains two audio
cables that
terminate
in
audio
plugs.
Connect
one
cable to the
OUT
jack
on
the
MicroLab
|,
and the other cable to the
IN
jack.
26
The
free end
of
the
OUT
cable
goes
to the
cassette
record-
er's
earphone
jack.
The
free
end
of
the
IN
cable
connects
to
the recorder’s
AUX
input
jack.
NOTE
If
there
is
no
AUX
jack
on your recorder, the
microphone
input
jack
may be used; however, a
minor equipment
modification
is required. Refer
to Connecting
a Cassette
Recorder
in
Section
4
of
this manual,
for information.
Storing
Files
If
you're
storing files on
a
new
tape,
be
sure
to
position
the
tape so that
recording
doesn’t
start
on
the
leader.
If
the
file
is
to be stored on a
tape that
already
has
some
files
on
it,
be
sure
to
position
the
tape
after
the
last
file.
It
is
possible
to
store
a
new
file
over an
old
file.
When
you
have
the tape
recorder
connected
to
the
MicroLab| and
are ready
to
store
a
file,
perform the
following procedure.
1.
Press
(SHIFT)
TAPE
SAVE.
The
MicroLab
|
will
then
display
“FILE”. “FILE”
is
a
request
for
the
file
name.
2.
Enter
the
two
hexadecimal
digits
that represent
the
name
of
the
program
you
want
to
store.
Each
digit
will
be
shown
onthe display.
When
the
last
digit
is
entered,
the
display
will blank,
then
show
“SA”.
3. "SA"
stands
for
starting address.
Enter
the
beginning
hexadecimal
address
of
the routine
to
be
saved. When
the
last digit
is
entered, the
display
will blank
again,
then
show
"EA".
4.
When
"EA”
is
displayed,
the
MicroLab
|
is
asking
for
the
ending
address
of
the
program
you
want
to
store.
Enter
the
fouredigit
address.
5. At
this
point, you
must turn
on
the
tape
recorder.
The
next
thing
you
enter
will
be
the
“GA”
(go
address).
The
go
address
is
the
location to which
the current address
pointer
(CAP) will
be
set
following
the tape
load
routine. The
go
address should represent the
beginning
of
executable
code.
As
soon
as
this address
is
entered,
the MicroLab
will
begin feeding the
program to
the
recorder.
6.
Enter
the
four
digit "GA”
address.
As
soon
as
the
last
digit
is
entered there
will
be about
a
three
second
pause, and
then
the
MicroLab
|
will
begin sending the
file to
the
recorder.
As
each
address
is
sent
to
the
recorder,
the
MicroLab
|
will
show the address
and
its
contents
on
the
display.
7.
When
the
display
stops
incrementing,
the
program has
been
stored and
you
can
stop
the
recorder.
REV APR
1984
Summary of Contents for 067-0892-00
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