Radio Shack TRS-80

READY
>-
returns
and
the
motor stops,
your
program is
recorded on
tape.
It is also
still in the
Computer's
memory. It has
only been
"copied" out.
7.
Disconnect
the
small
plug
from the
Recorder's
REM jack
and
Rewind the
tape. Dis-
connect the
black plug
from the EAR Jack
and
Play the
tape
so you hear
what
digital
data
sounds
like.
Sounds
terrible,
doesn't
it? You
were
expecting
maybe
Lawrence
Welk?
Loading
Reversing
the
process
and loading
(copying)
the
program
from
tape
into the
Computer
is
just as
easy.
1.
Be
sure
the tape
is
fully
rewound
and
the plugs
are
all in
place.
2.
Push
down
the
PLAY
button
until
it
locks.
Set
the Volume
control
to about
7-8.
3.
Type
NEW
(to
clear out
any
existing
program).
4.
Type
the
command
CLOAD
The
Tape
Recorder's
motor
will start
and data
will flow
from
the tape
into the
Com-
puter's
memory at
the
rate of
about
1200
bytes
per
minute.
As
soon
as
the
Computer
senses
the
data,
it
will flash a
* on
the screen;
then as
it
accepts
each
line of data,
a
second
*
will flash
on
and
off.
Watch the
Video
Display.
The
program
is
entered
when
READY
>-
returns
and the
recorder
motor
stops.
4. RUN
the
program to
see that
the data
transfer
was
successful. In
the rare
event that
it
was not,
repeat
the
above
steps,
being
sure
that
all cables
are
properly
connected, the
Volume is
set to
7-8
and
the
tape
recorder
heads
are clean.
{Listen to
the
tape
to be
sure there
was a
program on
it.)
Miscellaneous
Tape
Palaver
To
minimize the
chance
of
hitting a
"soft spot"
on a
tape,
where
the
oxide
may
be thin
or
have flaked
off,
experienced
operators
routinely
do a
"double
dump"
when
copying
from
42
IMPORTANT:
Too
little
volume wffi
cause a
bad
:
'v'
:
"data
dump":
too much
volume may
result
in
:
..
.
%
distortion
in
the Tape
Recorder and
also
goof-up
.^\tfae
;
"d«J]ip"
::.;.:.::-:
•
....-...
...:•..:•;
]}""'
CLfJAB
stands
for
"Load^ron* Cassette*
The*
^display
^seeondone
flashing)
is
a fool-
/
proof
indication
that data
is being loaded
onto-the
ftOTE:
If flue recorder
does
not -slap-,
reach around
the
back
of
the
Computer,
opfeir
the
door
at the
left rear
and
press
the
Reset
butfem
inMde^This
will
take
the
-QofHputer mt
of
the
CLGAD
or
6gAV*E
:
mode
and
return
control
to
the
keyboard.