Radio Shack CTR-80A Hardware Manual page 5

Computer cassette recorder. micro computer system
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BATTERY
CONDITION:
The
BATTERY.RECORD
LED
indicates the
condition
of
the
batteries.
Wnen
you
press the
PLAY
button,
if
the
LED
lights
rightly,
the
batteries
arc
OK;
if it
docs
-10I
light
(or
lights
on
y
dimly),
it
ia
time
*or
new
batteries.
We
recommend
Radio
Shack
Catalog
Number
23-561
or
23-551.
DC
6V JACK: you
can
conserve
battery
power by
using
an
external
source
o<
6
volte
DC
connected
to
this
jack.
OPERATION WITH THE
TRS-80
For saving
your
own
programs
and
data,
we recommend
you use Radio
Shack
C
20
Certified
Caeeettoc {2S-3Q1
}.
These
oacsertec ore fesdorieco
(tho
entire
tape
can
store information)
and
individually
Jested
for
reliability.
For recording
your
own
programs and
data,
it's
important
to
start
with
a blank
tape.
Unless
the tape
is
new.
you
should erase
the
tape before saving
new
information
on
it.
Radio
Shack
sells
a
bulk eraser (Catalog
Number
44-210)
that
doee
the job quickly
and
effectively.
INSERTING
THE CASSETTE
Press
Hit
STOP
k«y.
ciien
pitisi
EJECT
lo
open
ilw casseiie
cumpadnieiil.
Mold
the cassette
with tne
side
to
be
played
or
recorded
up and
the
open
tape
side
toward
you.
Close
the
lid.
Press
REWIND
and
let
the
cassette
rewind
all
the
way
to the
beginning.
When
the tape
has
slopped, press
STOP
again
to
turn
off
the drive
moior.
To
iHiiK-ivw
Hit!
CassbBlle, prtfes
STOP,
IIibi'i
EJECT
To
play
ui recurcl
on
Ihe
other
side, turn
the
cassette over
so
the other
label
side
is
up and
the
tape
opening
is
still
toward you.
Re-insert the cassette
amd
close
the
lid.
J.OADING
A
PROGRAM
OR DATA
FILE
FROM TAPE
Pi.
Set the
volume
lo
the correct
level
for
your
computer
<see
the
computer
owner's
manual
for details).
If
you have
trouble loading
programs
or
inputting data,
try
adjusting the
volume.
2.
De
sure 1he tape
is
positioned
to just
before the
start
of the
recorded
program
or data. Usually,
this
means
the
tape should
be rewound
all
the
way
(or
positioned using the counter,
as explained
in
the
Note
later
on),
3.
Betore
the
computer
is
ready
to
load the
program
or input the data,
press
PLAY
on
the recorder.
The computer
will
control the
tape motion. While
the
computer
is
actually receiving
data
from
the recorder, ihe
LED
will
de
lit.
4.
When
the
computer has completed
the
tape
operation,
press
STOP.
SAVING
A
PROGRAM OR
DATA
FILE
ON
TAPE
l.
Insert
a
blank
(new
or bulk-erased)
taps,
and
rewind
it
to
the
beginning
of
the
tape
(if
using lape
with
a
leader,
be
sure
to
advance
fi
past the leader
to
trie
beginning
of the
recording
lape).

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