LIMITED
WARRANTY
For
a
period of
90 days
from the date
of delivery, Radio Shack
war-
rants
to the
original
purchaser
that
the
computer hardware
described
herein shall be free
from
defects in
material
and
workmanship
under
normal
use
and service.
This warranty
is only applicable to
purchases
from
Radio Shack
company-owned
retail
outlets and
through
duly
authorized franchisees and
dealers.
The warranty
shall
be void
if
this
unit's case or cabinet is opened or
if
the unit is altered or
modified.
During this period, if a defect
should occur,
the
product must
be re-
turned
to
a
Radio
Shack store
or
dealer
for repair,
and
proof
of pur-
chase
must
be presented. Purchaser's
sofe
and exclusive remedy
in the
event
of
defect
is
expressly limited to
the
correction
of the
defect by
adjustment, repair or replacement at
Radio
Shack's election
ar\ti sole
expense, except there shall be
no obligation
to replace or
repair
items
which
by
their nature are
expendable.
No
representation
or other affir-
mation of
fact,
including,
but
not limited to,
statements
regarding
capacity,
suitability for
use, or
performance
of
the
equipment, shall
be or be deemedtobe a warranty
or
representation by
Radio
Shack,
for
any purpose, nor give rise to
any liability or
obligation
of
Radio
Shack whatsoever.
EXCEPT
AS
SPECIFICALLY
PROVIDED
IN
THIS AGREEMENT,
THERE ARE
NO
OTHER
WARRANTIES,
EXPRESS
OR IMPLIED,
INCLUDING, BUT
NOT
LIMITED TO,
ANY
IMPLIED
WARRAN
TIES
OF
MERCHANTABILITY
OR
FITNESS
FOR
A
PARTICULAR
PURPOSE
AND
IN
NO
EVENT
SHALL*
RADIO
SHACK
BE
LIABLE
FOR
LOSS OF PROFITS OR
BENEFITS,
INDIRECT,
SPECIAL,
CONSEQUENTIAL OR OTHER
SIMILAR
DAMAGES
ARISING
OUT
OF ANY BREACH
OF
THIS
WARRANTY
OR
OTHERWISE.
:
RADIO SHACK
a
A
DIVISION
OF
TANDY
CORPORATION
U.S.A.: FORT WORTH,
TEXAS
76102
CANADA:
BARBIE,
ONTARIO
L4M
4W5
TANDY
CORPORATION
AUSTRALIA
BELGIUM U.
K.
280-316
VICTORIA ROAD
RYUALMERE,
N.S.W.
2116
PARC INDUSTRIEL DE NANINNE
5140
NANINNE
BILSTON
ROAD
WEDNESBURY
WEST
MIDLANDS
WS10
7JN
T2A0
PRINTED
IN
HONG KONG
606-920
-
-
09
CTR-80A
Computer
Cassette
Recorder
r
Radio
/haek
TRS-80™
MICRO
COMPUTER
SYSTEM
L
Catalog
Number
26-1206
CUSTOM
MANUFACTURED
FOR
RADfO
SHACKWa
DIVISION
OF TANDY
CORPORATION
'
. :
:
The
CTR-80A is
specially designed
for
storing
your
TRS-80 programs
and
data.
It
can also
be used as a
high-quality
portable
recorder.
Special
features
include:
•
Simple
connection
to
TRS-80 cassette
jack (cable
supplied)
•
Allows
TRS-80
to
control
tape
motion
while
loading or
saving
programs
and
data.
•
Fast-forward
and rewind functions
are
independent
of
the
TRS-80
—
to let
you quickly
position
tape to
desired sections.
•
LED
indicator
lights
up
during input/output operations
(also)
during
fast-forward
and rewind.
• Adjustable
playback volume
to
suit
the
input requirements
of your
TRS-80
computer.
•
Built-in
Automatic
Level Control
(ALC)
assures correct
record
level
—
you
don't
have
to adjust
during
output to
cassette.
Additional
features
you'll appreciate
if
you
use
the unit
for
sound,
voice
or
music
recordings:
• Battery
operation
for convenient
portable use.
• Automatic
shut-off
at
end
of tape
during play or
record
—
saves wear
on
recorder,
batteries,
and tape.
• During
battery
operation, LED
indicator
shows
battery
condition.
WARNING:
TO
PREVENT
FIRE OR
SHOCK
HAZARD,
DO
NOT EXPOSE
THIS
APPLIANCE
TO
RAIN
OR
MOISTURE
CONTROLS
AND
CONNECTIONS
®
@
Figure
1.
Cassette
Unit
and Computer Cable.
1.
AC
Power.
Connect
AC
cord here.
2.
DC
6V
power. For
use with
auto
etc. Allows
connection
to 6V
DC
power
supply
(not
recommended
for
computer use).
3.
EARphone.
Output
from
tape
to computer.
Connect
black
mini
plug
(18)
on
computer
cable.
4.
Auxiliary
input.
Input
from
computer
to tape.
Connect
gray
mini
plug
(19)
on
computer
cable.
5.
REMote
control
and
Microphone.
Allows
computer
to
control
tape
motion
during
tape
input/output
(record/play).
Connect
gray
sub
mini
plug
(20)
to
REM
jack.
Other
jack
is
for
non-computer
use
with
a
remote
microphone.
Leave
empty
for
computer
use.
6.
VOLUME.
Controls
level
of
output from
tape
to
computer.
Use
the
level
recommended
in
your
Computer
Owner's
Manual.
7.
Cassette
compartment.
8.
Built-in
condenser
microphone.
For
sound/voice/music
recordings.
Microphone
is
disabled
when
the
unit
is
connected
to the
TRS-80.
9.
RECORD.
Press
together
with
PLAY
before starting
to
save
program
or
data.
Tape
motion
will
be
computer-controlled.
10.
REWIND.
Press
down
for
rapid
rewind
(not
controlled
by
computer).
11.
PLAY.
Press
down
before
starting
to
load
program
or
input
data
into
computer.
Tape
motion
will
be
computer-controlled.
FAST-Forward.
Press
down for
rapid
tape
advance
(not
controlled
by
computer).
13.
STOP.
Press
down
after
completion
of
tape
operation.
14.
EJECT.
Press
down
to
eject
cassette.
Always
press
STOP
first.
15. RECORD/BATTERY.
Lights
up during
tape
operations.
16. Tape
counter.
Helps
you
position
tape
to
desired
program
or
data
file.
Press
button
to reset
the
counter.
17.
Computer cassette
plug.
Connect
to TAPE
output
on
computer.
18.
Tape
output
plug.
Connect
to
EARjack
on
cassette
unit.
19.
Tape
input
plug.
Connect
to
AUX
jack
on
cassette
unit.
20.
Tape
control
plug.
Connect
to REM
jack
on
cassette
unit.
PREPARATION
FOR
USE
WITH
THE
TRS-80
Using the
computer
cable
supplied,
connect
the cassette unit
to your
computer's
TAPE
jack.
The five-pin
DIN
plug
(17)
goes
to the computer;
the
remaining
three
plugs
(18) (19)
(20)
go
to
the cassette
unit,
as explained in
Figure
1 on
page
3.
The unit
should
be
STOPped
-
press
STOP to be
sure it is.
Connect
one end of
the AC
power cord to
the AC
IN
of
the recorder,
plug
other
end
into a convenient 120V outlet
(220/240V
AC
50 Hz outlet where
the
sets are
so marked
on the bottom
for
European
and
Australian
models).
Con-
necting the
cord
to
the
set
automatically
disconnects
the
internal
battery
circuit.
Never
leave the cord plugged
into
an AC outlet when
it is
not
con-
nected
to
the recorder.
FOR NON-COMPUTER USE
For AC
operation, connect
the AC
power
Do not use
the
computer cable,
cord
as described
previously.
USE
WITH
BATTERIES
(not
recommended for computer
use)
INSTALLING
BATTERIES:
Your
recorder
requires
four
(4)
X"
size
1-1/i
volt batteries. To load batteries,
turn
the
recorder over and
open
the
batte.
compartment cover.
Insert batteries
as
indicated
within
compartment,
then
close the cover.
BATTERY
CONDITION:
The
BATTERY/RECORD LED
indicates
the
condition of
the
batteries.
When
you press the
PLAY
button, if
the
LED lights
brightly,
the batteries are
OK;
if
it does
not light
(or lights
only
dimly),
it is time
for new
batteries.
We recommend
Radio
Shack Catalog Number
23-581
or
23-551.
DC
6V
JACK: You can
conserve battery
power
by
using
an
external
source
of
6
volts
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
Cassettes
(26-301). These cassettes are
leaderless
(the
entire
tape
can
store
information)
and
individually
tested 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
does the
job quickly
and
effectively.
INSERTING
THE
CASSETTE
Press
the STOP
key, then
press
EJECT to
open the
cassette
compartment.
Hold
the
cassette
with
the
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 stopped,
press
STOP
again
to
turn
off
the
drive
motor.
remove
the
cassette,
press
STOP, then
EJECT.
To
play or
record
on
the
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
and
close the lid.
LOADING A
PROGRAM
OR
DATA
FILE
FROM
TAPE
1.
Set
the
volume
to
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.
Be sure the
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. Before
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,
the
LED
will
be
lit.
4.
When the
computer
has
completed the
tape
operation,
press
STOP.
SAVING
A
PROGRAM
OR DATA
FILE
ON
TAPE
1
.
Insert
a blank (new
or
bulk-erased)
tape, and rewind
it
to
the
beginning
of
the
tape
(if
using
tape with
a
leader,
be sure
to
advance
it
past
the
leader
to
the beginning
of
the
recording
tape).
2.
Before
the computer
is ready to
save
the program
or
data,
press
RECORD
and PLAY
together.
Both
keys
should
remain
"down".
You
do
not need
to
adjust
the
volume setting;
the
cassette
unit
does
that
automatically
during
record operations.
3.
You
can now
save the
program or data
in
tape.
The
computer
will
turn
the
tape
on and off
as
necessary
to
complete the
operation.
4.
When
the
operation is
complete,
press STOP
on
the
recorder.
Note:
It is possible
to
record
two
or
more
programs
or
data files
on
one
side
of
a tape.
However,
this
takes
a
little
extra
care
and
attention
on
your
part.
First rewind
the tape and
reset the
tape counter.
Then
keep
a
written
account
of
the counter
reading
where
each
program
or
data file
starts.
When
you are
ready
to
load
in
a
particular
program or data file,
rewind the
tape,
reset
the counter, then
use
fast-forward
or
rewind
to
position
the tape
to
just
ahead
(one digit)
of the desired
tape
section.
OTHER
USES FOR
THE
RECORDER
The
CTR-80A
will
also serve
as
an excellent general-purpose
recorder.
Operation
is quite
similar
to
that described
above,
only
the unit
is not
con-
nected
to
the TRS-80,
and
is
totally
under manual control.
TO
PLAYBACK
1.
Rewind
the
tape by
pressing
the
REWIND
key.
2.
Press
the
STOP
key
when
you
reach that
section of the
tape
you wish
to
play.
3.
Press
the
PLAY
key and adjust the
VOLUME control for
the
desire
sound level
from the
speaker.
4.
To
stop
playback,
press the STOP
key.
If you want,
let the
tape
play
to
the
end and
the
unit will automatically
shut
off
the
power.
5.
When
playing
back
a recorded tape,
make sure
the
RECORD
key is not
pressed;
otherwise
the
recorded tape
will
be erased.
6.
For
private
listening,
connect the
earphone to the EARphone
jack on the
side
of the
recorder.
TO RECORD
RECORDING
WITH
BUILT-IN
CONDENSER
MICROPHONE:
1.
Press the
RECORD
and
PLAY keys simultaneously
and
recording
will
start.
2. During
recording,
a
built-in Automatic
Level
control
(ALC)
circuit
automatically
sets the
proper recording
level.
3. The built-in
condenser
microphone
is
highly
sensitive
and
will
pick
up
sound from
practically
any
distance
in a
normal
size
room.
4.
At
the
completion
of
the
recording press the STOP key.
If
the
end
of
the
tape
is
reached
while
recording,
the
unit
will
shut off
automatically.
5.
As
you record,
the
BATTERY/RECORD
LED will flash
with
peaks
of
sound.
This
will
remind
you
that
you
are
recording.
RECORDING WITH
EXTERNAL
MICROPHONE:
Connect an optional microphone
to
the
REMote/MICrophone
Jacks,
this
automatically disconnects
the
built-in
microphone.
Recording
procedures
are the
same as
for
recording with
the
built-in microphone.
Use
the remote
switch on
the
microphone
to
temporarily
stop
recording.
RECORDING FROM
RADIO
OR
PHONOGRAPH:
1
.
Connect
signal from
the external source
into
the AUX jack
(use
a
suitable
patch
cord
with
proper plug).
2.
Set
the Volume
control
of the
external sound
source to
a normal
listening
level.
3. Follow the instructions
noted above.
NOTE:
When
both
MIC
and AUX
jacks are
connected,
only
MIC
jack is
functional.
REWIND
AND
FAST-FORWARD KEYS
1. To
rewind
tape, press
the
REWIND
key.
2.
To move tape
rapidly
in
a
forward direction,
press the FAST-Forward
key.
3.
IN
either
case,
to
stop
tape
travel, press
the
STOP key.
TO
ERASE
TAPE
To
change
recordings,
merely record over
the old recording. The
old
recording will
automatically
be
erased
and the
new
one
put
on
the
tape. If
you
do
want
to
erase
a cassette,
or
just a
portion
of a
recording, insert
the
special
Dummy
Plug
(provided) into
the MIC
jack.
Then,
operate the
CTR
80A just
as
+
hough you
were recording.
As
the
tape
moves,
it
will
be erased
clean
(no
ound
pick
up
from
Mic
when
using this
Dummy Plug).
or
cm
Dummy
Plug
ACCIDENTAL
ERASURE PREVENTION
Cassettes
have
a built-in
device
to
automatically prevent
erasure
of
a previous
recording.
It is
a
small
plastic
tab at the back of
the
cassette.
To
activate
the
erase-protect
feature,
break off
the
plastic
tab with a
screwdriver.
There
is
a
tab
for each
side;
be
sure you break
off
the correct
tab.
If
you
do
want
to
record
again
on
that
cassette, put a
piece of
tape
over
the
hole
where
you
broke
off
the
tab.
CAUTION:
If you
have
a cassette
with
the tabs broken off,
don't try
to force
the
RECORD
key
down.
You
can damage a
part
of
the
mechanism.
For SIDE 2
Plastic Tab
MAINTENANCE
To
keep
your
recorder
perfoming
up to
its
capabilities
as
a
data
storage
device,
it is
very
important
that
you clean the head and
capstan
regularly.
The
actual
time
interval
between
maintenance
depends on
how
much
you
use the
unit. If
you
begin
having
trouble
loading
data
or
programs,
it's
probably
time
to give
the
unit
a
thorough
cleaning.
As a
general rule,
clean
the
unit
every
1
0-
20 hours
of
operation.
CLEANING
PROCEDURE
With
batteries
and
cassette
removed,
and with
cassette
fid
up,
press
down the
PLAY
key, exposing the
erase and record heads
and
the rubber
drive wheel,
Clean
these points,
using
a
cotton
swab
moistened
with
denatured
alcohol
(not rubbing alcohol)
or with
a special
head
cleaning fluid.
Your
Radio
Shack
store
has these
items.
After
cleaning,
be
sure
to
press the STOP
key,
so that
these
parts
may return
to
their
normal
operating position
for
cassette
loading.
For
easy
cleaning,
we
recommend
our
Cassette
Head
Cleaning
Cartridge,
Catalog Number
44-1160.
^
Demagnetizing
the
Heads
v
ou should also
demagnetize
the heads
periodically.
Again,
how
often
epends on
how
much
you
use the unit.
We
suggest that
you
demagnetize
the
head
after
every
10-20
hours of
operation.
For
this
operation,
you'll
need
the Radio
Shack Tape
Head
Demagnetizer,
Catalog
Number
44-211.
2
<
EC
<
D
S
111
I
U
0)
I
ca za
l
sa
J
»a
A
]-
J
f
i<
1
O
e
a.ro
l
I
-^QOOO 00 ,
1
s
10
Loading...