•
j
TRS-80
CCR-82
Computer
Cassette Recorder
.
Operation
Manual
Catalog Number 26-1209
... ,
4.
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1
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.
Contents
Controls and
Connections
1
Features
,
2
Preparation for
Use
3
Power
Source
.
3
Inserting
the
Cassette
4
Connecting
to
the Computer
4
Operation with
the Computer
5
Loading
a
Program or Data File from
Tape
5
Locating
a
Program
or Data on the Tape
5
Saving
a
Program
or Data File on the Tape
6
Other
Uses for
the Recorder
8
To Play Back
g
To Record
9
To Erase
Tape
.
. . .
9
Accidental Erasure Prevention
10
Maintenance
11
Specifications
—12
Schematic Diagram
13
Controls
and
Connections
®
® ©
(A)
Tap* output p4uq (lo iARphone
Jack)
iS'Tbpd
input plug
(to AUXiMary
Input
Jack)
iS'Tape control plug
(to BEWot*
Jackf
!§)
Computer cowette
plug
(:o TAPE.
C*SS. Or CASSETTE
dIN pli/g)
©Tapft counttr
©Ca»s«tte
Compartment
©DC
6V
Jack
©EARphonw
Jack
©AUXiliorv
Jack
©REMote/WICrophonu
Jacks
©RECORD/LOW
BATTERY
Indicator
©STOP/EJECT
Koy
©REWI
WD/REVIEW
Key
u2i BtCORD.'CSAV
E Kwy
H^PLAV/CLOAD
Key
©FAST-Forward/CUE
K*y
(^VOLUME Control
Q
MONITOR Switch
Q}
PAUSE Switch
QjrDATA Indicator
-
1
-
Features
Computer
Controlled: Allows the
Computer
to
start or stop the tape
to
load or save programs and data,
CUE/REVIEW
Functions: Enable instant
fast-forward or rewind while
in either
save/record or load/play mode,
independent
of
the Computer.
These
functions allow you to
quickly locate any desired
portion
of the
tape,
MONITOR Switch:
Enables monitoring of the sound while saving
programs and data.
DATA
Indicator:
Illuminates to show that programs and data are being
loaded to the Computer. Also used
with
CUE/REVIEW to locate data
and
/or programs on the tape.
VOLUME Control with Preset Marker:
Set to the
marker
position for
program and data
loading.
Automatic Shut-Off Mechanism:
Automatically shuts off the recorder
when the end of the tape
is reached
while
in
the play/load
or
record/save
mode.
This
saves
wear and strain on the
unit, the tape,
and
the batteries.
Built-in A.L.C. (Automatic Level Control) Circuit: Enables
you to
automatically obtain perfect recording
levels for
both recording
music
and saving programs/data
»
no need
to
adjust the
volume.
Tape Counter:
Helps
you to quickly find a specific section of the tape.
Switchablc
PAUSE: Permits
you to
stop the tape
instantaneously, either
in record
/save or pi ay/load mode
-
or
you can
switch off
the remote
function of
the computer to allow for manual control of the tape move-
ment.
Convenient
3-Way
Power:
Can be powered by the internal batteries, by
an AC
power
source via
AC
adapter, or by a car battery via DC car
adapter.
RECORD/LOW BATTERY Indicator:
Serves two functions. During
recording/saving,
the LED will light to show the presence of a recording
signal. In any oiher
function, it will
give
you an indication of the battery
condition
-
the
LED
lights
up
when
the batteries need to be replaced.
You may note
that the
LOW BATTERY Indicator
flashes
briefly
as
you
switch function keys.
This
is normal and does not
mean the batteries are
weak. If
the LED stays on,
the
batteries
need to
be replaced. The LOW
BATTERY
Indicator
is
designed so
that the LED lights up any time the
voltage drops below
the
required
level. Don't let the batteries get so
weak that
they
cannot light the LED,
-2-
Preparation
for
Use
Power Source
•
Installing
Batteries: Your recorder requires
four
(4)
AA
size 1-1/2 volt
batteries.
(We
recommend Radio Shack Enercell
batteries, catalog, number
23-582
or
23-552), Ti> load batteries, turn the recorder over and open the
battery
compartment cover. Insert batteries as indicated
within
the
compartment; then
close
the
cover,
ZZ
ZZ
ZZ
ZZ ZZZ
WARNING: Weak
batteries, even
~^^_
"~" ~~" """
^~
"leak-proof* types, may
swell and
—
—
—
—
MM
—
leak. To avoid damage
to
the
%
• recorder,
remove batteries
when
they are
weak
or if you
are
going
to
store
the
recorder for
an
ex-
tended period of time.
•
DC 6V Jack:
When
you
want
to use the
unit
with
standard AC
power
(and save the battery
power),
use the AC
adapter
(Radio Shack Catalog
Number
273-1454
)
[for 240V AC, use
14-9854
(UK)
or 14-9521
(Aus-
tralia)] , Connect it to
the DC
6V
jack on the unit and
plug the adapter
into an AC outlet.
•
Car Battery: If your vehicle has 'a
12-volt, negative ground electrical
system, you can
provide power to your
recorder from your car battery.
Use our DC «iuto adapter (14-844D), Set
the switch on
the
adapter to
the
6V position
and
connect
it to
the DC
6V
jack. When
the
adapter is
connected, the internal batteries are
automatically disconnected.
CAUTION:
If
you
use an
adapter other than Radio Shack's
recommended
type, you
must
be sure that
the voltage is correct
(6V
DC
only)
and
that the
center terminal
of
the connector is negative. Failure to
observe these
two
vital points may result
in
damage to your recorder
and/or
adapter.
-3
-
Inserting
the Cassette
Before inserting or
removing the cassette, be
sure to
press the STOP/EJECT
key to cancel
any functions that may have
been
previously
selected. Open
the
cassette lid by pressing
the STOP/EJECT
key again.
Hold the cassette
with
the open side toward
you and insert
it into the
opening
so that
the full
reel
is on
your
left;
then
close
the lid.
After
you've completed recording
or playing
on one side of the
cassette, open the lid,
turn the
cassette
over
and re-insert it.
You
are now
ready to record or play
the second side.
,;,.
Connecting
to the
Computer
CAUTION:
Some
Computers
require their own
connection
cables. Refer
to
your
Computer
and/or cassette
interface
owner's
manual.
Use the
cable
to connect to
the Computer.
1. Connect
to
the EARphone
jack
on the
cassette unit via
the black
tape
output
plug.
2.
Connect
to the AUXiliary*
jack on the cassette
unit via the
gray
tape
input
plug,
3. Connect
to
the REMote
jack
on the cassette
unit
via
the gray
tape
control
plug.
4. Connect to
the
Cassette
Tape output
on the
Computer via
the Computer
cassette plug.
*
Some
of the
Computers,
especially
the Pocket
Computers, need
to be
connected
to the MIC
jack, not the AUXjack.
(Refer
to your Computer
and/or cassette
interface
owner's manual.)
Note:
Some
connecting
cables have
plugs that are
too long to fit
into
the
jacks on the
CCR-82. When using
a connection
cable other
than
the one
supplied with
your
CCR-82, insert
the plug until
you feel
a
slight
"catch".
Do not force
the plug
all the
way in.
Operation
with
the
Computer
Loading a Program
or Data
File
from
Tape
1.
Set
the VOLUME
control to
the P
marker.
If you
have
trouble in
loading,
adjust the VOLUME
setting.
When
you
have found
the
VOLUME
setting that
works
best with
your
Computer,
you
may want to
mark
that
position as
your preset
marker
on the VOLUME
knob,
2.
Be sure
the tape
is
positioned to
the point
just before
the
beginning
of
recorded
programs
or
data. Usually
this
means the
tape
should
be
rewound
all the way
(or positioned
using the
tape
counter).
The CUE/
REVIEW
functions
are quite handy
for
this purpose.
3.
If your Computer
has
a remote
control
function,
set
the PAUSE
switch
on the
CCR-82 to
the
OUT position.
If it
does not have
a
remote control
function,
set
the PAUSE
switch
to
IN
before
the Computer
is
ready to
load
the
program or
input the
data,
4.
Press PLAY on
the
cassette unit.
Then type CLOAD
.md piv^
(
ENTER)
(or
the equivalent
command on
your
Computer),
If you
set
the PAUSE
switch
to IN in
the preceding
step,
now
set
it to OUT
before pressing
(ENTER)
,
The tape
will begin
moving
arid
programs or
data will
be trans-
ferred lo
the
Computer, While
the
CCR-82
is sending
data
to
the Com-
puter, the
DATA
LED will blink.
5.
When
a Computer
remote
control
function
has completed
the
tape opera-
tion.
it will stop automatically.
For
a
Computer
without
a
remote con-
trol
function, watch
the DATA
LED; when
the
LED
goes
off.
it
means
the end of
ihe program/data
has been reached.
Pres-s
STOP.
CAUTION:
Be
careful
not to leave
the
RECORD
and/or
PLAY
buttons
engaged
for long
periods of
time.
Failure
to
observe
this warning
could
cause
a
flat
spot on
the drive
wheel,
resulting
in
sound distortion.
Locating
a Program
or
Data
on
the Tape
The CCR-82
allows
fast-forward,
'rewind
functions,
which
can
operate
apart
from the
remote control
of the Computer.
That is,
you can
do fast-forward
or rewind,
even with
the
Computer connected
to the REMotc
jack, With
the PLAY
key pressed
down,
press and
hold
FAST-F/CUE or
REWIND/
REVIEW.
Watch
the DATA LED
or listen to
the
recorded
sound
to help
you locate
the
beginning or
end of the
program
or data
on the
tape.
Release
the key,
and the CCR-82 is
again
under
the control of
the Computer.
If
you
do
not press the PLAY
key, the
FAST-F/CUE
or
REWIND/REVIEW
key
will
lock down
and the
sound
is automatically
muted.
-5-
Saving a
Program or
Data File
on the Tape
1. Insert a
blank
(new
or bulk-erased) tape,
and
rewind
it to the
beginning
of
the Line.
It"
you
use a tape with
a leader,
be
sure to
advance it
past the
leader
to
the
beginning of the recording
tape,
2. If your
Computer
has a
remote control
function,
set the PAUSE switch
on the
CCR-82
to
the OUT position,
(If it does
not
have a remote
control
function, set the
PAUSE
switch to
IN
before
the Computer is
ready
to save
the
program or
the data.)
3. Press RECORD
on the cassette unit, (When
RECORD
is pressed, the
PLAY bu
t con automatically goes down.)
Then type
CSAVE and press
(RENTER)
(or the equivalent command on your
Computer).
If you set
the PAUS
E switch to
IN
in the preceding step, now
set
it
to
OUT
before
pressing
(ENTER) . The
tape will begin moving
and programs or
data
will be saved
onto the CCR-82. While the
CCR-82
is
receiving
data, the
RECORD
LED
will
blink.
There is
no
need to adjust the VOLUME
set-
ting; the
CCR-82 does
that automatically during the save operation.
4. When
the save
operation is complete,
a
Computer
with the remote
con-
trol
function will stop
the tape automatically. If your
Computer does
not
have
the remote control
function, press
STOP at the end of the
save
operation.
Notes:
1.
When
you are saving data on
a
cassette
tape
with
a Computer that
does
not have a remote
control
function, we
recommend that
you
write
a pro-
gram
such that the end
of data
transfer is shown on the
display.
Then
you can manually
stop the
CCR-82 without much
loss of
the tape.
2,
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
record
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, and then
use FAST-FORWARD/REWIND
to
position
the tape just ahead of
the
desired
tope section. Remember, fast-
forward,'re
wind
can be done manually without
disconnecting the
REMote
jack.
-
6
-
We've already noted the special features
of your CCR-82; here
are some
suggestions to get most
from
your
unit.
•
On ordinary cassette recorders, you would have to disconnect the plug
from the earphone jack
to
monitor
the
sound from the
speaker. On the
CCR-82,
the MONITOR
switch allows you
to
listen to
the
sound without
disconnecting
the
EARphone
jack. Set the
MONITOR switch
to IN for
listening,
to
OUT if you do not need monitoring.
•
The
remote
control
jack
on normal cassette units turns
the unit on/off
remotely: you must
turn the unit
on first before using
fast-forward/cue
or rewind/review. We have
built in another leaf
switch
so you can fast-
forward/rewind without disconnecting
the
REMote
jack,
»
Another convenience is the PAUSE switch. Many computers
have the
remote control function. Set
the
switch
to
OUT
for
such
a Computer. If
your Computer does not have the remote control function,
use the
IN
and OUT positions to stop/start tape movement; these positions
function
the same as
the pause
switch on ordinary
tape
recorders.
To avoid remote control
by your Computer, set the PAUSE switch to
REM OFF; then
you
can manually play (or record) tape without discon-
necting the remote plug.
-7
-
-
Other Uses
for the Recorder
To Play Back
1.
Insert the pre-recorded cassette
tape.
2. Rewind the tape by pressing the
REWIND/REVIEW
key.
3. Press the STOP/EJECT key when you reach
the
section
of the tape
you
wish
to play
.
4. Press
PLAY.
Adjust the
VOLUME
control to a comfortable setting.
5. To stop
playback,
press
STOP/EJECT, When
the tape reaches the end,
the unit will automatically shut off the power.
6.
When
you want
to
listen
privately,
plug
an
earphone into the
EARphone
jack, Or. for greater Fidelity; you can play back
the
sound through an
external
speaker
which has
an
impedance
of
8
ohms. Connect
the speaker
via a patch
cord plugged into
the
EARphone
jack.
(Visit
your local
Radio Shack store for all accessories.)
To
advance
the
tape rapidly, press FAST-F/CUE, When
you
reach the ap-
proximate point you
want,
press
STOP/EJECT
and then press
PLAY.
To
rewind
the
tape rapidly, press
REWIND/REVIEW, When
you reach the
approximate point
you
want, press STOP/L'JECT and then press PLAY.
In each case,
always press STOP/EJECT before pressing PLAY. Abrupt
change in
tape speed/direction can damage the tape.
When
you
press and hold
FAST-F/CUE
or
REWIND/REVIEW while
the
PLAY
key is engaged, either
in
the
play
or record mode (the
RECORD key
is releasedifit is
in
the record mode),
the tape
will be wound rapidly and, at
the same
time,
you can hear the
recorded sound
in a
high-pitched tone.
This helps
you to locate the end
or beginning of
a particular
section
of the
tape. Release the
FAST-F/CUE or REWIND/REVIEW,
and
normal
play-
back
is resumed.
The
PAUSE switch
provides a
convenient method
of starting and stopping
the recorder
whenever it is playing
or
recording.
It
docs
not function in
fast-forward
or
rewind mode.
To stop tape
movement,
set
PAUSE
to
IN.
To continue tape movement, set the
PAUSE switch
to
OUT.
-
8
-
To Record
Connect an optional
microphone to the MIC
jack
on the unit; or connect
an
external source
such
as a radio, etc., to the
AUX jack with a suitable
patch
cord
with
proper
plugs.
When
both MIC and
AUX
jacks arc connected, only
the
MIC
jack is functional,
Set the volume
control of
the external sound
source to
a
normal
listening level.
Press
the
RECORD key.
Now
the tape starts moving
and
you are recording.
The
recording
level is
automatically set
by the
CCR-S2;you do not have
to
worry
about your recording
level being
too
high
or too low. The VOLUME
control has
no effect
on the sound.
You can
monitor
the sound
when you record
from an auxiliary
source.
Set
the MONITOR
switch
to
IN. If
you are
recording from
the microphone,
do
not
set
MONITOR to IN. If
you do, acoustic
feedback
(whistling) will take
place.
If your microphone
has a remote
plug, connect
it
to the REMote jack
on
the
CCR-82.
Use the remote switch
on
the microphone
to temporarily
stop
recording. But be sure
that
the
PAUSE
switch
k set to OUT!
To
Erase Tape
Each time you make a recording, any
previous recording
on the tape is auto-
matically erased; thus;,
the tape
may
be
used for new recording as many
times
as you
wish.
For best results, we
recommend that computer tapes be
bulk erased before reusing them. (Use
our Magnetic Bulk
Tape
Eraser,
Radio
Shack Catalog Number 44
-232.) This will assure that all
traces
of
previously
recorded data
are removed
and will not interfere with the new
data.
CAUTION;
The bulk tape
eraser erases both sides
of
a
cassette.
If
you
want to erase only
one
side,
disconnect
the plugs from
the
MIC
and/or
AUX
jacks
and
press
RECORD.
-
9
-
Accidental Erasure Prevention
Cassettes
have
a
built-in device to automatically
prevent erasure ofa previous
recording. It isasmall plastic tab at
the
back
of
the
cassette. To activate
the erasc-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,
(See
Fig-
ure
I-A.)
If you decide you
want
to record on
that cassette after you have
broken off
the tabs,
put
a piece of tape over
the hole where you
brake off
each
tab,
as
shown in
Figure 1-B.
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.
Figure 1-A
Figure
1-6
Figure 1. Erase Prevention Tabs
-
10
Maintenance
With
the
cassette removed, and with
the
cassette lid
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
nibbing alcohol) or
with a special head cleaning fluid. (Your local Radio
Shack store has these items,)
To insure
good
recording and
playback
results,
clean
after the first
6
hours
of
operation (and every
6-8
hours
of operation
after that). After cleaning,
be sure to press (he STOP/EJECT key,
so
that
these parts may
return to their normal operating position
for cassette
hold-
ing.
For
easy
cleaning, we
recommend our Cassette Head
Cleaner Tape
(44-
1160),
m
1 1 is a good idea to periodically demagnetize the tape heads, too. Use one of
our Tape
Head
Demagnetizes,
You can clean and
demagnetize
in one simple
operation
just
by playing our Cassette Demaunetizer Tape (44-63
1),
If you use the longer, thinner tapes
(C-90,
C-l
20,
etc.),
it
is absolutely
vital
that you keep your recorder clean. Failure to
do
so will
result in poor tape
handling, improper auto-slop function,
and
serious
tape wrap-ups.
Clean
the tape handling parts well and often.
CAUTION:
Do not expose
the tape recorder or
a
cassette to high temperatures or high
humidity.
Do not touch the tape heads
with
screwdrivers
or
other
metal objects, or
any magnetic
object.
Remove
the
batteries when
the
recorder will
not be used
for
more than
a
month, because
battery leakage may damage the unit. Don't leave weak
or
dead batteries
in the recorder.
-
11
-
Specifications
Tape System:
Tape Speed:
Wow
and Flutter:
(WRMS)
Signal-to-Noise Ratio:
(Playback/Overall)
Semiconductors:
Erase System:
AGC Delay
Time at Recording:
Turn On
Time at Record:
Record System:
Power Requirement:
Dimensions:
Weight:
2
-track monaural
4,75 cm/sec.
0.28%
50/39 dB
2ICs
5
transistors
4
diodes
DC erasing
0,4 sec.
0.4 sec.
AC bias
DC
4 "AA"
cells
Standard AC via adapter
External
12 VDC via
adapter
7-3/32"
x
4-11/16"
x
1-5/16"
(H
x
W
x D)
(1
80mm
x 1
1
9mm x 33.5mm
>
1.1
lbs(SOOg)
12
-
Schematic Diagram
u
** -
-
13
-
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