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Cat. No. 14-1108A
OWNER’S MANUAL
Please read before using this equipment.
CTR-102
AC•DC Portable
Cassette Tape Recorder
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FEATURES
Your Radio Shack CTR-102 AC•DC
Portable Cassette Tape Recorder is
a multi-functional recorder. It is easyto-use and reliable. You will find it
ideal for both personal and business
use.
Three Power Sources — let you
power the recorder from four C batteries, standard AC power, or vehicle
DC power (with an optional DC
adapter).
Its features include:
Built-in Condenser Microphone —
gives you high sensitivity for recording conferences.
Automatic Level Control (ALC)
Circuit — automatically ensures the
proper recording level.
Warning: To prevent fire or shock
hazard, do not expose this recorder
to rain or moisture.
Record/Battery Indicator — flikers
during recording and lights steadily
when the batteries need replacing.
CAUTION
MIC Jack — lets you connect an optional external microphone.
AUX Jack — lets you record from an
external sound source.
RISK OF ELECTRIC SHOCK.
DO NOT OPEN.
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
This symbol is intended to alert
you to the presence of uninsulated dangerous voltage within the
recorder’s enclosure that might be
of sufficient magnitude to constitute a risk of electric shock. Do not
open the recorder’s case.
Supplied Earphone — lets you listen in privacy.
Erase Plug — lets you easily erase
cassette tapes.
!
This symbol is intended to inform
you that important operating and
maintenance instructions are included in the literature accompanying this recorder.
© 1996 Tandy Corporation.
All Rights Reserved.
Radio Shack is a registered trademark used by Tandy Corporation.
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!
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CONTENTS
Preparation ....................................................................................................... 4
Connecting Power ....................................................................................... 4
Using Internal Batteries ......................................................................... 4
Using AC Power .................................................................................... 5
Using Vehicle Battery Power ................................................................. 5
Using an Earphone ...................................................................................... 6
Listening Safely ..................................................................................... 6
Traffic Safety ......................................................................................... 6
Operation .......................................................................................................... 7
Loading a Cassette ...................................................................................... 7
Playing a Tape ............................................................................................. 7
Recording .................................................................................................... 8
Using the Built-In Microphone ............................................................... 8
Using an External Microphone .............................................................. 8
Recording From an External Audio Source........................................... 9
Tape Tips ................................................................................................... 10
Recommended Tapes ......................................................................... 10
Erasing a Cassette Tape ..................................................................... 10
Preventing Accidental Erasure ............................................................ 11
Restoring Tape Tension and Sound Quality ........................................ 11
Maintenance.................................................................................................... 12
Cleaning the Tape-Handling Parts ............................................................. 13
Specifications ................................................................................................. 14
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PREPARATION
CONNECTING POWER
You can power the recorder from any
of three power sources:
• Internal batteries
2. Install the batteries as indicated
by the polarity symbols (+ and –)
marked inside the compartment.
Cautions:
• Standard AC power
• Use only fresh batteries of the
required size and type.
• Your vehicle’s cigarette-lighter
socket (with an optional DC
adapter)
• Never mix fresh and old batteries, or different battery
types.
Note: Connecting an adapter disconnects the internal batteries.
3. Replace the cover.
Cautions:
Using Internal Batteries
• Always dispose of old batteries
promptly and properly.
You can power your recorder with
four C batteries (not supplied). For
the best performance, we recommend alkaline batteries, such as
Radio Shack Cat. No. 23-551/651.
• Never leave dead, old, or weak
batteries in the recorder. They
can leak chemicals and corrode
or damage electronic circuits.
1. Press down on the battery compartment cover’s grooves and
slide it off in the direction of the
arrow.
(illus)
• If you do not plan to use batteries in the CTR-102 for a month
or more, remove the batteries to
protect the CTR-102 from possible battery leakage.
To check the battery’s condition,
press PLAY, REWIND, or FAST-F . If
the RECORD/BATTERY indicator
lights steadily, the batteries need replacing.
(illus)
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Using AC Power
To power the recorder from standard
AC power, plug the supplied AC power cord into the AC POWER 120V jack
on the right side of the recorder.
Then plug the other end into a standard AC outlet.
(illus)
Caution: Always plug the AC power
cord into the AC POWER 120V jack
before you plug it into an AC outlet,
and always unplug the AC power
cord from the AC outlet before you
unplug it from the AC POWER 120V
jack.
Note: The recorder automatically
disconnects internal batteries when
you connect the AC power cord.
Using Vehicle Battery Power
Cautions:
• The recommended DC adapter
supplies 6 volts and delivers at
least 300 milliamps. Its center tip
is set to negative, and its plug
correctly fits the recorder’s DC
6V jack. Using an adapter that
does not meet these specifications could seriously damage
the recorder or the adapter.
• Always plug the adapter into the
recorder before you plug it into
the cigarette-lighter socket, and
always unplug the adapter from
the
cigarette-lighter
socket
before you unplug it from the
recorder.
1. Set the DC adapter’s voltage
switch to 6V.
(illus)
2. Insert the DC adapter’s blacktipped barrel plug into the adapter’s
cord so it reads TIP-NEG.
(illus)
You can also power the recorder
from your vehicle’s battery using an
auto DC adapter (such as Radio
Shack Cat. No. 14-844, not supplied)
that connects to your vehicle’s cigarette lighter socket.
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3. Insert the adapter’s barrel plug
into the recorder’s DC 6V jack.
Note: Connecting the earphone automatically disconnects the built-in
speaker.
Listening Safely
(illus)
To protect your hearing, follow these
guidelines when you use an earphone.
• Set the volume to the lowest setting before you begin listening.
After you begin listening, adjust
the volume to a comfortable
level.
• Do not listen at extremely high
volume levels. Extended high
volume listening can lead to permanent hearing loss.
4. Plug the adapter’s larger plug
into the vehicle’s cigarettelighter socket.
Note: The recorder automatically
disconnects internal batteries when
you connect the DC adapter.
USING AN EARPHONE
For private listening, you can use the
supplied earphone. Insert the earphone’s 1/8-inch plug into the EAR
jack.
(illus)
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• Once you set the volume, do not
increase it. Over time, your ears
adapt to the volume level, so a
volume level that does not
cause discomfort might still
damage your hearing.
Traffic Safety
Do not wear earphones while operating a motor vehicle or riding a bicycle. This can create a traffic hazard
and is illegal in some areas.
Even though some earphones are
designed to let you hear some outside sounds when listening at normal
volume levels, they still present a
traffic hazard.
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OPERATION
LOADING A CASSETTE
1. Take up any slack in the tape by
turning one of the cassette’s
hubs with a pencil.
PLAYING A TAPE
Warning: To protect your hearing, set
VOLUME to its lowest setting before
you begin playing a cassette tape.
(illus)
Caution: If you do not remove
excess slack, the tape might get
tangled in the record/playback
mechanism.
(illus)
1. Load a prerecorded cassette
tape into the compartment.
2. Press PLAY.
2. Press STOP/EJECT to open the
cassette compartment door.
(illus)
(illus)
Notes:
3. Slide the cassette into the cassette guides, with its open edge
toward the buttons, the desired
side facing up, and its full reel on
the left.
(illus)
• Press PAUSE to temporarily
stop playback. Press PAUSE
again to resume playback.
• Press FAST-F or REWIND to
rapidly wind the tape forward
or backward. Press STOP/
EJECT, then PLAY again to
resume playback.
3. Adjust VOLUME to the desired
listening level.
4. Close the door.
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4. Press STOP to stop playback
before it automatically stops.
Press STOP/EJECT again to
open the cassette compartment
and remove the cassette tape.
3. Press RECORD to begin recording. Both PLAY and RECORD
lock down.
(illus)
RECORDING
Notes:
• Before you load a cassette tape
for recording, be sure its eraseprotection tabs are in place (see
“Preventing Accidental Erasure”).
• The recorder’s Automatic Level
Control (ALC) circuit automatically adjusts the recording level.
VOLUME has no effect on
recording.
Using the Built-In
Microphone
The built-in condenser microphone is
a high-sensitivity microphone that
easily picks up sounds, near or far.
This is handy for recording conferences or lectures.
Follow these steps to record using
the built-in microphone.
1. Load a blank cassette tape, or
one you want to record over, into
the cassette compartment.
2. Place the recorder 2 or 3 feet
from the recording source.
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Note: To temporarily stop recording, press PAUSE. To resume
recording, press PAUSE again.
4. Speak into MIC.
(illus)
5. Press STOP/EJECT
recording.
to
stop
Using an External
Microphone
You can connect an external microphone with a 1/8-inch plug to the recorder. This is handy for when you
want to record only an individual’s
voice and exclude all other sounds
in the surrounding area. Your local
Radio Shack store carries a wide
variety of external microphones.
Note: Connecting an external microphone automatically disconnects the
built-in microphone.
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Follow these steps to record using an
external microphone.
1. Load a blank cassette tape, or
one you want to record over, into
the cassette compartment.
2. Insert the external microphone’s
1
/8-inch plug into the recorder’s
MIC jack.
Recording from an External
Audio Source
You can directly record from an external audio source, such as a radio,
tape deck, or CD player, using a suitable patch cord (not supplied) with a
1
/8-inch plug.
Note: Before you connect an external audio source to the recorder, be
sure the source’s and the recorder’s
volume controls are set to their minimum setting.
(illus)
Follow these steps to record from an
external audio source.
Note: If the external microphone
has a separate, smaller plug for
remote operation, insert that
plug into the REM jack. Be sure
to turn on the microphone’s
remote switch for operation.
3. Press RECORD to begin recording. Both PLAY and RECORD
lock down.
Note: To temporarily stop
recording, press PAUSE . To
resume recording, press PAUSE
again.
1. Load a blank cassette tape, or
one you want to record over, into
the cassette compartment.
2. If you connected an external
microphone, disconnect it.
3. Connect your external audio
source to the recorder by connecting the patch cord’s 1/8-inch
plug to the recorder’s AUX jack.
(illus)
4. Speak into the external microphone.
5. Press STOP/EJECT
recording.
to
stop
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4. Start the external audio source
and set its volume control to a
normal listening level.
Note: During recording, the
recorder’s speaker is muted. If
you want to monitor the recording, use the supplied earphone.
5. Press RECORD to begin recording. Both PLAY and RECORD
lock down.
Note: To temporarily stop
recording, press PAUSE. To
resume recording, press PAUSE
again.
6. Press STOP/EJECT
recording.
to
stop
Important: Most material on compact disks and prerecorded tapes is
copyrighted. Unauthorized duplication of copyrighted material is a violation of the copyright laws of most
countries and such duplication may
result in fines and/or imprisonment.
Note, however, that in the United
States, it is not a violation of U.S.
copyright laws for a consumer to use
an audio recording device to duplicate musical recordings for noncommercial (personal) use.
TAPE TIPS
Recommended Tapes
Tape quality greatly affects the quality of the recording. We recommend
extended-range or low noise Type 1
regular length (60- or 90-minute) normal-bias cassette tapes. We do not
recommend long-play cassette tapes
such as C-120s because they are
thin and easily tangle.
Erasing a Cassette Tape
To record over a cassette tape, simply record as usual. The cassette
deck records over the previous recording.
To erase the entire cassette tape, insert the supplied erasing plug into the
MIC jack and press RECORD .
(illus)
Note: Be sure you have not connected anything to the AUX jack.
If you need to erase an entire cassette, you might prefer using a bulk
tape eraser, available from your local
Radio Shack store.
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Preventing Accidental
Erasure
Cassette tapes have two erase-protection tabs — one for each side.
When a tab is in place, you can
record on that side.
To protect a recording from being accidentally recorded over or erased,
use a screwdriver to remove one or
both of the cassette tape’s eraseprotection tabs. This prevents
RECORD from being pressed.
(illus)
If you later decide to record on a tape
side after you have removed the
erase-protection tab for that side,
place a piece of strong plastic tape
over that side’s erase-protection
hole. Be sure you cover only the hole
originally covered by the erase-protection tab.
Caution: Removing the erase-protection tabs does not prevent a bulk
eraser from erasing a cassette tape.
Restoring Tape Tension and
Sound Quality
After you play a cassette tape several times, the tape might become
tightly wound on the reels. This can
cause playback sound quality to deteriorate.
To restore the sound quality, fast-forward the tape from the beginning to
the end of one side, then completely
rewind it. Then loosen the tape reels
by gently tapping each side of the
cassette’s outer shell on a flat surface.
Caution: Be careful not to damage
the cassette when tapping it. Do not
touch the exposed tape or allow any
sharp objects near the cassette.
(illus)
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MAINTENANCE
Your Radio Shack CTR-102 AC•DC Portable Cassette Tape Recorder is an example of superior design and craftsmanship. The following suggestions will help
you care for your recorder so you can enjoy it for years.
Keep the recorder dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits.
Handle the recorder gently and carefully. Dropping it can damage
circuit boards and cases and can cause the recorder to work improperly.
Use and store the recorder only in normal temperature environments. Temperature extremes can shorten the life of electronic
devices and distort or melt plastic parts.
Keep the recorder away from dust and dirt, which can cause premature wear of parts.
CLEANER
Wipe the recorder with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong
detergents to clean the recorder.
Modifying or tampering with the recorder’s internal components can cause a malfunction and might invalidate your recorder’s warranty. If your recorder is not
performing as it should, take it to your local Radio Shack store for assistance.
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CLEANING THE TAPEHANDLING PARTS
Dirt, dust, or particles of the tape’s
coating can accumulate on the tape
heads and other parts that the tape
touches. This can greatly reduce the
cassette player’s performance.
To prevent noise and poor high-frequency response, clean the cassette
player’s tape-handling parts after every 20 hours of use.
Note: Your local Radio Shack store
sells a complete line of cassette
cleaning supplies.
1. Remove the batteries and disconnect any power source.
4. Use a cotton swab dipped in
tape head cleaning solution or
denatured alcohol to gently
clean the capstan, pinch roller,
tape guides, and tape head.
(illus)
5. When you finish cleaning, press
STOP and close the compartment.
2. Open the cassette compartment
cover.
3. Press PLAY to expose the tapehandling parts.
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SPECIFICATIONS
CASSETTE PLAYER
Track System ......................................................................... 2-Track Monaural
Tape Speed ......................................................................................... 4.75 cm/s
Recording System ................................................................................. AC Bias
Frequency Response (at ± 6 dB) .............................................. 125 Hz–6.3 kHz
Signal-to-Noise Ratio ................................................................................ 40 dB
Wow and Flutter (WRMS) ...................................................... Less Than 0.35%
GENERAL
Power Requirements ............................................................................... DC 6V
Power Sources ..................................... Four C Batteries (Cat. No. 23-551/651)
AC Adapter (Cat. No. 273-1662)
DC Auto Adapter (Cat. No. 14-844)
Dimensions .................................................... 91/2 x 511/16 x 113/16 Inches (HWD)
(241 x 144 x 46 mm)
Weight (without batteries) ........................................................... 2.1 lbs (950 g)
Specifications are typical; individual units might vary. Specifications are subject
to change without notice.
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NOTES
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RADIO SHACK LIMITED WARRANTY
This product is warranted against defects for 90 days from date of purchase from
Radio Shack company-owned stores and authorized Radio Shack franchisees
and dealers. Within this period, we will repair it without charge for parts and labor.
Simply bring your Radio Shack sales slip as proof of purchase date to any
Radio Shack store. Warranty does not cover transportation costs. Nor does it
cover a product subjected to misuse or accidental damage.
EXCEPT AS PROVIDED HEREIN, RADIO SHACK MAKES NO EXPRESS
WARRANTIES AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION
TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED
HEREIN. Some states do not permit limitation or exclusion of implied warranties;
therefore, the aforesaid limitation(s) or exclusion(s) may not apply to the purchaser.
This warranty gives you specific legal rights and you may also have other rights which vary from state to
state.
We Service What We Sell
9/94
RADIO SHACK
A Division of Tandy Corporation
Fort Worth, Texas 76102
3A6
Printed in Hong Kong