Radio Shack | Portable Cassette Recorder | Owner`s manual | Radio Shack Portable Cassette Recorder Owner`s manual

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Cat. No. 14-1107A
OWNER’S MANUAL
Please read before using this equipment.
CTR-94
DC Portable Cassette Tape Recorder
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FEATURES
Your Radio Shack CTR-94 DC Portable Cassette Tape Recorder is reliable, easy-to-use, and very handy at
home, in your office, in your vehicle,
or anywhere you go.
Its features include:
Automatic Stop — protects the tape
and tape handling parts by automatically stopping the tape when it reaches the end.
Automatic Level Control (ALC)
Circuit — ensures quality recording
by automatically setting the proper
recording level.
Record/Battery Indicator — flikers
during recording and lights steadily
when the batteries need replacing.
Built-in Condenser Microphone —
gives you high-sensitivity for recording conferences or lectures.
Supplied Earphone — let you listen
in privacy.
Auxiliary Input Jack — lets you
connect a radio, tape deck, or CD
player so you can record from these
external audio sources.
External Microphone Jack — lets
you connect an external microphone
so you can record an individual but
exclude the surrounding noise
Remote Control Jack — lets you
connect an external microphone with
an on/off switch so you can control
the CTR-94 from your microphone.
Erasing Plug — plugs into the external microphone jack so you can
erase a cassette tape by recording
silence.
Retractable Handle — lets you easily carry the CTR-94.
Three Power Sources — let you
power the CTR-94 from four C batteries (not supplied), standard AC power (with an optional AC adapter), or
vehicle DC power (with an optional
DC adapter).
© 1996 Tandy Corporation.
All Rights Reserved.
Radio Shack is a registered trademark used by Tandy Corporation.
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CONTENTS
Preparation ....................................................................................................... 4
Connecting Power ....................................................................................... 4
Using Internal Batteries ......................................................................... 4
Checking the Battery Condition............................................................. 5
Using AC Power .................................................................................... 5
Using Vehicle Battery Power ................................................................. 6
Connecting an Earphone ............................................................................. 7
Listening Safely ..................................................................................... 7
Traffic Safety ......................................................................................... 7
Operation .......................................................................................................... 8
Loading a Cassette ...................................................................................... 8
Playing a Tape ............................................................................................. 8
Recording .................................................................................................... 9
Using the Built-In Microphone ............................................................... 9
Using an External Microphone .............................................................. 9
Recording from an External Audio Source .......................................... 10
Tape Tips ................................................................................................... 11
Recommended Tapes ......................................................................... 11
Erasing a Cassette Tape ..................................................................... 11
Preventing Accidental Erasure ............................................................ 12
Restoring Tape Tension and Sound Quality ........................................ 12
Maintenance.................................................................................................... 13
Cleaning the Tape-Handling Parts ............................................................. 14
Specifications ................................................................................................. 15
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PREPARATION
CONNECTING POWER
You can power your CTR-94 from
any of these power sources:
• Internal batteries
• Standard AC power (with an
optional AC adapter)
• Vehicle battery power (with an
optional DC auto adapter)
Note: Connecting an adapter disconnects the internal batteries.
Using Internal Batteries
You can power your CTR-94 from
four C batteries (not supplied). For
the best performance, we recommend alkaline batteries, such as Cat.
No. 23-551.
1. Press down on the battery compartment cover’s grooves and
slide it off in the direction of the
arrow.
Cautions:
• Always dispose of old batteries promptly and properly.
• Never leave dead, old, or
weak batteries in the CTR-94.
Batteries can leak chemicals
and corrode or damage electronic circuits.
• If you do not plan to use batteries in the CTR-94 for a
month or more, remove the
batteries to protect the CTR94 from possible battery leakage.
3. Install the batteries as indicated
by the polarity symbols (+ and –)
marked inside the battery compartment.
Cautions:
• Use only fresh batteries of the
required size and type.
• Never mix fresh and old batteries, or different battery
types.
4. Replace the cover.
2. Remove the old batteries (if necessary).
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Checking the Battery
Condition
To check the battery’s condition,
press PLAY, REWIND , or FAST-F. If
the RECORD/BATTERY indicator
lights steadily, the batteries need replacing.
(illus)
• Always plug the adapter into the
CTR-94 before you plug it into
the AC outlet, and always
unplug the adapter from the AC
outlet before you unplug it from
the CTR-94.
Note: The recorder automatically
disconnects internal batteries when
you connect an AC adapter.
1. Set the adapter’s voltage switch
to 6V.
(illus)
Using AC Power
You can also power the CTR-94 from
standard AC power using an AC
adapter, such as Radio Shack Cat.
No. 273-1662 (not supplied).
2. Insert the adapter’s green-tipped
barrel plug into the adapter’s
cord so it reads TIP-NEG.
(illus)
Cautions:
• The recommended adapter supplies 6 volts and delivers at least
300 milliamps. Its center tip is
set to negative, and its plug correctly fits the CTR-94’s DC 6V
jack. Using an adapter that does
not meet these specifications
could seriously damage the
CTR-94 or the adapter.
3. Plug the adapter’s barrel plug
into the DC 6V jack on the left
side of the CTR-94.
EAR
DC 6V
+
AUX
REM
MIC
MIN – VOLUME – MAX
-
4. Plug the other end of the
adapter into a standard AC outlet.
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Using Vehicle Battery Power
You can also power the CTR-94 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 cigarettelighter socket.
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.
2. Insert the DC adapter’s blacktipped barrel plug into the
adapter’s cord so it reads TIPNEG.
(illus)
3. Insert the adapter’s barrel plug
into the CTR-94’s DC 6V jack.
EAR
DC 6V
+
AUX
REM
MIC
MIN – VOLUME – MAX
-
• 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)
6
4. Plug the adapter’s larger plug
into the vehicle’s cigarette lighter
socket.
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CONNECTING AN
EARPHONE
For private listening, you can use the
supplied earphone. Insert the earphone’s 1/8-inch plug into the EAR
jack.
EAR
AUX
REM MIC
MIN – VOLUME – MAX
Note: Connecting the earphone automatically disconnects the built-in
speaker.
Listening Safely
To protect your hearing, follow these
guidelines when you use an earphone.
• Do not listen at extremely high
volume levels. Extended high
volume listening can lead to permanent hearing loss.
• Set the volume to the lowest setting before you begin listening.
After you begin listening, adjust
the volume to a comfortable
level.
• 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 an earphone 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.
EAR
(illus)
Caution: If you do not remove
excess slack, the tape might get
tangled in the record/playback
mechanism.
2. Press STOP/EJECT to open the
cassette compartment door.
AUX
REM MIC
MIN – VOLUME – MAX
1. Load a prerecorded cassette
tape into the compartment.
2. Press PLAY. The cassette plays
until it reaches the end of the
side, then it automatically stops
and PLAY releases.
MIC
CT R- 94 AC /BA TT ERY CA SS ET TE R EC ORD ER
MIC
CT R- 94 AC /BA TT ERY CA SS ET TE R EC ORD ER
RECORD
PLAY
REWIND
FAST-F
STOP
EJECT
RECORD
PLAY
REWIND
FAST-F
STOP
EJECT
PAUSE
PAUSE
Notes:
3. Load the cassette with its open
edge toward the controls, the
desired side facing up, and its
full reel on the left.
(illus)
4. Close the door.
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• Press PAUSE to temporarily
stop playback. To resume
playback, press PAUSE again.
• Press FAST-F or REWIND to
rapidly wind the tape forward
or backward. To resume play,
press STOP/EJECT then PLAY.
• The cassette automatically
stops when the tape reaches
the end only in the PLAY or
RECORD modes, and not in
the FAST-F or REWIND
modes.
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3. Adjust VOLUME to the desired
listening level.
4. Press STOP/EJECT to completely stop playback before it
automatically
stops.
Press
STOP/EJECT again to open the
cassette
compartment
and
remove the cassette.
RECORDING
3. Press RECORD to begin recording. Both PLAY and RECORD
lock down.
CT R- 9 4 A C/B AT TE RY C AS SET TE RE COR DER
MIC
RECORD
PLAY
REWIND
FAST-F
STOP
EJECT
PAUSE
4. Speak into MIC.
MIC
Notes:
CT R- 9 4 A C/B AT TE RY C AS SET TE RE COR DER
RECORD
• Before you load a cassette tape
for recording, be sure the cassette’s erase-protection tabs are
in place (see “Preventing Accidental Erasure”).
• The CTR-94’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.
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.
PLAY
REWIND
FAST-F
STOP
EJECT
PAUSE
Note: To temporarily stop recording, press PAUSE. To resume
recording, press PAUSE again.
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 condenser microphone.
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1. Load a blank cassette tape, or
one you want to record over, into
the cassette compartment.
Recording from an External
Audio Source
2. If the external microphone has
only a 1/8-inch plug, insert it into
the recorder’s MIC jack.
You can record directly 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.
EAR
AUX
REM
MIC
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.
MIN – VOLUME – MAX
1. Load a blank cassette tape, or
one you want to record over, into
the cassette compartment.
If the external microphone has
two plugs and an on/off switch,
you can remotely control the
CTR-94 from your microphone.
Insert the microphone’s 1/8-inch
plug into the recorder’s MIC jack,
and the smaller plug into the
REM jack.
3. Press RECORD to begin recording. Both PLAY and RECORD
lock down.
Note: To temporarily stop recording, press PAUSE on the recorder
(or OFF on the microphone). To
resume recording, press PAUSE
again on the recorder (or ON on
the microphone).
4. Speak into the external microphone.
5. Press STOP/EJECT
recording.
10
to
stop
2. If you connected an external
microphone, disconnect it.
3. Connect your external audio
source to the AUX jack, using an
optional patch cord with a 1/8inch plug at one end and the
appropriate plug at the other end
that
matches
your
audio
source’s output jack.
EAR
AUX
REM MIC
MIN – VOLUME – MAX
4. Start the sound source and set
its volume to a normal listening
level.
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Note: During recording, the
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
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.
stop
Important: Most material on 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.
Erasing a Cassette Tape
To record over a cassette tape, simply record as usual. The cassette
deck records over the previous recording.
To erase a cassette tape, insert the
supplied erasing plug into the MIC
jack and press RECORD.
EAR
AUX
REM MIC
MIN – VOLUME – MAX
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, which is available at
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.
(illus)
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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.
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MAINTENANCE
Your Radio Shack CTR-94 DC Portable Cassette Tape Recorder is an example
of superior design and craftsmanship. The following suggestions will help you
care for your CTR-94 so you can enjoy it for years.
Keep the CTR-94 dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits.
Handle the CTR-94 gently and carefully. Dropping it can damage
circuit boards and cases and can cause the CTR-94 to work improperly.
Use and store the CTR-94 only in normal temperature environments. Temperature extremes can shorten the life of electronic
devices and distort or melt plastic parts.
Keep the CTR-94 away from dust and dirt, which can cause premature wear of parts.
CLEANER
Wipe the CTR-94 with a damp cloth occasionally to keep it looking
new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the CTR-94.
Modifying or tampering with the CTR-94’s internal components can cause a malfunction and might invalidate your CTR-94’s warranty. If your CTR-94 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 the tape
touches. This can greatly reduce the
cassette recorder’s performance.
To prevent noise and poor high-frequency response, clean the cassette
recorder’s tape-handling parts after
every 20 hours of use.
Note: Your local Radio Shack store
carries a complete line of cassette
cleaning supplies.
1. Remove the batteries and disconnect any other power source.
2. Open the cassette compartment
cover.
3. Press PLAY to expose the tapehandling parts.
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4. tape head cleaning solution or
denatured alcohol to gently
clean the capstan, pinch roller,
tape head, and tape guides.
(illus)
5. When you finish cleaning, press
STOP/EJECT and close the compartment.
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SPECIFICATIONS
CASSETTE PLAYER
Track System ........................................................................... 2-Track Monaural
Tape Speed .......................................................................................4.76 cm/sec
Recording System ........................................................ Magnetic Erase, AC Bias
Frequency Response ............................................................ 125–6.3 kHz ±6 dB
Signal-to-Noise Ratio ..................................................................................55 dB
Wow and Flutter ......................................................................................... 0.35%
GENERAL
Power Requirements................................................................................. DC 6V
Four C Batteries (Cat. No. 23-551/651)
AC Adapter (Cat. No. 273-1662)
DC Auto Adapter (Cat. No. 14-844)
Dimensions (HWD)......................................................... 13/4 ¥ 511/16 ¥ 95/8 Inches
(45 ¥ 145 ¥ 245 mm)
Weight (without batteries)......................................................................... 1.75 lb.
(794 g)
Specifications are typical; individual units might vary. Specifications are subject
to change without notice.
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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
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