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AM/FM Cassette Car Stereo w/22 Watts x 2 Max Power
(120-2130A) Features
Faxback Doc. # 60662
Your RadioShack AM/FM Cassette Car Stereo has many practical, easy-to-use
features, and you can install it in almost any vehicle. The stereo's CD
input jack lets you connect any portable CD player with a DC adapter. The
tuner's digital synthesized PLL (phase-locked-loop) circuitry gives you
precise tuning and drift-free reception.
Balance, tone, fader and volume controls let you adjust the sound for
maximum listening pleasure. The stereo's features include:
CD Input Jack - lets you easily connect a portable compact disc
(CD) player.
Continuous Auto-Reverse - allows continuous play of both sides of a
cassette tape.
High Power - provides 32 watts of total power to give you
excellent audio response for all types of music.
Manual/Automatic Memory - lets you manually or automatically store six AM
Programming and 12 FM stations in memory so you can quickly
tune to those stations with the press of a
button.
Automatic Travel - lets you store an additional six AM stations and
Programming six FM stations separate from the manual/
automatic programmed memory groups.
Radio Monitor - lets you hear the radio while you fast forward
or rewind a cassette tape.
Preamp Outputs - lets you connect an optional equalizer/booster
with phono plugs.
Lighted Display with - lets you easily see the clock, radio and
Clock cassette deck function selections.
Scan Tuning - scans forward on the selected band, stopping for
several seconds on each station.
Seek Tuning - searches forward to the next strong station in
the selected band.
AM/FM Cassette Car Stereo w/22 Watts x 2 Max Power
(120-2130A)
Installation
Faxback Doc. # 60663
Preparation
CAUTION: Improper installation can damage your stereo and other components
in your vehicle's autosound system.
Before you install your stereo, read all the instruction's in this owner's
manual. You should be able to answer all of these questions about your
vehicle's electrical and sound systems:
Does my vehicle have a 12-volt negative ground electrical system?
Which terminal in my Vehicle's fuse box supplies power even when the
ignition is turned off?
Which terminal in my vehicle's fuse box is for accessories?
How do I connect a wire to the fuse box?
Also, be aware that installation in your vehicle might require cutting or
modifying your vehicle.
Place the stereo as close as possible to the selected mounting location.
We recommend that you install the stereo by temporarily connecting it to
ground and power, optional components, and your speakers. Then test the
connections. Next, disconnect the stereo, mount it in your vehicle, and
then reconnect it. The instructions in this manual are arranged in this
order.
CAUTION: Be sure your speaker can handle 32 watts of power (16 watts per
channel). Each speaker must have an impedance of at least 4 Ohms
Your local RadioShack store carries a full line of speakers.
Setting the Shaft Spacing
The size of existing openings in the dash or installation kit determines
the best spacing between the stereo's shafts (knobs).
The space between the shafts is preset to 5-13/16 inches (148 mm) at the
factory. You can change the spacing to 5-5/8 inches (142 mm), to 5-3/8
inches (136 mm), or to 5-1/8 inches (130 mm).
Follow these steps if you need to change the shaft spacing.
1. Loosen each shaft nut about halfway up the shaft.
2. Move each shaft positioner to the correct pair of holes.
3. Hold each shaft positioner in place as you re-tighten its shaft nut.
Preparing the Mounting Area
Before you mount the stereo, make sure you have all the necessary
materials. Then confirm that the stereo fits your vehicle's mounting area.
Note: If the mounting area is too large, you might be able to mount the
stereo with the supplied gasket or an in-dash installation kit,
available at your local RadioShack store. Follow the installation
kit's instructions to mount the stereo.
Routing Speaker Wires
If you install speakers, avoid routing the speaker wires near moving parts
or sharp edges. You can usually route wires along the channel beneath the
vehicle's door facings by carefully removing the molding that holds the
carpet in place. After you route the speaker wires, replace the molding.
Making The Connections
The supplied harness with the 14-pin connector includes all the lead wires
you need to connect the stereo to ground, power, optional components, and
speakers.
IMPORTANT: Do not cut the lead wires. If you cut any wire, you cannot
obtain a refund or exchange on this product. However, your
local RadioShack store will provide warranty service if you
cut a wire and find the product is defective.
You might need additional wire, depending on your individual autosound
system, to complete the connections. Your local RadioShack store carries a
full line of wire and wire management accessories.
CAUTIONS: For added safety and to protect your stereo, disconnect the
cable from your vehicle battery's negative (-) terminal before
you begin.
You must connect the GROUND (-), +12V TO IGNITION, and +12V TO
BATTERY wires first then make all other connections as described
in the following sections before you plug the wire harness with
the 14-pin connector into the stereo. If any wire connections
are made incorrectly or out of order, damage to the stereo is
possible.
Note: The wires in the wire harness have these colors and labels.
FRONT LEFT
(White)
FRONT RIGHT
(Gray)
+
+
(White/Black) -
(Gray/Black) -
REAR LEFT
REAR RIGHT
(Green)
+
(Violet)
+
(Green/Black) -
(Violet/Black) -
Wire
Harness
Black
Red
GROUND (-)
+12V to IGNITION
Blue/White AMP REMOTE
Yellow +12V to BATTERY
You must connect a separate wire to each speaker terminal as
described in the following procedure. Do not use a common wire or
chassis ground for any speaker connection.
Using an Adapter Harness
If you are replacing an existing stereo, or if your vehicle has been
factory-wired for autosound components, you might be able to use an
adapter harness to connect the power and speakers. RadioShack stores
sell adapter harnesses for most vehicles.
Follow the directions that come with the adapter harness to temporarily
connect the power and speakers.
Connecting Ground, Power, and Optional Components
Follow these steps to connect the wire harness to ground, primary and
memory backup power, and optional components.
Note: The (Red +12V to Ignition) and (Yellow +12V to Battery) wires each
have an In-Line fuse Holder.
1. Connect the black GROUND (-) wire to a chassis ground, such as a metal
screw attached to a metal part of the vehicle's frame. Be sure that
the screw is not insulated from the frame by a plastic part.
2. Connect the red +12V to IGNITION wire (with in-line fuse holder) to a
point in your vehicle's fuse block that has power only when you turn
the vehicle's key to either the accessory (ACC) or START position.
This connection turns on the stereo when you turn on the ignition or
turn the key to ACC, and turns off the stereo when you turn off the
ignition. This prevents your vehicle's battery from being drained if
you leave the stereo on when you turn off the ignition.
3. Connect the yellow +12V to BATTERY wire (with in-line fuse holder) to
your vehicle battery's positive (+) terminal or to a fuse that
provides a continuous source of 12 volts.
This connection provides power for the stereo's components (such as
the clock), and continuous power for the stereo's memory when the
ignition is turned off.
4. Connect the blue/white AMP REMOTE TURN ON 500MA MAX wire to any
optional equipment designed to run from a switched source that you
want the stereo to turn on and off (such as a booster or a power
antenna).
This wire does not provide power to the components. It simply turns
them on or off. If you do not use this wire, secure it with a wire tie
and do not let it touch metal.
Note: The optional equipment must be designed for use with a switched
power lead.
Connecting Two Pairs of Speakers
If you are using both front and rear speakers, follow these steps to
connect the harness to the speakers.
Speaker Wires:
FRONT LEFT
(White)
FRONT RIGHT
(Gray)
+
-
+
-
(White/Black)
(Gray/Black)
REAR LEFT
REAR RIGHT
(Green)
(Green/Black)
+
-
(Violet)
(Violet/Black) -
+
1. Use a small screwdriver to move (2 ch) (4 ch) on the bottom of the
stereo to (4 ch) (four channels).
2. Connect the gray FRONT RIGHT (+) wire to the front right speaker's
positive terminal. The terminal is usually marked with a plus (+)
sign or red mark.
3. Connect the gray/black FRONT RIGHT (-) wire to the front right
speaker's negative terminal. This terminal might be marked with a
minus (-) sign or unmarked.
4. Connect the white FRONT LEFT (+) wire to the front left speaker's
positive terminal.
5. Connect the white/black FRONT LEFT (-) wire to the front left
speaker's negative terminal.
6. Connect the violet REAR RIGHT (+) wire to the right rear speaker's
positive terminal.
7. Connect the violet/black REAR RIGHT (-) wire to the rear right rear
speaker's negative terminal.
8. Connect the green REAR LEFT (+) wire to the rear left speaker's
positive terminal.
9. Connect the green/black REAR LEFT (-) wire to the rear left speaker's
negative terminal.
Connecting One Pair of Speakers
If you are using only one pair of speakers, follow these steps to connect
the harness to the speakers.
1. Use a small screwdriver to move (2 ch) (4 ch) on the bottom of the
stereo to (2 ch) (two channels).
2. Connect the gray FRONT RIGHT (+) wire to the right speaker's positive
terminal. This terminal is usually marked with a plus (+) sign or red
mark.
3. Connect the violet/black REAR RIGHT (-) wire to the right speaker's
negative terminal. This terminal might be marked with a minus (-) sign
or it might not be marked at all.
4. Connect the white FRONT LEFT (+) wire to the left speaker's positive
terminal.
5. Connect the green/black REAR LEFT (-) wire to the left speaker's
negative terminal.
Connecting the Antenna
Connect the vehicle's antenna cable to the stereo's large black antenna
connector.
Testing the Connections
Make sure you have securely made all other connections, then plug the
harness's connector into the stereo's 14-pin wiring socket.
Then reconnect the cable to the vehicle battery's negative terminal to
test the connections.
Turn on your vehicle's ignition. The display should light and the
currently set time (or 12:00) should appear on the display when you turn
the left inner shaft clockwise until you hear it click to turn on the
stereo.
CAUTION: If the stereo does not work, immediately disconnect the cable
from your vehicle battery's negative (-) terminal. Then recheck
your connections.
After you verify that the display lights and the clock appears, follow the
instructions in "Mounting the Stereo" below.
Mounting The Stereo
Be sure you test the stereo first and verify that it works properly. (See
"Making the Connections" above.) Then follow these steps to mount the
stereo.
1. Disconnect the cable from the vehicle battery's negative (-) terminal.
2. Disconnect the wire harness and the antenna.
Note: If you are using an in-dash installation kit, follow the
procedure outlined in the kit, and proceed to Step 4 (skip Step
3).
3. Position the stereo in the dashboard as follows:
a. Place one supplied nut and washer on each shaft and tighten the
nuts about halfway up the shafts.
b. From behind the mounting surface, insert the shafts through the
mounting surface.
c. Adjust the nuts on the shafts until the stereo's front panel lines
up properly with the dashboard. Insert the supplied gasket if
additional front panel support is needed.
d. Place another supplied nut and washer on each shaft and tighten the
nuts to secure the stereo against the dashboard.
4. Place the trim plate and shaft-spacing adapters over the shafts.
Select the shaft-spacing adapters that fit over the shafts and into
the cutouts in the trim plate.
5. Place the remaining washers and nuts on the shafts and tighten the
nuts against the shaft-spacing adapters.
Note: To further secure the stereo, if your vehicle's dashboard space
permits access to the back of your stereo, attach one end of the
metal strap to the bolt on the back of the stereo. Then attach
the other end of the strap to a solid metal part of the vehicle
using an existing bolt or the supplied self-taping screw. This
strap also ensures that the stereo is properly grounded.
6. Place the inner and outer knobs on the shafts.
7. Reconnect the wire harness and antenna.
8. Reconnect your vehicle's negative (-) battery cable.
Using The Line Level Components
This stereo has preamp outputs (phono connectors) for low-noise connection
to an optional equalizer/booster, power amplifier, or other device that
has line-level inputs.
To ensure a low-noise connection, connect a ground wire between the stereo
and any additional component.
Note: When connecting an equalizer/booster not sold by RadioShack, refer
to its owner's manual.
Connecting a Compact Disc Player
You can connect a portable CD player (or other audio component with a
line-level output) to the stereo.
Use a stereo mini-jack cable with 1/8-inch plugs. (Your local RadioShack
store offers a wide variety of mini-jack cables.)
Connect the cable to CD IN and to the output jack of the CD player or
other component.
Note: When you plug a cable into CD IN, you will not be able to listen to
the radio or a cassette tape. Be sure you disconnect the CD player
when you are not using it.
AM/FM Cassette Car Stereo w/22 Watts x 2 Max Power
(120-2130A)
Operation
Faxback Doc. # 60664
Using The Controls
When you listen to your stereo, adjust the following controls to suit your
listening preferences.
VOLUME and ON/OFF knob
TONE Knob
BALANCE knob (PULL out)
TUNING knob
FADER knob
ON VOL - Turn the left inner knob clockwise until you hear it click to
turn on the stereo. Continue to turn the knob clockwise to
increase the volume. Turn the knob counterclockwise to reduce
the sound or until you hear it click to turn off the stereo.
WARNING: To protect your hearing, do not listen at high
volume levels. Slowly increase the volume to a
comfortable listening level.
0 TONE - Turn the left outer knob to adjust for the best treble and
bass balance. Turning it clockwise reduces the base while
turning it counter clockwise reduces the treble.
FADER 0 - Turn the right outer knob for the desired balance between the
front and rear speakers.
Note: If you have only one set of speakers and connected them
to the front speaker wires, turn FADER fully clockwise.
BAL (PULL) - Pull the left inner knob until it locks. Turn it clockwise or
counterclockwise to adjust balance between the left and right
speakers. Push the knob in to retain the setting.
TUNING - Turn the right inner knob in either direction to select the
desired AM or FM station.
Setting The Clock
Note: The clock appears on the display even when the stereo is turned off.
To set the clock, you must turn on the stereo.
1. Turn on the stereo and the radio station frequency appears. After 5
seconds, the clock reappears on the display.
Note: If the stereo is already on and you have the display set to the
radio frequency, press F/C (frequency/clock). The clock display
appears.
2. While holding down F/C (frequency/clock), turn TUNING counterclockwise
until the display advances to the correct hour.
Note: You can quickly turn and release TUNING to advance the
displayed hour or minute one digit at a time.
3. While holding down F/C, turn TUNING clockwise until the display
advances to the correct minute.
4. When the display shows the correct time, release F/C.
Radio Operation
Playing The Radio
Follow these steps to listen to the radio.
1. Turn ON VOL clockwise until you hear it click to turn on the stereo.
2. Press AM/FM to select the desired band. AM1 or AM2 appears on the
display when an AM band is selected. FM1, FM2, or FM3 appears on the
display when an FM band is selected.
Notes: Each time you press AM/FM, the radio automatically tunes to the
last station selected in that band.
ST appears on the display when an FM stereo signal is received.
3. Tune to the desired station in one of the following ways:
Manual Tuning: Turn TUNING in either direction to tune up or down the
selected band.
Seek Tuning: Press SEEK to tune to the next higher station with a
strong signal.
Scan Tuning: Press SCAN to scan the higher frequency stations. The
radio pauses for 5 seconds at each station. The
station's frequency flashes on the display. When the
radio pauses at a station you want to listen to, press
SCAN again to stop scanning.
Note: If the stereo does not find a strong station when
seeking or scanning, the stereo searches the band
again and stops on weaker stations.
4. Adjust ON VOL, TONE, FADER and BAL as desired.
Note: To temporarily display the frequency of the current station, press
and release F/C. The display shows the frequency for 5 seconds, then
returns to the time display.
Memory Tuning
You can store up to six AM and 12 FM stations in memory. Each memory group
(AM1, FM1, and FM2) holds up to six stations.
You can let the stereo search for any six stations in a band and
automatically enter these into a memory group, or you can manually enter
stations into a memory group.
Automatically Storing Stations
Follow these steps to automatically enter stations into a memory group.
1. Repeatedly press AM/FM until the stereo displays the band and memory
group where you want to store a group of stations. For example, to
store the first group of stations into AM1, repeatedly press AM/FM
until AM1 appears.
2. Hold down AMS (automatic memory scan) for about 3 seconds. The stereo
automatically stores the first six strong stations on the selected
band.
After the stereo has stored all six stations into memory, it tunes to
the first stored station in the memory group and begins to play.
Note: You can store a station manually if the stereo does not
automatically store it due to a weak signal or interference. See
"Manually Storing Stations," below.
Manually Storing Stations
Follow these steps to manually enter stations into memory.
1. Repeatedly press AM/FM to select the desired band and memory group
(AM1, FM1 or FM2).
2. Use any tuning method to tune to the station you want to store.
3. Hold down the desired memory location button (1-6) until the memory
location number and the frequency appear on the display. The volume
mutes briefly and the station is stored.
Storing Stations in Automatic Travel Programming Memory
The stereo can store the first six strong AM and the first six strong FM
stations it finds into its automatic travel programming memory (bands AM2
and FM3). This memory is separate from the stereo's memory groups, so it
does not replace the stations you manually stored.
1. Repeatedly press AM/FM to select the desired band (AM2 or FM3). The
stereo displays ATP.
2. Hold down AMS for about 2 seconds. The stereo displays LO, scans the
selected band, and automatically stores the first six strong stations
it finds in automatic travel programming memory.
After the stereo stores all six stations in the selected band, it
tunes to the first station stored in channel 1.
Notes: If the stereo does not find a strong station with automatic travel
programming, the stereo searches the band again and stops on weaker
stations.
If the stereo could not find any station, the last station tuned to
is recalled.
Selecting a Stored Station
To select a stored station, press AM/FM to select the desired memory group
then press the desired memory location button.
Note: Do not hold down the memory location button. This erases the
previously stored station and stores the currently tuned station in
its place.
Scanning Stored Stations
The radio can scan all stored stations in the FM or AM bands, pausing for
5 seconds at each station.
To start scanning stored stations, press AM/FM to select the band, then
press AMS. The radio begins scanning the stored stations - AM1 and AM2, or
FM1, FM2 and FM3.
Note: Do not hold down AMS. This causes the radio to automatically seek
and store six stations into the current memory group.
To stop the scanning when the stereo pauses at a station you want to
listen to, either press AMS or the station's memory location button.
Cassette Player Operation
Playing A Cassette
CAUTION: Avoid using C-120 cassette tapes. They are very thin and can
easily become tangled in the tape-handling parts.
Follow these steps to play a cassette tape.
1. Take up any slack by turning the cassette's hub with your finger or a
pencil. (Avoid touching the tape.)
2. Turn ON VOL clockwise until it clicks to turn on the radio.
3. Put the tape into the cassette compartment with its open edge to the
right and the side you want to hear facing up. The tape begins to play
and the direction indicator appears on the display.
4. Adjust ON VOL, TONE, FADER and BAL as desired.
5. Press IN /\ all the way to stop the tape and eject it.
CAUTION: We recommend you press /\ as soon as you finish playing a
tape or before you leave your vehicle, to release it from the
tape-handling parts. This reduces the possibility of a tape
being inadvertently tangled or damaged.
Notes: When the tape reaches either end while playing or fast-forwarding,
the cassette player automatically changes the tape's direction and
plays the other side of the tape. Play continues until you press /\
During play, you can switch to the other side of the cassette by
momentarily pressing << and >> at the same time until the direction
indicator on the display changes direction.
If you play a cassette tape several times, the tape can become
tight and cause distortion. To restore the correct tension, fast
forward through the entire cassette in both directions.
Fast-Forward and Rewind
To rewind or quickly fast-forward the current side, firmly press << or >>
respectively until the button locks and the tape quickly winds. Play
resumes when the end of the tape is reached.
To stop fast winding before the end of the tape, gently press and release
the opposite button. Play continues in the same direction.
Note: Fast-forward always quickly moves the tape in the same direction the
tape is currently playing, and rewind always quickly moves the tape
in the opposite direction the tape is currently playing.
Listening to the Radio During Fast-Forward or Rewind
During fast-forward and rewind you can listen to the radio.
The radio is preset to play while you fast forward or rewind a tape.
However, you can turn off the radio monitor function by pressing F/C,
and turn it back on by pressing F/C again.
AM/FM Cassette Car Stereo w/22 Watts x 2 Max Power
(120-2130A) Care and Maintenance
Faxback Doc. # 60665
Your RadioShack AM/FM Cassette Car Stereo is an example of superior design
and craftsmanship. The following suggestions will help you care for your
car stereo so you can enjoy it for years.
Keep the stereo dry. If it gets wet, wipe it dry immediately. Liquids
might contain minerals that can corrode the electronic circuits.
Use and store the stereo only in normal temperature environments.
Temperature extremes can shorten the life of electronic devices, and
distort or melt plastic parts.
Keep the stereo away from dust and dirt, which can cause premature wear
of parts.
Handle the stereo gently and carefully. Dropping it can damage circuit
boards and cases and can cause the stereo to work improperly.
Wipe the stereo with a damp cloth occasionally to keep it looking new.
Do not use harsh chemicals, cleaning solvents, or strong detergents to
clean the stereo.
Modifying or tampering with the stereo's internal components can cause a
malfunction and might invalidate its warranty and void your FCC
authorization to operate it. If your stereo is not performing as it
should, take it to your local RadioShack store for assistance.
The FCC Wants You To Know
Your stereo might cause TV or radio interference even when it is operating
properly. To determine whether your stereo is causing the interference,
turn off your stereo. If the interference goes away, your stereo is
causing it. Try to eliminate the interference by:
Moving your stereo away from the receiver.
Contacting your local RadioShack store for help.
If you cannot eliminate the interference, the FCC requires that you stop
using your stereo.
Cleaning The Tape-Handling Parts
Clean the tape head after about every 20 hours of playing time. Insert a
special head-cleaning cassette, and follow the cassette's direction to
clean the tape head. Your local RadioShack store offers a variety of
cassette player head cleaners.
Restoring Tape Tension And Sound Quality
After you play a cassette tape a few 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 turn the tape over and completely fast-forward
through the other side. 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.
Replacing A Fuse
If the stereo does not operate properly, you might need to replace the red
power wire's fuse with the supplied spare fuse.
If the clock resets or stored stations are lost when the ignition is off,
you might need to replace the yellow continuous power wire's fuse with the
supplied spare fuse.
CAUTION: Do not use a fuse with ratings other than those specified here.
Doing so might damage your stereo.
WARNING: Before you replace a fuse, disconnect the cable from the vehicle
battery's negative (-) terminal.
1. Hold the fuse holder by both ends, push the ends together, twist one
end counterclockwise, then pull them apart.
2. If the fuse is blown, replace it. Use only standard 1-1/4 x 1/4-Inch
fast-acting fuses with the proper rating. The yellow + 12V TO BATTERY
wire's fuse must be 6 amps (such as Cat. No. 270-1012), and the red
+12V TO IGNITION wire's fuse must be 0.5 amps (such as Cat. No.
270-1003).
CAUTION: The supplied fuses have the proper ratings. Make sure you
replace a fuse only with another fuse of the same ratings.
3. Push the fuse holder ends together and twist one end clockwise.
4. Reconnect the cable to the vehicle battery's negative (-) terminal.
AM/FM Cassette Car Stereo w/22 Watts x 2 Max Power
(120-2130A)
Specifications
Faxback Doc. # 60666
AM (Nominal)
Radio:
FM (Nominal)
Frequency Range: ...................... 88-108 MHz .......... 530-1710 kHz
IF Rejection: ........................... 85 dB .................... 46 dB
Image Rejection: ........................ 45 dB .................... 55 dB
Selectivity: ............................ 60 dB .................... 35 dB
Signal-to-Noise (S/N) Ratio: ............ 62 dB .................... 48 dB
Stereo Separation: ...................... 36 dB ...................... N/A
Usable Sensitivity (3% THD): ........ 3 uV (3% THD) .... 16 uV (20 dB S/N)
Cassette Player:
Cassette Mechanism: ......................................... Auto-Reverse
Wow and Flutter: .................................... Less than 0.35% WRMS
Signal-to-Noise Ratio: ............................................. 52 dB
Separation: ........................................................ 35 dB
Frequency Response (-3 dB): ................................. 70-12,000 Hz
General:
Power Source: ..................................... 12 VDC Negative Ground
Tone Control Effects: ................................. 10-22 dB at 10 kHz
Speaker Output Impedance: .................................... 4 or 8 Ohms
Output Power: ......................... 16 W X 2 Channel / 5 W X 4 channel
Chassis Size (HWD): 1-5/16 x 6-15/16 x 5-1/4 Inches (4.9 x 17.6 x 13.4 cm)
Weight: ............................................. 3 lbs 5 ozs (1.5 kg)
Specifications are typical; individual units might vary. Specifications
are subject to change and improvement without notice.
(BR EB 7/28/00)
LN-03/04
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