Optimus 12-2114, 4301-3838-0 User Manual

12-211 4.fm Page 1 Wednesday, July 14, 1999 12:35 PM

In-Dash AM/FM Stereo Cassette

Cat. No. 12-2114

OWNER’S MANUAL

Please read before using this equipment.

with Auto-Reverse

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FEATURES

Your Optimus In-Dash AM/FM Ste­reo Cassette with Auto-Reverse has
many practical, easy-to-use features,
and you can install it in almost any
vehicle. The stereo’s anti-theft face­plate is easy to remove, making the
stereo inoperative. The tuner’s digital
synthesized circuitry gives you pre­cise tuning and drift-free reception.

The auto-reverse cassette deck,
memory tuning, and seek tuning all
make your stereo’s operation simple
and quick to help you drive safely.

Caution:

not change you r stereo’s settings in
heavy traffic or during hazardous
driving conditions.

This stereo’s features include:

Anti-Theft Faceplate

quickly remove and store the ste­reo’s faceplate in the supplied carry
case. This discourages theft be­cause the stereo cannot operate
without the faceplate.

Auto-Reverse

tape play.

Lockin

— let you quickly move t he tape for­ward and backward.

Use common sense. Do

— lets you

— allows continu ous

Fast- For w ard an d R ew in d

Advanced FM Tunin

— automa tically changes FM rec ep­tion on weak stations from stereo to
mono, to improve reception of those
stations.

FM Si

cally adjusts the tuner’s stereo sepa­ration and high-frequency response
to give you the best possible sound,
regardless of the signal level.

Eas
pla

see the clock/radio/cassette deck’s
current functions.

Band Butt on

lect one of the stereo’s AM or FM
bands.

Seek Tuni n

backward to the next strong station in
the selected band. Thi s makes find­ing a station quick and easy.

Memor

store and tune up to 30 of your favor­ite stations (12 AM and 18 FM).

Memor

stations stored in a selected memory
group, playing each for 5 seconds.

nal Enhancer

-to-See Liquid Crystal Dis-

with Clock

— lets you easily se-

— searches forward or

Tuning

Scan Tuni n

Adjustment

— automati-

— lets you easily

— lets you quickly

— scans all

© 1998 Tandy Corporation.

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

2

All Rights Reserved.

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Tone and Balance Controls — let
you adjust high and low sounds and
the balance between the left and
right speakers, so you can tailor the
sound to suit your preferences.

Digital Synthesized Circuitry

gives you precise tuning and drift­free reception.

We recommend you record your ste­reo’s serial number here. The num­ber is on the top cover of the stereo.

Serial Number: ________________

—

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CONTENTS

Install a tion ....... .......... ......... ................... .......... .................. .......... ......... .......... 5

Before You Begin the Installation .............................................................. 5

Preparing the Mounting Area .............................................................. 5

Routing Speaker Wires ....................................................................... 5

Making the Connections ............................................................................ 5

Using an Adapter Harness .................................................................. 7

Connecting Ground, Power, and Optional Components ..................... 7

Connecting Speakers .......................................................................... 8

Connecting the Antenna ..................................................................... 8

Completing the Connections ............. ....... ....... ....... .......... .. ....... .......... 8

Testing the Connections ............................................................................ 9

Mounting the Stereo .................................................................................. 9

Removing the Stereo from the Dash ........................................................ 11

the Faceplate...................................................................................... 12

Usin

Installing the Faceplate ............................................................................ 12

Removing the Faceplate .......................................................................... 12

Basic Operation ........................................................................................... 13

Turning the Stereo On and Off ................................................................ 13

Setting the Clock ..................................................................................... 13

Adjusting the Sound/Tuning .....................................................................13

Radio Operation ........................................................................................... 15

Playing the Radio .................................................................................... 15

Memory Tuning ........................................................................................ 15

Automatically Storing Stations .......................................................... 16

Manually Storing Stations ................................................................. 16

Selecting a Stored Station ................................................................. 17

Scanning Stored Stations ................................................................. 17

Cassette Pla

Playing a Cassette ................................................................................... 18

Care and Maintenance ................................................................................. 20

The FCC Wants You to Know .................................................................. 20

Cleaning the Tape-Handling Parts ................................................. ....... ... 21

Restoring Tape Tension and Sound Quality ............................................ 21

Replacing a Fuse ..................................................................................... 21

Specifications ............................................................................................... 23

4

er Operation .......................................................................... 18

Fast-Forward and Rewind ................................................................. 19

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INSTALLATION

BEFORE YOU BEGIN
THE INSTALLATION

Before you install your s tereo, read
all the instructions in this owner’s
manual. You should be able to an­swer all of these questions about
your vehicle’s electrical and sound
systems:

• 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 conn ect 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 p ower, optional compo­nents, and your speakers. Then test
the connections, disco nnect the ste­reo, mount it in your ve hicle, and re­connect it. The instructions in this
manual are arranged in this order.

fits your vehicle’s mounting area.
This autosound stereo system is a
DIN-E size unit that requires a 2
inch high by 7
inch deep (52 ¥ 182 ¥ 170 mm)
mounting area.

Note:

large, you might be able to mount
the stereo with an in-dash installa­tion kit, available at your local Ra­dioShack store. Follow the in­stallation kit’s instructions to mount
the stereo.

Caution:

tions behind the mounting surface.

If the mounting area is too

3

/16-inch wide by 611/16-

Be sure to avoid obstruc-

1

/16-

Routing Sp eake r Wi res

If you install speakers, avoid routing
the speaker wires near mo ving parts
or sharp edges. You can usually
route them along the wiring channel
beneath the vehicle’s door facings
by carefully removing the molding
that holds the carpet in place. After
you route the speaker wi res, repl ace
the molding.

MAKING THE
CONNECTIONS

Preparing the Mounting
Area

Before you m ount the stereo, make
sure you have all the necessary ma­terials. Then confirm that the stereo

The supplied harness with the 14-pin
connector includes all the lead wires
you need to connect the stereo to
ground, power, some op tional com­ponents, and speakers.

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Important: Do not cut these wires. If
you cut any wire, you cannot obtain a
refund or exchange on this product.
However, your local RadioShack

will

store

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 loca l 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’s nega­tive (–) battery terminal before
you begin.

described in the following sec­tions before you plug the har­ness with the 14-pin connector
into the stereo. If you do not
make connections in the order
shown, damage to the stereo is
possible if any wire conne ctions
are made incorrectly.

• 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.

Note: The wires in the wiring har­ness have the following colors and
labels.

White

SPEAKER RIGHT

Whit e/ Black

• Be sure your speakers can han­dle 8 watts of power (4 watts per
channel). Each speaker must
have an impedance of at least 4
ohms. Your local RadioShack
store carries a full line o f speak ­ers.

• You must connect the

POWER LEAD (B+)

(–)

,

CLOCK MEMORY

GROUND

, and

wires first, then

make all other connections as

6

SPEAKER
LEFT

Wire
Harness

Black

Red
Blue/

White

Yellow

Gray

Gray/Black

GROUND (–)

POWER LEAD (B+)

AMP REMOTE TURN ON

500 MA MAX

CLOCK MEMORY

s

a

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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 ab le 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 ground, power, optional
components, and speakers. Then go
to “Connecting the Antenna” on
Page 9.

Connecting Ground, Power,
and Optional Components

Follow these steps to connect the
supplied harness with the 14-pin
connector to ground, primary and
memory backup power, and optional
components.

GROUND (–)

Black

Black

Red

Red

Blue/White

Blue/White

Yellow

Yellow

1. Disconnect the cable from your
vehicle’s negative (
minal.

GROUND (-)

POWER LEAD B+

POWER LEAD (B+)

AMP REMOTE TURN ON

AMP REMOTE TURN ON

CLOCK MEMORY

CLOCK MEMORY

(To Chassis

(To Chassi

Ground)

Ground)

(To ACC)

(To ACC)

(To Option

(To Optional

Equipmen

Equipment)

(To Battery

(To Battery +)

–

) battery ter-

2. Connect the black

GROUND (–)

wire to a chassis ground, such
as a metal screw at tached to a
metal part of the vehicle’s frame.
Be sure that the screw is not
insulated from the chassis b y a
plastic part.

3. Connect the red

(B+)

wire (with in-line filter and

POWER LEAD

fuse holder) to a point in your
vehicle’s fuse block that has
power only when you turn the
vehicle’s ke y 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.

4. Connect the yellow

MEMORY

wire (with in-line fuse
holder) to your vehicle battery’s
positive (+) terminal or to a point
in your vehicle’s fuse block that
provides a continuous source of
12 volts.

This connection provides contin­uous power for the stereo’s

CLOCK

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memory and clock display when the ignition is turned off.

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5. Cut the loop at the end of the
blue/white

ON

wire, strip about 1/2 inch of

AMP REMOTE TURN

insulation from its end, then con­nect it 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 its bare
wire ends touch metal.

Connecting Speakers

1. Connect the gray wire to the
right speaker’s positive termi­nal. This terminal is usually
marked with a plus (+) sign or
red mark.

Connecting the Antenna

Connect the vehicle’s antenna c able
to the antenna jack on the back of the
stereo.

Back of Stereo

Antenna
Connector

Vehicle’s Antenna Cable

'

Completing the
Connections

Make sure you have securel y made
all other connections, then plug the
harness’ connector into the stereo’s
14-pin wiring socket. Reconnec t the
cable to the vehicle’s negative (–)
batte r y te rmin al.

2. Connect the gray/black 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.

3. Connect the white wire to the left
speaker’s positive terminal.

4. Connect the white/black wire to
the left speaker’s negative termi­nal.

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TESTING THE
CONNECTIONS

Turn on your vehicle’s ignition and
install your stereo’s faceplate (see
“Installing the Faceplate” on
Page 13). The stereo’s d isplay lights
and the last station you tuned ap­pears after about 5 seconds.

If the stereo does not work,

ately disconnect the cable from
your vehicle’s negative (–) battery
terminal.

nections.
After you verify that the display lights

and the clock app ears, follow the in­structions in “Mounting the Stereo.”

Then recheck your con-

immedi-

MOUNTING THE
STEREO

Be sure you verify that the stereo is
connected properly (see “Testing the
Connections” on Page 10). Then fol­low these steps to mount the stereo.

2. Disconnect the wire harness and
the antenna.

REL

3. Press
side of the f aceplate to remove
the faceplate, then snap the
plastic collar off of the front of
the stereo.

Plastic Collar

REL

4. Insert both of the supp lied keys
into the slots at the middle left
and right sides of the sleeve until
they lock into place, and slide
the sleeve off of the stereo.

(release) on the left

1. Make sure the ignition is turned
off, then disconnect the cable
from your vehicle’s negative (
battery terminal.

10

–

)

12-211 4.fm Page 11 Wedn e sday, July 1 4, 1999 12:35 PM

5. Insert the sleeve into the dash
and bend out all the side tabs
with a screwdriver to secure the
sleeve.

6. Reconnect the wire harnes s and
the antenna.

7. Slide the stereo into the sleeve
until it locks into place.

If you are securing the stereo to
an existing mou nting hole in the
dash, push the mounting bolt
(covered by the mounting grom­met) through the existing mount­ing hole and make sure it is
secure. If the mounting bolt is
too short, attach the supplied
mounting bolt extension to it.

8. Otherwise, you can us e the s up­plied hardware to attach one
end of the s upplied metal strap
to the bolt on the back of the ste­reo. If necessary, bend the metal
strap to fit your vehicle’s mount­ing area. Then attach the other
end of the strap t o a solid metal
part of the vehicle. This strap
also helps ensure proper electri­cal grounding of the stereo.

9. Snap the plastic collar onto the
front of the stereo.

10. Reconnect the cable to the vehi­cle’s negative (–) battery termi­nal.

Then install the stereo’s
faceplate (see “Installing the
Faceplate” on Page 13).

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REMOVING THE
STEREO FROM THE
DASH

If you ever want to remove the stereo
from the dash, follow these steps.

1. Disconnect the cable from your

–

vehicle’s negative (
minal.

2. If you secured the stereo to an
existing mounting hole under the
dash, slide out the s tereo to f ree
the mounting bolt from the
mounting hole.

Or, remove the bolt holding the
metal strap to the back of the
stereo.

) battery ter-

5. Insert both of the supp lied keys
into the slots at the middle left
and right sides of the sleeve,
press the keys inward until they
lock into place, then slide the
stereo out of the dash.

6. Disconnect the wire harness and
the antenna.

7. Reconnect the cable to the v ehi­cle’s negative (–) battery termi­nal.

3. Press
reo’s faceplate.

4. Snap the plastic collar off of the
front of the stereo.

12

REL

to remove the ste-

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USING THE FAC EPL AT E

The stereo’s faceplate must be in
place for the stereo to operate. When
you remove it, the display turns off
and the stereo can not be u sed. This
is a simple but effective security
measure.

Any stored stations remain in memo­ry when the faceplate is removed.

INSTALLING THE
FACEPLATE

Caution:

play or pressing any buttons while in­stalling the faceplate.

1. Insert the right edge of the face-

Avoid pushing on the dis-

plate into the right edge of the
recess. The slot in the facepla te
interlocks with the tab in the
recess.

REMOVING THE
FACEPLATE

1. Press

REL

2. Remove the faceplate, then

REL

. You hear a click a nd

the faceplate swings out.

store it in the supplied carry
case.

2. Gently push the left edge of the
faceplate into the recess until
you hear a click.

Caution:

necting pins clean, do not touch the
connecting pins in the recess or on
the back of the faceplate.

To keep the metal con-

13

g

F/C

ASM

BAND

1

4

TUNE

SEEK

PWR.

VOL.

REL

BALANCE

TONE

STEREO CASSE

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BASIC OPERATION

TURNING THE STEREO
ON AND OFF

1

4

F/C

STEREO CASSE

1

4

PWR./

coun-

PWR./

, repeat-

To turn on the stereo, turn

VOL.

clockwise until it clicks. To turn

off the stereo, turn

PWR./V OL.

terclockwise until it clicks.

TONE

BALANCE

PWR.

VOL.

REL

TUNE

SEEK

STEREO CASSE

F/C

ASM

BAND

SETTING THE CLOCK

: You can set the clock only

Note

when the vehicle’s ignition is turned
on or set to ACC.

1. If the stereo is off, turn

VOL.

clockwise to turn it on.

Note:

shows the clock. If necessary,
hold down
until the clock display appears.

2. While holding down
edly press
reo displays the correct hour. (To
quickly advance the hour, hold
down

The display normally

F/C

(frequency/clock)

TUNE

PWR.

REL

TUNE

SEEK

TUNE t

.)

t

BALANCE

VOL.

until the ste-

TONE

F/C

ASM

BAND

F/C

3. While holding down
edly press

TUNE s

, repeat-

until the ste­reo displays the correct minute.
(To quickly advance the minute,
hold down

TUNE

.)

s

4. When the display shows the
correct hour and minute,
release

F/C

.

ADJUSTING THE
SOUND/TUNING

When you listen to your stereo, ad­just these controls to suit your listen­ing preferences and tune the stereo.

TONE

PWR.

REL

PWR./VOL.

crease or counterclockwise to de­crease the volume.

Warnin

do not listen at high volume levels.
Slowly increase the volume to a com­fortable lis t en ing level.

BALANCE

VOL.

TUNE

SEEK

F/C

ASM

BAND

STEREO CASSETTE RECEIVER

123

456

— turn clockwise to in-

To protect your hearing,

:

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BALANCE

— rotate to adjust the bal­ance between the right and left
speakers.

TONE

— rotate to increase or de-

crease high sounds.

BAND

— press to select the desired

band and memory group.

ASM

— hold down to automatically
scan and store the next six strong
stations in the selected band, or
press to scan all stations st ored in a
selected memory group (see “Memo­ry Tuning” on Page 16).

F/C

— press to display the current

frequency or the clock.

TUNE t

TUNE s

or

— repeatedly press
to tune down or up to the next station
in the selected band (see “Playing
the Radio” on Page 16).

SEEK s

or

SEEK t

— press to auto­matically tune to the next lower or
higher station with a strong signal
(see “Playing the Radio” on
Page 16).

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RADIO OPERATION

PLAYING THE RADIO

1. If the stereo is off, turn

VOL.

clockwise until it clicks to
turn it on. The radio automati­cally tunes to the last station
selected.

TONE

REL

TUNE

SEEK

BAND

BALANCE

VOL.

F/C

ASM

BAND

to select the

AM 1

PWR.

2. Press
desired band.
appears when an AM band is
selected.

FM 1, FM 2

appears when an FM band is
selected.

TONE

PWR.

BALANCE

VOL.

REL

TUNE

SEEK

F/C

ASM

BAND

3. Tune to the desired station in
one of the following ways.

PWR./

STEREO CASSE

1

4

or AM

, or FM

STEREO CASSE

1

4

4. Adjust
and

PWR./VOL., BALANCE

TONE

as desired.

Notes:

ST

appears when an FM signal

•
is received in stereo.

BAND

• Each time you press

, the
radio tunes to the last station
selected in the band.

• To temporarily display the fre­quency, press

)

clock

. The display shows the

F/C

(frequency/

frequency for 5 seconds, then
returns to the clock display.

2

3

MEMORY TUNING

You can manually store up to 12 AM
and 18 FM stations in memory
groups. Each mem ory group (AM 1,
AM 2, FM 1, FM 2, and FM 3) holds
up to six stat ions. Or, you can a uto­matically store the first 6 strong sta­tions in a band into a m emory group
for that band.

Repeatedly

or

:

TUNE

to tune

s

Manual Tunin

TUNE t

press
down or up to the desired sta­tion.

Seek Tunin

SEEK

or

s

Hold down

:

for about 1 second to

t

SEEK

automatically tune to the next
higher or lower station with a
strong signal.

16

12-211 4.fm Page 17 Wedn e sday, July 1 4, 1999 12:35 PM

Automatically Storing
Stations

ASM

BALANCE

BAND

until the

(automatic

LOC

TONE

1. Repeatedly press
stereo displays the band and
memory group where you want
to store a group of stations. For
example, to store the first group
of AM stations into AM 1, press

BAND

until AM 1 appears.

2. Tune to the station just before
the first station you want to
store.

3. Hold down
memory scan) for about 3 sec­onds. The stereo displays
scans the selected band, and
automatically stores the first 6
strong stations it finds, starting
with the desired station.

PWR.

4. To stop searching for stations
before all stations are stored,

ASM

press

again.

Manually Storing Stations

until

BAND

FM2

until the

appears.

1. Repeatedly press
stereo displays the band and
memory group where you want
to store a station. For example,
to store FM stations into FM 2,

BAND

press

2. Tune to the station you want to
store.

,

3. Hold down the desired memory
location button until the band
number, the frequency, and the
memory location number appear
on the display for about 5 sec­onds. The volume briefly mutes
then returns to normal. The sta­tion is stored.

VOL.

REL

TUNE

SEEK

ASM

BAND

STEREO CASSE

F/C

1

4

The band number, frequency,
and memory location number
appear on the display when the
station is stored. After all 6 sta­tions are stored, the stereo
tunes to the first station and
begins to play.

: If the stereo coul d not find

Note

6 stations, it scans again,
searching for weaker stations,

LOC

and

disappears.

TONE

SEEK

TUNE

BALANCE

VOL.

F/C

ASM

BAND

Memory Location

Buttons

STEREO CASSETTE RECEIVER

123

456

PWR.

REL

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Selecting a Stored Station

To select a station, repeatedly press

BAND

to select the desired memory
group, then press the desired memo­ry location button.

: Do not hold down the m em ory

Note

location button. This stores the cur­rently tuned station into that location.

Scanning Stored Stations

The radio can scan all stored sta­tions in the selected memory group,
pausing for about 5 seconds at each
station. The radio can a lso scan all
stored stations in all memory groups.

To start scanning stations, repeated­ly press

BAND

to select the desired
memory group. The radio scans all
stored stations in all memory groups.
Then, when you press

ASM

, the ra­dio scans all stored stations in the
selected memory group.

Important

: Do not hold down

ASM

This causes the stereo to automati­cally seek and store station s into the
selected memory group.

As the stereo scans each memory
location in the selected memory
group, the current memory location
number flashes.

To stop scanning when the radio
pauses at a station you want to listen
to, press

ASM

again.

18

.

O

12-211 4.fm Page 19 Wedn e sday, July 1 4, 1999 12:35 PM

CASSETTE PLAYER OPERATION

PLAYING A CASSETTE

Caution:

sette 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 t he

2. If the stereo is off, turn

3. Insert the tape into the cassette

Avoid using C-120 cas-

cassette’s hub with your finger
or a pencil. (Avoid touching the
tape.)

PWR./

VOL.

clockwise until it clicks to

turn it on.

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.

TONE

BALANCE

PWR.

VOL.

F/C

ASM

BAND

STEREO CASSETTE RECEIVER

123

456

PLL SYNTHESIZER

AUTO REVERSE

REL

TUNE

SEEK

5. Press all the way in to stop
the tape and eject it. The radio
plays.

NE

STEREO CASSETTE RECEIVER

123

456

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 th e end,
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 ca ssette by
pressing and at the same
time s o the arro w on th e di spla y
changes direction.

TE RECEIVER

3

4. Adjust

TONE

VOLUME, BALANCE

as desired.

and

6

19

12-211 4.fm Page 20 Wedn e sday, July 1 4, 1999 12:35 PM

Fast-Forward and Rewind

To fast-forward or rewind the current
side, press or depending on
which side of the tape is playing. The
tape quickly winds. Play resumes
when the end of the tape side is
reached or when you briefly press

.

STEREO CASSETTE RECEIVER

123

456

To stop fast forward or rewind before
the end of the tape, gently press and
release the opposite button ( or )
or . Play continues.

20

12-211 4.fm Page 21 Wedn e sday, July 1 4, 1999 12:35 PM

CARE AND MAINTENANCE

Your Optimus In-Dash AM/FM Stereo Cassette with Auto-Reverse is an example
of superior design and craftsmans hip. The following suggestions will help you
care for your stereo so you can enjoy it for years.

Keep the stereo and faceplate dry. If either gets wet, wipe it dry
immediately. Liquids m ight cont ain mine rals t hat can c orrode the
electronic circuits.

Keep the stereo and faceplate away from dust and dirt, which can
cause premature wear of parts.

Handle the stereo and faceplate gently and carefully. Dropping ei­ther 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, invalidate your stereo’s 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 of f your
stereo. If the interference goes away, your s tereo is causing it. Try to eliminate
the interference by:

• Moving your receiver away from the stereo

• Contacting your local RadioShack store for help

If you cannot eliminate the interferen ce, the FCC requires that you stop using
your stereo.

21

12-211 4.fm Page 22 Wedn e sday, July 1 4, 1999 12:35 PM

CLEANING THE TAPE­HANDLING PARTS

Clean the tape head after about ev­ery 20 hours of playing time. Insert a
special head-cleaning cassette (such
as Cat. No. 44-1202), and follow the
cassette’s directions to clean the
tape head.

RESTORING TAPE
TENSION AND SOUND
QUALITY

After you play a cassette t ape 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, fast­forward the tape from the beginning
to the end of one side, then rewind it.
Then loosen the tape reels by gently
tapping each side of the cassette’s
outer shell on a flat surface.

REPLACING A FUSE

If the stereo does not operate, you
might need to replace the

LEAD (B+)

with the supplied spare fuse (Cat.
No. 270-1009). If the clock resets or
stored stations are lost when the igni­tion is off, you might need to replace
the

1

1

/4-inch fuse with the supplied spare

fuse (Cat. No. 270-1003).

Caution:

ings other than those specif ied h ere.
Doing so might damage your stereo.

Follow these steps to replace either
of your stereo’s fuses.

1. Disconnect the cable from your

wire’s 3-amp 11/4-inch fuse

CLOCK MEMORY

Do not use a fuse with rat-

vehicle’s negative (
minal.

wire’s 0.5-amp

POWER

–

) battery ter-

Caution:

the cassette when tapping it. Do not
touch the exposed tape or allow any
sharp objects near the cassette.

22

Be careful not to da mage

2. To open the fuse holder, push
together then twist the fuse
holder’s parts until they spring
apart. Then remove the fuse.

12-211 4.fm Page 23 Wedn e sday, July 1 4, 1999 12:35 PM

3. If the fuse is blown, replace it.
Use only standard 1

1

/4-inch

fuses with the proper rating. The

POWER LEAD (B+)

must be 3 amps. The

MEMORY

wire’s fuse must be 0.5

wire’s fuse

CLOCK

amps.

4. Reassemble the fuse holder by
inserting the fuse and pushing
together and twisting the two
parts until they latch.

5. Reconnect the cable t o the v ehi­cle’s negative (–) battery termi­nal.

6. Reset your stereo’s clock and
memory settings as well as
other vehicle accessories.

23

12-211 4.fm Page 24 Wedn e sday, July 1 4, 1999 12:35 PM

SPECIFICATIONS

RADIO

FM (Nominal) AM (Nominal)

Frequency Range 88–108 MHz 530–1710 kHz
IF Rejection 75 dB 50 dB
Image Rejection 44 dB 55 dB
Selectivity 60 dB 35 dB
Signal-to-Noise (S/N) Ratio 65 dB 48 dB
Stereo Separation 36 dB
Usable Sensitivity 3.0 mV (3% THD) 10 mV (20 dB S/N)

CASSETTE PLAYER

Cassette Mechanism .................................................................... Auto Reverse

Wow and Flutter .......................................................... Less than 0.15% WRMS

Signal-to-Noise Ratio ................................................................................ 48 dB

Separation . ................................................................................................ 35 dB

Frequency Response (–3 dB) ...................................................... 125–8,000 Hz

—

GENERAL

Power Source ............................................................ 12V DC Negative Ground

Speaker Output Impedance ................................................. 4 Ohm s or 8 Ohms

Maximum Power ....................................................................... 7 Watts/Channel

Power Output (10% THD @ 1 kHz) ....................... .... ..... . 4 Watts RMS/Channel

Chassis Size (HWD) ...................................................... 1

Weight ........................................................................................................ 3 lbs

Specifications are typical; individual units might vary. Specifications are subject
to change and improvement without notice.

15

/16 ¥ 7 ¥ 515/16 Inches

(50 ¥ 178 ¥ 151 mm)

(1.3 kg)

24

g

g

g

g

g

g

g

g

g

g

g

12-211 4.fm Page 25 Wedn e sday, July 1 4, 1999 12:35 PM

Limited One-Year Warranty

This product is warrant ed by RadioShac k against manufacturing defects in materia l and workman­ship under normal use for one (1) year from the date of purchase from RadioShack company-owned
stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra­dioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING
THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED
IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED
HEREIN. EXCEPT AS PROVI DED HEREIN, Rad ioShack SH ALL HAVE NO LIABILIT Y OR RE­SPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY
LIABILITY, LOSS OR DAMAGE CA USED DIRECTLY OR INDIRECTLY BY USE OR PERFOR­MANCE OF THE PRODUCT OR ARI SING OUT OF ANY BREACH OF THIS WARRANTY, IN­CLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS
OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDEN­TAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how lon
cidental or consequential dama
In the event of a product defect durin
sales receipt as proof of pur cha se date to any RadioS hack s tore. Radi oSha ck wil l, at its option, un­less otherwise provided by law: (a) correct the defect by product repair without char
labor; (b) replace the produc t with one of the same or similar desi
price. All replaced parts and pr oducts, and pro ducts on which a refund is made, become the prop­erty of RadioShack. New or rec onditioned parts and products may be used in the performance of
warranty service. Repa ired or replaced parts and produ cts are warranted for the remainder of the
ori

inal warranty period. You will be charged for repair or replacement of the product made after the
expiration of the warranty period.
This warranty does not cover: (a) dama
accident, misuse, impr oper or abnormal usa
maintenance, al teration, li
other than those provi ded by a RadioShack Autho rized Service Facility; ( c) consumables such as
fuses or batteries; (d) cos meti c dama
of product removal, installation, set-up service adjustment or reinstallation.
This warranty
state to state.

RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102

ives you specific legal rights, and you may also have other rights which vary from

es, so the above limitations or exclusions may not apply to you.

the warran ty perio d, take the produ ct and the Rad ioShack

e or failure caused by or attributable to acts of God, abuse,

htning or other incidence of excess voltage or current; (b) any repair s

e; (e) transportatio n, shippi ng or insurance costs; or ( f) costs

We Service What We Sell

an implied warranty lasts or the exclusion of in-

e for parts and

n; or (c) refund the p urchase

e, failure to follow instruct ions, improper instal lation or

3/97

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

P/N: 4301-3838-0

5A8 Printed in China