Optimus 12-2154, 12-2155 User Manual

12-215 4.fm Page 1 Wednesday, Ju ly 14, 1999 3: 34 PM

with Favorite Sound Memory (12-2155)

Cat. No. 12-2154/2155

OWNER’S MANUAL

Please read before using this equipment.

High-Power In-Dash

AM/FM Stereo CD Player

with Loud Feature (12-2154)

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FEATURES

Your Optimus High-Power In-Dash
AM/FM Stereo CD Player has many
practical, easy-to-use features, and
you can install it in almost any vehicle.
The stereo’s anti-theft control panel
lets you quickly remove it, making the
stereo inoperative. The auto travel
programming feature lets you store
strong local stations into a separate
travel memory.

Memory tuning, seek and scan tuning,
and FM optimizer circuitry all help
make your stereo’s operation simple
and quick to help you drive safely.

Caution:

change your stereo’s settings in heavy
traffic or during hazardous driving con­ditions.

Please Note:

contains instructions for both Cat. No.
12-2154 and 12-2155 stereos. (You
can find the Cat. No. of your model on
the top of the stereo.) 12-2154 has a

LOUD
FSM

all illustrati o ns in this manual show the
Cat. No. 12-2155 stereo.

Use common sense. Do not

This Owner’s Manual

button while 12-2155 has an

button. Unless otherwise noted,

CD PLAYER

Audible Search

play a CD in either direction to locat e
a desired section of a track.

Intro Scan

first 10 seconds of each tr ack, so you
can find a specific track.

Shuffle Pla

plays tracks from the loaded CD.

Repeat Pla

the current track.

— lets you rapidly

— scans and plays the

— ran do m ly s e lec t s and

— automatically repeats

AM/FM STEREO TUNER

Band Button

one of the stereo’s AM or FM bands.

Memor

stations stored in memory, pla ying for
5 seconds on each.

Memor

store and tune up to 18 of your favor­ite stations (6 AM and 12 FM).

Auto Travel Pro

you automatically store the first 6
strong stations in each band (AM and
FM) into a separate travel memory so
you can quickly find local stations
while traveling.

— lets you easily s ele ct

Scan Tuning

Tuning

— lets you quickly

— scans all

rammin

— lets

© 1997, 1998 Tandy Corporation.

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

2

All Rights Reserv ed .

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Seek Tuning — searches forward or
backward to the next st rong station in
the selected band. This makes finding
a station quick and easy.

Digital Synthesized Circuitry —

gives you precise tunin g and drift-free

reception.

Advanced FM Optimizer Circuitry

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

GENERAL

Electronic Bass, T reble, Fader, and
Balance Controls — let you easily

adjust high and low sounds and the
balance between the left/right and
front/rear speakers, so you can tailor
the sound to suit your preferences.

Anti-The ft Control P anel — lets you
quickly remove and store the stereo’s
control panel in the supplied carry
case. This discourages theft bec ause
the stereo cannot opera te without the
control panel.

Lighted On/Off Button — makes it
easy to turn on your stereo, even
when you drive at night.

Line-Out Jacks — make it easy to
connect a booster.

Loudness Button (12-2154 only) —

lets you increase the low range of

sounds at low volume levels.

Favorite Sound Memories (FSM)
(12-2155 only) — let you store cur-

rent volume, bass, treble, balance,
and fader settings, then have your ste­reo return to those settings by press ­ing a single button.

We recommend you record your ste­reo’s serial number here. T he num ber
is on the top panel of the stereo.

Serial Number: _________________

The CD player in this stereo system is
made and tested to meet exacting
safety standards. It meets FCC re­quirements and complies with safety
performance standards of the U.S.
Department of Health and Human
Services.

Warnings:

• This system employs a la ser light
beam. Only a qualified service
person should remove the cover
or attempt to service this device,
due to possible eye injury.

Easy to See Liquid Crys tal Display

— helps you see the display in all
lighting conditions. The 12 -2154’s dis­play is amber, and the 12-2155’s dis­play is green.

• The use of controls, adjustments,
or procedures other than those
specified herein might result in
hazardous radiation exposure.

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CONTENTS

Installation ............................................................................................................ 6

Before You Begin the Installation .................................................................... 6

Preparing the Mounting Area .................................................................... 6

Routing Speaker Wires ............................................................................. 6

Removing the Shipping Screw .................................................................. 6

Making the Connections .................................................................................. 7

Using an Adapter Harness ........................................................................ 8

Connecting Ground, Power, and Optional Components ........................... 8

Connecting an Equalizer/Booster . ............................................................ 9

Connecting Two Pairs of Speakers ........................................................... 9

Connecting One Pair of Speakers .......................................................... 10

Connecting the Antenna . ........................................................................ 11

Completing the Connections ................................................................... 11

Tes ting the Connections ................................................................................ 11

Mounting the Stereo ...................................................................................... 12

Removing the Stereo from the Dash ............................................................. 14

the Control Panel .................................................................................... 15

Usin

Installing the Control Panel ............................................................................ 15

Removing the Control Panel .......................................................................... 15

Basic Operation ................................................................................................. 16

Turning the Stereo On and Off ...................................................................... 16

Setting the Clock ........................................................................................... 16

Adjusting the Sound ...................................................................................... 17

Favorite Sound Memory (12-2155 Only) ....................................................... 17

Displaying the Clock ...................................................................................... 18

Turning the Key Tone On and Off .................................................................. 18

Radio Operation ................................................................................................. 19

Playing the Radio .......................................................................................... 19

Memory Tuning .............................................................................................. 19

Storing Stations ....................................................................................... 20

Storing Stations in Automatic Travel Programming Memory .................. 20

Selecting a Stored Station ...................................................................... 20

Scanning Stored Stations ....................................................................... 21

CD Pla

4

er Operation .......................................................................................... 22

Playing a CD .................................................................................................. 22

Selecting a Track ........................................................................................... 23

Audible Search .............................................................................................. 23

Shuffle Play ................................................................................................... 23

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Repeat Play .................................................................................................. 24

Scanning the Tracks ..................................................................................... 24

Switching Between the CD and the Radio .................................................... 24

Troubleshooting ................................................................................................ 25

Resetting the Stereo .................................................................................... 26

Care and Maintenance ...................................................................................... 27

The FCC Wants You to Know ....................................................................... 27

CD Care Tips ................................................................................................ 28

Replacing a Fuse .......................................................................................... 28

Replacing the Red Power Wire’s Fuse ................................................... 28

Replacing the Blade-Type Fuse ............................................................. 29

Specifications .................................................................................................... 30

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INSTALLATION

BEFORE YOU BEGIN
THE INSTALLATION

Before you install your stereo, 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 connect a wire to the
fuse box?

1

/2-inch wide by 71/4-inch deep (57 ¥

7
190 ¥ 186 mm) mounting area.

Note:

large, you might be ab le 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.

Cautions:

If the mounting area is too

• Make sure the stereo will not tilt
up more than 30 degrees when it
is mounted.

• Be sure to avoid obstructions be­hind the mounting surface.

Also, be aware that installation in your
vehicle might require cutting or m odi­fying your vehicle.

Place the stereo as close as poss ible
to the selected mounting location. We
recommend that you install the stereo
by temporarily connecting it to ground
and power, optional com ponents, and
your speakers. Then test t he connec­tions, disconnect the stereo, mount it in
your vehicle, and rec onnect it. Th e in­structions in this manual are arranged
in this order.

Preparing the Mounting Area

Before you mount the stereo, make
sure you have all the necessary mat e­rials. Then confirm that the stereo fits
your vehicle’s mounting area. Thi s au­tosound stereo system is a DIN-E size
unit that requires a 2

1

/4-inch high by

Routing Speaker Wires

If you install speakers, avoid routing
the speaker wires near moving 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 wires, replace the
molding.

Removing th e Shipping
Screw

The shipping screw helps protect the
stereo’s CD player from being dam­aged during shipment.

Before you mount the stereo, use a
Phillips screwdriver to remove the
shipping screw from the top of the ste­reo.

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(illus)

Note: Save the shipping screw in
case you ever want to mail or ship the
stereo. You can secure it to the back
of the stereo with a piece of tape.

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, some optional compo­nents, and speakers.

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 store
will provide warranty
a wire and find the product is defec­tive.

service

if you cut

Cautions:

• For added safety and to protect
your stereo, disconnect the cable
from your vehicle battery’s nega­tive (–) terminal before you begin.

• Be sure your speakers can handle
64 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.

• 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 harness with the 14­pin connector into the stereo. If
you do not make connections in
the order shown, damage to the
stereo is possible if any wire con­nections are made incorrectly.

You might need additional wire, de­pending on your individual autosound
system, to complete the connections.
Your local RadioShack sto re carries a
full line of wire a nd wire mana gement
accessories.

• 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 an y s peaker
connection.

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12-215 4.fm Page 8 Wednesday, Ju ly 14, 1999 3: 34 PM

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

(illus)

Using an Adapter Harness

If you are replacing an existing stereo,
or if your vehicle has been factory­wired for autosound components, you
might be able t o use an adapter har­ness to connect the power and speak ­ers. RadioShack stores sell adapter
harnesses for most vehicles.

Connecting Ground, Power,
and Optional Components

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

(illus)

1. Disconnect the cable from your

–

vehicle’s negative (
minal.

) battery ter-

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 11.

8

2. Connect the black ground wire to
a chassis ground, such as a metal
screw attached to a metal pa rt of
the vehicle’s frame. Be sure that
the screw is not insulated from the
chassis by a plastic part.

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3. Connect the red power 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.

4. Connect the yellow power/mem­ory wire 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 power
for the stereo’s components (such
as the CD player), and continuous
power for the stereo’s memory
when the ignition is turned off.

Connecting an Equalizer/
Booster

If you are connecting the stereo to a
separate equalizer or booster, you
need additional wires (not included).

To increase the total power output
from your system, connect the
(right) and L (left) line output jacks on
the back of the stereo and blue/white
wire, if necessary, to the equalizer or
booster.

(illus)

Check the equalizer/booster’s o w ner’s
manual for directions.

R

5. Connect the blue/white 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 s imply 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.

Connecting Two Pairs of
Speakers

If you are using both front and rear
speakers, follow these steps to con­nect the harness with the 14-pin con­nector to the speakers.

12-2154 Onl

speakers, remove the tape that ho lds
the mounting sleeve in place and slide
the sleeve off of the stereo. Then set

2CH/4CH

to

on the bottom of the stereo

4CH

.

Before connecting the

:

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Connecting One Pair of
Speakers

(illus)

1. Connect the gray wire t o the right
front speaker’s positive terminal.
This terminal is usually marked
with a plus (+) sign or red mark.

2. Connect the gray/black wire to the
right front 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
front speaker’s positive terminal.

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

5. Connect the violet wire to the right
rear speaker’s positive terminal.

For 12-2155:

pair of speakers, follow Steps 1

If you are using only one

–

4 in
“Connecting Two Pairs of Speakers”
on Page 9 to connect the harness with
the 14-pin connector to the speakers.

(illus)

For 12-2154:

If you are using only one
pair of speakers, remove the tape that
holds the mounting sleeve in place
and slide the sleeve of f of the stereo.
Then set
the stereo to

2CH/4CH

2CH

on the bottom of

. Then follow these
steps to connect the harness with the
14-pin connector to the speakers.

6. Connect the violet/black wire to
the right rear speaker’s negative
terminal.

7. Connect the green wire to the left
rear speaker’s positive terminal.

8. Connect the green/black wire to
the left rear speaker’s negative
terminal.

10

(illus)

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12-215 4.fm Page 11 Wednesday, J uly 14, 1999 3: 34 PM

1. Connect the gray wire t o the right
speaker’s positive terminal. This
termina l is usually ma rked with a
plus (+) sign or red mark.

2. Connect the violet 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 green wire to the left
speaker’s negative terminal.

Connecting the Antenna

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

(illus)

(illus showing harness
being reconnected)

TESTING THE
CONNECTIONS

Turn on your vehicle’ s ignition and in­stall your stereo’s control panel (see
“Installing the Control Panel” on
Page 15).

ON/OFF.

play light.

ON/OFF

The stereo’s buttons and dis-

lights. Then press

Completing the Connections

Make sure you have securely made all
other connections, then plug the har­ness’ connector into the stereo’s 14­pin wiring socket. Reconnect the cable
to the vehicle’s negative (–) battery
terminal.

If the stereo does not work,

atel

disconnect the cable from

our vehicle’s negative (–) batter

terminal.

tions.
After you verify that the buttons/dis-

play light, follow the instructions in
“Mounting the Stereo” on Page 12.

Caution:

testing the connections, be s ure to re­move the CD from the stereo before
continuing.

Then recheck y our connec-

If you played a CD while

immedi-

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MOUNTING THE STEREO

Be sure you verify that the stereo is
connected properly (see “Testing the
Connections” on Page 11). Then fol­low these steps to mount the stereo.

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

2. Disconnect the wire harness and
the antenna.

–

) battery

4. Remove the tape that holds the
sleeve in place and slide the
sleeve off of the stereo.

(illus)

Note:

If you have a Cat. No. 12­2154 stereo, you have already
removed the tape (while setting

2CH/4CH

). Continue with St ep 5.

5. Turn the sleeve around so the flat
tabs on the front are facing you,
then insert it into t he dash. Then
secure the sleeve to the dash by
bending out the tabs with a screw­driver. Bend out all the side tabs.

(new illus)

3. Press

RLS

on the right sid e of the
control panel to remove the con­trol panel.

(illus)

12

(illus)

6. If your vehicle has an existing
mounting hole behind the dash,
use pliers or a

5

/16-inch box-end

12-215 4.fm Page 13 Wednesday, J uly 14, 1999 3: 34 PM

wrench to attach the short e nd of t he suppl ied m ount ing bolt t o the bac k of t he

stereo.

(illus)

7. Reconnect the wire harness and
the antenna.

8. Slide the stereo into the sleeve
until it locks int o pla c e.

9. If you are securing the stereo in
an existing mounting hole in the
dash, push the supplied rubber
mounting grommet onto the
mounting bolt.

If necessary, bend the metal strap
to fit your vehicle’s mounting area.
Then use either the supplied
sheet metal screws or the other
bolt (with attached washer) to
attach the other end of the strap to
a solid metal part of the vehicle
under the dashboard. This strap
also helps ensure proper electrical
grounding of the stereo.

(illus - show bolt

(with attached

washers))

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

Then install the stereo’s
control panel (see “Installing the
Control Panel” on Page 15).

(illus - show

mounting grommet)

Then push the mounting bolt (cov­ered by the mounting grommet)
through that mounting hole and
make sure it is secure.

Otherwise, you can use one of the
supplied bolts (with attached
washer) to attach one end of the
supplied metal strap to the mount­ing hole on the back of the st ereo.

Note:

You might need to reset the
stereo’s clock after you reconnect
the cable to the vehicle battery.

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12-215 4.fm Page 14 Wednesday, J uly 14, 1999 3: 34 PM

REMOVING THE STEREO
FROM THE D A SH

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 th e stereo to free
the mounting b olt f rom t he m ount ­ing hole.

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

3. Press

RLS

to remove the stereo’s

control panel.

) battery ter-

4. Insert the supplied keys into the
slots at the left an d right sides of
the stereo. Press the k eys down­ward and slide the stereo out of
the dash.

(illus - show keys on slots)

Note:

The keys are labeled to

show their top edges.

5. Remove the keys from the slots.

6. Disconnect the wire harness and
the antenna.

7. If you are mailing or shipping the
stereo, use a Phillips screwdriver
to reinstall the shipping screw in
the top of the stereo.

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

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12-215 4.fm Page 15 Wednesday, J uly 14, 1999 3: 34 PM

USING THE CONTROL PANEL

The stereo’s control panel must be in
place for the stereo to operate. When
you remove it, the display turns off
and the stereo cannot be used. This is
a simple but effective security mea­sure.

Any stored stations remain in memory
when the control panel is removed.

INSTALLING THE
CONTROL PANEL

1. Insert the left edge of the control
panel into the left edge of the
recess. The hole in the control
panel interlocks with the tab in the
recess.

REMOVING THE
CONTROL PANEL

1. Press

(illus - show control panel swing)

2. Remove the control panel, then

RLS

. You hear a click and

the control panel swings out.

store it in the supplied carry case.

(illus)

(illus - show pin in recess hole)

2. Gently push the right edge of the
control panel into the recess until
you hear a click.

Caution:

ing pins clean, do not touch the con­necting pins in the recess or on the
back of the control panel.

To keep the metal connect-

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12-215 4.fm Page 16 Wednesday, J uly 14, 1999 3: 34 PM

BASIC OPERATION

Unless otherwise noted, all illustra­tions in this manual sh ow the Cat. No.
12-2155 stereo.

TURNING THE STEREO
ON AND OFF

To turn on the s tereo, press
The buttons and display light. To tu rn
off the stereo, press

ON/OFF

(new illus)

ON/OFF

again.

SETTING THE CLOCK

1. Press

2. While holding down

ON/OFF

reo.

repeatedly press

TRACK +

the correct hour. (To continuously
advance the hour, hold down

TUNE/SEEK TRACK +

to turn on the ste-

CLOCK

TUNE/SEEK

until the stereo displays

.)

3. While holding down
repeatedly press

TRACK –

the correct minute. (To continu­ously advance the minute, hold
down

.

Notes:

• The clock resets the s econds to 0
as soon as you stop advancing
the minute.

• You can use a watch with a sweep
second hand or other time refer­ence to set the clock to the exact
second at the beginning of an
hour. When the time reference
reaches the beginning of an hour,
hold down
The clock resets the minutes and

,

seconds to 00 and advances the
hour if the minutes were past 29.

until the stereo d isplays

TUNE/SEEK TRACK –

(illus)

CLOCK

, then press 6.

CLOCK

TUNE/SEEK

,

.)

16

(illus)

12-215 4.fm Page 17 Wednesday, J uly 14, 1999 3: 34 PM

ADJUSTING THE SOUND

When you listen to your stere o, adjust
these controls to suit your listening
preferences.

(illus)

AUDIO CONTROL SEL +/–

edly press or hold down to increase or
decrease the volume.
ume level number appear.

Warning:

not listen at high volume levels. Slowly
increase the volume to a comfortable
listening level.

AUDIO CONTROL SEL

press until
and a number appear on t he display,
then repeatedly press or hold down
or – within 5 seconds to change the
stereo’s bass, treble, balance, or fader
settings.

To protect your h earing, do

bAS, TRE, bAL, or FAd

— Repeat-

VOL

and a vol-

— Repeatedly

you adjust the fader toward the
rear speakers,
appear.

bAS, TRE, bAL

•If
number disappear before you
press

AUDIO CONTROL SEL

setting you want reappears, then
repeatedly press or hold down
or – to set it.

• To set bass, treble, balance, and
fader to their center (middle) set­tings, hold down

SEL

stereo beeps twice.

LOUD

the low ranges of sounds, repeatedly
press
off loudness, repeatedly press
until

+

+

or –, repeatedly press

for about 3 seconds until the

(12-2154 Only)

LOUD

until ON appears. To turn

OFF

appears.

R

and a number

FAd

, or

until the

AUDIO CONTROL

— To increase

(illus)

and the

+

LOUD

Notes:

• When you adjust the balance
toward the left speakers,
number appear on the display.
When you adjust the balance
toward the right speakers,
number appear.

• When you adjust the fader toward
the front speake rs,
ber appear on the display. When

L

and a

R

and a

F

and a num-

FAVORITE SOUND
MEMORY (12-2155
ONLY)

You can store your stereo’s current
volume, bass, treble, balance, and
fader settings into memory. This lets
you select the best sound for the mu­sic you listen to and save that sound,

17

12-215 4.fm Page 18 Wednesday, J uly 14, 1999 3: 34 PM

so you can recall it later. You can store two FSM (favorite sound memory) settings.

Follow these steps to store an FSM
setting.

until

blinks

FSM

FSM I

FSM

until

or

1. Repeatedly press

I

FSM II

or

2. Adjust the volume, bass, treble,
balance and fader using the infor­mation in “Adjusting the Sound”
on Page 17.

FSM I

Note:

while you adjust the controls.

3. When you finish adj usting t he ste­reo’s settings, hold down
the stereo beeps twice. This indi­cates that the settings you
entered are saved in the FSM set­ting you selected.

To select an FSM setting you sav ed,
repeatedly press

FSM II

those settings you entered in Step 2.

appears. The stereo is set to

FSM

appears.

(illus)

FSM II

or

FSM

until

CLOCK

While the radio or a CD is playing,

CLOCK

press

to display the clock.

(new illus)

T URNING THE KEY T ONE
ON AND OFF

The stereo is preset to beep when you
press most buttons. To turn the key
tone off, turn the stereo off, then hold

AT P

down
ming) and
onds until b

To tu rn the key tone back on, turn the
stereo off, then hold down
together for about 3 seconds u ntil

ON

appears.

(automatic travel program-

6

together for about 3 sec-

P

(beep)

OFF

appears.

AT P

and

bP

6

To turn off FSM, repeatedly press

FSM I

until
from the display. The stereo is set to
its default settings.

and

FSM II

FSM

disappear

DISPLAYING THE

18

(illus)

g

g

12-215 4.fm Page 19 Wednesday, J uly 14, 1999 3: 34 PM

RADIO OPERATION

PLAYING THE RADIO

1. Press
reo. The radio au tomatically tun es
to the last station and band
selected.

2. Press
band.
band is selected.
appears when an FM band is
selected.

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

ON/OFF

(add new illus)

BND

AM

to turn on the ste-

to select the desired

appears when the AM

FMI

or

(illus)

FMII

Manual Tunin

TUNE/SEEK TRACK –

press
tune down or up the selected
band.

Seek Tunin

SEEK TRACK –

second to tune to the next lower
or higher station.

4. Press

Notes:

• appears when an FM signa l

• See “Adjusting the Sound” on

AUDIO CONTROL SEL +

to increase or decrease the vol­ume as desired.

is received in stereo.

Page 17 for information about
changing the stereo’s other set­tings.

Repeatedly

:

Hold down

:

or + for about 1

(illus)

or + to

TUNE/

or

–

MEMORY TUNING

(illus)

You can manually store up to 6 AM
and 12 FM stations in memory groups.
Each memory group (AM, FMI, and
FMII) holds up to six stations. You can
also automatically store the first 6
strong AM and f irst 6 strong FM s ta­tions in a separate automatic travel
programming memory.

19

12-215 4.fm Page 20 Wednesday, J uly 14, 1999 3: 34 PM

Storing Stations

1. Repeatedly press
the desired memory group (

FMI

2. Tune to the station you want to
store.

3. Hold down the desired memory
channel button until
ory channel number, and the fre­quency flash once on the d isplay.
The s tation is stored.

(illus - callout ‘Memory Channel

, or

FMII

Buttons)

BND

to select

).

P-

, the me m -

AM

AT P

2. Hold down
programming) for about 2 sec­onds. The stereo displays

,

scans the selected band, and
automatically stores the first 6
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 it stored in auto­matic travel programming mem­ory.

(automatic travel

(illus)

ATP

,

Storing Stations in Automatic
Travel Programming Memory

The stereo can sto re the first 6 strong
AM and the first 6 strong FM stations it
finds into its automatic travel program­ming (ATP) memory. This memory is
separate from the stereo’s memory
groups, so it does not replace the sta­tions you manually stored.

1. Repeatedly press
the desired band (

FMII

).

20

BND

to select

AM, FMI

, or

If the stereo could not find

Note:

any stations,
appears on the display. Press

BND

or select another station to

listen to the radio.

3. Repeatedly press
disappears to get out of au tomat ic
travel progra mming.

P - 1 - - -

BND

until

ATP

Selecting a Stored Station

To select a station you manually
stored in AM, FMI, or FMII, repeatedly

BND

press
ory group, then press the desired
memory channel button.

to select the desired mem -

12-215 4.fm Page 21 Wednesday, J uly 14, 1999 3: 34 PM

Note: Do not hold down the mem ory
channel button. This stores the cur­rently tuned station into that location.

To select a station you automatically
stored in automatic travel program­ming memory, follow these steps:

1. Repeatedly press
the desired band (

FMII

).

ATP

2. Press

for less than 1 second

BND

to select

AM, FMI

, or

to select the desired memory sta­tion. Each time you press

ATP

, the
stereo advances to the next mem­ory channel.

Notes:

ATP

• Do not hold down

. This
causes the stereo to automati­cally scan and store the first 6
strong stations it finds into its
automatic travel programming
memory.

Scanning Stored Stations

The radio can scan a ll stored stations
in the selected band, pausing for 5
seconds at each station.

To start scanning station s you manu­ally stored, repeatedly press
select the desired memory group, then
hold down

BND

until

SCN

To scan the stations in the automatic
travel programming memory, repeat­edly press
band, press
then hold down

BND

to select the desired

ATP

so

BND

ATP

until

pears.
As the radio scans each memory

channel,

P-

and the channel number
flash and the frequency is displayed.
After scanning all memory channels,
the stereo returns to the original sta­tion.

BND

appears.

appears,

SCN

to

ap-

• If the stereo could not find a ny
strong stations,

P - x - - -

(where x is one of the stereo’s
6 channel numbers) appears for
the empty channels.

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

BND

again during the pause.

21

12-215 4.fm Page 22 Wednesday, J uly 14, 1999 3: 34 PM

CD PLAYER OPERATION

Cautions:

• Play only CDs that
have this mark on
them:

• The CD player has a wide
dynamic range. As a result, if you
turn your stereo’s volume up too
high during soft (low volume) sec­tions of a program, your speakers
might be damaged when a sud­den loud passage occurs.

• If the CD player is jolted during
play , the rotation speed might sud­denly change or the CD player
might make an unusual noise.
This is not a malfunction.

PLAYING A CD

1. Press

2. Insert a CD (label side up) in the

ON/OFF

reo.

slot. The stereo automatically
switches to CD play mode if the
radio is playing and displays

In

. Then the display shows

cd

,

starts to play from Track 1.

to turn on the ste-

TR01

, and

, and the CD

cd

played, and the CD starts to play
from the point where you last
stopped it.

(illus)

After the stereo plays the entire
CD, it automatically repeats all
tracks, start ing wit h T r a ck 1 .

3. Press

4. To pause p layback, press

5. To remove a CD from the CD

+

or – to increase or

decrease the volume as desired.

See “Adjusting the Sound”

Note:

on Page 17 for information about
changing the stereo’s other set­tings.

CD

TR

.
and the track number flash. To
resume play, press

If you pause a CD for m ore

Note:

than 5 minutes, the stereo turns
off.

player, press .

(illus)

CD

again.

EJ cd

appears.

(illus)

If a CD is already in the CD player
( appears on the display),

CD

simply press
The stereo displays
the number of the track you last

22

to play the CD.

cd, TR

, and

12-215 4.fm Page 23 Wednesday, J uly 14, 1999 3: 34 PM

Notes:

• If you eject a CD while it is playing
and do not remove it from the CD
player, the stereo automatically
draws the CD back in and starts
playing again after about 5 sec­onds.

• If you eject a CD then remove it
from the CD player, the stereo dis-

no cd

plays
you press

(or the current time if

CLOCK

).

SELECTING A TRACK

To select a track on the loaded CD,
press
play to advance to the next track or

TUNE/SEEK TRACK –

start of the current track. Repeatedly
press
lect the next or previous track.

TUNE/SEEK TRACK +

to go ba ck to the

TUNE/SEEK TRACK +

during

or – to se-

(illus - arrow TUNE/SEEK TRACK)

SHUFFLE PLAY

You can set the stereo to randomly
select and play tracks from the loaded
CD. After each track plays, the stereo
automatically selects another track
and plays it until you stop shuffle play.

To begin shuffle play, press

SHF

appears during shuffle play.

(illus - arrow SHUF key)

SHUF/1

.

AUDIBLE SEARCH

To search for a particular section of a
track, hold down

TUNE/SEEK TRACK –

or
The stereo rapidly plays the CD either
forward or backward (like cueing or re­viewing a cassette tape). When you
hear the section you want, release

TUNE/SEEK TRACK +
TRACK –

to resume normal play.

TUNE/SEEK TRACK +

during play.

TUNE/SEEK

or

To stop shuffle play, press
again to resume normal play.
appears.

Note: You can use audible search
during shuffle play (see “Audible
Search”).

SHUF/1

SHF

dis-

23

12-215 4.fm Page 24 Wednesday, J uly 14, 1999 3: 34 PM

REPEAT PLAY

You can set the stereo to repeat a sin­gle track on the loaded CD.

To repeat a track, press

RPT

play.
When the track ends, it automatically
repeats.

To stop repeating the track and re­sume normal play, press
disappears.

Scanning the Tracks

appears during repeat play.

(illus - arrow RPT key)

RPT/2

RPT/2.

during

RPT

To stop scanning, pre ss
at the desired track to resum e normal

SCN

play.

disappears.

SCN/3

again

SWITCHING BETWEEN
THE CD AND THE RADIO

You can temporarily stop a CD and lis­ten to the radio by pressing
CD stops and the radio tunes to the
last station selected.

To continue playing the CD from the
point where you stopped it, press

BND

. The

CD

.

You can set the s te reo to play the first
10 seconds of each t rack on the loa d­ed CD, so y ou can find the track you
want to listen to.

To begin scanning, press
appears during scanning.

(illus - arrow SCN key)

24

SCN/3

.

SCN

12-215 4.fm Page 25 Wednesday, J uly 14, 1999 3: 34 PM

TROUBLESHOOTING

If your stereo’s CD player is not working as it should, it displays an error indicator. If
it is a numbered error, it ejects the CD. Try these suggestions.

Indicator Problem Suggestion

E01

E07

no cd

If the stereo still does not operate properly, the c onnecting pins in the r eces s or on
the back of the control panel might be dirty. Use a soft cloth or a contact cleaner
(such as Cat. No. 64-4340) to clean them.

Loading and/or unloading
operation fails.

The CD is loaded incorrectly. Reload the CD with the label

The CD is dirty or defective. Clean the CD (see “CD Care

No CD is loaded. Load a CD.

(illus)

Make sure a CD is loaded. If it
is not, insert the CD properly. If
it is, eject the CD and load it
again.

side up.

Tips” on Page 28) or t ry anoth­er CD.

If the stereo still does not operate properl y, take it to your local RadioShack store
for assistance.

25

12-215 4.fm Page 26 Wednesday, J uly 14, 1999 3: 34 PM

RESETTING THE
STEREO

If your stereo locks up or does not
work properly, remove the front panel
and use a straightened paper clip to
press the reset button on the bottom
left side of the inside panel for about 1
second.

(illus)

26

12-215 4.fm Page 27 Wednesday, J uly 14, 1999 3: 34 PM

CARE AND MAINTENANCE

Your Optimus High-Power In-Dash AM /FM Stereo CD Player is a n example of su­perior design and craftsmanship. The follow ing suggestions will help you care for
your 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.

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, invalidating your stereo’s warranty and voiding your FCC authorization to oper­ate it. If your s tereo is not performing as it should, take it t o 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 go es away, your stereo is causing i t. 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.

27

12-215 4.fm Page 28 Wednesday, J uly 14, 1999 3: 34 PM

CD CARE TIPS

Even though a CD is very durable, you
should handle it with care. We recom ­mend the following precautions.

• Keep the CD in its protective case
or sleeve when you a re not play­ing it.

• Handle a CD by its edges to avoid
fingerprints which can prevent the
CD player’s laser beam from
accurately reading the CD. Your
local RadioShack store sells a
suitable CD cleaner kit.

• Do not write on either side of the
CD, particularly the non-label
side. (Signals are read from the
non-label side.)

• Keep the CD dry. A water drop
can act as a lens and affect the
laser beam’s focus.

• If you park your vehicle in the sun,
temperatures inside the vehicle
can easily reach level s that could
damage your CDs. To prevent
heat damage, avoid leaving your
CDs in your vehicle.

REPLACING A FUSE

If the stereo does not operate, you
might need to replace the red power
wire’s 1-amp 1
supplied spare fuse (Cat. No. 270-

1005). If the clock resets or stored sta­tions are lost w hen the ignition is off,
you might need to replace the 10-amp
blade-type fuse on the stereo’s back
panel with the supplied spare fuse
(Cat. No. 270-1081). Check both fus ­es.

Caution:

ings other than those specified here.
Doing so might damage your stereo.

Do not use a fuse with rat-

Replacing the Red Power
Wire’s Fuse

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

1

/4-inch fuse with the

–

) battery ter-

If a CD skips when you try to play it, it
might be scratched. Your local Ra­dioShack store sells a Scratch ,n Fix
kit (Cat. No. 42-127) that might help
remove the scratch and stop the skip.
See also “Troubleshooting” on
Page 25.

28

2. Push together and twist the fuse
holder’s parts on the red power
wire until they spring apart. Then
remove the fuse.

(illus - show red fuse holder)

12-215 4.fm Page 29 Wednesday, J uly 14, 1999 3: 34 PM

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

1

/4-inch fuse or
a replacement fuse with the
proper rating (such as Cat. No.
270-1005). The fuse must be 1
amp.

4. Reassemble the fuse holder by
inserting the fuse into the longer
of the fuse holder’s ends, and
pushing together a nd twisting the
two parts until they latch together.

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

Replacing the Blade-Type
Fuse

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

–

) battery ter-

2. If the back of the stereo is not
accessible, remove the stereo
from the dash as described in
“Removing the Stereo From the
Dash” on Page 14.

3. Grasp the fuse’s plastic end and
pull it out.

(illus - show blade-type fuse holder)

4. If the fuse is blown, replace it. Use
only the supplied blade-type f use
or a replacement fuse with the
proper rating (such as Cat. No.
270-1081). The fuse must be 10
amps.

5. Grasp the new fuse’s plastic end
and push it in.

6. If necessary, reinstall the stereo in
the dash.

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

29

12-215 4.fm Page 30 Wednesday, J uly 14, 1999 3: 34 PM

SPECIFICATIONS

RADIO

FM (Nominal) AM (Nominal)

Frequency Range 88–108 MHz 530–1710 kHz
Frequency Response (± 3 dB) 50–12500 Hz N/A
IF Rejection 85 dB 40 dB
Image Rejection 60 dB 25 dB
Selectivity 66 dB 100 dB
Signal-to-Noise (S/N) Ratio 60 dB 49 dB
Stereo Separation 30 dB N/A
Usable Sensitivity 17 dBf 29 dB

CD PLAYER

Frequency Response . .......................................................................... 5–20000 Hz

Signal-to-Noise Ratio ..................................................................................... 65 dB

Harmonic Distortion ..................................................................................... 0.08 %

Wow and Flutter ............................................................................. Not Measurable

CDs Used (Diameter) .................................... 5-inch (120 mm) and 3-inch (80 mm)

SIGNAL FORMAT

D-A Conversion ......................................................................................1 Bit Linear

Transmission Bit Rate .......................................................................... 1.4 Mbit/sec

Sampling Frequency .................................................................................... 8 times

Pick-Up System .............................................................................. Optical Pick-Up

Optical Source ................................................................................................ Laser

Wavelength .................................................................................................. 785 nm

Rotation Speed ............................................................ ..... ....... ....... ... 200–500 rpm

Error Correction .............................................................................................. CIRC

Number of Channels ..................................................................... 2-channel stereo

30

12-215 4.fm Page 31 Wednesday, J uly 14, 1999 3: 34 PM

GENERAL

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

Speaker Output Impedance . ........................................................................ 4 Ohms

Maximum Power ................................ 25 Watts ¥ 2CH or 6 Watts ¥ 4CH (12-2154)

25 Watts ¥ 4CH (12-2155)

Power Output (RMS) ......................... 16 Watts ¥ 2CH or 4 Watts ¥ 4CH (12-2154)

16 Watts ¥ 4CH (12-2155)

Chassis Size (HWD) ........................................................ 2.28 ¥ 7.40 ¥ 7.08 Inches

(58 ¥ 188 ¥ 180 mm)

Weight ......................................................................................................... 52.9 oz

(1.5 kg)

Specifications are typical; individual units m ight vary. Specifications are subj ect to
change and improvement without notice.

31

12-215 4.fm Page 32 Wednesday, J uly 14, 1999 3: 34 PM

Limited One-Year Warranty

This product is warrant ed by RadioShac k against man ufacturing d efects 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 CAUSED 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 P ROFIT 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 long an implied warranty lasts or the exclusion of in­cidental or consequential damages, so the above limitations or exclusions may not apply to you.
In the event of a product defect during the warran ty period, take the product and the RadioShack
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 charge for parts and
labor; (b) replace the produc t with one of the same or similar design; or (c) refund the purchase
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
original 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) damage or failure caused by or attributable to acts of God, abuse,
accident, misuse, impr oper or abnormal usa ge, failure to fol low i nstruct ions, improper instal lation or
maintenance, alterati on, lightning or other incidence of exc ess voltage or current; (b) any repairs
other than those provi ded by a RadioShack Autho rized Service Facility; ( c) consumables such as
fuses or batteries; (d ) cosmeti c dam age; (e) transp ortatio n, sh ipping or insuranc e c osts; or (f) cos ts
of product removal, installation, set-up service adjustment or reinstallation.
This warranty gives you specifi c legal rights, and you may also have oth er rights which vary from
state to state.

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

We Service What We Sell

3/97

RadioShack

A Division of Tan dy Corporation

Fort Worth, Texas 76102

1ED6P10A11200A

2A8 Printed in Malaysia