Optimus 120-2152 User Manual

AM/FM Car CD Player
(120-2152) Features Faxback Doc. # 37643

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.

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

Caution:

Use common sense. Do not change your stereo's settings in heavy
traffic or during hazardous driving conditions.

CD PLAYER

Audible Search - lets you rapidly play a CD in
either direction to locate a
desired section of a track.

Shuffle Play - randomly selects and plays
tracks from the loaded CD.

Repeat Play - automatically repeats the
current track.

Intro Scan - scans and plays the first
10 seconds of each track, so you
can find a specific track.

AM/FM STEREO TUNER

Memory Tuning - lets you quickly store and tune
up to 18 of your favorite
stations (6 AM and 12 FM).

Auto Travel Programming - lets 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.

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

Memory Scan Tuning - scans all stations stored in
memory, playing for 5 seconds on
each.

LO/DX Button - lets you set the stereo to scan
only strong local FM stations or
both strong and weaker, distant
FM stations.

Band Button - lets you easily select AM or FM
stations with the push of a
button.

Digital Synthesized Circuitry - gives you precise tuning and
drive-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

Anti-Theft Control Panel - lets you quickly remove and
store the stereo control panel
in the supplied carry case.
This discourages theft because
the stereo cannot operate
without the control panel.

Five Preset Equalizer Settings - provide you with common sound
settings for enhancing rock,
Jazz, pop, classical, or country
and western music.

Electronic Bass, Treble, Fader, - Let you adjust high and low
and Balance Controls sounds and the balance between
the left/right and front/rear

speakers by pressing a few
buttons, so you can tailor the
sound to suit your preferences.

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

We urge you to record your stereo's serial number here. The number 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 laser light beam. Only a qualified service
person should remove the cover or attempt to service this device, due
to possible eye injury.

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

AM/FM Car CD Player
(120-2152) Installation Faxback Doc. # 37644

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 of the stereo's wires is the power wire?

Which terminal in my vehicle's fuse box is for accessories?

How do I connect a wire to the fuse box?

Which stereo wires are line-level outputs and which are speaker
outputs?

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

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.

Notes:

This autosound stereo system is a DIN-E size unit that requires a
2 1/4 inch (57 mm) high by 7 1/2 inch (190 mm) wide by 7 1/4 inch
(186 mm) deep mounting area.

If the mounting area is too large, you might be able to mount the
stereo with an in-dash installation kit, available at your local
Radio Shack store. Follow the installation kit's instructions to
mount the stereo.

Cautions:

Make sure your vehicle's mounting area is at level as possible.
If you cannot mount the stereo exactly level, make sure the stereo
will not tilt up more than 30 degrees when it is mounted.

Be careful to avoid obstructions behind the mounting surface.

Routing Speaker Wires

If you install speakers, avoid routing the speaker wires near moving parts
or sharp edges. You can usually route it 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 the Shipping Screw

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

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

Caution:

If you do not remove the shipping screw, you cannot remove the
supplied sleeve from the stereo and the CD player will not work.

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. Radio Shack will provide warranty
service if you cut a wire and find the product is defective.

You might need additional wire, depending on your individual auto
sound system, to complete the connections.

Your local Radio Shack 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.

(new illus)

Be sure your speakers can handle 32 watts of power
(16 watts power channel). Each speaker must have an impedance
of at least 4 ohms. Your local Radio Shack 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 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 connections
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 wiring harness has the following labels.

Using an Adapter Harness

If you are replacing an existing stereo, or if your vehicle has been
factory-wired for auto-sound components, you might be able to use an
adapter harness to connect the power and speakers. Radio Shack stores
sell adapter harnessers 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 harness with the 14-pin connector to
ground, primary and memory backup power, and optional components.

1. Disconnect the cable from your vehicle battery's negative (-)
terminal.

2. 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 chassis by a plastic
part.

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 (with black transformer and
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 power for the stereo's components, and
continuous power for the stereo's memory when the ignition is
turned off.

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 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.

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 stereo's
LINE OUTPUT R-CH WHITE jacks and blue/white wire, if necessary, to the
equalizer or booster.

Check the equalizer/booster's owner's manual for directions.

Connecting One Pair of Speakers

If you are using only one pair of speakers, follow these steps to connect
the harness with the 14-pin connector to the speakers.

Note:

The labels on the wiring harness are for a two-pair connection. For a
one-pair connection, the labels are not correct.

1. Connect the grey wire to the right speaker's positive terminal.
This terminal is usually marked 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 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.

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

2. Connect the grey/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.

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.