Optimus 120-2117 User Manual

AM/FM Stereo Cassette Player
(120-2117) Features Faxback Doc. # 57140

Your Optimus AM/FM Stereo Cassette Player can be easily installed in
almost any vehicle. The stereo will not operate when you remove its anti
theft control panel. You can quickly remove and store the control panel
in the supplied carry case and take it with you for added security.

The stereo's features include:

Front CD IN Jack - lets you quickly connect a portable CD player
to the stereo, so you can play your favorite
CDs in your vehicle.

Auto-Stop - stop's the tape when it reaches the end, to
reduce wear on your tape and the cassette
deck.

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

Metal/CrO2 - takes advantage of the improved sound quality
of metal or CrO2 tapes.

Mono/Stereo Control - lets you select FM reception in stereo on
strong stations or monaural reception on weak
stations.

Push Band Selector - lets you easily select an AM or FM station
with the push of a button.

Built-In Noise-Suppression - reduces the noise caused by your vehicle's
Choke electrical system.

For your permanent records, we recommend you record your stereo's serial
number in the space below. The serial number is on the top of the stereo.

Serial Number: ________________________________

AM/FM Stereo Cassette Player
(120-2117) Installation Faxback Doc. # 57141

Before You Begin The Installation

Before you install your stereo, we recommend you read through 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?

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.

Note: Before permanent installation, we recommend that you install the
stereo by temporarily connecting it to ground and power, optional
components, and your speakers. Then test the connections. Next
disconnect the stereo, mount it in your vehicle, and then reconnect
it. Place the stereo as close as possible to the selected mounting
location when making the temporary connections.

CAUTION: Be sure your speakers can handle 14 watts of power (7 watts per
channel). Each speaker must have an impedance of at least 4
Ohms. Your local RadioShack store carries a full line of
speakers.

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 stereo
mounting area. This auto-sound stereo system is a DIN-E size unit that
requires a 2-1/16-inch high by 7-3/16-inch wide by 6-11/16-inch deep (52 x
182 x 170 mm) mounting area.

Note: 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
RadioShack store. Follow the installation kit's instructions to
mount the stereo.

CAUTION: Be careful to avoid obstructions behind the mounting surface.

Routing Speaker Wire

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 facing by carefully removing the molding that
holds the carpet in place. After you route the speaker wires, replace the
molding.

Testing the Stereo

Before you mount the stereo or any speaker, test the stereo by temporarily
connecting the power wire, speakers, and antenna as described in "Making
the Connections," below. If you plan to use an adapter harness to connect
the stereo, see "Using an Adapter Harness," below.

Making The Connections

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

IMPORTANT: Do not cut these wires. If you cut any wire, you cannot obtain
a refund or exchange on this product. However, your local Radio
Shack store will provide warranty service if you cut a wire and
find the product is defective.

Depending on your individual auto sound system, you might need additional
wire to complete connections. Your local RadioShack store carries a full
line of wire and wire management accessories.

CAUTIONS: For added safety and to protect your stereo, remember to
disconnect the cable from your vehicle battery's negative (-)
terminal before you begin making the connections.

You must connect the ground and primary wires first, then make
all other connections before you plug the 14-wire harness into
the stereo. (See "Using an Adapter Harness," below.) 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.

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.

Follow the directions supplied with the adapter harness to temporarily
connect the power and speakers.

A selection of adapter harnesses is available at your local RadioShack
store.

Connecting Ground, Power, and Optional Components

Follow these steps to connect the supplied harness with the 14-pin
connector to ground, primary 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 +12V TO IGNITION wire (with the in-line fuse holder)
to a point in your vehicle's fuse block that has power only when you
turn the vehicle's ignition key to either the accessory (ACC) or ON
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 +12V TO BATTERY 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 LED
indicator when the faceplate is removed.

5. Cut the loop at the end of the blue AMP REMOTE TURN ON 500MA MAX wire,
strip about 1/2 inch of 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 power antenna).

This wire does not provide power to the component. It simply turns
other equipment on or off. If you do not use this wire, secure it
with a wire tie and do not let it 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.

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.

Connecting the Antenna

Connect the vehicle's antenna cable to the stereo's antenna jack at the
back of the stereo.

Completing the Connections

After you have securely made all other connections, plug the l4-pin
connector into the stereo's 14-pin wiring socket.

Then reconnect the cable to the vehicle's negative (-) battery terminal.

Testing The Connections

Turn on your vehicle's ignition, install the stereo's faceplate and test
the stereo.

If the stereo does not work, immediately disconnect your vehicle battery's
negative (-) terminal. Then recheck your connections.

After you test the stereo and verify that everything works, make sure the
connections are marked or identified. Then follow the instructions in
"Mounting the Stereo," below.

Mounting The Stereo

Be sure you test the stereo first and verify that it works properly.