Optimus 120-1995 User Manual

AM/FM/CD Car Stereo (120-1995) Features Faxback Doc. # 6994

You can install the features-packed Optimus Detachable Face Digital AM/FM/
CD Car Stereo in almost any vehicle. When you remove the detachable
control panel, an LED blinks to ward off potential thieves and to show
that your stereo is disabled.

The system offers many easy-to-use features which you can safely operate
while driving.

High Power-gives you 32 watts of power (16 watts per channel for a
2-channel stereo).

Detachable Control Panel-can be removed to discourage potential thieves.
Comes with its own protective case.

Security LED-blinks to show that your stereo is disabled after you remove
the detachable control panel.

30 Memory Tuning Presets-let you quickly tune to any of 18 FM and 12 AM
stations.

Automatic Memory Storage-lets you quickly store stations into memory.

Automatic Memory Scan-lets you scan all stations in memory.

Program Play-lets you program and play a selected CD track.

Repeat Play-lets you hear a desired CD track repeatedly.

Intro Scan-lets you scan a CD by playing only the first 10 seconds of
each track.

Random Play-lets you play randomly selected tracks.

Line-Out Jacks-make it easy to connect an equalizer/booster or power
amplifier.

Lighted Display-makes right operation easy.

Phone Mute-automatically mutes the stereo when you use a car phone.

AM/FM/CD Car Stereo (120-1995) Installation Faxback Doc. # 6993

For easier installation, the supplied 13-wire harness includes all the
lead wires you need to connect the stereo to speakers, power, and
optional components. You might need additional wire to complete
connections, depending on your individual auto sound system. Your local
Radio Shack store carries a full line of wire and wire management
accessories.

Caution: For added safely and to protect your stereo, disconnect the
cable from the negative (-) terminal on your vehicle's battery before
you begin installation.

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 door's step plates by carefully removing the
molding that holds the carpet in places. After you route the speaker
wires, replace the molding.

CONNECTING SPEAKERS

Any speakers you connect to the stereo must have a combined power­handling capacity of at least 32 watts, and each individual speaker
must have an impedance of at least 4 ohms. Your local Radio Shack store
carries a full line of automotive speakers.

Caution: You must connect a separate wire to each speaker terminal as
described in the following procedures. Do not use a common wire or
chassis ground for any speaker connection.

Connecting Two Speakers

If you are using only one pair of speakers, set 4CH/2CH on the left side
of the stereo to 2CH. Then connect the speakers to the supplied harness
as follows.

1. Connect the harness' gray wire to the right speaker's positive (+)
terminal.

2. Connect the harness' violet wire to the right speaker's negative (-)
terminal.

3. Connect the harness' white wire to the left speaker's positive (+)

terminal.

4. Connect the harness' green wire to the left speaker's negative (-)
terminal.

Connecting Four Speakers

If you are using both front and rear speakers, set 4CH/2CH on the left
side of the stereo to 4CH. Then connect the speakers to the supplied
harness as follows.

1. Connect the harness' gray wire to the front-right speaker's positive
(+) terminal.

2. Connect the harness' gray/black wire to the front-right speaker's
negative (-) terminal.

3. Connect the harness' violet wire to the rear-right speaker's positive
(+) terminal.

4. Connect the harness' violet/black wire to the rear-right speaker's
negative (-) terminal.

5. Connect the harness' white wire to the front-left speaker's positive
(+) terminal.

6. Connect the harness' white/black wire to the front-left speaker's
negative (-) terminal.

7. Connect the harness' green wire to the rear-left speaker's negative
(+) terminal.

8. Connect the harness' green/black wire to the rear-left speaker's negative
(-) terminal.

CONNECTING TO OTHER COMPONENTS

You can connect other audio components (such as an equalizer/booster or
amplifier) to your stereo's speaker or line level outputs. Check the
component's owner's manual for instructions on connecting it to a stereo
and to power.

If you want to turn the optional component on and off with the stereo,
you can connect it to the stereo's dark blue/white wire (labeled AMP
REMOTE TURN ON). This wire does not provide power to the component. It

simply turns it on or off. If you do not use this wire, use a wire tie
to keep it out of the way.

If your vehicle has an automatic antenna, connect the AMP REMOTE TURN ON
lead to the vehicle's power Antenna lead.

Note: The optional component must be designed for use with an amp remote
turn on lead for the above connection. See the optional component's
owner manual.

CONNECTING TO YOUR CAR PHONE

If you want the stereo's sound to mute when you use your car phone,
connect the pink/white wire to your car phone's mute terminal.

CONNECTING TO POWER AND YOUR VEHICLE'S ANTENNA

1. Connect the stereo's black ground wire to a metal screw attached to
the vehicle's frame. Be sure the screw is not insulated from the
chassis by a plastic part.

2. Connect the stereo's yellow wire (with an in-line fuse holder and
MEMORY BACKUP LEAD label) to your battery's positive (+) terminal or
to a non-switched fuse terminal (a terminal that the vehicle's
ignition does not turn on and off). This connection provides 12
volts of continuous power for the radio's memory and the security LED
when the ignition is turned off.

3. Connect the wire labeled POWER LEAD B (+) (with an in-line fuse
holder) to the accessory (ACC) terminal on your vehicle's fuse block.

This connection provides power to the stereo when you turn on the
ignition, and turns off power when you turn off the ignition. This
prevents your vehicle's battery from draining if you leave the stereo
on and turn off the ignition.

4. Connect the vehicle's antenna cable to the stereo's large antenna
connector.

When all connections are complete, reconnect the battery cable.

TESTING THE CONNECTIONS

After you connect the speakers, power wires, and antenna, turn on your
vehicle's ignition and test the stereo to be sure it works.

If the stereo does not work, immediately unplug the harness. Recheck
your connections or have a professional automotive audio installer
complete the installation.

If the stereo works, disconnect the cable from the vehicle battery's
negative terminal and continue with installation.

MOUNTING THE STEREO

IF your vehicle does not have a prepared opening for a flat face (DIN E)
component, you must use an in-dash installation kit. Installation kits
for many local Radio Shack store.

If you use an in-dash installation kit, follow its supplied instructions
to mount the mounting sleeve.

If you are using an in-dash installation kit, follow these steps to mount
the stereo.

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

2. Temporarily disconnect the wiring harness and antenna.

3. Insert the mounting sleeve into the dash opening and secure it by
bending the locking tabs out with a screwdriver.

4. Reconnect the wiring harness and antenna through the sleeve.

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

Note: To further secure the stereo and ensure proper electrical
grounding, attach the supplied hex bolt to the back of the stereo.
Attach one end of the supplied metal strap to the bolt and the other
end to an existing bolt on a solid metal part of the vehicle.

6. Reconnect your vehicle battery's negative cable.

REMOVING THE STEREO FROM THE DASH

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

2. If you attached the metal strap, release it.

3. Push the sleeve keys into the slots on the right and left of the
front panel (with the tab facing up) until you hear a click.

4. Pull the keys out and down to remove the stereo.

Note: To remove the sleeve keys from the slots, press the RELEASE buttons
located directly below the slots on the bottom of the unit.

5. Disconnect the wiring harness and the antenna cable.

6. Reconnect the battery's negative (-) cable.