Optimus 120-2113 User Manual

High-Power In-Dash AM/FM Stereo Cassette w/Auto Reverse (120-2113) Feature Faxback Doc. # 62491

Your Optimus High-Power 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 tuner's digital synthesized PLL (Phase-Locked Loop) circuitry gives you precise tuning and drift-free reception. The stereo's anti-theft control panel lets you quickly remove it, making the stereo inoperative.

The auto-reverse cassette deck, memory tuning, and seek and scan tuning 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.

This stereo's features include:

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

Auto-Reverse - continuously plays both sides of a cassette tape.

Fast-Forward/Rewind - lets you quickly move the tape to the beginning or the end.

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

Advanced FM Optimizer - automatically adjusts the tuner's high Circuitry frequency response and stereo separation to give you the best possible sound, regardless of the signal level.

Automatic FM Tuning - automatically changes FM reception on weak Adjustment stations from stereo to mono, to improve reception of those stations.

Lighted Liquid-Crystal - lets you easily see the clock/radio/cassette Display with Clock deck's current functions.

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

Seek Tuning - searches forward to the next strong station in the selected band.

Automatic Seek - adjusts your stereo so the first time it Sensitivity searches a band, it stops only on strong local stations; the next time it searches, it also stops on weaker, distant stations.

High Power - provides 22 watts of total power to give you excellent audio response for all types of music

Digitally Synthesized - gives you precise tuning and drift-free Circuitry reception.

Manual/Automatic Memory - lets you manually or automatically store 18 FM Programming and 12 AM stations into memory groups so you can quickly tune to those stations.

Memory Scan Tuning - scans all stations in an AM or FM memory group, stopping for 5 seconds on each station.

Display Color Selector - lets you change the display's color to amber or green.

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

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

Serial Number: __________________________________________

High-Power In-Dash AM/FM Stereo Cassette w/Auto Reverse (120-2113) Installation Faxback Doc. # 62492

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 is for accessories? How do I connect a wire to the fuse box? Which of the stereo's wires is the power wire? Which stereo wires 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.

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

Notes: This stereo is a DIN-E size unit that requires a 2-1/16 inches (53 mm) high by 7-3/16 inches (182 mm) wide by 6-11/16-inches (170 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 RadioShack store. Follow the installation kit's instructions to mount the stereo.

Routing Speaker Wires

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

Removing the Shipping Screw

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

Before you mount the stereo, use a Phillips screwdriver to remove the screw, spacer, and rubber washer from the top of the stereo. This allows you to remove the mounting sleeve from the stereo.

Note: Save the screw, spacer, and rubber washer in case you ever want to ship the stereo. You can secure them 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. RadioShack 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 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 battery's negative (-) terminal before you begin.

Be sure your speakers can handle 22 watts of power (11 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 (-), POWER LEAD (B+), and CLOCK MEMORY wires first, then make all other connections as described in the following sections before you plug the harness into the stereo. If you do not make the connections in the order shown, an incorrect connection could damage the stereo.

You must connect a separate wire to each speaker terminal as described in "Connecting Two Pairs of Speakers" and "Connecting One Pair of Speakers" below. Do not use a common wire or chassis ground for any speaker connection.

Note: The wiring harness has the following labels: _ + ____Front Left Speaker__/

| \_ | _ + (connector) | ___Rear Left Speaker___/ ________ || \_ |________| || _ + |||||||| || __Front Right Speaker_/ |||||||| ||| \_ |||||||| ||| _ + |||||||| ||| _Rear Right Speaker__/ ||||||||_____|||| \_ |||||||_______||| ||||||_________|| |||||___________| |||| |||| (Wire Harness) |||| ||||--Black--------GROUND (-)----------(To Chassis Ground) ||| |||--Red----------POWER LEAD (B+)------(To ACC) || ||---Blue/White---AMP REMOTE TURN ON---(To Optional Equipment) | |----Yellow-------CLOCK MEMORY---------(To Battery +)

Using an Adapter Harness

If you are replacing an existing stereo, or if your vehicle has been factory-wired for autosound components, you can 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 power and speakers.

After you connect the adapter harness to your vehicle, you can skip "Connecting Two Pairs of Speakers" or "Connecting One Pair of Speakers" below.

Connecting Ground, Power, and Optional Components

Follow these steps to connect the harness to ground, primary and memory backup power, and optional components.

(connector) ________ |________|

|||| ||||__Black-----------GROUND (-)---------------(To Chassis Ground) ||| |||___Red-------------POWER LEAD B+ -----------(To ACC) || ||____Blue/White------AMP REMOTE TURN ON ------(To Optional Equipment) | |_____Yellow----------CLOCK MEMORY ------------(To Battery +)

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.

Harness with 14-pin Connector ________ |________| | |_____Red_____POWER LEAD B+ (To ACC or START)

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 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 (such as the clock), 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.