2-2111.fm Page 1 Wednesday, July 14, 1999 11:50 AM Cat. No. 12-2111 OWNER’S MANUAL Please read before using this equipment.
12-2111.fm Page 2 Wednesday, July 14, 1999 11:50 AM FEATURES You can install your Optimus High Power AM/FM Stereo Cassette with Auto-Reverse in almost any vehicle. The tuner’s digital synthesized circuitry gives you precise tuning and drift-free reception. The auto-reverse cassette deck, memory tuning, and seek tuning all help make your stereo’s operation simple and quick so you can drive safely. Caution: Use common sense.
12-2111.fm Page 3 Wednesday, July 14, 1999 11:50 AM Digitally Synthesized Circuitry — gives you precise tuning and driftfree reception. Built-In Noise Suppression Choke — reduces the noise caused by your vehicle’s electrical system. We recommend you record your stereo’s serial number here. The number is on the top of the stereo.
12-2111.fm Page 4 Wednesday, July 14, 1999 11:50 AM CONTENTS Installation .......................................................................................................5 Before You Begin the Installation ...............................................................5 Preparing the Mounting Area ...............................................................5 Routing Speaker Wire .......................................................................... 5 Making the Connections ...................
12-2111.fm Page 5 Wednesday, July 14, 1999 11:50 AM INSTALLATION BEFORE YOU BEGIN THE INSTALLATION Preparing the Mounting Area 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: Before you mount the stereo, read through this “Installation” section to make sure you have all the necessary materials. Then confirm that the stereo fits your vehicle’s mounting area.
12-2111.fm Page 6 Wednesday, July 14, 1999 11:50 AM 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. RadioShack will provide warranty service if you cut a wire and find the product is defective.
12-2111.fm Page 7 Wednesday, July 14, 1999 11:50 AM 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. Make sure you disconnected the cable from your vehicle battery’s negative (–) terminal. 2. Connect the black ground wire (with in-line filter and fuse box) to a chassis ground, such as a metal screw attached to a metal part of the vehicle’s frame.
12-2111.fm Page 8 Wednesday, July 14, 1999 11:50 AM 5. Cut the loop at the end of the blue wire, strip about 1/2-inch of insulation from the end, and connect it to any optional components, designed to run from a switched source, that you want to turn on and off when you turn the stereo on and off (such as an equalizer/booster or a power antenna). This wire does not provide power to the components. It simply turns them on or off.
12-2111.fm Page 9 Wednesday, July 14, 1999 11:50 AM Connecting Speakers You can connect one or two pairs of speakers to the stereo. 4. Connect the white/black wire to the left speaker’s negative terminal. Connecting Two Pairs of Speakers Cautions: • Be sure your speakers can handle 32 watts of power (16 watts per channel if you connect the stereo to one pair of speakers, or 10 watts per channel if you connect the stereo to two pairs of speakers). Each speaker must have an impedance of at least 4 ohms.
12-2111.fm Page 10 Wednesday, July 14, 1999 11:50 AM 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. Connecting the Antenna Connect the vehicle’s antenna cable to the stereo’s large, black antenna jack. Testing the Connections Caution: Make sure you have securely made all connections before continuing with the installation.
12-2111.fm Page 11 Wednesday, July 14, 1999 11:50 AM MOUNTING THE STEREO Be sure you test all connections first, then follow these steps to mount the stereo. 1. Disconnect the cable from the vehicle battery’s negative (–) terminal. 2. Disconnect the wire harness and the antenna. 3. Insert both of the supplied removal keys into the slots at the top left and right sides of the stereo until the keys lock into place, and slide the sleeve off of the stereo. 6. Reconnect the wire harness and the antenna. 7.
-2111.fm Page 12 Wednesday, July 14, 1999 11:50 AM 9. If necessary, bend the metal strap to fit your vehicle’s mounting area. Then attach the other end of the strap to a solid metal part of the vehicle. This strap also helps ensure proper electrical grounding of the stereo. 4. Insert both of the supplied keys into the slots at the lower left and right sides of the stereo, then slide the stereo out of the dash. 10. Reconnect the cable to the vehicle battery’s negative (–) terminal.
12-2111.fm Page 13 Wednesday, July 14, 1999 11:50 AM CONNECTING LINE-LEVEL COMPONENTS This stereo has pre-amp outputs (phono connectors) for connection to an equalizer/booster, power amplifier, or other device that has line-level inputs. To ensure a low-noise connection, connect a ground wire between the stereo and the additional component. The following diagram shows a typical system using the line outputs. Note: Always refer to the component’s owner’s manual to ensure proper connections.
12-2111.fm Page 14 Wednesday, July 14, 1999 11:50 AM USING THE CONTROL PANEL The stereo’s anti-theft control panel must be in place for the stereo to operate. When you remove it, the stereo does not work. This is a simple, but effective security measure. 2. Gently push the left edge of the control panel into the recess until you hear a click. Notes: • The time display turns off when the control panel is removed. • Any stored stations remain in memory when the control panel is removed.
12-2111.fm Page 15 Wednesday, July 14, 1999 11:50 AM BASIC OPERATION ADJUSTING THE CONTROLS Push BAL — push and rotate to ad- When you listen to your stereo, you can adjust the following controls to suit your listening preferences. ON/VOL — turn clockwise until it clicks to turn on the stereo. Turn ON/ VOL clockwise to increase or counterclockwise to decrease the volume. To turn off the stereo, turn ON/VOL counterclockwise until it clicks.
12-2111.fm Page 16 Wednesday, July 14, 1999 11:50 AM TUN t or TUN s — repeatedly press to tune down or up a selected band (see “Using the Radio” on Page 17). SEK t or SEK s — press and hold down to automatically tune to the next lower or higher station with a strong signal (see “Using the Radio” on Page 17). SETTING THE CLOCK 1. If the stereo is off, turn ON/VOL clockwise until it clicks to turn it on. Note: The display normally shows the clock.
12-2111.fm Page 17 Wednesday, July 14, 1999 11:50 AM USING THE RADIO PLAYING THE RADIO 1. If the stereo is off, turn ON/VOL clockwise until it clicks to turn it on. The radio automatically tunes to the last station selected. 2. Press BND to select the desired band. AM 1 or AM 2 appears on the display when an AM band is selected. FM 1, FM 2, or FM 3 appears when an FM band is selected. • To improve reception of strong stations, press LOC until LOC appears on the display.
12-2111.fm Page 18 Wednesday, July 14, 1999 11:50 AM Automatically Storing Stations 1. If the stereo is off, turn ON/VOL clockwise until it clicks to turn it on. 2. Press BND until the stereo displays the band and memory group where you want to store a group of stations. For example, to store the first group of AM stations into AM 1, press BND until AM 1 appears. 3.
12-2111.fm Page 19 Wednesday, July 14, 1999 11:50 AM Selecting a Stored Station To select a stored station, press BND to select the correct memory group. Then briefly press the desired memory location button. Note: Do not hold down the memory location button. This stores the currently tuned station into that location. stations into the selected memory group. 3. To stop scanning when the stereo pauses at a station you want to listen to, briefly press the station’s memory location button.
12-2111.fm Page 20 Wednesday, July 14, 1999 11:50 AM USING THE CASSETTE PLAYER PLAYING A CASSETTE Caution: Avoid using C-120 cassette tapes. They are very thin and can easily become tangled in the tape-handling parts. 3. Insert the tape into the cassette compartment with its open edge to the right and the side you want to hear facing up. The tape begins to play. Follow these steps to play a cassette tape. 1. Take up any slack by turning the cassette’s hub with your finger or a pencil.
12-2111.fm Page 21 Wednesday, July 14, 1999 11:50 AM Notes: • When the tape reaches the end, the cassette player automatically changes the tape’s direction and plays the other side of the tape. Play continues until you press . • During play, you can switch to the other side of the cassette by pressing and at the same time. Fast-Forward and Rewind To fast-forward or rewind the current side, firmly press and hold or depending on which side of the tape is playing. The tape quickly winds.
12-2111.fm Page 22 Wednesday, July 14, 1999 11:50 AM CARE AND MAINTENANCE Your Optimus High Power AM/FM Stereo Cassette with Auto-Reverse is an example of superior design and craftsmanship. The following suggestions will help you care for the 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.
12-2111.fm Page 23 Wednesday, July 14, 1999 11:50 AM CLEANING THE TAPEHANDLING PARTS REPLACING A FUSE Clean the tape head after about every 20 hours of playing time. Insert a special head-cleaning cassette (such as Cat. No. 44-1202), and follow the cassette’s directions to clean the tape head. If the stereo does not operate, you might need to replace the red power wire’s fuse with the supplied spare 8.0 amp fuse.
12-2111.fm Page 24 Wednesday, July 14, 1999 11:50 AM 3. Unlatch the two latches on the yellow continuous power wire’s fuse holder until the box springs open. 4. If either fuse is blown, replace it. Use only standard 11/4-inch fuses with the proper rating. The red power wire’s fuse must be 8.0 amps, and the yellow continuous power wire’s fuse must be 0.5 amp. Caution: The supplied fuses have the correct Make sure you replace only with another fuse same rating. spare rating. a fuse of the 5.
12-2111.fm Page 25 Wednesday, July 14, 1999 11:50 AM SPECIFICATIONS RADIO Frequency Range IF Rejection Image Rejection Selectivity Signal-to-Noise (S/N) Ratio Stereo Separation Usable Sensitivity FM (Nominal) 87.9-107.9 MHz 70 dB 50 dB 30 dB 55 dB 30 dB 3.0 mV (3% THD) AM (Nominal) 530-1710 kHz 50 dB 50 dB 35 dB 50 dB — 32 mV (20 dB S/N) CASSETTE PLAYER Cassette Mechanism...................................................................... Auto Reverse Wow and Flutter .................................
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12-2111.fm Page 28 Wednesday, July 14, 1999 11:50 AM RadioShack Limited Warranty This product is warranted against defects for 1 year from date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and dealers. Within this period, we will repair it without charge for parts and labor. Simply bring your RadioShack sales slip as proof of purchase date to any RadioShack store. Warranty does not cover transportation costs.
