2-2108.fm Page 1 Wednesday, July 14, 1999 10:07 AM Cat. No. 12-2108 OWNER’S MANUAL Please read before using this equipment.
12-2108.fm Page 2 Wednesday, July 14, 1999 10:07 AM FEATURES Your Optimus In-Dash High-Power AM/FM Stereo Cassette with AutoReverse has many practical, easyto-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. 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.
12-2108.fm Page 3 Wednesday, July 14, 1999 10:07 AM Manual/Automatic Memory Programming — lets you manually or automatically store 12 AM and 18 FM stations into memory so you can quickly tune to those stations. For your records, we recommend you record your stereo’s serial number below. The serial number is on the top of the stereo. Serial Number: ________________ Memory Scan Tuning — scans all stations in an AM or FM memory group, playing for 5 seconds on each station.
12-2108.fm Page 4 Wednesday, July 14, 1999 10:07 AM CONTENTS Installation ....................................................................................................... 6 Before You Begin the Installation ............................................................... 6 Preparing the Mounting Area ............................................................... 6 Routing Speaker Wire .......................................................................... 6 Making the Connections ................
12-2108.fm Page 5 Wednesday, July 14, 1999 10:07 AM Care and Maintenance .................................................................................. The FCC Wants You to Know ................................................................... Cleaning the Tape-Handling Parts ............................................................ Restoring Tape Tension and Sound Quality.............................................. Replacing Fuses ................................................................
12-2108.fm Page 6 Wednesday, July 14, 1999 10:07 AM INSTALLATION BEFORE YOU BEGIN THE INSTALLATION Preparing the Mounting Area Before you install your stereo, read all the instructions in the “Installation” section of this 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.
12-2108.fm Page 7 Wednesday, July 14, 1999 10:07 AM MAKING THE CONNECTIONS The supplied 14-wire harness includes all the lead wires you need to connect the stereo to ground, power, optional components, and speakers. 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 wiring accessories. Important: Do not cut these wires.
12-2108.fm Page 8 Wednesday, July 14, 1999 10:07 AM 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 ON position. This connection powers the stereo and turns it on when you turn on the ignition or turn the key to ACC, and turns off the stereo when you turn off the ignition.
12-2108.fm Page 9 Wednesday, July 14, 1999 10:07 AM If the stereo works properly, disconnect: Then follow these steps to connect the 14-wire harness to the speakers. • The 14-wire harness from the stereo’s 14-pin wiring socket 1. Connect the gray wire to the right speaker’s positive terminal. This terminal is usually marked with a plus sign (+) or red mark. • Your vehicle battery’s negative (–) cable Then proceed with the installation.
12-2108.fm Page 10 Wednesday, July 14, 1999 10:07 AM 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.
12-2108.fm Page 11 Wednesday, July 14, 1999 10:07 AM TESTING THE INSTALLATION Caution: Make sure you have securely made all connections before continuing with the installation. Plug the 14-wire harness into the 14pin wiring socket, then reconnect the cable to the vehicle battery’s negative terminal. Turn on your vehicle’s ignition and test the stereo.
-2108.fm Page 12 Wednesday, July 14, 1999 10:07 AM MOUNTING THE STEREO priate tabs with a screwdriver. Bend out all the side tabs. 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. 6. Reconnect the wire harness and the antenna. 3.
12-2108.fm Page 13 Wednesday, July 14, 1999 10:07 AM 11. Reconnect the cable to the vehicle battery’s negative (–) terminal. REMOVING THE STEREO FROM THE DASH 1. Disconnect the cable from the vehicle battery’s negative (–) terminal. 2. If necessary, remove the metal strap attached to the back of the stereo. 3. Carefully remove the trim plate from the front panel to expose the removal slots at the left and right sides of the stereo. 4.
12-2108.fm Page 14 Wednesday, July 14, 1999 10:07 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. REMOVING THE CONTROL PANEL 1. Slide on the left side of the stereo down. Note: Any stored stations remain in memory when the control panel is removed.
12-2108.fm Page 15 Wednesday, July 14, 1999 10:07 AM BASIC OPERATION stereo, turn ON VOL counterclockwise until it clicks. Setting the Volume — Turn ON VOL clockwise to increase or counterclockwise to decrease the volume. ADJUSTING THE CONTROLS R S BASS Warning: To protect your hearing, do not listen at high volume levels. Slowly increase the volume to a comfortable listening level.
12-2108.fm Page 16 Wednesday, July 14, 1999 10:07 AM SETTING THE CLOCK 1. Turn ON VOL clockwise until it clicks to turn on the stereo. 2. If necessary, press F/C (frequency/clock) until the clock display appears. Note: The display shows the frequency. pull BASS BAL normally TREBLE PLL SYNTHE CHANGING THE DISPLAY’S COLOR The display’s backlight color can be green or amber. Follow these steps to change the display’s color. 1. Turn off the stereo. 2. Remove the control panel. 3.
12-2108.fm Page 17 Wednesday, July 14, 1999 10:07 AM USING THE RADIO Seek Tuning: Press SEEK to automatically tune to the next higher station with a strong signal. 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. AUTO REVERSE PLL SYNTHESIZER 2. Adjust ON VOL to a comfortable listening level. 3. Press BAND to select the desired band. AM 1 or AM 2 appears on the display when an AM band is selected.
12-2108.fm Page 18 Wednesday, July 14, 1999 10:07 AM • To temporarily display the time, press F/C. The display shows the time for 5 seconds, then returns to the frequency display. You cannot display the time during scan tuning. MEMORY TUNING You can store up to 12 AM and 18 FM stations in memory. Each memory group (AM 1, AM 2, FM 1, FM 2, and FM 3) holds up to six stations.
12-2108.fm Page 19 Wednesday, July 14, 1999 10:07 AM Notes: • After the stereo stores six stations or scans the band twice, it tunes to the first stored station and begins to play. • If the stereo does not find enough stations to fill the current memory group while searching, it tunes to the first stored station and begins to play. • If a station has a weak signal or interference, the stereo might not store it automatically.
12-2108.fm Page 20 Wednesday, July 14, 1999 10:07 AM pull BASS BAL TREBLE PLL SYNTHESIZER FADER AMS F/C SCAN BAND SEEK As the stereo scans each memory location in the band, the band and memory group, the frequency, and CH are displayed, and the memory location number flashes. METAL 1 2 3 4 5 6 Caution: Do not hold down the memory location button. This stores the currently tuned station into that location. Scanning Stored Stations Caution: Do not hold down AMS.
12-2108.fm Page 21 Wednesday, July 14, 1999 10:07 AM USING THE CASSETTE PLAYER PLAYING A CASSETTE Warning: To protect your hearing, always turn ON VOL to its lowest level before you begin listening to a tape. 3. Insert the tape into the cassette compartment with its open edge to the right and the desired side facing up. or appears on the display, and the tape begins to play. Caution: Avoid using C-120 cassette tapes. They are very thin and can easily become tangled in the tape-handling parts.
12-2108.fm Page 22 Wednesday, July 14, 1999 10:07 AM Caution: We recommend you press as soon as you finish playing a tape or before you leave your vehicle, to release the tape from the tapehandling parts. This reduces the possibility of a tape being inadvertently tangled or damaged. 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 .
12-2108.fm Page 23 Wednesday, July 14, 1999 10:07 AM CARE AND MAINTENANCE Your Optimus In-Dash High-Power AM/FM Stereo Cassette with AutoReverse 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. Handle the stereo gently and carefully.
12-2108.fm Page 24 Wednesday, July 14, 1999 10:07 AM CLEANING THE TAPEHANDLING PARTS 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 cleaning cassette’s directions to clean the tape head. RESTORING TAPE TENSION AND SOUND QUALITY After you play a cassette tape a few times, the tape might become tightly wound on the reels. This can cause playback sound quality to deteriorate.
12-2108.fm Page 25 Wednesday, July 14, 1999 10:07 AM 4. Reassemble both fuse holders by pushing together and twisting the two parts back together. RESETTING THE STEREO 5. Reconnect the cable to the vehicle battery’s negative (–) terminal. If information on the stereo’s display disappears and your stereo does not work at all, you might have to reset it. To reset your stereo, simply turn your vehicle’s ignition off, wait about 3 minutes, then turn your vehicle’s ignition on again.
12-2108.fm Page 26 Wednesday, July 14, 1999 10:07 AM SPECIFICATIONS RADIO FM (Nominal)AM (Nominal) Frequency Range88-108 MHz5301710 kHz IF Rejection75 dB 50 dB Image Rejection44 dB 55 dB Selectivity60 dB 40 dB Signal-to-Noise (S/N) Ratio 60 dB 50 dB Stereo Separation 30 dB — Usable Sensitivity 2.5 mV (3% THD) 30 mV (20 dB S/N) CASSETTE PLAYER Cassette MechanismAuto-Reverse Wow and FlutterLess than 0.
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12-2108.fm Page 28 Wednesday, July 14, 1999 10:07 AM RADIO SHACK LIMITED WARRANTY This product is warranted against defects for 1 year from date of purchase from Radio Shack company-owned stores and authorized Radio Shack franchisees and dealers. Within this period, we will repair it without charge for parts and labor. Simply bring your Radio Shack sales slip as proof of purchase date to any Radio Shack store. Warranty does not cover transportation costs.
