In-Dash AM/FM Stereo Cassette with Auto-Stop (120-2009) Care and Maintenance Faxback Doc. # 32347 Your Optimus In-Dash AM/FM Stereo Cassette with Auto-Stop 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. Dropping it can damage circuit boards and cases and can cause the stereo to work improperly. Keep the stereo away from dust and dirt, which can cause premature wear of parts. Wipe the stereo with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the stereo. Modifying or tampering with the stereo's internal components can cause a malfunction and might invalidate your stereo's warranty and void your FCC authorization to operate it. If your stereo is not performing as it should, take it to your local Radio Shack store for assistance. THE FCC WANTS YOU TO KNOW Your stereo might cause TV or radio interference even when it is operating properly. To determine whether your stereo is causing the interference, turn off your stereo. If the interference goes away, your stereo is causing the interference. Try to eliminate the interference by: Moving your stereo away from the receiver Contacting your local Radio Shack store for help If you cannot eliminate the interference, the FCC requires that you stop using your stereo. CLEANING THE TAPE-HANDLING 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 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. To restore the sound quality, fast-forward the tape from the beginning to the end of one side, then rewind it. Then loosen the tape reels by gently tapping each side of the cassette's outer shell on a flat surface. CAUTION: Be careful not to damage the cassette when tapping it. Do not touch the exposed tape or allow any sharp objects near the cassette. REPLACING A FUSE If the stereo does not operate, you might need to replace the red power wire's fuse with the supplied spare fuse. If the clock resets or stored stations are lost when the ignition is off, you might need to replace the yellow continuous power wire's fuse with the supplied spare fuse. Check both fuses. WARNING: Before you begin, disconnect the cable from the vehicle battery's negative (-) terminal. 1. Pull the two latches on the fuse holder apart until it opens. 2. If either fuse is blown, replace it. Use only standard 1 1/4-inch fuses with the proper rating. The red power wire's fuse must be 3.0 amps, and the yellow continuous power wire's fuse must be 0.5 amp. CAUTION: The supplied spare fuses have the proper ratings. Make sure you replace a fuse only with another fuse of the same rating. 3. Reassemble the fuse holder by squeezing it together until it snaps shut. 4. Reconnect the cable to the vehicle battery's negative (-) terminal. (BR/EB 4/17/96)