TM-155 (310-1958) Care and Maintenance Faxback Doc. # 7041 The OPTIMUS TM-155 Stereo Mini Tuner is an example of superior design and craftsmanship. The following suggestions will help care for the tuner so it can be enjoyed for years. -Keep the tuner dry. If it does get wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits. -Use and store the tuner only in normal temperature environments. Temperature extremes can shorten the lift of electron devices and distort or melt plastic parts. -Handle the tuner gently and carefully. Dropping it can damage circuit boards and cases and can cause the tuner to work improperly. -Keep the tuner away from dust and dirt, which can cause premature wear of parts. -Wipe the tuner with a damp cloth occasionally to keep it looking like new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the tuner. Modifying or tampering with the tuner's internal components can cause a malfunction and might invalidate the tuner's warranty and void your FCC authorization to operate the tuner. If the tuner is not operating as it should, take it to the local Radio Shack store for assistance. (smc-02/28/94)