MMS-10 Amplified Speaker System (250-1096) Care and Maintenance Faxback Doc. # 17015 Your MMS-10 will provide years of trouble-free service if you connect it to the proper power source, handle it gently, and care for it as described here. If the MMS-10 is not working properly, have it checked by a qualified Radio Shack service technician. CARE TIPS Keep the MMS-10 dry and free of excess dust. Moisture and dust can damage the system. Never leave the MMS-10 in contact with rubber or vinyl for an extended period of time. The rubber of vinyl might stick to the surface and damage the cabinet. CLEANING THE MMS-10 Always unplug the MMS-10 before you clean it. Wipe the cabinet with a soft cloth. If the cabinet requires more than dusting, use a household window cleaner and a soft cloth. CAUTION: Do not use benzene, thinner or any volatile substance to clean the MMS-10. Such substances can permanently mar the finish.