Yamaha GW50 Owner's Manual - Page 6

s AVOID EXCESSIVE HEAT, HUMIDITY, DUST AND VIBRATION Keep the unit away from locations where it is likely to be exposed to high temperatures (such as direct sunlight) or humidity. Also avoid locations which are subject to excessive dust accumulation or vibration which could cause mechanical damage. s DO NOT OPEN THE CASE OR ATTEMPT REPAIRS OR MODIFICATIONS YOURSELF This product contains no user-serviceable parts. Refer all maintenance to qualified Yamaha service personnel. Opening the case and/or tampering in any way with the internal circuitry will void the warranty. s MAKE SURE POWER IS OFF BEFORE MAKING OR REMOVING CONNECTIONS Always turn the power off prior to connecting or disconnecting cables. PRECAUTIONS s CLEAN WITH A SOFT, DRY CLOTH Never use solvents such as benzine or thinner to clean the unit, since these will damage the finish. Wipe clean with a soft, dry cloth. If necessary, use a soft, clean cloth slightly moistened with a diluted, mild detergent - making sure to wipe the case off again with a dry cloth. s ELECTRICAL INTERFERENCE Since the GW50 contains digital circuitry, it may cause interference and noise if placed too close to TV sets, radios or similar equipment. If such a problem occurs, move the GW50 further away from the affected equipment. s MIDI CABLES When connecting the GW50 to other MIDI equipment, be sure to use only high-quality cables made especially for MIDI data transmission. Also avoid cables longer than 15 meters, since long cables can result in data errors. s HANDLE ALL CONNECTIONS CAREFULLY Always be careful to connect and disconnect all cables and cords by gripping the connector itself, not by pulling on the cord. iii PRECAUTIONS