PROBLEMS SOLUTIONS No sound; receiver RF lights) and mic(s) not lit. Male sure POWER switches on transmitters and receiver ars set to ON positions. Check microphones batteries to ensure they am providing power. Replace or charge battered if necessary. Check receiver's AC power connection Marks sure antennas are in te microphones’ line of sight. ¥ necessary, reduce the distance between the microphones and receiver. Hao receiver sound but the RF and Audio Level meter fights are glowing.