i basically have tried everything possible new connection lead eg phono leads combined with input lead for audio cable on base unit plugged into tv via audio jacks red and white jack sockets true connection there but green transmitter light keeps going off when i bang bottom of base unit comes back on after several attempts but only stays on for short period of time before going off again when green light is on tried to tune in on all channels on base unit but not getting anything only tuning noise and loud static discharge noise charged batteries fully for 18 hrs as required still no joy any ideas pls as to how to tune my rs 120 wireless headset to tv in this case what could be possible problem as to why cant tune headset to my tv any help appreciated ty william in stoke on trent