I recently purchased a line6 v75sc mic
I also own a xd v70 mic and receiver (these still work togeather)
Ive connected the v75 to the older v70 receiver
to do this I had to change it from rf2 to rf1
All was going well and was working fine for 2 gigs we performed at until I lost audio signal
Ive checked rf signal and it was strong
Ive checked batteries and they where strong
Check all leads and mixer channel ,eg mute ,slider ,etc
this is the second unit they have sent to me and still the same problem
any ideas anyone?