Soundbar Not Working

[mark.denzer]

I have a yamaha 108 soundbar, Vizio TV. Using the optical cable. Sound works for about 3 minutes then there's no sound, sometimes high pitched ringing when the sound goes away.

 

[mark.denzer]

MERGED QUESTION
Question from mark.denzer : "Soundbar not working"

Yamaha soundbar, Vizio smart TV, using optical cable. Sound works for about 5 minutes then stops. Sometimes high pitched ringing when sound stops.