Just want to thank all the great contributors to this site for such excellent detail. I had a Vizio M50-C1 that my son was about to trash so I decided to try and revive it. The behavior was that the TV would turn on, then after a few minutes, reset and then pickup where it left off (on a Roku stick). It began to do this intermittently, then more or less constantly.

After vetting the power supply and thinking it was OK, I moved on to the main board. I was fascinated to read all the threads on the Ball Grid Array (BGA) process and the negative characteristics of the lead-free solder...