I have an Flatscreen TV model# NS-LCD26F After about 30 minutes the power goes off (green power light goes off) seems like a thermal breaker. Sometimes later ( not sure how long ) the green power light comes back on and it will work for awhile again. It is not the a/c supply because I plugged something else in to it and it works. I was a tv technician years ago, so if you could send me the schematic of this set I can repair it.