1971 25" RCA CTC-44A Chassis TV Turns Off

[joeseattle70]

I haven't been online much in a while, but some of you were helpful in the past with some previous issues. Two weeks ago, it powered down, and I hit the reset button on the back and all was well (thought I could have had a power surge). Since then, it started doing it more and more, and today it won't do anything. As soon as I hit the reset button, it dies. I have the RCA factory Field Service Guide, and it appears that it could be a couple of minor things such as the CR402, but I read it could be a short in the tube itself. The convergence board, video board and tuner have all been rebuilt in the last couple of years. Any ideas, or anyone experience similar issues? Many Thanks! Joe