Found a 36" Sanyo AVM 3659G Won't power up.

[MRX37]

Originally Posted by radiotvnut

Look for any small electrolytic caps in the horizontal drive circuit. Also, trace that B+ input pin of the flyback back to the power supply and I'm sure you'll find at least a 47 uf, 160V cap in the circuit. Pull that cap and check it. I had a sharp come my way with a shorted HOT. I replaced the HOT and the set still had some picture pulling and shifting. It turned out to be a defective electrolytic cap in the B+ line.

All right, I'll start hunting!

EDIT: Found a bad 4.7uf @160 volt cap in the power supply. As I have no boards with a suitable replacement, I'll have to suspend the hunt until I can get a new cap.