My rush 2049 machine's CRT started jumping/shaking recently. I noticed that if you adjusted the RGB levels it would affect the amount of jumping but now it jumps no matter what. I post a video link to my issue. Any ideas?
Is it a Wells Gardner U3000? That's what was in my 2049 cab.
With any WG monitor I would suggest a cap kit. I've fixed 4 out of 6 faulty WG monitors just by putting new caps in. Put low ESR caps in the power supply board and swap the 68k 2W resistor for a new one (it's a matter of time before it fails).