Donkey Kong Jr Monitor Issue

[munsonRoyE]

Hi All!

I have installed a cap kit on a Sanyo 20ez monitor in my Donkey Kong Jr. arcade and everything looks great. The only issue I am having is a slight back and forth vibration on the screen. I tried adjusting all the pots, but nothing seems to help it. Any advice would be appriciated. Thanks!

[Gonzo22]

When you did the cap kit, did you replace the pots on the adjustment board? Sounds like a dirty pot somewhere.
I had this problem with my 2 board donkey kong, there was a slight shake in the picture that resloved itself after I turned the pot on the actual game PCB back and forth a few times because it was dirty or old. Maybe one of your pots is dirty too?

[munsonRoyE]

Well, the vibration seems to have stopped. I unplugged the game for a while then plugged it back in. The screen was rolling really bad, so I adjusted the V Hold. Everything looks fine now. Maybe the new caps justed needed time to warm up. If any other problems come up I'll let you know.