Can't adjust colors on Sanyo 20ez

[Baadbeats]

Hello all, total newbie here. I have a donkey kong 3 with a Sanyo 20ez monitor. While the colors all look pretty good, I can't seem to adjust them at all. I tried the RGB pots on the neck board but they aren't doing anything at all. Same goes for the RGB pots on what I believe is called an inverter board (the small board mounted on the flyback cover). Any help would be much appreciated.

Thanks,
Carl

[John's Arcade]

You could have a weak tube. Post some photos? If you crank the pots do the colors fill the entire screen?

[Baadbeats]

You could have a weak tube. Post some photos? If you crank the pots do the colors fill the entire screen?

All the colors looks pretty good on the game, I just wanted to fine tune them a little bit. Cranking the RGB pots either way does absolutely nothing at all.

[Baadbeats]

sorry, I can't for the life of me figure out how to attach the photo I just took. The monitor looks really nice to me, i was just going to try and tweak the colors a little bit, when I figured out that none of the RGB pots are doing anything at all. The colors look pretty good to me, my only concern is why I cant adjust them at all with the RGB pots.

[Baadbeats]

I'm an idiot! I got it. As I said, total newbie. I was trying to tweak the colors with the game running. I just realized the RGB pots may only work in the test pattern, so I went to the test pattern and sure enough, the pots work! Thanks for taking the time to try and help me, I love the videos.