I was having issues with my chasis. Brightness control no longer works, focus and text doesn't seems really crisp (could be due to the brightness issues and having the contrast and screen turned up higher than it should be), and connecting via VGA cable caused a sync issue/rolling screen.
I found a cheap replacement chasis that was untested that I connected. The issue with this one is that it seems like the Red and Blue colors aren't working as the image is very green. I tried to adjust the color settings but Green is the only one that I can increase and decrease.
My other chasis did not have this issue so I know the tube itself is good. Since I have a working neckboard what parts can I take from it to fix this Green only issue? See attached for the working neckboard. I would just use that neckboard but the connectors are slightly different as the boards are different revisions.