It is a dedicated CarnEvil cabinet, 25". I'm trying to determine for sure if it's the k7400 or k7500. The board looks identical to a pic I found of the k7400, but I'm not sure how similar these 2 would be. Isn't the k7500 a medium res monitor? I thought CarnEvil was standard res...
mecha187, it seems like the red bias is really high. If I turn up the green or blue really high I can still make the whole screen turn green or blue, but at any reasonable levels they are tinted red. The red bias and drive pots do still seem to alter the intensity of the red, but I can't get it to normal levels.
I took the neck board off and looked for cracked solder/traces, but didn't see anything. I may try to remove the red drive transistor, which I believe is the one at Q505. Also, I noticed the Jamma harness doesn't fit onto the board very snug, so I'll have to check the video output pins there too. I sure don't want to be into this for a new monitor right after bringing it home.
Thanks for all your help guys!