Picked up a Neo Geo Cab that was working but the monitor was not working. Got it home and looked it over and I noticed with Focus and Screen adjustments all the way up I can see a dim and blurry picture of the game playing. The brightness is also cranked up too. I went ahead and did a cap kit and I also replaced the flyback. Put it back in and there is no change to the picture, still comes on with a dim blurry picture with everything cranked up. I am not sure where to look next to solve my problem. This is my first monitor repair so please be specific in any instructions. It is also occurred to me that this could be a case of a bad tube or failing tube.
Thank you in advance.