I picked up a rolling thunder, and for the most part, it works great. However I noticed when I had it open that when the game is turned on or off, there are visible electrical shocks where the monitor board touches the chassis frame. The game and monitor are working perfect right now. There is currently no earth ground in the cab, and it seems the old operator cut the ground plug on the ac cord. is this just a lack of ground issue? I figured if I ran some earth ground from the line filter to the chassis frame and put a new ground plug on it might fix it, but what seems to be happening is that the monitor is discharging when it is powered off. It's a K7000. Thoughts?
