I was just given a U.S. Games bartop 10-game machine (with trivia , black jack, etc.) and it has five red rectangular buttons that are illuminated. I really can't figure how to get to the light bulbs behind the buttons. I have removed the cherry microswitches and I can see the white plastic guts embedded in the black threaded base. But how to seperate those parts to get to the bulb. I don't want to break it. It looks like the white part should pull away from the black base revealing the bulb. Is there a trick? Any help appreciated. I would think this method is in most lighted switches but its new to me!