Having a weird issue with my Gorgar. When I start a game there will be lamps randomly lit, and turning on and off. The lamps that are lit don't correspond at all to what I know should be happening. Scoring and sounds seem fine though. This behavior seems to correlate with heat -- when i first fire up a game it seems normal, but after it's been on a while it starts acting bizarro.
The other strange thing is it operates perfectly in test mode. Attract mode looks perfect, and all lamps flash when they should in test mode.
I should note that the MPU had pretty substantial alkaline damage when I purchased it. I went through it pretty deeply, removed all corroded parts, cleaned up traces, neutralized, ect. all sockets were replaced, as was the 40pin. I do recall the legs on some of the chips being very black. I cleaned them off, but I wonder if they were damaged? I don't remember which chips it was unfortunately.