Hi, i have picked up a pinball nudger that was not working, after sorting door switch wiring and replacing lamp fuse holder got it sort of working, strange thing it spins reels 1, 2, and gamble/ feature reels as normal reels and reel 3 as gamble/feature reel, after changing lots of bulbs all lights was working, now after cleaning corrosion from battery leakage that was very minor reels as still the same but bank 2? lights no longer work.