Well i built a mame machine for myself and just needed a pinball machine to complete my happiness. I bought a used "close encounters of the third kind" that's semi-working. It lights up and everything but the score board is blank. I was told it might be the MPU Board. I just want to know if i could repair this myself or have it redone or maybe get a replacement board. Where bcould i go to get this kind of help or parts cheap?