I just bought my first gun game to repair and I have no information on troubleshooting these. It is a 1987 Exidy Crackshot .Does anyone out there have info on a good website that can help me figure out why this machine does not work. To start with the main fuse on the power supply was blown so I replaced it, and now when I hold the power button the header light will come on only while holding the button. Other than that nothing happens other than a buzz sound. Any info to get me started would be greatly appreciated.