Help Needed... Hard Drivin'

Hey guys. So I picked up a hard drivin. It powers on, and there is neck glow on the monitor, static coming from the speakers, so there is some life there. The coin mechs were taken out and replaced with a button on the coin door, but the wires that were soldered to it are busted off. I see there are two boards for this machine listed for sale, but is that the problem? In the past, it has been boards in my cases. Is there anyone out there familiar with these? I'm just not sure the right path or even where to begin with this one.

Thanks in advance...