So, the machine has been playing fine for quite a while now, but I walked into the room the other day and couldn't play. The F4 fuse was blown, the drop target coil was burned up and Q12 transistor was done as well. I replaced the coil, transistor & fuse, but when I started it up the fuse and transistor blew again. I tested voltage on the rectifier board test points with everything plugged in, but the driver board out and all show proper numbers.
Here's a couple of pictures of the driver board. Any help would be appreciated, as always.