Been a member of the Game Plan club for a few years now. Originally I had a Foxy Lady cocktail about 8 years ago and had that up and running. I didn't find it very fun to play at all so off it went as quick as it came.
A few years went by and I picked up an Old Coney Island in the parking lot of a Chicagoland Show. It was pretty tricky to figure out why I had a row of switches out. It ended up being one of the diodes that is also associated with the dip switch bank. There is one associated with each row of switches. So, after I tried replacing several different chips on the solenoid board, someone was very helpful with that tip and it's been up and running since.
I picked up a Sharp Shooter II in 2015 and bought an Echo Lake mpu right away since the mpu had battery corrosion. I actually just got into setting this thing up and putting the board in it this past week or so. There have been a few struggles along the way, but both the sound board and mpu now boot fully and the game can be played. The last issue it seems is with the displays. If any of the displays are plugged in, it causes the sound or mpu boards to not fully boot, or the game to do random things and lock up at points.
If anyone has any info on possible causes for this please let me know.
I know I need to give Jim a call and see if he has any suggestions as well. I'm typically not around the game when he would be available though, so, in due time I suppose!