I feel your pain John. I reassembled the Howzat today and I keep blowing the solenoid fuse on the power supply board and I'm not sure why. It wasn't doing that before i pulled the playfield out? I guess it's time to pull all the coils and check them.
I also have a couple of lights out.

Is the fuse blowing at start up?
Can you hear a coil locking at start up?