I've owned this Theatre of Magic for a few weeks and have had a ton of issues (fuses were blowing, a wiring nightmare, white targets hanging and wired to the red targets, etc). The wiring had been hacked all over the place (all of it had wires twisted together and covered using electrical tape). I've cleaned up most of the wiring and have fixed most of the issues. The main issue now is the game will sporadically "Slam Tilt" during gameplay. The Slam Tilt wires aren't even hooked up. This doesn't happen every game. I'm thinking its a switch or diode not wired correctly.
If someone could post photos of the underside of their TOM playfield (in sections so I can see close enough to verify if my switches are all wired correctly), it would be a huge help.

Thanks everyone. It was a switch (diode was on backwards). The wiring hack was a bigger issue than just looking at the switch matrix...there were jumper wires going all over the place. A fellow member was nice enough to let me go over his house and take a lot of photos. Game is back together correctly now and works. Lots of new parts!