I wonder if anyone was doing construction work or moving things around at that location and managed to bonk the speaker panel with something big and heavy (big 1-inch piece of plywood or something like that). I figure you would have to hit the speaker panel pretty hard to snap the DMD like that.

Ted had another update up his sleeve? Very interesting, never knew that. The third magnet doesn’t do much in my TZ unless the game knows the whereabouts of the ceramic ball and Multiball starts. Also helps if the stars are aligned, the moon is in the 7th house, and Jupiter aligns with Mars. When it happens though, it’s pretty neat.

A couple more ideas. First of all, what do we know... the DMD cracked, fuses blew (solenoid, lamp, 5V digital), both insert and flasher LEDs melted (and it's not the first time LEDs have melted in this game). Thinking about what these things have in common, maybe it's time to look upstream towards the power transformer. Could it be failing, with a winding in there that shorts out intermittently (creating overvoltages)? I haven't seen that before, but does the transformer smell like it got hot? Any evidence that a liquid spilled into the cabinet? I wonder if you can re-create the problem by jarring the transformer and/or harnesses while the power is on.