Took my first look at a customer's SH tonight. It was working fine, then suddenly went wonky. He described it as all the lights "reversed". Currently, at game start, some of the backglass cards are lit, none of the playfield cards are lit, none of the rollover numbers are lit, a couple of the pops are lit, a couple of the orange lites leading to the standups are lit.

So my question is: What lites should be on at game start, and what causes the lites to come on or go off.

Thank you for reading, and gratitude if you respond!

Thank you!

Fantastic! He has the schem on the way, and with this post I am feeling pretty confident. Probably mostly gonna be that giant relay bank...