I've been fighting a nasty problem with a WMS Indy Jones that's really got me stumped. The game will slam tilt shortly after completing all of the adventures and no other time. It plays perfectly through all the modes but as soon as you complete them all within just a few shots the game will slam tilt. I've done a 100% switch test. I've swapped out the MPU, the Power/Driver, the flipper optos, and the 10 opto controller under the playfield. The trough switches check out OK. I've use my oscilloscope to look at the switch rows and don't see anything unusual. I've pounded on the playfield with the game in Switch Edges to see if anything false trips. I've started a game and then disconnected the coin door so the slam tilt is not even connected and the same problem occurs.
I've truly run out of ideas to try. Any suggestions would be greatly appreciated. Thanks!