My STTNG has run amok! I'm admittedly a novice when it comes to pinball repair and I feel like I've jumped in the deep end with this one.

Recently I started getting random callouts and no background music. The game seemed to work fine otherwise. I poked around under the hood, unplugged and replugged in various pins on the sound board, CPU, etc and somehow the sound started working again. Great. But now both of the launchers run continuously on startup and I get the "can't find home" error on both the right and the left side. Both launchers read "closed" when I run diagnostics despite the launcher position. The "home" switch test does not trigger when I manually engage the switch under the playfield on both the right and left side.

Also when I run the solenoid test the under playfield upper, lower, and drop target doesn't "pop". Not sure if this is a separate issue that happened at the same time or if it's all tied together.

I've checked for power to the diverter solenoids and to the launcher home position switch. I traced a purple wire that runs from the switch up to a board (not sure which one, on the upper right side) and there's continuity. I checked the fuses and all seem good.

I think it would be weird if both the switches went out at the same time so I guess I could replace these but I don't think this is it. Seems like the harnesses can be problematic, but again strange for both to go out at the same time. And how does that explain the diverter problem?

Any ideas would be greatly appreciated!

I fixed it! Thanks for your input and a special shout out to my buddy Ross "the Pinball Pathologist" Simpson. Ross figured out the auxiliary board on the far right side of the back panel controls both the under diverters and the switches for the cannons. I futzed with the pin connectors on this board again, making sure they were all seated properly and PRESTO it worked fine. I don't think it was misaligned or anything... just a loose connection.

Back in business!