Sick, just sick. I purchased the clear shooter lane protection and laid it in to test fit it, but didn't secure it. I was working on the game and had it up on the service rails and I heard a "pop". No more slings... Everything else worked perfect, all other coils, lighting, witches and both flippers. Then saw that the shooter lane protection raised up and seemingly jammed the auto plunger switch. Suspecting this may have caused the problem.
Entered the Service Menu... No Technician service reminders. No node board errors. And the slings fire when cycling the coils. But slings still didn't fire when normal gameplay started. Decided to run a Factory "Reset". Still no slings, but now the right flipper locks "on" so I turn the game off immediately and the flipper falls.
I manually inspected the Node boards for any obvious burnt components... none. I posted this in the Ghostbusters club as well.
Any advice or ideas before I email Stern in the morning? Thanks.