Hello all

As the title above states I have a Williams Flash. I picked this up as a project and I have since had both the cpu and driver board rebuilt as well as their interconnect,battery holder and sockets. I have almost everything working now 100%.
I can play a game no problem as long as I want but almost every time I complete the 3 bank drop targets it makes what sounds like a tilt sound and game ends. No issue with flasher as it goes off in attract mode and also does not end game when it lights. Or at least not everytime it seems to not always happen as I have completed thunder without game reset at least one time.

Any ideas what to look at next?

Thanks for your help.

Reflow solder on your solenoid. Also taking it apart to clean gunk is a good idea maybe replace the nylon sleeve. These drops seem to have a different system for up down switch than I am use to seeing. Maybe someone else can add ideas.
As for the drop it could be the plastic itself warped over time. Check to make sure when trying to go down it does not catch on rubber, playfield or drop target mounting bracket. I believe on the inside of these they have a drag style contact system. It is possible this could be in a bind.