I had the same thing happen with a modern game when another operator had opened my game and left me something… right against the tilt bob 😂 Thankfully the clues were a lot more clear!
Actually, if you know the Haunted House sounds by heart, you immediately recognise the tilt tune ! These games can be demanding at times. I once had a dead flipper eventhough the end of stroke had been cleaned and tuned up. Despite shiny contacts and correct adjustments, the power was not passing through ! Unbelievable. But we love these machines don't we?
Good riddance to mine. I loved the lightning on the back glass. I hated this old as dirt machine and ALL the boards and solenoids and FIRE and wear and glitchy crud. Buh buy