When I turn on the Haunted House it does it's warm up but after it warms up it won't play sound, won't respond to the start button. The lights are all on instead of rotating though it's cycle. I tested the power points on the power supply. I'm get 5 at the 5 vdc I'm getting 48 at the 42 terminal and I'm getting 66 at the 60 termainal

Also the player displays are flashing rapidly between the high score and 0. Also the pin doesn't respond to adding credits

All original boards. Connectors and contacts are original. I will check power and ground at cou and driver

How would I check ground? All it has the grounding mod to all boards

Yes it has abnormally fast cycling of the displays. No battery corrosion from what I can tell. The old battery has been removed from the mpu and a new one relocated under all the boards to prevent any future corrosion

Also the wiring harness from the mpu to the driver isn't ground.

So I got a new Pascal board in my haunted house. Got it all set up. Everything checks out but when I push the start button it says check coil 9. Any one know which coil is #9?

Thanks vid! I appreciate it

So I installed a new pascal board in my haunted house. Was working fine but I turned it on today and the displays are showing anything, pin isnt responding at all to me pushing the buttons to start it and the blue pi-80 MCU board has a red led that is flashing. Any suggestions? Also all the play field littles and back glass lights are working and flashing as if they were in attract mode