Theatre of magic problem

  • Hi Guest,

    Northern Lights Pinball Show - 27th & 28th October 2018

    Visit the Thread here!!

    Buy your DISCOUNTED tickets here and support this event!

    Buying on the link above helps NLP and they are cheaper than the listed play expo tickets, and the on the door price.

    Also it allows you to get in before the general pay on the door public.

    This year their chosen charity is a local Blackpool one, Donnas dream house.

    Another weekend. Loads more machines. Be there.


Site Supporter
Jul 21, 2011
I’d check that your ground reference is actually at ground. Check continuity of ground from the cabinet ground to the earth pin on the plug and also to the ground plane that the board is screwed on to. I think your measurements are suspect, as if your 5v dc was really 3.6v the cpu would not run at all and you wouldn’t get any message on the display. Similarly if your display voltages were what you stated, then there would be no display.

Pick Holder

Site Supporter
Jul 18, 2016
I know this is daft

Is the door switch working that isolates the 50/20v supplies to coils and flashers ?

It can be bypassed by the transformer. Just disconnect the loom down to the power switch on the front door.

I have known these interlock switches to fail or simply not operate when the doors closed.

There will be two switches inside the door.
Likes: Neil McRae