Hello everyone, I'm trying to help my buddy out with a '78 Bally Playboy table he has.

To make a long story as short as possible he's had it unworking for a year or 2 now and on the advise of another chap (who I guess he's lost contact with or something, I got nominated due to my position as "pc/tech guy") we've just replaced the MPU board, which has helped (turns on now!) but although I've tried to follow the troubleshooting routine in the documentation we have come to a stop.

So like I said it fires up now but we can't seem to make any progress beyond that. I've run the self tests and although there's a few burnt out bulbs and a few solenoids don't kick/seem quiet everything else seems ok, but that's all we can get it to do. The only thing noted was that I had to use the self test button on the MPU board as the button behind the coin slot didn't wanna work, it doesn't register coin drops and there's no flipper action either so I dunno if that points to an issue at the front end or what?

Anyone have any tips?

It didn't indicate an error for for that iirc, I have a note of #2 Solenoid ("Knocker") & #2 Switch ("Drop Target B"") not responding from last weekend.

Well the old board had been removed already, presumably by the previous guy, I just installed the new board & reconnected the (3? I forget atm tbh lol) cables/connectors I could see (didn't do anything to 'em), it's an Alltech Ultimate MPU board, I used the table at the back of the manual that came with it to set the Game Select Switch.

Ah ok, I see. That's kinda getting towards the borderline of what I'm comfortable with but I'll talk to my guy and we'll go from there.

Thanks for the help.

Cool beans, thanks for the info Wonko, I'll pass it on.