How to remove the inside/backplane from an EM pinball machine?

Sometimes when you have to do more extensive work to relays in an old electro-mechanical game, you can’t bend over the cabinet. You need to get all those assemblies on a bench to service. I go over how you can remove the insides of a game so you can more easily access the components.

The next video in this series goes into repairing a broken latch relay.

The backplane (bottom panel) is typically held in place by a few specific things that need to be un-bolted before it can be removed: Several bolts on the panel itself, then some Jones plugs that attach to the wiring harness going to the playfield and backbox, then the power button, and finally, the board holding the tilt/plumb bob and Jones plug going to the coin door.
The tilt board is removed with a few screws, then detach the coin door Jones plug.
Also don’t forget the power cable has to go too, which may require unbolting the head to pull it through the inside.

Jello Biafra on Pinball

Lately, I’ve been going through many old videos I have on file and I came across one I thought might be fun to share. This features Jello Biafra (who may be best known as the front man for the iconic punk band, “Dead Kennedys” but also a well known social activist). I’ve worked with Jello for many years in music-related things and a few years back he was at the PinChurch and started talking about pinball, so I flipped on the camera and captured a fun little moment of him talking about his childhood interest in pinball.

Diagnosing gameplay issues on EM pinball machines (Target Pool)

This is a fun video that I think is quite informative. I go over the process of how I discovered a feature in the game was not working. It’s a good example of how even supposedly “fully-working” games are often not fully working and many people don’t realize.

So what do you do when you discover a play feature isn’t working? I go over how we can diagnose and identify/fix the problem, even without having schematics. Check it out!