In this video I dive into diagnosing an error condition with a 48v node board for Stern’s Spike 2 pinball system. In this case, I have a Jaws Pro where most of the switches went out and a lot of coils stopped working. The machine says “Node 9 not found” so we’re going to take a look at what the problem is.

The fin up kicker coil was fried and shorted.

Here is the damaged Node board 9 – there’s a driver transistor that exploded and isn’t there in the middle

On the underside of the node board, there was a bunch of corrosion. The problem is, there’s no indication of where this came from? It’s at the top of the playfield underneath the playfield, not near any area where any cleaning solvents could lead, and I didn’t use any cleaning solvents on the playfield. It must have come this way from the factory.