Pinball Switch Testing

Pinball machine didn't want to come out of attract mode, some research on the internet suggested that the three switches that detect the pinballs in the ball trough are often the culprit.

Tested the switches and found that 2 of the 3 were not working. Cleaned them with some switch cleaner and now the game would start.

Tested everything out going through the diagnostics modes, see firepower pinball for a how to. Most of the game is now working, there are a couple of solenoids though that aren't firing. One unfortunately is the solenoid that kicks the ball onto the ramp, this one is pretty crucial, and the other is solenoid 7, that acts as a shield, and stops the ball from going out of play on the left side. Not sure how a player activates the shield, but it looks like the diode there is bad.

Will try replacing the diode on switch 7, and also the transisters for these two solenoids on the driver board.