(Topic ID: 322208)

Ball won't eject when entering 1 of the 3 saucers, scores ok

By pinballpicker

1 year ago



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#1 1 year ago

Been working on this Gottlieb Amazing Spider-Man pinball machine. At first the three upper saucers would not respond to the ball. The switch would add points to the score but there was no ball ejected from any of those and there was no play audio.

I took the CPU board back to the shop and replaced Z27, Z28 and Z29.

When the board was put back into the game at first everything worked just like it was supposed to (including the audio) then after a couple of minutes, when the ball would go into the saucers it will do what you see in the YouTube video. All the power supply voltages are normal. Ran switch test and there were no closed switches other than the outhole switch.

Anyone ever seen this issue before? Will I have to replace the board?

#2 1 year ago

Everything look right in switch test when you put a ball in the holes?

#3 1 year ago

Do the hole kickers fire in the diagnostic tests? Either the solenoid test or the burn-in test?

#4 1 year ago
Quoted from frenchmarky:

Do the hole kickers fire in the diagnostic tests? Either the solenoid test or the burn-in test?

No they don't. I believe I'll order a new MPU.

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