Hi everyone ,
I'm new and a neophyte, I bought a gottlieb spring break to restore, maybe today I think it was a gamble as a first pinball machine, but the forum and the information found on this site give me the spirit to persevere.

When I turn on the pinball machine, nothing happens, dislpay is off, the playfild lights are off, there are only 3 flashing lights, from what I understand only the tilt relay starts and nothing more.

This pinball machine was damaged by vandals, the coin mechanism was unhinged, so I thought the problem was the slam switch, I made the change to the MPU board by creating the bridge to bypass the slam switch, I don't know if I did well?

As soon as the flipper was withdrawn, the spindles jumped, so I replaced them all, changed the capacitor and the diode bridges of the power supply and restore the ground masses.

On the Mpu I have the 5v

But now I don't know how to go further, I can't understand if it's a tilt or cpu or mpu board or eprom problem.

Any suggestions? thank you all .

IMG-7582 (resized).PNG

I immediately buy the balls, they only gave me one, I'll update you. thank you.

Update: I inserted the balls, this is the result, the Tilt relay remains on.

there are other checks I can do before I think the MPU board is broken.

thank you

IMG-7591 (resized).jpg

IMG-7592 (resized).jpg

IMG-7593 (resized).jpg

Hey Pinside Guru, Some idea ?

Tks a lot .

Hi Guru,
i found my card
piggyback is unsoldered, I proceed with restoring it.
Hope this works out.

Tks a lot