I have a fireball2 it had sound today. I switched the GI with LEDs and now it has no sound. I don’t think it is the sound board as I put it in my embryon and it works it there. I put the embryon sound board in FB2 and it dosent work. When I turn FB2 on it has a quick one flash them 3 flashes then 2 . Then the green light is off like it is not booting. I checked all connections and fuses. Could it be the MPU? I just picked this pin up today.
0B63A388-0000-4240-A518-C1B26ECADC17 (resized).jpeg9648C98B-F169-4EDF-BDF1-E5CB9E2DA7D4 (resized).jpeg

Any ideas? I will try a altek MPU tomorrow and see if anything changes.

I put pinball life 555 warm frosted. I push the button on sound board and nothing. I put a altek MPU today. It is the same no sound.

Should the green light on sound board stay on after the 5 flashes?

I also put the fireball sound board in my embryon and it works in there. Could it be the speaker or connection at MPU or sound board.

Fixed the wire in the speaker going to woofer is off. Put a different speaker and all is good.

08F4A175-4D6B-45F8-ABFF-5249C8D4A7BA (resized).jpeg