My Bally supersonic outhole knocker and saucer coils not engaging, I have swapped working solonoid and mpu boards, same issue, I tested the wire on transistor and the coils engage. Any help please. Thanks
My Bally supersonic outhole knocker and saucer coils not engaging, I have swapped working solonoid and mpu boards, same issue, I tested the wire on transistor and the coils engage. Any help please. Thanks
Go into solenoid test and see if any solenoids repeat fire through the full sequence (look at # on display.... any duplicate solenoid with different #)
If so, this means your connection between the mpu and solenoid driver board input is missing a line and likely needs to be repinned.
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