I am getting a random full reset on my STTNG.
It has Pinsound.
It is mentioning a "Sound Board Interface Error" and a "Check Left Return Lane (16)"
Reseat your ribbon cable between the MPU and sound board as well as the power connector on the sound board
This can most likely be resoved by adjusting the eddy board under the playfield, adjust it until the led on the sensor board just lights, then go back 1/8 turn.
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