This is in for a light feature not working and unknown noises.
Update: I found the noise coming from a gear set with a broken gear. This unit controls the spinning lights, ball kicker, and a few other things. The broken gear is not repairable, so it must be replaced.
A donor machine has been acquired for the gearbox and spare parts. The gearbox has been swapped out. Playfield has been swapped out as well, because it was better looking than the original.