Quoted from EMsInKC:

I'm not at home and don't have access to my schematic. I'm not sure that I'm understanding you correctly. Are you saying that the middle and bottom special and advance lights never work at all?
I would assume that those are all controlled via score motor switches via the targets on rollover. Each time you hit a target, it's going to move the score motor 120 degrees. Gottlieb used the ability of the score motor to rotate 120 degrees to do alternating features like this.
I assume the bagatelle is all working correctly and you can advance the sequence properly? Is that what you mean by "roll through?' That is a stepper under the playfield. If you are able to get through the sequence and get the specials lit, then the stepper is working correctly and you're just not getting lights for some reason. That could be bad bulbs, bad lamp sockets, or the stepper circuit board is dirty or the contacts aren't making good.

Quoted from Runbikeskilee:

Is the game configured for 3- or 5-ball play?
That section of the schematic is a little complicated without knowing the 3- or 5-ball setting, but I would start by inspecting the make/break switch at motor position 3E. It will be right on top and easy to see. There should be an or-blk wire on one tab and a br-blk wire on the other. Make sure the switch is changing state and the contacts are clean. Also check to see if any wires are broken off at the tab ends. Let us know if that helps.
Lee