I'm having an issue with my back plastic GI by the back of the playfield. All other GI works on the game. The back GI is off normally before the plunge and once the ball hits a switch the upper GI on the playfield turns on( I believe this is when the BackPlastic GI should turn on as well). The flashers on this section works perfectly.
I checked all fuses and they are working. Any suggestions here? I was reading something about a relay that can go bad which causes this problem. Any help would be appreciated.