I have a STTNG that the left canon light is no longer working. I put a new bulb in thinking that it may be that but no light still. I'm not sure what to troubleshoot next. I looked under the playfield to see if something came loose but I didn't find anything. I traced the red/yellow wires that are connected to the bulb socket down through the playfield where it connects with a 2 wire molex connector but I don't see any issues. Any ideas on what to look at next?