Quoted from xTheBlackKnightx:A couple of more AGC knowledge general tips:
#1 Due to the way that the lamp matrix voltage is strobed, standard #44/47 bayonet 1 LED bulbs will NOT WORK with AGC machines similar to older games. You have to upgrade with a "smart LED" in order for the lamps to work at all. #555/T10 socket bulbs have no issues, nor do #89 multi LED bulbs at the 13 volt range. I don't know if any AGC games used #906. I am researching what the best LED option is right now for these machines that does not turn into "retina burning" and "unicorn pinata sharting" playfields, as the factory lighting for both GI and insert lamps is sub par in my opinion. Additional spotlights, might be an additional improvement at various locations and could be a cheap fix.
I used standard Cointaker LEDs in my PTC without any issue. Maybe its a different lamp matrix then other A.G. machines?