Thanks for the input, i was able to track down the problem today. What i found was a bad Diode on the "#2" Bonus light, the Diode checked fine with my volt meter but seamed to leak low power back into the Red/Brown wire causing the drop target arrow LED to be dimly lit. Not enough power to light an incandescent bulb.
So this is how I tacked it down, I checked all the diodes but to now avail. I decided to un-solder the two Red/Brown wires from the arrow that was lit but shouldn't be. I then powered up the machine and started a game, when i touched one of the two wires back to the terminal I removed them from the light came back on, when i touched the other Red/Brown wire nothing happened, so I knocked down the 3 targets and the light came on like it should. With one of the Red/Brown wire still off i switched the game off and back on to put it into attraction mode and looked to see what other lights were off with this one wire disconnected, the "#2" Bonus light was not on, so i reconnected the Red/Brown wire to the arrow and unconnected them from the "#2" Bonus light. I then powered up the machine and started a game again the drop target light was no longer lit until i touched one of the Red/Brown wire to the #2 Bonus terminal then the drop target arrow light came back on and it shouldn't have unless power was back feeding, decided to change the Diode hooked the wires back up and all was good. This also corrected some other issues i was having with LED's, all is good now.