I know this has been asked before, but I have yet to see a solution to the problem. TMNT has 3 settings for lighting the TURTLES letters:

Easy: Any lit letters from previous game stay lit for the next played game.
Factory: Any lit letter stays lit between each of the three ball until the game is over, but after the third ball and the game is over the letters reset for the next game.
Hard: Any letter lit on one played ball resets before the next ball.

The problem is the factory setting doesn't seem to work. The factory setting acts like the hard setting. I believe this feature worked correctly before I changed the batteries for the first time and did a factory reset (it was at least three years ago so I can't remember). I have gone through the adjustments and have found nothing. I pulled both the 5B and 5C PROM and reinstalled them. It is the most up to date code I know of 1.04. Does anyone know how to solve this issue as I have been looking for the solution on and off for years. Thank you for any input you wizards can come up with.

Monk

Bump for any possible ideas or for any TMNT owners that aren't having this problem, please post your settings. It could very well be that I forgot to switch a setting over.