i dont know a lot about these. when i first got it, the first reel would never stop after a pull. traced it down to a bad pin in a connector on the driver board. its coins up, will take up and register up to 5 coins. handle unlocks, reels spin, and stop in sequence. then thats it. it never finishes the play , or pays out on a winning combo. at that point, it needs a reset. however, a reset does nothing. if you hit the test button, then reset, it does reset and is ready for more coins. then, same routine as above, it never finishes a started spin.
wierd. ps- battery new, no corrosion
thanks