I recently bought this cats n' dogs igt s2000 for 200$ and I haven't been able to get the coin comparitor to take quarters. I've tried moving the quarter and reseating it to no avail. The white button underneath does work to add credits but even with reconnecting all the wires going into the comparitor multiple times I cannot get it to work. The LED light doesn't turn on when the door is shut completely, and I'm kind of at a loss for what to do. Side note I am rebuilding the hopper since it couldn't dispense any quarters.