i recently purchased a bally 5000 nickel machine. when i first got it, it was working but would go to reel tilt after 2 or 3 spins. i would reset it and the same thing would happen. i was told that since the machine was idle for about 2 years, i should lift the eproms and reset them just in case the prongs had a bad connection. while doing that, several of the prongs on the U12 and U15 proms broke. i went online to buy the U12,15,18,and 20 proms from vendors who reproduced them. i also bought the U12 and U 15 clear proms. i went thru the ram clear process but it did not clear and the display panel showed 2 lines of funny characters, and no error message. i am not a electronics nor have any knowledge about slots. can anyone offer me smoe advice as what could be the problem.