Hello everybody let me start off by saying I am new to posting here but everyone is so awesome with helping I couldn't resist joining up lol. I want to say ahead of time thank you to everyone for your help, I have never posted here but I have read through a lot on here and you guys have been the best help ever and so informative.
Now on to the problem. I recently purchased a slant top Game Maker I believe its a 7200?? Anyways it would power on and boot fine/let me go into all the games ect but would not give credits for bills or coins.(However bill acceptor would take the bills fine same ad coin acceptor). The previous owner told me the bill validator and coind validator had both just been changed but the machine was never reset. He gave me a p-10 clear chip and I tried to clear but after putting the clear in p-10 and dips 7and8 up the screen would only show "reset dip switches, restart machine" I never got any menus or any other messages. So I proceeded to shut down, removed clear chip and reset dips back to off restarted and still no menus or anything. So I tried to do a clear today with all section 1 dips up with clear chip in p-10 and I also removed the battery jumper for 30 seconds before re-installing everything. I powered up and now I only have a blue screen that flashes with a small white rectangle in the top left corner of the screen. I have checked the battery voltage and its reading a steady 3.6V so I believe it is still good. I have even taken out the clear chip and switched all dips back to off but I am still just getting the blue flashing screen
I am thinking maybe the clear chip was no good since it wouldn't let me get into the menus but I am not sure. I will try to post some pictures too. Thank you guys and have a great day.