Hi everyone, I've been struggling to fix my 1997 JPM Sonic the hedgehog fruit machine, so any help would be much appreciated.
Had it for about 12 years now and played fine up until this point, £1 coin payout has never worked, but thats another issue.
When I switched it on error 8.5 displayed (RAM Corruption) according to the manual. Then it wouldn't power up, only alarmed. I opened the back door and altered some DIL switches and reset the RAM by holding the test button for 20 seconds as you power it up. Now here is the bizarre part.. An IOU code came up: 134225920 TO. I then reset it again and the error code is now gone and it displays like normal, but it just gets weirder.. Every spin now brings in the jackpot and I have no idea how to get this back to its normal self. The APEM switches are all the same and is at 80%, but with bringing the jackpot in all the time, its registering and showing the Actual % as about 200 at the moment in test mode.
I defiantly think the battery needs changing on the Processor board, I literally haven't done anything to the machine since I got it as knew nothing, but now its gone wrong I'm learning, gutted really as these machines are getting rarer due to lazy idiots like myself lol. But I'm not sure if this leakage would cause such a fault as just spinning in the jackpot all the time, seems to be stuck on some kind of mode :-/ I've attached some pics of the battery damage also.
Thanks!
Processor board:
Could be the coin mech problem: Loose wire..
