Hello to everyone, am new to all of this as I haven't worked on a fruit machine for over 30 years. I recently got given a Mazooma Monopoly wonders of the world machine which is running a scorpion 5 board. It is showing "Pay unit Err 17 as soon as it has initialised. I have removed the hopper unit and checked for loose connections all seem OK and the unit spins freely by hand. On the mpu all 7 led's are lit which if I understand correctly means that all voltages are being supplied. I am hoping someone may have a manual for this machine I could copy and also for any information on where/how I can start to fault find. The person I got the machine off said that it was working fine until they emptied the hopper and when they switched the machine on it started alarming.