I have a MK6 MAV 500 that I would like to change the percent payout on. The logic board is not an extended board. From the door side of the machine, the chips appear to be in the following order.
System Chip 1.03.12 U70 System chip U83
blank chip holder blank chip holder
Game Chip U72 Game chip U85
Game Chip U73 Game chip u86
Before I screw something up, I am guessing that I need to remove U73 and U86 and replace them with U3 and U2 set/clear chips respectively. Turning on the machine with the logic door open will then get me into the setup mode. Is that correct??? My wife will kill me if I mess her machine up!