Killert6969
Active member
I installed a new switching supply in my defender cab. I bought the williams conversion dongle from Bob Roberts. The unit powers on, cycles through it's self check and passes. The final screen states press advance to cycle through the self tests or one of the other coin door buttons to save. however, not of the coin door buttons work. I traced the wires and some of them are plugged into the linear power supply board. Since I am bypassing that board all together, I am assuming I need to connect them to the power supply. When I looked up the schematic in the defender manual, the voltages do not match up to those displayed on the back of my happs switching power supply. Any direction to get past this screen would be appreciated.
