The 3.3v pad on the PD2 is an input pin. It needs to be fed 3.3v from the PMShello. I checked the PMS-PD 2 and noticed that 3.3 volts gave 0 volts when I put it to pass. I'll assume that's not normal. I am thinking of buying another one and as soon as it arrives, I am going to put it to the test and if it gives 3.3 volts, solder it to the RVL-PMS to put it to the test and the same with all the power outlets and hope that everything works