"I found a 20 amp ceramic fuse to test the PD9280.
Connected the black (hot) and white (neutral) to an AC two prong plug, (left the green ground disconnected), and the fuse blew.
The only difference is when the PD9280 was installed the black, white and green wires were connected to the correct connections of hot, neutral and ground from the AC dist panel.
I only tested using using hot and neutral wires and didn't check to see if the black and white were connected to hot and neutral from AC.
I'm wondering if I should test again using a three prong AC plug connected to their respective wires, black (hot), white (neutral) and green (ground) from the AC?
* This post was edited 05/16/18 05:53pm by Andonso * "
The 120v cord must be damaged back from where you cut it and can't see the damage to the individual wire coverings of the black , white, and green wires.
You have a 120v fault that is blowing that fuse, so the only thing left is that cord. It is not likely to be where the cord connects to the circuit board IMO. It is more likely to be farther out near the end where it was cut and since then it got wet out there. Perhaps now cut it way back shorter, and splice on the new bit of cord with a plug on it and try again.
The 6300 and 7300 converters just have black and white. They are grounded by their chassis as the "lower portion", but you don't need that to get them to work as such.
