Hi All,
Here are some pictures I have taken of the Inverter, Rectifier, Resistor section. I will take more picture later today. I am working on this power supply in my other house, the house is empty, and comes with 3 phase, but i am traveling daily to visit the PSU.
all the markings, is not made by me, so I believe someone tried repairing before
I have removed the 33ohm resistor here, you can see the other resistor at the edge
Good news is I managed to find the entire circuit diagram yesterday night, will scan and post it later. Regarding Inverter 3 and 4, it was isolated prior to turning on after resistor change.
The inverter does have a fuse, which is tested good. I have also fed 60 V directly to each inverter to see if there is any short and it has none. 60V is the maximum my PSU can deliver.