Originally Posted by gsholz
The schematics most likely are proprietary. But if you are handy, here is an excellent video explaining and repairing a similar inverter
Yes, I watched this already. The schema is not for me, but for an electrician, who is trying to fix this unit for me. My engine room was sprayed all over by a broken cooling hose and the Magnum is ' not responding '. At least the ' pass thru ' feature is not working, so I don't have shore power available using this. I have ordered a replacement, but I would not mind to save the damaged one, too, for future installations.