If you can read the block diagram (schematic) please show me where you think my opinion is dangerous. I did this (electrical) for a living for almost 40 years and I'm still alive and so are my electricians that worked for me when I was doing contract work.
You don't have to know AutoCad to send the schematic diagram. Just scribble on a piece of paper preferrably white and take a picture with a brief explanation why you think it is what you think it should be.
I'm waiting.
I want the schematic not the one you lifted
from the manual or Wikipedia.