CGA2RGB

I got the unit but setting all switches to low for CGA i get a rolling image but if i set 4 to HI get a desent image only the top is distored and jittery (Yes im aware it could be a issue with the gbs8200.) But I wanted to know what the switch 4 sets and is it safe to run that way long term.

https://imgur.com/T5xDcja When 1-3 are Low and 4 is Hi see the lop of the screen is off set/jittery

Trying to use the convertor I've found the CGA connector with two nuts, and also on my XT, so I've replaced the nuts with bolts.

So, Now I can't plug any vga monitor cause is a male plug, I'm doing something wrong?. Should I replace the plug, or find some female-female vga adapter?.

What I'm missing?.