haha NDA on that

ok if you wanna circumvent a NDA, the thing you do is this
get a fine bushy brass brush, get a long ferrule and a thick gauge wire
Insert the wire into one end of the ferrule and a bunch of brass bristles in the other end. Insert the ones you cut off the brush (the cut section) downwards (they are really sharp and you wanna hide them inside of the crimp), crimp it. Solder a banana jack to the other end of the wire. you can also cut a whole bunch of strands of brass wire if you want, this is just easier to use a brush. Its fairly stiff and works much better then trying to use the copper in a wire to make some kinda sweep
Now you have a measuring broom that you can sweep a PCB with. The only other secret is you wanna clean the board really good so it makes fast contacts. This makes pin mapping much easier on repair, something most people need nowadays because the idiots got missile guidance systems and boring industrial back end bull shit confused
so if you don't have schematics for boring industrial BS, its so much more tempting to buy 4x chiense ones and swap em in because you don't wanna deal with calling lambda lol