Essentially I want to cut off anything to the right of the red line. I need to know where the traces are for the switch, though, since I would be cutting straight through those traces.
Finding the traces is hard because the greenish-brown covers copper, which covers all the green, which covers the traces...at least it seems that way when I sand it...
I also need to know where to get video from, since that will get cut off, too.

(Sorry for the bad image, it's from my phone)
ANY help is welcome!
Thanks ahead of time
-ae
