In trying to troubleshoot a power loss issue I’ve been having with my mobile robot platform I flubbed in a big way. I managed to get the polarity going into the power jack of the dev kit board reversed. The question is, is there reverse current protection on the board? If so, what am I looking at in terms of repair?
There is a MOSFET, Q30, as you can see in page 27 of carrier board schematic. It can isolate DC jack input when polarity is reversed.