I have V1 915Mhz radios on my quad.  I recently crashed and damaged a component on the airborne radio and can't find a schematic to determine which part it is.  The radio doesn't turn on, and it appears as though the damaged component is in series…

I was flying the other day and was coming in to land in Stabilized mode, I switched to Alt Hold and it was as though the throttle was cut and the quad started to fall, I switched back to stabilized in hopes to recover and by then it crashed.  A…