i am using Orange-cube autopilot, in that i am facing problem with RCIN port which is not taking the input from RC Tx. I checked the connectivity between the controller port(500) and Connector(P304), there is a connectivity, but still controller not taking the inputs.
Make sure PPM is selected as the receiver output, or i-Bus if your receiver supports it.
Depending what receiver you have the PPM output will be on the Servo1 pins, or the i-Bus output will be on the horizontal “Servo” pins (to the right in this picture)