Servo Matching Problem

  • I am attempting to set up a new Powerbox Royal with my Spektrum DX20. I have bound the transmitter as DSMS and mapped the outputs. I can't get the Powerbox to "see" the associated flight (gyro)channels. When I attempt to initialize a channel and move the transmitter sticks - nothing happens on the display. This is the case for all of the flight channels intending to use the gyro. The "direct" functions like throttle, gear and brakes seem to be working fine with the powerbox. I'm sure I'm overlooking something simple. Thanks