No Signal to Motor or Steering Servo (Pixhawk)

@D_S_S wrote:

I have tried two configurations for powering my receiver & rudder servo. Neither config controls the ESC or steering servo.

Config 1. SBEC powers the rudder servo and receiver. No signal is received by the rudder servo or ESC.

Config 3. SBEC powers the rudder servo and the PPM encoder powers the receiver.
Should the PPM encoder power the receiver? In my case it does not.

The Pixhawk appears to be getting signal using Config #1 as there is input received when configuring the radio. What can I do to troubleshoot this?

Note: The motor is DC, ESC is Mtronics M30 Marine, TxRX is FlySky FS-GT3B

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