How to visual inspect the extended POST.
1: Enable the extended POST (done in 'service/self test*)
2: Restart the antenne
What to look for.
1: Azimuth axis will move a few degree
2: X-elevation axis will move a few degree
3: Elevation axis will move a few degree.
If any of the axis keep on moving for more that 10 sec and the stops, without going to next axis. Replace the motor/encoder
After the first motor calibration the axis calibration will start.
1: X-elevation axis will 'endstop to endstop and back to zero'
1: Elevation axis will 'endstop to endstop and back to zero'
1: Azimuth axis will go '360 deg and back to zero'
If any of the axis fails to perform the above calibration, it will stop and the POST is terminated.
Replace the motor/encoder on the axis witch fails.
If the motor/encoder replacement is not solving the issues: Replace the FDM
Make sure to follow the 'Field Replacement Procedure'