Completed enough connections to the instrument panel to start power on testing. Verified separate power 1, power 2 and ground connections to the GMC, GDU, GSU, GEA, GAD 27, GAD 29, GNX, and GTR before powering up combinations of those components. Also checked power 1 and ground connections to the G5, CO detector and GSA 28 roll and pitch servos.
I needed to test power 2 connections separately before connecting all the power 2 connections together into one backup power bus. I needed to test all the ground connections separately because each device can also connect each other device to ground through the shield and chassis grounds. I wanted to verify I hadn't missed any individual connections.
Then I started powering up combinations of instruments and configured and verified the following connections using clip leads and switches or knobs:
GAD 27 discrete inputs.
GAD 27 dimmer inputs and outputs.
GEA discrete inputs.
GTR discrete inputs.
I started checking GEA general purpose inputs and configurations.
I learned a lot about G3X setup and configuration. It makes a lot of sense to me although I am still not able to find where to set and test the flap control inputs and outputs.
I found Revision AT of the G3X installation manual had been released. I downloaded and reviewed changes. Most were related to the new GHA 15 Height Advisor which I do not need.