I pulled the RV-10 out of the hanger, so the GPS antennas would have clear line of sight of the satelites.
I enabled power in the VP/X to all the devices in the comm stack.
I configured the GTN650 and confirmed it was talking to the ARINC interface and all the EFIS's.
I discovered two problems. 1. The AFS GPS (aka Garmin 18) is showing a "GPS Integrity" error. 2. After a couple hours the GTN650 screen went dark. Repeat power cycles yielded no change in the symptoms. I decided to call it quits for the night and debug the problems tomorrow.
