GTX 335 Xponder Error Message Resolution

GTX 335 Xponder Error Message Resolution
This repair video will cover the GTX 335 transponder. Some of the information presented may also pertain to other similar transponders.
Total of 30 minutes for this repair.
Few have up to $1000 to throw at this problem. Nobody seems eager to work on this resolution regardless. It’s really infuriating. However, it’s important to be knowledgeable in every aspect of the owned aircraft.
As always, it’s important to keep checking for the effects of vibration. Looking for loose screws is something that’s routine, and more importantly, looking where they are not usually visible for routine inspection.