fixed?
Well, I'll just have to put this in the "What the H3LL?" folder.
After swapping various things to various ports and verifying everything is OK, and all setup menus look OK.... I connected a test lead from the transponder case to ground.
It worked. No more red X and there is serial communication.
Powered it off, removed the test lead, powered it back on..... still works. WTH?
Even before connecting a test lead from the case to ground, I had good continuity. So, I don't know. I'm moving on.
__________________
Jeff Caplins
California
RV7 N76CX
(started: Feb 2002 --> Completed: May 2016)
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