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GTN650XI not transmitting

Maverick972

Well Known Member
Just throwing a shot out in the dark as I really don’t know where to go on how to troubleshoot this.

I installed a new GTN650XI and had Approach fast stack do the wiring. After a tremendous amount of trouble shooting the 650xi work great with my GRT and my TT autopilot...

The unfortunate part is the 650xi is also my comm 1 radio. It receives audio perfect but will not transmit.

I have a second comm a PAR100 EX which serves as my audio panel and comm 2 with remote radio.

Any help as to where I should start to troubleshoot would be helpful, I thought about calling Approach fast stack but at this point I would rather get a root canal.

Thanks in advance, Sean
 
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