4RJN Posted December 10, 2022 Report Share Posted December 10, 2022 2006 CTSW King KY79A Radio Symptoms: No audio out No Side tone Keying Mic does turn on airport lights Can hear traffic on the frequency Intercom works Radio lights up TX You can hear the mic keying on a handheld radio Tried: 3 different headsets have been tried Plugged headsets into each seats jacks Tried both broadcast buttons no help Any thoughts? Thanks Quote Link to comment Share on other sites More sharing options...
cbo Posted January 17, 2023 Report Share Posted January 17, 2023 I had something similar. Do check the antennae plug/coaxial cable, an swr meter also comes in handy. Good luck...-chris Quote Link to comment Share on other sites More sharing options...
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