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You said that PA and weather audio work just fine.



Did they break since then?


If not, looking at T1 and the audio chip is a total waste of time. If you have PA and weather audio, those two parts are working just fine, and the problem is well upstream from those parts.


I suppose somebody should snap a picture of the two ceramic filters so you can try the "Manual Digital Signal Injector" test described above.


Just learning the names of the pieces in there, and what they look like is a good place to start before trying to test any of them.


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