Thanks for the input and replies,
There was no mic connected when I made the measurements. Can anyone verify/ confirm that the Tip of the TRS MIC plug should be at 5v? I suspect QD1 as well .? The mic I was using was electret and needed a 3.3-5v Vin. That was how I found out the Tip was only at 2.1.
Any ideas are wlecome. Thanks everyone.?
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73.
