First thing is to do a hard reset.
Then replace all of the capacitors on the A9 board.
When those caps fail, they cause all sorts of odd problems.
Gary
> On Apr 30, 2019, at 9:09 PM, Byron Cordes via TenTec <tentec@contesting.com>
> wrote:
>
> Hello everyone.
> I have a Orion that has a tx audio problem. 4 pin Mic
> Key mic and I get a pulsating sound , the alc flashes with the sound. If I
> turn down mic gain to under 10 pulse slows down and is weaker alc light.
> Have unplugged mic and grounded pins 3 still the same .Any ideas?
> Thanks Byron AC9PA
>
> Sent from my iPad
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