Re: FT100D not transmitting

1K is too much.  The mic uses a 22K.  When I had the wrong mic on mine 
it was too small a value and it didn't work.  I swapped out the resistor 
in it for a 22K and it works great.

Vince.


On 10/31/2018 02:12 AM, keith.gooley-/[email protected] [FT100] wrote:
>
>
> I have an FT100D which will not transmit on any band. It doesn't even go
> into TX mode which means it will continue to RX when the PTT has been
> pressed complete with receive audio. The PTT signal gets to the
> appropriate input pin on the CPU, going from 4.5 V to about 1 volt.
> Pulling it to ground with a 1 K makes no difference. The appropriate
> output pin, HF/50TX or V/UHFTX doesn't change state. If anyone has any
> ideas, I would appreciate hearing them. The only thing I can think of is
> that the CPU is faulty but the receiver works fine.
>
> 

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