[Elecraft] K3 - no output power

[Wes]

Does it receive?

Wes  N7WS

On 3/24/2021 1:03 PM, Christian Janssen DL1MGB wrote:
> Hello,
>
> it happened during the Russian DX Contest last Saturday, from one second to another. No output. When I tune the display looks like this: http://dl1mgb.com/temp/k3_no_power.jpg
>
> Following conditions:
>
> - sending into a 50 ohm dummy load
> - no matter how many watts are set with PWR knob
> - Test mode off
> - TX INH off
> - all driver transistors working (three screw test)
> - no output power also on external watt meter
> - happens on all bands
> - happens with KPA set to "not inst"
> - knocking on housing doesn't change anything
> - when starting the antenna tuner, it says 5.0 watts, but no output on the external watt meter
>
> I am running out of ideas :-)
>
> 73s Chris DL1MGB