Hi Mike,
Did you check the powerpole connectors? On both sides: K3 and cable?
I experienced such power down when I changed my original 13.8V cord against a self made one, shorter and with higher cross-section to avoid the voltage loss in the cable. But the insulation was bigger than the powerpole inlet. As a consequence the contact did fit completely to the edge.
HTH,
73,
Christian F1GWR
Le 14 juil. 2018 à 01:24, Mike Furrey <
[hidden email]> a écrit :
> Suddenly my K3, upon touching the key will power off. When I power on, I can make a contact or two and then off again. This started with three hours to go in FD (operating 1D at home). Checking the archives it seemed it was a thermal problem so I partially disassembled the radio, cleaned out dust and reseated boards. I checked the p/s and swapped p/s and no change. The problem is not band or antenna dependent. The radio is not even warm when this happens.
>
> Any ideas before IARU contest starts tomorrow?
> Thanks, Mike WA5POK
>
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