[Elecraft] K3 Strange power switch behaviour

[Stephen Prior]

A funny thing just happened.  I went to turn on the K3 for the first time
today and when I turned the psu on, the radio sprang to life straight away
without having to press the power button.

Than when I press the power button to switch the K3 off I get a bright blank
screen and it will not turn on again until I disconnect and reconnect the
12v psu!

Other than this behaviour, the K3 appears to function normally.

I did have to swap over the dsp boards yesterday but it functioned fine
immediately after that, I know it did because I had to update the firmware
on the dsp board and I cycled the power normally after doing it.


Any ideas?  I'm confused.  I have disconnected everything from the front and
back of the K3 apart from the powerpole and antenna.

Thanks and 73

Stephen G4SJP