[Elecraft] K3 won't shut off?

[Don Wilhelm]

I cannot be certain, but I would expect the production would be of the 
SMD variety rather than the discrete leaded diode that was used for the mod.

73,
Don W3FPR

On 12/31/2012 3:20 PM, Dr. William J. Schmidt, II wrote:
> So I connected my PR6 - 6 meter preamp to my K3 for the first time last week
> and work some DX.  At the end of the day I go to shut the radio off and the
> display goes blank (hear the relays disengage) but all of the LEDs are still
> lit on the radio. and it will not turn back on except to cycle the power on
> the power supply.  I discuss this with a friend and he reminds me that there
> was a MOD for K3's to put a diode on the KPA3 board for the 12V sense
> circuit, but after looking at the MOD sheet on the Elecraft website, it says
> that this MOD was incorporated into the radio as of 2009 (my radio less than
> a year old).  I remove the fans to check for the 1N4148 on P68A of the KPA3
> and it's not there.  So two questions. Has anyone else experienced this
> phenomena, and does anyone know. was that diode actually incorporated into
> the radio on the board somewhere else and mine is just bad?
>