[Elecraft] K3 won't shut off?

[Dr. William J. Schmidt, II]

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?

 

 

Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ

 

Owner - Operator

Big Signal Ranch

Staunton, Illinois

 

email:   <mailto:bill at wjschmidt.com> bill at wjschmidt.com