[Elecraft] K2 Front Panel Issue

[Geoffrey Mackenzie-Kennedy]

Steve,

Maybe a long shot, but try removing U6 (Control Board) from its socket and 
plugging it back in again - with power off of course while you do this :-)

My K2 "froze" in similar fashion about 2 years after I had built it, and the 
cause was poor contact between one or more of U6's pins and the IC's socket 
due probably to "corrosion". The type of socket used does not provide a "gas 
tight" connection, and pulling and reseating the IC should clean the socket. 
Even unused sockets of this type can sometimes cause "problems".

73,

Geoff
LX2AO  (aka GM4ESD)



Steve KW4H wrote on December 22, 2011 at 4:24 AM:


Yup, the firmware comes up -- I get the "elecraft" signal in the display
and then the usual 40 meter freq.  After that, the display is frozen with
the frequency display and the buttons do nada.

My best guess is that it's probably something simple like a missed solder
connection (it happens to all of us!), but so far I've not found anything,
and all the boards passed their resistance checks.

Steve, KW4H