[Elecraft] SOS

[Milt Jensen, N5IA]

Any guidance appreciated.

I am finishing up the DSP and CW keying mods to two k2's for Field Day
operation.  Yep, I am somewhat of a procrastinator.

Anyway, one works very well.  The other comes up with the info 080 message.
All process of elemination efforts have been made by substituting boards
back and forth between both radios, including the new Firmware chips.

Result.  The problem in somewhere on the control board.  Everything else has
been eliminated.  Both mods call for changes to the control board, more for
the CW keying mod than the addition of the DSP modules.

I have done the requisite visual checks, all the resistance checks, and "in
operation" voltage checks as far as possible in the vicinity of the modified
areas and components.  I do not find any differences, anywhere.

Anyone out there have suggestions for specific things to check?  This one
has me stumped.  But then again, I may not be seeing the forest for the
tree.  So, any ideas from the worldwide brain trust?

Milt, N5IA