[Elecraft] K2 control board U3 'hot' question

[sbm at ottix.net]

Greetings folks,

 	Just got myself a K2 (yay!) as it sure makes for a very nice rig 
and kit to build.

 	I've just completed the control board, front panel and the minor 
assembly on the RF board.  Upon power-up, there's NO smoke (yeah!) but...
I did notice that the area of the control board where U3 is located seemed 
hot.  At first I thought this was attributed to the regulators directly 
below it.  Instead, I'm now feeling (and I mean feeling!) that U3 is 
pretty hot.  I managed to just run the DISPLAY test to fetch the voltage 
and saw it show "E 17.8 i .68"

Now, I did test the power supply, and it's happily putting out 13.8V all 
the way through the RF board.  But it looks like a simmering U3 and the 
display are pointing to something wrong with the voltage and current 
sensing circuitry.  Am I on the right track?

Thanks