[Elecraft] K2 Question - First Power on test results

[AJSOENKE at aol.com]

I am at the first power on test stage of K2 # 6281 and have anomalous  
readings.  Should be INFO 250 or 7100.0 c 
What I get is  ELECrAFT  followed a few seconds later  by  0 ? 50.0  c (or 
u,r,etc)
 
Turning VFO dial does not change frequencies as expected but changes to 1 5  
15.1   and other strangeness.
 
After that I can hit DISP and read normal voltages. Power display works  when 
power adjusted, keyer speed adjusts ok. RIT/XIT is adjustable but the  range 
is like 23253 +/-.  So, many things work correctly for a rig that's  only 
partially built, and other things are incoherent. I can access menus and  use 
edit. Most things are OK but no frequency display that makes sense.   Component 
value and placements checked and rechecked and all solder connections  reflowed. 
 MCU chips 1.09 and 2.04 swapped with working K2 and replaced  with no 
indication of fault.
 
Due to all the playing around with the FP and Control Board I am suspicious  
that the eeprom may have been exposed to some random resetting that is 
confusing  the issues.
 
Does anyone have a 'reset to default'  procedure that might take us  back to 
the starting point?
 
Anyone else ever see this kind of behaviour?
 
I have half a dozen highschoolers who are afraid they have broke the pooch  
but I can find no visible signs of an error.  ESD practices were  scrupulously 
adhered to and swapping parts with a working K2 hasn't uncovered  anything, so 
far.
 
73,  Al WA6VNN 



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