[Elecraft] K2 Power Out

[JC Quinn]

I've had a problem crop up in that I get Hi-Cur warnings at any Power 
Setting over a couple of tenths of a watt yet an external wattmeter shows 10 
watts into the DL when the K2 shows 2 watts..  After checking V RFDET and 
finding voltage on D9 as well as pin 10 P4 and Pin2 U6,  I discovered a post 
from over 3 years ago about a failure in the KSB2 causing this problem. 
Removing the KSB2, reinstalling the jumpers and C167 and everything is back 
to normal.  I believe that the original poster thought that the U1 chip had 
got scrambled.
Before I contact Elecraft for a new IC, is there any way to be positive that 
U1 is the problem?  Right before the problem occured, I had the K2 connected 
to
an under-construction KPA100 for testing and final adjustments.  Possibly 
there was static or a spike of some kind resulting from the makeshift lashup 
with the KPA lying upside down beside the K2?
73
Jim  kc4ee at sonet.net