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
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