[Elecraft] KAT100 Initial Test Failure

[Curt Milton]

I am at step 1 of KAT100 testing.  When K2 is turned
on, indicators default to Ant 1 and Low Power.  I cant
get them to change, as my ATU is unrecognized.  I am
using latest firmware.  I have traced the Aux bus from
my K2/100 board all the way into the KAT100.  I
reflowed all the solder joints at the MCU, and even
replaced the MCU.  When the K2 goes into transmit the
4 MHz clock does appear.  I am lost as to how to
proceed.  Has anyone run into a similar malady?  I
didn't try taking off the front panel board, but I
think I have tried everything else.  How do I know my
K2 is producing a useful aux bus to communicate with
the KAT100 ?  My K2 is #2117 - yes I did modify the
resistor required on the K2 control board.  



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