[Elecraft] K2 - Problem With KAT2 Installation

[Don Wilhelm]

Peter,

In that case, I would suggest looking at the control board to see is 
there is something awry there causing a path to the AGC circuits below 
P4.  Also you might check the VRFDET signal line on the KAT2 - hint, 
removing R6 should disconnect the VRFDET signal line but leave the cable 
connection present.
Check the cable for internal shorts between the conductors with an 
ohmmeter - that might happen in storage if the cable was sharply bent 
and insulation creep occurred.

73,
Don W3FPR

Peter Barville wrote:
> Many thanks once again Don.
>
> I agree with your thoughts, but KAT2 is currently a 'stand alone unit' 
> with the RF connectors not connected. I'm only connecting J8.
>
> So, like you, I am at a loss to understand what is happening.
>
> Even with a very strong (and loud) signal at the Rx input, no audio is 
> present when J8 is mated with P4. Just a full scale reading on the S meter.
>   
>