[Elecraft] K2/100 Shuts Power Down

[Larry Phipps]

Just a total shot in the dark... but what is your SWR like on 15? It 
could be stray RF causing your power supply to shut down. I would check 
my grounds, and also maybe a different supply, or battery if you have 
one that will handle the power.

Larry N8LP



Patrick DalPorto wrote:
> The K2/100 has been working very well for a couple of years but it has developed a problem.  I was on 15 m. SSB and made a quick call and the rig made a noise, shut down, and restarted.  It had shifted frequency and the fan was running when it came back on.  I readusted the tPA.  When I try to tune the radio at low power it tunes but will shut down very shortly.  
> I thought I may have a bad diode in the SWR bridge but D16 and D17 seem to be fine when checked in the circuit.  Is it necessary to remove them from the circuit board to check them properly?
>
> Anyone have any clues where I can start looking for the trouble.  I have put the low power top and tuner back on the rig and it works just fine.  I also tried the KAT100 and another tuner and the result is the same.
>
> 73,
> Pat W8FV/5H9PD
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