Nate,

Check to see if you have Control Board U6 in the right way 'round.  If 
it is backwards, the symptoms you report will be present along with the 
5 volt regulator getting warm (hot if you leave it that way enough time).
U6 usually survives that abuse.

73,
Don W3FPR

dogbulter wrote:
> I am having an issue powering the K2 on. I am on page 43 of the K2 manual. I
> do not have any display, audio, and I cannot hear any of the relays
> clicking. I measured the power at the dc jack and have 13vdc. I also
> measured the 5vdc and 8vdc power at the regulators. Both were good. I then
> proceded to follow the troubleshooting instructions in the book and
> everything else checks out. I listened to the 4mhz signal on another
> receiver and heard it. 
>
> Please let me know if anyone has any suggestions. 
>
> Thank you,
>
> Nate
> KA1YMX
>   
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