[Elecraft] KX1 40m band not working

[Don Wilhelm]

Dave,

One of the common problems that cause such "strange happenings" is that 
the firmware chip is not fully seated in its socket.  It will cause 
problems not only with the display, but also with the DDS frequency, so 
you may hear receiver noise and a few birdies, but no signals.

So the firmware chip seating is the first thing to check.  It takes a 
fair amount of pressure to seat it, and when the 'deed' is done 
properly, there is only a small amount of the more slender part of the 
chip leads visible above the socket.  First make certain that each lead 
is started into the socket, and then hold the fingers of both hands 
under the board and apply pressure evenly to the chip with both thumbs.  
You should feel when it finally seats into position.

73,
Don W3FPR

djmd at fuse.net wrote:
> Hello all, first post to the list.
>
> Unfortunately it's due to a problem with my just-built KX1. I had no trouble building it... the phase 1 and 2 tests went fine. But after completing the assembly in the last part and putting it in it's case, I powered it up and got a very loud buzz through the headphones, and saw some weirdness with the display... I turned it off and removed it from the case and powered it back up - and it seemed to be ok, but now I cannot hear the signal from my other rig in the 40m band. I hear a normal sounding noise floor, and the occasional birdie, but not the CW. 20m seems just fine.
>
> I have not tried to do the transmit tests yet. 
>
> Does anyone have any suggestions before I give elecraft a call? I really appreciate any help! I'm been really excited about getting this thing finished and working, so as you can imagine I'm pretty bummed out. Thanks again...
>   
>