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
[EMAIL PROTECTED] 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...
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