Tom,
If U6 is getting hot, check for a short to ground at pin 1 or pin 2.
Both these pins must not have a DC path to ground. The DC voltage on
both pins 1 and 2 should be close to 1.4 volts. You can reach the pins
of all the components in the KX1 from the bottom of the board.
73,
Don W3FPR
Tom Pallen wrote:
I'm having a number of problems with KX1 options and I'm hoping to get
some guidance from the reflector participants.
The KX1 went together w/o a hitch. Performance matched my Elmer's old
rig and life was good. Then came the 3080 option that required
re-work. I followed the instructions and now there are problems.
* Can't Rx any signals at all. Not even WWV. But the Elecraft
signal generator can be heard on it's specific frequencies at both 50
and 1 uV.
* U6 can cook eggs on Rx!!
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