Richard,
I don't know of any way to resurrect a failing encoder. The fact that
the switch works is entirely different - the switch function is not
related to the rotational function of the encoder.
I would simply replace the encoder.
As far as the fact that it works for the first 10 seconds after a power
up is not really significant, that depends on the starting position of
the encoder. If the output from the encoder does not cycle in the A to
B (or B to A) sequence, the control will not be smooth, even though
subsequent (through frustration) rotation of the encoder will produce
some results.
73,
Don W3FPR
On 12/30/2014 4:18 PM, SA2CIR wrote:
Thanks for informative pictures and writing! Yesterday the SPEED/MIC control
of my four months old K3 started acting like a scratchy potentiometer with
intermittent contact. I got quick response from Elecraft’s support and am
now preparing for a soldering operation similar to the one described.
What bothers me is that during the first 10 seconds or so after switching on
the K3 the turning response of this encoder is perfectly ok, and then starts
to degrade. This behavior repeats every time I boot it up. How come? The
pushbutton function works all the time. Soldering on the circuit board of
course involves some risk. Could the present encoder perhaps be resurrected
in some way, avoiding replacement?
Yes, I could send in the rig for warranty repairs but time and costs for
shipping back and forth over the Atlantic are not insignificant.
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