[Elecraft] [PX3] Does not respond to the knob being rotated

[Brian Waterworth]

I will pile on and corroborate Steve's observations.  I too have noticed
the same behaviour on my PX3.  I don't use the knob all that often.  While
I can't rule out a mechanical problem, I did notice this slow versus fast
knob-turning behaviour after I loaded in one of the PX3 firmware updates.
It was likely the second to last firmware update currently available, but I
can't recall specifically which firmware update.

regards,
Brian
VE3IBW

On Tue, Oct 18, 2016 at 6:55 PM, Steve <sm.shearer.01 at gmail.com> wrote:

> I have seen a similar issue with my PX3 but it may not be the same or it
> may be related to the root of the problem.
>
> What I notice is what "in the old days" would be switch bounce. What I
> notice (like you) is when I turn the knob fast the value bounces around but
> doesn't go anywhere.  I find that if I turn the knob real slow it will
> work.  The knob is an encoder and must be seeing  CW/CCW pulses out of sync
> or something like that?
>
> Does slow work?
>
> steve WB3LGC
>
>
> On 10/16/2016 12:34 PM, James Austin wrote:
>
>> My PX3 no longer responds to the knob being turned. The only indication I
>> see when turning it is when the marker frequency is being displayed. When
>> turning the knob, the displayed marker frequency bounces back and forth
>> between something like 14.050.80 and 14.050.85.
>>
>> The PX3 is otherwise functional.
>>
>> Any suggestions? I opened it up and all the solder connections for the
>> encoder are solid.
>>
>> 73,
>>
>> Jim/KA2RVO
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