New K2 - two bad encoders

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New K2 - two bad encoders

Lou Voerman W2ROW
I am building a newly acquired K2. Everything was fine through stage 1
assembly and checkout. Upon reassembling after stage two the main tuning
encoder no longer works (turning the knob does absolutely nothing). I
contacted Elecraft support and Gary sent me a new encoder assembly. I
received it yesterday, assembled it and installed it, it also does not work.
At every stage I flush cut the leads on both the encoder PCB and the control
board and insulated with thick paper.

To add to the plot, I have an older K2 which I disassembled and removed the
encoder assembly from. I installed that encoder assembly in the new K2 and
it works FB. I also installed one of the new encoder assemblies in the old
K2 and it does not work (as expected).

Being in contact with Elecraft support I expect this will get resolved soon,
but I wondered if anyone on the list has any experience and/or suggestions.

Thanks,
Lou  W2ROW



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Re: New K2 - two bad encoders

Don Wilhelm
Lou,

The encoder itself is the same one used in the K3/K3S, so I think if
there was a bad batch of encoders in the Elecraft stock, it would have
been noticed and quickly corrected.

However, the board to convert the pulse count of that encoder to that
needed by the K2 is suspect in my mind.  It is 'firmware' and I suspect
that there may have been some unprogrammed ICs made their way into the
K2 encoder assembly packages.  Of course, that remains to be proven, it
is just a guess on my part.

Continue to work with support, it should be resolved soon.

73,
Don W3FPR

On 8/5/2018 8:07 AM, Lou Voerman W2ROW wrote:

> I am building a newly acquired K2. Everything was fine through stage 1
> assembly and checkout. Upon reassembling after stage two the main tuning
> encoder no longer works (turning the knob does absolutely nothing). I
> contacted Elecraft support and Gary sent me a new encoder assembly. I
> received it yesterday, assembled it and installed it, it also does not work.
> At every stage I flush cut the leads on both the encoder PCB and the control
> board and insulated with thick paper.
>
> To add to the plot, I have an older K2 which I disassembled and removed the
> encoder assembly from. I installed that encoder assembly in the new K2 and
> it works FB. I also installed one of the new encoder assemblies in the old
> K2 and it does not work (as expected).
>
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