[Elecraft] K2 VFO Freq Display Stuck (again)

Don Wilhelm w3fpr at embarqmail.com
Fri Dec 30 13:21:11 EST 2011


Casey,

Since the ENC B does not go to a high level, you may have a bad firmware 
IC - Control Board U6
Try removing the CB U6 (use good anti-static procedures) and measure the 
ENC B line again.  If it goes both high and low, the encoder is good, 
but the firmware is bad.

Hold off on the Master Reset until after you resolve the firmware or 
encoder mystery.
You may be able to access the menu items using the BAND+ and BAND- 
buttons even if the encoder does not change anything.

73,
Don W3FPR

On 12/30/2011 12:59 PM, Casey wrote:
> Don,
>
> 8T line is fine, zero volts.
> Enc A voltage varies with turn of the encoder (approx. 5-.3V), but Enc 
> B does not (.09-.11V).
>
> How can I get to the menu settings without a working encoder?
>
> 73,
>
> Casey
>
>


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