Rys,

The first thing to try are the steps indicated in the K3 manual listing of errors.

If those do not help, and this is an older K3, try removing the front panel assembly (the KDVR3 manual page 7 has good instructions for doing that). If the pins on the front panel connector are tin plated, they should be replaced with the gold pins (Elecraft has a kit). In any case, removing the front panel assembly and simply replacing it will wipe oxidation from the pins and can restore proper operation.

73,
Don W3FPR

On 1/4/2020 2:02 PM, Ryszard Tymkiewicz wrote:
I have been using K3 for MANY years and the first time I got a message "ERROR DLL" ..there was a high noise level and I was not able to tune to stations. It was in my second QTH..when I got back home seems everything is OK. I don't know if it is a problem with contacts? If so which ones I should clean?
                                  73 Rys
                                 SP5EWY
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