[Elecraft] K2: "Pop" when switching certain bands

[Jim KO5V]

Don,

I tap menu, then select t-r, then hold menu to move the cursors underneath the 0.00. I then tap Display and see 8r nor, then tap again to select 8r hold. Within a second or so, the display atomatically goes back to t-r with 0.00 underlined. I then tap menu twice to exit.

Please see my last email about the "10M"-20M. I meant 30M. I was evidently thinking 10Mhz...sorry.

I'll check the caps as you suggest.

Thanks again. 73,

Jim KO5V

>Jim,
>
>On the setting of 8R HOLD, are you exiting the menu after making the 
>change?  (tap MENU twice).
>
>You may want to look at the RF board schematic sheet 3.  All the 
>capacitors around U1 (The IO Controller) can be checked for proper 
>values (most are .001uF marked 102). Also check that they are all in the 
>proper holes (and not through an adjacent via hole).
>
>How are you switching directly from 10m to 20m?  With the BAND+/BAND- 
>buttons, you must cycle though 15 meters going between 20m and 10m, so I 
>am a bit confused by your statement.   If you are using a software 
>application to switch, remove it and test from the K2 buttons.
>
>73,
>Don W3FPR