[Elecraft] K2 Side tone not working

[Don Wilhelm]

Dave,

The nasty "accidentally changed the sidetone source" gremlin has crept 
into your K2 while you were changing something else in the menu..
To chase it out, first lower that St L menu parameter to something more 
reasonable (like 15 to 20) or whatever your normal setting was.
Then enter the menu for St P, hold EDIT to edit the parameter - now tap 
DISPLAY to toggle the sidetone source.  Stop when you hear sidetone and 
exit the menu.

The details of this 'gremlin' --
If you have an older K2 that has not had the hardware sidetone source 
change installed (must be added when the KPA100 or KIO2 are installed), 
then your sidetone source is U6-25.  K2s greater than SN 3000 and those 
that have the sidetone source hardware change must use U8-4.  The latest 
firmware level 2.04R does not allow the U6-25 selection and all the K2s 
below SN 3000 must have the hardware wiring change installed.

This has been a perpetual support 'problem' - how about if everyone 
upgrades the firmware to 2.04R and make this one go away :-)  (Just kidding)

73,
Don W3FPR

Dave Barr wrote:
> The side tone on my K2 (sn 537) has stopped working... not a peep.  
> Also, the spot function is not audible.    I have checked the
>  "St L" (set at 50) and run it all the way up...  no side tone.  CW is 
> operating properly, internal keyer or externally.  Does anyone recognize 
> this problem, or do I just go in and check voltage levels?
>
> Thanks, and 73
>
> Dave K2YG
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