[Elecraft] Re: Sidetone not working

[Gil Gibbs]

  Has anyone had the experience of getting most things going OK, then 
gotten disgusted when the sidetone wouldn't work? My PRE/ATTN option 
works OK, but when I push the same button for more than two seconds, I 
don't get the sidetone anymore. I was using it for a little paddle key 
code practice over two weeks ago, before the flu hit me, and now it's MIA!

Any ideas, aside from replacing U2? That Front Panel board is a little 
complex to take apart "regularly", and I'd like to use my K2 on the air 
someday.

Thanks, 73's
Gil WA5YKK