[Elecraft] K2 - 20M dead

[Mike Murray]

I thought I'd give a RTTY contest a try this weekend so I dove in.  Found
out after switching to 15M that I had my filters wrong so had to stop, open
up the rig and reset.  Everything seemed to be OK after that until I tried
transmitting on 20M - dead as a doornail!  Receives on 20 just fine,
transmits OK on all other bands, but nothing on 20 in any mode.  Even
occasionally shows hi current on 20 with no actual RF output.

Anyone have any idea on where I should start troubleshooting?

Mike - W0AG