[Elecraft] K2 audio loss

[Tom Z]

I was working a contest this weekend and at one point the audio in my
K2 just stopped working. No audio on headphones or internal speaker.
At full volume I could hear a slight trace of noise on the speaker. I
reset power, and the audio came back.

I guess I should have checked the external speaker jack, but in my
panic, I did not.

Does this sound like it could be the infamous headphone jack problem?
When that does fail, does the external audio still work? I can not
risk a failure during a contest, so I wonder if I should replace it.

73,

Tom KG3V