[Elecraft] Lost speaker audio in K2

[Don Wilhelm]

Steve,

Most likely the isolated contacts in your headphone jack have failed.
That failure has been discussed many times in the past.
If you are using a 1/8 inch to 1/4 inch adapter on the headphone jack, 
don't do that anymore, the weight of an adapter exerting side forces on 
the headphone jack is suspected to cause pre-mature failure.  Build or 
buy a short stereo extension cable and put the adapter on the cable.  A 
right angle 1/8 inch jack at the K2 end may be a help.
For some reason, a few folks have experienced multiple failures of the 
headphone jack while others had had no problem at all.  The real reason 
remains a mystery to me.

73,
Don W3FPR

Steve Kallal wrote:
> I just lost the speaker audio in my K2/100, but still have audio through the
> headphone jack. Switching to the regular cover and speaker doesn't help.
> Looking at the schematics, it looks like the headphone jack could be faulty.
> The speaker audio runs through the headphone jack and bypasses the speaker
> when a headphone is plugged in. It looks like the headphone isn't returning
> the audio back to the speaker line when the headphone plug is removed.
>
>