If by "middle section of the plug", you mean the ring (between tip and
shield), that's the right channel. Do you have the sub-RX? Maybe you
turned it on, but have its AF gain all the way down?

    ~Iain / N6ML



On Thu, Sep 9, 2010 at 2:14 AM, Richard S. Lindzen <rlind...@mit.edu> wrote:
> I have a pair of KLH speakers connected to the rear speaker jack on
> my K3 (#911).  They were working fine, but I just noticed that the
> left speaker (connected to the middle section of the plug) ceased
> functioning.  I tested the speakers and they are working, and I
> checked the connections to the plug which also checked out okay.  The
> built in speaker on the K3 works fine as do headphones.  Has anyone
> run into this problem?  I'll try a different plug, but somehow I
> suspect that the K3 is no longer providing output to the left speaker.
>
> 73, Dick
>
> Dick Lindzen, WO1I
> Newton, MA USA
>
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