[Elecraft] K3 -- Strange speaker problem

[Jim Brown]

Hi Joel,

It sounds like you have phones plugged in somewhere. The traditional way 
of wiring rigs is that plugging in phones mutes the speaker (usually 
they're powered from the same output stage). The K3 has separate output 
stages for spkr and cans, and the switching is done by logic. Most of us 
who plug boom mic headsets into the rear panel assign SPKR + PHONES to 
one of the PF keys -- I use PF2. SPKR+PHONES is a toggle, so it either 
activates or de-activates muting of the speaker.

This is documented in the part of the manual that describes the menu 
system.

73, Jim K9YC

On 4/2/2019 5:44 PM, Joel Hallas wrote:
>   I
> was surprised to find I had no speaker audio with either internal or
> external speaker(s). My first thought was that I had somehow fried the
> speaker AF amp chip. But then I found that the speaker audio worked fine if
> the CONFIG were set to SPKR + PH = yes. That would seem to rule out the
> speaker amp as the problem.