[Elecraft] K3 sub audio issue

[Bill Hammond]

Hi Jim, Been awhile!!!  I would sure take off the top and reset those pesky little coax jumpers.  Step two if nothing found I would remove the sub RX and reset it in the connectors and again reset those pesky little coax connectors.   
My 2 cents.

73, Bill-AK5X 
Sent from my iPhone

> On Oct 19, 2025, at 5:30 PM, Jim Hoge via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> Greetings,
> 
> I am hoping that this is just something I have overlooked. I have no audio, either through speaker or headphones on my sub receiver. Main receiver audio is fine. Yes, the display shows sub, the squelch is off/down (never used), and the volume control is up. I notice that when the sub volume knob is rotated, I will go from nothing to hearing background noise, like a dead band but no signals. The radio functions in split mode on transmit. Hitting the reverse switch will swap VFOs but the sub audio remains dead.
> 
> Any ideas or is it time to send in to Elecraft?
> 
> Tnx es 73,
> 
> Jim
> W5QM
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