[Elecraft] Loss of speaker audio K3

[Brett Howard]

Ok I was wondering if you were running something older than 3.14...
Being that there was a new speaker protection system put into place in
that version:

* SPEAKER PROTECTION: If you’re set up for stereo speakers
(CONFIG:SPKRS = 2), but insert a mono speaker plug, the right speaker
output will be shorted to ground. This can cause excess current drain 
if you turn volume up to high levels. The K3 now detects this condition,
automatically turning off the right channel (SPRKS = 1). If the left
channel is shorted, the K3 will reduce AF gain and flash “HI CUR”.

Perhaps the software didn't catch the problem soon enough...

~Brett (KC7OTG)


On Sun, 2009-06-28 at 19:12 -0400, Toby Pennington wrote:
> Brett Howard wrote:   What version of the firmware were you running when this happened to you?
> 
> ~Brett
> 
> 
> Brett,  I was running 3.14 firmware.  I got a HI CURRENT warning  on the display and the speaker went out.  Headphones still worked OK.  
> 
> I noticed after the incident that the headphone plug was loose and was slipping from side to side.  I tightened the nut up but it was too late to help any.  My rig was a factory built unit,  so was surprised something like that was loose.  
> 
> There have been two other reports of lost speaker audio  just this weekend,  so be on the lookout for loose nuts.   
> 
> P.S  I thought we all needed a laugh!    Toby  W4CAK
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