K3 Intermittent Line Out Audio

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K3 Intermittent Line Out Audio

Bill Kastler
I have had a problem for a while with intermittent Line Out audio from my K3.  Before I send in the radio for repair, I wanted to make sure I have identified the problem source.  It seems to center around the front headphone jack.  With no line out audio, I can sometimes put my headphone plug into and out of the front jack and the audio comes back on.   No changes were made to programs (MixW, JF65-HF, etc.) or radio settings.  I have sprayed DeoxIT on the jack with some success but over time the fix does not seem to last long.  Currently, however, I have had the radio off for about the last 6 weeks and it is now doing just fine.  Really aggravating!  Does it make sense that the headphone jack is the problem?   I could not find any reference to this problem in the archives.  Thanks!
 
Bill KF0IQ
     
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Re: K3 Intermittent Line Out Audio

Don Wilhelm-4
Bill,

A look at the K3 schematics will reveal that none of the Line Out
signals flow through any of the contacts on the headphone jack.
I believe your experience is just "happenstance" and the real source of
your problem will be found elsewhere.

73,
Don W3FPR

On 7/22/2015 7:26 PM, Bill Kastler wrote:
> I have had a problem for a while with intermittent Line Out audio from my K3.  Before I send in the radio for repair, I wanted to make sure I have identified the problem source.  It seems to center around the front headphone jack.  With no line out audio, I can sometimes put my headphone plug into and out of the front jack and the audio comes back on.   No changes were made to programs (MixW, JF65-HF, etc.) or radio settings.  I have sprayed DeoxIT on the jack with some success but over time the fix does not seem to last long.  Currently, however, I have had the radio off for about the last 6 weeks and it is now doing just fine.  Really aggravating!  Does it make sense that the headphone jack is the problem?   I could not find any reference to this problem in the archives.  Thanks!
>  
>

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