[Elecraft] Audio Pot Problem

[Don Wilhelm]

Steve,

Yes that does sound suspiciously like a missed or bad solder connection.
Take the front panel apart and examine everything reflow the soldering if
you can't locate it by inspection.  Don't forget about the connectors - and
the 'other side' of the connectors on the RF board as well - check the
control board connectors while you are investigating too - these Front Panel
signals mainly go to the Control Board by way of the RF Board.

73,
Don W3FPR

> -----Original Message-----
>
> Anyway this rig has one quirk I really want to correct.  I have
> done all the
> Elecraft recommended mods to this thing.  I was a bit hesitant to do the
> audio mod since I previously had plenty of it, but did that mod and also
> replaced all of the pots (5) on the front panel.
>
> Well since the mod, and replacing all of the pots, the audio is
> very touchy
> near the almost off position about 8 o'clock.  I have lived with it but
> noticed a few weeks ago that if I wiggled the audio pot the audio could be
> knocked down a lot,  almost to an inaudible level.  I also noticed at that
> time that I thought I might have had a grounding problem since when I went
> to adjust the keyer speed the volume would fluctuate.
>
> Well I played with it some more and it seems that whenever I "push" on the
> audio knob or the _keyer_ knob the volume goes way down. Yes the
> keyer knob
> affects my audio.  I am thinking to take the front panel off (again) but
> might order a few pots again before I do.  I can't believe the
> pots are bad.
> I wonder if I missed a solder connection.  Any ideas?
>
> Also, on Sunday I made my first two RTTY contacts.  That was
> really cool.  I
> used MixW, and have the K2 filter buttons and a centering command on the
> menu.  The RTTY mode really makes the filters work nice when you
> center the
> audio and DSP filters on your audio frequency.  I still don't know what is
> the correct maximum output in the RTTY mode!!!!  I have gotten conflicting
> advice.  I am use a muffin fan on the heat sink.
>
> Steve, W2mY/5
>
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