[KX3] Speaker buzz fix with pictures

[Tim Tucker]

Inspired by the KX3 yahoo group discussion yesterday on the source of the
speaker buzz in the KX3, I decided to try it out.  Here are my results with
detailed pictures:

http://www.worldwidedx.com/elecraft-kx3/142103-elecraft-kx3-speaker-buzz-fix.html

Tim
AE6LX


--
---------------------------------------
Owner, worldwidedx.com
AE6LX, Amateur Radio
NNN0ITA, Navy MARS
NNN0GAF FOUR, Southern CA Director Assistant for Training, Navy MARS
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[Andrew Moore-3]

Another method: Painter's tape (the blue stuff) - a strip along the two
horizontal seams to the left and right of the speaker (as it faces you)
cured the buzz here - and also one strip on the bottom edge under the
speaker.

I applied it over the edges, folded it down on the inside and outside
surfaces.

No bending, no grinding or filing. Only downside is your KX3 looks like
it's about to be painted.

Actually, black vinyl tape would probably do better, and would blend in
better with the case.

Note - this method is done most easily by separating the cover halves, but
as Ron mentioned, be careful with that ribbon connector when you unplug it.

--Andrew, NV1B..



 separate the covers (CAREFULLY.. as Ron mentions, that ribbon cable is
fragile).
On Sat, Jul 21, 2012 at 3:42 PM, Ron D'Eau Claire <[hidden email]> wrote:

> There's a way that does not involve any filing or grinding.
>
> I've found that the critical gap is the one at the bottom just below the
> speaker where vibration by the speaker can make the edge of the metal move
> back and forward, banging against the bottom cover.
>
> That is easily cured by separating the top and bottom (you'll have to
> unplug
> the flex cable and battery connector) and then, holding the top cover in
> your hands with the inside facing you, press your thumbs against the edge
> of
> the metal just below the speaker, bending it gently outwards. Repeat and
> check the fit with the top cover until you have a comfortable gap and a
> straight edge placed across the speaker lines up with the bottom cover on
> both sides. On mine, the gap was about 20 mils when the section of the top
> cover holding the speaker lined up with the bottom cover.
>
>

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[Tim Tucker]

I actually tried tape at first and wasn't as happy with the results.
Removing a bit of the case material seems to solve the root of the problem
rather than just deal with the effects.

Tim

On Sat, Jul 21, 2012 at 3:13 PM, Andrew Moore <[hidden email]> wrote:

> Another method: Painter's tape (the blue stuff) - a strip along the two
> horizontal seams to the left and right of the speaker (as it faces you)
> cured the buzz here - and also one strip on the bottom edge under the
> speaker.
>
> I applied it over the edges, folded it down on the inside and outside
> surfaces.
>
> No bending, no grinding or filing. Only downside is your KX3 looks like
> it's about to be painted.
>
> Actually, black vinyl tape would probably do better, and would blend in
> better with the case.
>
> Note - this method is done most easily by separating the cover halves, but
> as Ron mentioned, be careful with that ribbon connector when you unplug it.
>
> --Andrew, NV1B..
>
>
>
>  separate the covers (CAREFULLY.. as Ron mentions, that ribbon cable is
> fragile).
> On Sat, Jul 21, 2012 at 3:42 PM, Ron D'Eau Claire <[hidden email]> wrote:
>
> > There's a way that does not involve any filing or grinding.
> >
> > I've found that the critical gap is the one at the bottom just below the
> > speaker where vibration by the speaker can make the edge of the metal
> move
> > back and forward, banging against the bottom cover.
> >
> > That is easily cured by separating the top and bottom (you'll have to
> > unplug
> > the flex cable and battery connector) and then, holding the top cover in
> > your hands with the inside facing you, press your thumbs against the edge
> > of
> > the metal just below the speaker, bending it gently outwards. Repeat and
> > check the fit with the top cover until you have a comfortable gap and a
> > straight edge placed across the speaker lines up with the bottom cover on
> > both sides. On mine, the gap was about 20 mils when the section of the
> top
> > cover holding the speaker lined up with the bottom cover.
> >
> >
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

--
---------------------------------------
Owner, worldwidedx.com
AE6LX, Amateur Radio
NNN0ITA, Navy MARS
NNN0GAF FOUR, Southern CA Director Assistant for Training, Navy MARS
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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