[Elecraft] K3: Right paddle key not working?

[James Sarte]

Hi Gene,

After following Don's advice to do an EE Init and reload, I still had the
same problem.  I then removed the bottom plate and checked RFC3 and RFC4.
Continuity check shows that RFC3 is ok, but RFC4 has no continuity.

How did Gary suggest you fix RFC4?  Did you resolder the choke?  If so, how
did you do it - from the bottom of the board where the choke is mounted, or
did you have to solder from the other side?

If it's from the other side, wow.. I'm not looking forward to tearing the K3
apart.  That's a lot of work.

Pse advise.

Mni tnx es vy 73 de James
K2QI

On Sat, Nov 13, 2010 at 9:04 PM, Gene Langendorff <k6ttm at sbcglobal.net>wrote:

> I had the same symptom on my year old newly completed K3 kit a few months
> ago (S/N 3172).  With Gary's guidance found the trouble to be one of the
> surface mount chokes (RFC3 or RFC4) between the paddles jack (J12) and the
> board needed resoldering.  Check for continuity with your ohmmeter and you
> will probably find one of them not connected.  Carefully resolder each end
> while applying downward pressure, one end at a time, and it should work.
>
> Gene K6TTM
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm
> Sent: Saturday, November 13, 2010 5:58 PM
> To: James Sarte
> Cc: Elecraft
> Subject: Re: [Elecraft] K3: Right paddle key not working?
>
>   James,
>
> Based on your other posts to the reflector where you checked continuity
> inside the K3, I would suggest a new download of the firmware, save your
> configuration, then do an EE INIT.  Install the firmware via K3 Utility,
> restore your configuration and see if anything changes. If that fails to
> correct it, an email to K3support at elecraft.com is in order.
>
> Why do these things always happen on the weekend??
>
> 73,
> Don W3FPR
>
> On 11/13/2010 8:09 PM, James Sarte wrote:
> > Hi Don,
> > I just did that.  I can short tip to ground and get dits, but shorting
> > ring to ground produces nothing.
> > Looks like there's something wrong with the K3.  What should I look
> > for at this point?
> > Tnx,
> > James K2QI
> >
> > On Sat, Nov 13, 2010 at 7:52 PM, Don Wilhelm <w3fpr at embarqmail.com
> > <mailto:w3fpr at embarqmail.com>> wrote:
> >
> >      James,
> >
> >     Remove the key from the equation.  Insert a stereo plug with the
> >     ring soldered to the sleeve.  Does the K3 make dashes?  If so,
> >     then you can blame your paddles and their plug.  If not, then
> >     there is something wrong with your K3.
> >
> >     73,
> >     Don W3FPR
> >
> >
> >     On 11/13/2010 6:53 PM, James Sarte wrote:
> >
> >         What am I doing wrong? I hooked up an old iambic paddle to the
> >         K3 a few
> >         moments ago.  Left paddle works fine; gives me a string of
> >         dots.  Right
> >         paddle doesn't do anything.  I checked continuity on tip,
> >         ring, and ground
> >         and everything tests fine.  Is there something I'm not doing
> >         right with the
> >         K3??
> >
> >
> >
> >
> > --
> > 73 de James K2QI
> > President UNARC/4U1UN
> >
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-- 
73 de James K2QI
President UNARC/4U1UN