[Elecraft] Re: K2 #5652 speaker

[Jay Sissom]

I kept the first 5 or 6 mistakes I made to myself.  Fortunately, the
worse mistake I made only cost me an hour to get an IC out of the
wrong spot and $1.50 to buy a replacement for the one I destroyed
while removing it.

Now my secrets are out for all to see. :)

73
Jay


On 10/31/06, Darwin, Keith <Keith.Darwin at goodrich.com> wrote:
> Shame, shame, shame!  So you made a mistake, ea?  Welcome to the club
> :-)
>
> I *almost* completed my K2 with no mistakes.  Near the end of one
> building session, I had very carefully soldered a resistor into its
> place, trimmed the leads and as I checked it off in the book realized I
> had the right resistor in the wrong spot!  Perfectly mounted, nicely
> soldered & trimmed.
>
> And of course I lost a couple of parts.  Fortunately the spare parts bin
> had replacements for me so I wasn't held up.
>
> Oh yea, I had some bad solder joints as well.  Reheating a bunch of
> connections resulted in issues disappearing.
>
> I suspect that very few builders get through the kit having made zero
> errors.  I'd much rather have plugged something into the wrong P5 than
> to have soldered something incorrectly.
>
> Or worse yet, mounting a chip in the wrong orientation.
>
> - Keith KD1E -
> - K2 5411 -
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jay Sissom
> Sent: Monday, October 30, 2006 10:46 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Re: K2 #5652 speaker
>
> I need to hang my head in shame.  After sending the email, I was looking
> in the schematic to see if there were any other places I could test for
> a signal.  That's when I realized there were 2 P5's.  Of course, I had
> plugged the speaker into the wrong one (on the control board).  Plugging
> it into the correct one makes all the difference!
>
> Thanks for your help.  I'll be more careful when I start on my KAT2.
>
> 73
> Jay
> KA9OKT
>
>
> On 10/30/06, Jay Sissom <jsissom at gmail.com> wrote:
> > My K2 is working!  I finished it and the internal battery pack this
> > weekend.  I started building it in July and 46 (non-consecutive) hours
>
> > later it works!
> >
> > I have a problem with the speaker though.  I hear the audio with
> > headphones plugged in, but don't hear anything through the speaker
> > with no headphones plugged in.
> >
> > Can someone give me the pinout of the headphone jack?  I wonder if the
>
> > switch inside the jack isn't working.  I've tested the speaker and
> > it's wiring and that seems to be OK.  The audio signal doesn't make it
>
> > to P5.
> >
> > Once I get this fixed, then I have the KAT2, SSB & DSP options to
> build.
> >
> > Thanks & 73
> > Jay
> >
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