KD0SV: RE: [Elecraft] DSP problem

Fri Dec 5 12:13:01 2003

Gary,

Will send it off today express so you should have it Monday. I recently took
pictures of the boards in sections with a 6 megapixel camera and examined
the solder work on the PC. Amazing how much better you can see stuff. So, I
am pretty sure the soldering is FB !

Let me know if you think of anything else to try before I ship.

73,

Rich

----- Original Message ----- 
From: "Gary Surrency" <[email protected]>
To: "'Lyle Johnson'" <[email protected]>; "'Rich McCabe'"
<[email protected]>
Cc: "CSinfo" <[email protected]>
Sent: Friday, December 05, 2003 10:49 AM
Subject: KD0SV: RE: [Elecraft] DSP problem

> Rich probably needs to send his DSP boards one to me for testing and
repair
> if it has an oscillating voltage regulator.  I've not seen any of these
> lately since the early ones we first shipped, so this is maybe just a
random
> failure.
>
> Examine *ALL* the boards well including the K2 control board with a bright
> light and a magnifier to see if you can see anything that might be
> correctable by resoldering. If not, then let me know, and send it to:
>
> Elecraft Technical Support
> Gary Surrency
> 1326 N. Laveen Dr.
> Chandler, AZ 85226-1348
>
> --
> 73, Gary AB7MY
> =========
> [email protected]
> Elecraft Technical Support
>
>
>
>
> -----Original Message-----
> From: Lyle Johnson [mailto:[email protected]]
> Sent: Thursday, December 04, 2003 8:59 PM
> To: Rich McCabe; [email protected]
> Subject: RE: [Elecraft] DSP problem
>
>
> Rich,
>
> Some early DSP units had a problem in the DSPx power system which would
> cause a lot of loud staticy kind of noise.  Usually, they would be OK for
a
> very few seconds, then the noise would build up and get worse. In extreme
> cases it would kill the DSP completely (no receive audio at all).
>
> I haven't had an instance of this problem since the fix was made back in
> June or July.
>
> I've copied Gary in case he knows of this problem recurring, or otherwise
> knows about the symptom you are seeing.
>
> 73,
>
> Lyle KK7P
>
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]]On Behalf Of Rich McCabe
> > Sent: Thursday, December 04, 2003 7:49 PM
> > To: [email protected]
> > Subject: [Elecraft] DSP problem
> >
> >
> > Last night I fired up my new DSP unit and was amazed how it pulled
> > signals out of a noisy band.
> >
> > Tonight I figured out it was making the noisy band. I found this by
> > clicking the bypass in the menu. To check this, I removed the module
> > and jumpered out the plug. The rig became quiet again.
> >
> > I am verifying part installation right now but was wondering if I
> > could have messed something up in the config.
> >
> > Any thoughts?
> >
> > Thanks and 73,
> >
> > Rich
> > kd0zv
> >
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