[K3] new build (s/n 7080) Synthesizer calibration throws an E 00005/ERR VCO

[Jeff Schmidt]

I skimmed the archives and then re-seated the TMP cables to no avail.

Assuming the issue lies w/ the TCXO (I've got the KTCXO3-1), I pulled an
extra two 'clicks' on the tie band to tighten it down (there was a bit
of a gap between the oscillator and the socket, but the error remains.

I then carefully disconnected the KREF3 board and shot this pic:
http://kc9wsj.us/KREF3_TCXO.jpg

Is that tiny gap still an issue? Do I need to pull the crystal and trim
its leads? (I hope I can find a small enough replacement tie band in my
collection)


73
Jeff KC9WSJ
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[Fred Townsend-2]

Jeff based on my experience with this machined pin type socket I have never
seen a problem because they grip in multiple locations on the side of the
pin. Your trouble is likely elsewhere. If trouble is suspected I would
remove the tywrap and use a small screw driver to lever the module out from
each end and then inspect the pins. Assuming the pins are OK I would
reinsert. That will renew the contacts.
73
Fred, AE6QL

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Jeff Schmidt
Sent: Saturday, January 05, 2013 12:32 PM
To: [hidden email]
Subject: [Elecraft] [K3] new build (s/n 7080) Synthesizer calibration throws
an E 00005/ERR VCO

I skimmed the archives and then re-seated the TMP cables to no avail.

Assuming the issue lies w/ the TCXO (I've got the KTCXO3-1), I pulled an
extra two 'clicks' on the tie band to tighten it down (there was a bit of a
gap between the oscillator and the socket, but the error remains.

I then carefully disconnected the KREF3 board and shot this pic:
http://kc9wsj.us/KREF3_TCXO.jpg

Is that tiny gap still an issue? Do I need to pull the crystal and trim its
leads? (I hope I can find a small enough replacement tie band in my
collection)


73
Jeff KC9WSJ
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[Jeff Schmidt]

Thanks for the comments, Fred.
I just cut the tie-band, pulled the crystal, all three TMP cables, and the
KREF3 board out and re-seated all (Xtal leads looked OK to me).  

Still getting E 00005 / ERR VCO then E 00255 / ERR VC4
:^(


Jeff KC9WSJ

On Sat, Jan 05, 2013 at 10:53:42PM -0800, Fred Townsend wrote:

> Jeff based on my experience with this machined pin type socket I have never
> seen a problem because they grip in multiple locations on the side of the
> pin. Your trouble is likely elsewhere. If trouble is suspected I would
> remove the tywrap and use a small screw driver to lever the module out from
> each end and then inspect the pins. Assuming the pins are OK I would
> reinsert. That will renew the contacts.
> 73
> Fred, AE6QL
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Jeff Schmidt
> Sent: Saturday, January 05, 2013 12:32 PM
> To: [hidden email]
> Subject: [Elecraft] [K3] new build (s/n 7080) Synthesizer calibration throws
> an E 00005/ERR VCO
>
> I skimmed the archives and then re-seated the TMP cables to no avail.
>
> Assuming the issue lies w/ the TCXO (I've got the KTCXO3-1), I pulled an
> extra two 'clicks' on the tie band to tighten it down (there was a bit of a
> gap between the oscillator and the socket, but the error remains.
>
> I then carefully disconnected the KREF3 board and shot this pic:
> http://kc9wsj.us/KREF3_TCXO.jpg
>
> Is that tiny gap still an issue? Do I need to pull the crystal and trim its
> leads? (I hope I can find a small enough replacement tie band in my
> collection)
>
>
> 73
> Jeff KC9WSJ
> ______________________________________________________________
> 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
>

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