Hello Christoph,
Unfortunately, I don't know of a commercial supplier for your defective
crystal oscillator. I hope that one of our colleagues in the AMMRL
can help you source that part.
Thank you for passing along these observations and diagnosis.
I was just thinking that we might start seeing some of these components
failing in the NEO consoles.
Most of our NEO consoles are six or seven years old, so I guess not
quite as old as yours.
Anyway, I will be interested to learn about potential suppliers for the
components in our NEO consoles. I may not need them today, but it is
just a matter of time.
Good luck,
Bob.
On 2026-02-18 2:29 a.m., Kreutz, Christoph Roman via groups.io wrote:
>
>
>
> Dear all,
>
> We have a failed AV4 REF1200 ECL01 board in a 2017 Avance Neo console.
> Our diagnostics indicate that the oven-controlled crystal oscillator
> (OCXO) is defective. When we supply a 10 MHz sine-wave reference from
> an external signal generator via the J1 10 MHz remote input, the board
> operates normally again.
>
> Does anyone know of a commercial supplier for the OCXO used on the
> REF1200 board, or an equivalent replacement?
>
> Thank you in advance for your help.
>
> Best regards,
> Christoph
>
> ---
> Assoc.-Prof. Christoph Kreutz
> L.02.043, CCB, Organic Chemistry
> University of Innsbruck
> Innrain 80/82
> 6020 Innsbruck
> Austria
> Phone: ++43 512 507 57725
> Mail: christoph.kreutz_at_uibk.ac.at
>
>
--
Dr. Bob Berno
Manager, NMR Facility
McMaster University, ABB-156
1280 Main St. West
Hamilton, ON L8S 4M1
T: 905-525-9140 x24158 or x24686
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Received on Wed Feb 18 2026 - 07:50:51 MST