Hi Bert,
Between Thursday and Friday the system failed to a much more serious level.
That is, the synth board is now only outputting a <2mV kHz oscillation that
looks more like noise than an RF signal -both channels are exactly the same.
Never-the-less I tried reseating the PS cables…to no effect. It is
now a permanent state!
For now the TTL state for LO switching is moot.
Thanks for responding.
Scott
Scott K. Smith, Director of NMR Spectroscopy
The University of Texas at Austin | Chemistry | 832-294-1928 | utexas.edu
> From: main_at_ammrl.groups.io <main_at_ammrl.groups.io> On Behalf Of Spin-Doc
> Sent: Friday, March 29, 2024 3:50 AM
> To: main_at_ammrl.groups.io
> Subject: Re: [AMMRL] MR400 LO switching
Scott,
Could you please try to unplug and plug back in the white Molex plugs on both
PS and backplane ends?
Is this actually occurring randomly or is it a permanent state now?
Cheers
Bert
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Spin-Doc
Magnetic resonance equipment, service, training & more
Dr. rer. nat. Bert Heise
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Mail: bert.heise_at_spin-doc.net<mailto:bert.heise_at_spin-doc.net>
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Received on Mon Apr 01 2024 - 07:08:01 MST