Hi all,
Our Varian VnmrS 700 has developed a problem where all the LEDs of all
the digital controllers are off except for PSOK. I can't communicate
with anything except for the ProTune unit. All the controllers show a
link LED to the network switch. I swapped the network switch but this
made no difference. The power supply appears to be ok as I checked the
voltages from the power supply and they are all 0.1-0.2 V above their
nominal values except for the 24 V output which is at 24.0 V.
If anyone has any idea or suggestion to try, I would greatly appreciate it.
Thanks,
Eugenio
--
Eugenio Alvarado, Ph.D.
NMR Facility Director
Chemistry Department, room 3500. University of Michigan
930 N. University Ave., Ann Arbor, MI 48109-1055.
Voice: (734)-764-9924
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Received on Tue Oct 21 2025 - 12:27:43 MST