Hi all,
This is probably for the "oldy but goodies" in this group...but I'll accept
possible solutions from anyone. We have a 1994 Bruker AC300 console and I
have a question. It recently started giving me proton intermittently and
I reset all the boards in our DSPECT unit (requested by tech support) and
now I don't get any 1H signal to the software. I do still have my 2H lock
signal. It seems like the DSPECT would be the primary culprit, but after
some initial steps that may (??) have ruled out the DSPECT, tech support has
requested I look at few other things. If you have the manual titled "Wiring
diagram AC-SC", on page 2 the column titled "PERIPH. CASCODE" pins C and K
are giving +19V and +24V respectively as they should, but on page 3 pins L
and M are both giving 0.58V DC (we don't know what they should have) and none
give a high frequency signal to the preamp box that is on the floor by
the NMR feet. Should one of the pins (the "N" pin is labeled Chan I/II) have
a frequency signal associated with it? Does something go bad in the box with
the 1H preamplifier?
Any help would be appreciated, thanks.
Darren Schwede
Lab Coordinator & Instrument Specialist
Phone: 651-399-3513
Text: 6513993513_at_mms.cricketwireless.net
Email: darren.schwede_at_sdsmt.edu
Office: CBEC 1120
http://www.sdsmt.edu
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Received on Fri Jan 31 2025 - 16:57:58 MST