Dear AMMRLers,
I will resort to this always forthcoming list to see whether it could shed some light on the following problem or, better yet, whether you have experienced similar situation and could share with me. I will post a summary of the comments afterwards.
I have a Bruker Avance II MicroBay 300-MHz whose systematic disruption of the communication between the console and host was traced back to overheating the CCU. I decided then to replace the fans of the AQS and, sure enough, three out of the eight fans were malfunctioning.
My problem occurred in the subsequent re-positioning the AQS in the console's rack. After re-cabling the AQS the communication with the CCU was perfectly reestablished and is stable. However, I cannot obtain a lock signal. 1H and 13C are okay, I can even wobble the 2H channel. But the lock display does not provide the lock signal in the sweep mode.
Has any of you experienced similar problem? Do you think soldering the connections of the fans on top of the AQS could somehow affect any of the boards, in particular, the 2H board? The system was working perfectly (with the exception of the communication) before their replacement. I am in touch daily with Bruker but, at this point, any comments or suggestions are more than welcome. The system runs Linux/TS 2.1.6.
In anticipation, thank you very much for any help you can provide.
All the best,
Carlos
__________________________
Carlos Pacheco, Ph.D.
NMR Facility, Director
University of Connecticut / Department of Chemistry
55 North Eagleville Road, Unit 3060 - Room 002 Storrs, CT 06269-3060 USA
Phone:(860) 486-4069; Fax: (860) 486-2981
E-mail: carlos.pacheco_at_uconn.edu; Twitter: _at_UCONN_NMR Twitter (personal): _at_cpacheco223
Received on Wed Feb 27 2013 - 16:27:51 MST