I agree with David Live (David, I did oligonucleotide NMR at UAB in the
80's and read your papers!). When I got my first facility manager job in
1988 and something failed on my VXR-300, Phil Louthan advised me to swap
the motherboards between the host and acquisition computers. I was
frightened because he said I had to swap a pair of IC's in the process. But
I did it and the repair worked!
Some months later, the same failure occurred, and I reversed the swap. And
it worked!
I decided that every six months, I would remove every horizontal computer
boards from host and acquisition, blow the dust off with compressed gas,
and take a rubber eraser and some i-PrOH to the back-plane contacts. Never
had the problem again.
I miss talking to Phil. He made a huge difference in my professional
success.
Bill
On Thu, Feb 19, 2015 at 8:59 AM, David H Live <dlive_at_ccrc.uga.edu> wrote:
> We had a similar problem that would come and go on one of our consoles.
> What seems to have corrected it was wiggling the boards that attach to the
> back side of the digital backplane, as well as checking the seating of the
> ribbon cable connectors going to them. You have to take off the side of the
> console to access these. Apparently the backplane has boards coming in from
> both sides.
>
>
> David Live
>
> Senior Research Scientist
> Complex Carbohydrate Research Center
>
> University of Georgia
>
> 315 Riverbend Rd.
>
> Athens, GA 30602
>
> 706-542-6262
> ------------------------------
> *From:* Plant,Daniel <dan_at_mbi.ufl.edu>
> *Sent:* Wednesday, February 18, 2015 8:12 PM
> *To:* ammrl_at_ammrl.org
> *Cc:* Plant,Daniel
> *Subject:* AMMRL: Dead Agilent console...
>
>
> Hello Folks,
>
> A colleague has a problem with an Agilent 600 console.
>
> I'll copy his notes below. Any help will be appreciated.
>
> Dan
>
>
>
>
> The first hint of a possible problem came yesterday morning with the
> spectrometer being unresponsive accompanied by an “ACode Error.” An RF
> card-cage reset, via its Master Board, appeared to solve that problem, and
> the instrument worked fine through late this afternoon. However, when I
> tried to begin with the next sample, I noticed that a “Set Up Parameters”
> command (“su”) failed, and the system went into an “Inactive” mode. Master
> Board resets appeared to briefly return the system to “Idle,” but it would
> suddenly turn back to “Inactive” without issuing any other commands. I
> then notice that the scrolling LED’s displays on the RF boards were no
> longer showing their regular displays, and they eventually failed to give
> any “patterns” together. The card cage’s power supply was indicating that
> all its DC Voltages were present with green panel lights, but I wasn’t able
> to check test points with a multimeter. As I mentioned above, none of the
> other obvious power-cycles proved useful.
>
>
--
William C. Stevens, K9YP
Chief Communications Officer
Jackson County Emergency Management Agency
cell: 618-521-9892 residence 618-457-8385 fax 618-457-8485
84 Roosevelt Road
Carbondale, IL 62901
K9YP_at_arrl.net, billstevens55_at_gmail.com
Received on Thu Feb 19 2015 - 19:35:29 MST