430a peptide synthesizer

From: Paul Semchuk (paul.semchuk@ualberta.ca)
Date: Tue Aug 29 2000 - 16:21:46 EDT


We have a 430a peptide synthesizer that appears to have a mind of it's
own.The cartrige ejector keeps on ejecting when a synthesis is
started.It goes back and forth and does not stop when a synthesis is
finished compiling,even after aborting or going into manual control and
clearing all functions.The disc has been re-written and the board for
the ejector and the neeedle has been replaced(ie the board situated by
the ejector).When the ejector is controlled in manual control there is
no problem.Has anyone seen this problem before.Thanks in advance for
your help.

-- 
sincerly,
Paul Semchuk
University of Alberta
Edmonton,Alberta,Canada



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