Problem evg-imprint SNF 2006-08-04 09:20:12: shutter problem

changyol at snf.stanford.edu changyol at snf.stanford.edu
Fri Aug 11 15:23:47 PDT 2006


ground was floating on 24v dc due to not open shutter.
found one of photo switching ic( MR25) was bad at 42 PN3
board. replaced with spare one.  tested shutter and checked uniformity that came out good. ready to use.




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