🚀 go-pugleaf

Our MRC 600 opens the laser shutter spontaneously when, or shortly
after, the scan head is turned on.  Sometimes it will do this again
if the scanning is stopped (though the software).  This only happens
in the first 5 minutes after switch-on - after that everything is fine.
It's a trivial matter - *except* that if someone happened to do the
wrong thing with the sliders on the microscope they could get a
proportion of the laser beam coming out of the eyepieces, and this
worries our safety officer.

BioRad initially advised us that replacement of a particular ic with
a different one (details of which I have somewhere) would fix the
problem - it didn't.  Neither did a visit from a BioRad engineer who
changed some boards.

Do other BioRad users have this problem?  It doesn't affect everyday
operation, and I'm not really too worried about it, since we drum in
to all users not to put the sliders so that laser light could reach the
eye, but it would keep our Safety Officer happier if we could find a
fix.
                        Guy Cox
                        guy@emu.su.oz.au