A word of warning to all of you who use the IMI.  Even though the
EPROMs you burned are verified by the IMI, that does not mean they will
work in the PCB.  It apparently has nothing to do with the speed of the 
EPROMs.  I have had 27512s and 27256s fail in my PCB, yet they verify fine
in the IMI.  The DIO on the other hand, failed on a low voltage verify.

	Dave Shepperd believes the problem lies in the fact that the EPROMs
have not been completely erased.  He recommends that the windows be cleaned
and the EPROMs be erased for an hour.  I will ask Chris Downend to see if
we can get another timing box that will go beyond 30 minutes for the second
eraser in the DIO/PRINTER room.  I will also try to get some cleaner 
available.

	Now that I have your attention, I would like to ask a favor of any
user of the IMI/DIO.  When you are waiting for your EPROMs could you PLEASE
put any erased EPROMs from uder the UV lamps away in the correct drawers.
Stacking them neatly off to the side so that you can erase your EPROMs will
not help because they will erased again and again....  Now if you still
have nothing to do, how about erasing a few EPROMs that are laying around
on the table.  If you can't do that please take them into the assembly area
to be erased.

	One more word of warning.  The eraser in the assembly area will NOT
erase EPROMs if they are placed in the center of the tray.  The UV lights
must be directly above the EPROMs.

						Ed Logg