Problem sem4160 SNF 2010-05-25 02:10:52: no image showing on screen

jwc at jwc at
Tue May 25 14:39:03 PDT 2010

upper aperture strip had been changes by unknown previous user(s)
check upper and lower aperture adjustment and centered upper aperture strip for brightest low mag image on apt. strip no 4.
then performed the gun and movable aperture alignment with user on the tool.
NOW nice brightness and SE2 imaging.

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