Discovery QDR Series Technical Manual
3-49
3. Place the Aperture Alignment Pin through the hole in the Aperture Plate. It
should drop straight through and into the alignment hole in the Filter Drum
Assembly base plate and be perpendicular to the Aperture Plate. If it is not per-
form steps 4 through 7. Otherwise, proceed to step 8.
4. Hit the <Esc> key to return to the Discovery Main screen.
5. From the Discovery Main Menu screen, select Utilities|Service Utili-
ties|SQDRIVER.
6. At the CARM$$$$> prompt, type move_aper_rel +100 (to move the Aper-
ture Plate right) or move_aper_rel –100 (to the move Aperture Plate left) until
the Alignment Pin is both vertical and perpendicular to the Aperture Plate. (Place
the block on the base plate next to the pin and compare the pin to the vertical sur-
face of the block to see if the pin is perpendicular).
7. Type exit <Enter> to return to the Discovery Main Screen.
8. Start the X-Ray Survey Utility by selecting Utilities|Service Utilities|X-Ray
Survey (see
“X-Ray Survey” on page 9-1 for information on the utility).
9. Do not change the Aperture setting, the Hi gain setting (set to 2), the Lo gain
setting (set to 1) or the X-ray mode setting (set to 3).
10. For Display, click Graph/
11. Click X-ray (F2) to turn on x-rays.
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