User manual

Section 3: Operation
3-66 Mirage S+/HD/WU, Matrix S+/HD/WU, Christie HD/DS+/DW, DLV User Manual
020-100001-07 Rev. 1 (11-2009)
Ensure that overall light output remains well matched from one screen center to
the next. Where necessary, increase or decrease Lamp Power slightly to
recover center matches.
Step 2: Adjust Color (level of red/green/blue) in Eight Zones
NOTES: 1) At this point, ignore the brightness of individual zones. 2) Always ignore
menu colors.
2a) On each screen, compare the color temperatures in the eight target zones (four
edges and four corners) to that of the color temperature of the center. Compare
using a white field only, and take note of any areas that do not match the
center. Also decide if any screen exhibits a more obvious color shift than other
screens—begin with this screen in Step
2b.
2b) Return to the Brightness Uniformity menu. Beginning with the screen that exhibits
the most obvious color shift(s), for each edge that exhibits a noticeably different
color temperature from the center, select the corresponding Uniformity adjustment
menu—Left, Right, Top or Bottom. For example, if any part of the left side is too
blue, too red or too green, go to the Left Uniformity menu and adjust the colors
(i.e., change their light output) until all portions of the left side closely match the
center color temperature. Adjust an edge first (focusing on its center), and then
adjust its corners. See Figure 3.17.
Figure 3.17. Match Zones to Center Color Temperature
Repeat the color adjustment of sides and corners for each edge of the screen that does
not yet match the center (note that each corner is adjustable in either of its two
adjacent “side” menus). When done, all areas of a given screen should match. Repeat
Steps
2a & 2b for all remaining screens.
Step 3: Adjust Light Output in Eight Zones
3a) For each screen, compare the light output of each edge and corner to that of the
center. If any of the areas differ, use the White Uniformity menu to match edges
and corners to the center as described below (see Figure 3.18). Begin with the
screen exhibiting the most obvious variations in light output.
 Adjust edge White Uniformity first—note that each edge adjustment also
affects the rest of the screen slightly. Keep all edges just slightly lower
than the center light output rather than matching light output precisely.
Otherwise, it may not be possible to brighten the corners (typically the
dimmest areas of the screen) enough. I.e., the best uniformity is a
compromise between the brightest and darkest areas of the screen.