Optical Adjustments; Contrast Adjustment - Christie LX700 Service Manual

Optical Adjustments

Contrast adjustment

1 Select the internal test pattern signal "All black" from the projector's menu "Menu -> Setting -> Test pattern".
2 Loosen a screw A on the polarized glass holder which you intend to adjust.
3 Turn the lever B of polarized glass to obtain the darkest brightness and proper black color uniformity on the
screen.
4 Turn the lever C of optical filter to obtain the darkest brightness and proper black color uniformity on the screen.
5 Tighten the screw A to fix the polarized glass holder.
Repeat steps 2 to 5 for remaining R and B contrast adjustment.
This adjustment should be taken in order of G-panel, R-panel and B-panel.
This adjustment should be taken in the dark room to adjust precisely.
LX700 Service Manual
Lever B
(Polarized glass)
Lever C
(Optical filer)
Rev. 1 (11/08)
-41-
A
020-000120-01