Christie M Series User Manual page 22

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step grey scale pattern in which the two black and white bands are known to be at

opposite edges of the image, you can watch these isolated areas while adjusting individual

black levels and input drives until both bands are just visible. Images from this source

display correct blacks and whites without crushing or washing out. If using Peak Detector

with PIP, both images must have the same color space.

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Input Level Detector—Enable specific thresholds for blacks and whites. Input levels that

fall below a specified level value (see below) are displayed as black, and all others are

displayed as white. To use:

a. Enable Input Level Detector and display a continuous grey scale.

b. Set Level Detector Threshold to near black (such as 200).

Adjust Offsets to minimize area of black stripe.

d. Set Level Detector Threshold to near white (such as 800).

e. Adjust Gains to minimize area of white stripe.

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Level Detector Threshold—Define the value to be used by the Input Level Detector in

recognizing blacks and whites.

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Aspect Ratio Overlay—Check this box to display an overlay pattern over the image. The

overlay shows the boxes corresponding to the size and shape of different aspect ratios.

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Test Pattern Color Swap—Swap the green and red color when drawing the Grid test

pattern. This may be helpful when adjusting convergence on the projector.

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Calibrate LiteLOC—The LiteLOC calibration process must be run to calibrate the LiteLOC

sensor on all model types. Constant Intensity mode cannot operate correctly if the

calibration has not been performed. The calibration must be done in Dual Lamp mode,

after the lamps have warmed up for at least five minutes. The shutter closes for the

duration of the calibration, and automatically open again when the calibration is complete.

M Series User Guide

020-101948-02 Rev. 1 (08-2018)

Operating the projector

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