Christie M-Series User Manual page 85

Diagnostics & Calibration - Submenu
• TEST PATTERN:
Choose the desired internal test pattern to display, or select OFF to turn off a test pattern. Alternatively, use
the T key for cycling through test patterns.
EST
• GREY LEVEL:
Set the level of grey for displaying in the full gray field test pattern.
• FREEZE IMAGE:
Enter a check mark to freeze (stop) an image on a single frame. Use this diagnostic tool to examine in detail a
still version of an incoming image that cannot be "frozen" at the source. For example, in moving images it is
sometimes difficult to observe artifacts such as external de-interlacing/resizing and signal noise. Remove the
checkmark to return to normal.
• COLOR ENABLE:
Select which color(s) you want to see. Use this while working with color temperature, input levels or other
special setup parameters. Colors can be enabled/disabled by entering the corresponding function code listed on
the back of the standard remote keypad.
• INPUT PEAK DETECTOR:
A fast method for defining individual input levels, and improving the accuracy of input levels set by the Auto
Input Level function. Enabling the Peak Detector activates a special operating mode for detecting only pixels
that are considered black or white—all other levels are displayed as a mid-level gray. When used with a 16-
step grayscale 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 will then display correct blacks and whites without crushing or washing
out. NOTE: If using Peak Detector with PIP, both images must have the same color space.
• INPUT LEVEL DETECTOR:
The Input Level Detector checkbox enables 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:
1. Enable Input Level Detector and display a continuous grayscale.
2. Set Input Level Value to near black (such as 200).
3. Adjust Offsets to minimize area of black stripe.
4. Set Input Level Value to near white (such as 800).
5. Adjust Gains to minimize area of white stripe.
• INPUT LEVEL VALUE:
Input Level Value defines the value to be used by the Input Level Detector in recognizing blacks and whites.
See Input Level Detector, above.
• 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.
• TEST PATTERN COLOR SWAP:
This function swaps the green and red color when drawing the Grid test pattern, and may be helpful when
adjusting convergence on the projector.
M-Series User Manual
020-100009-02 Rev. 1 (04-2009)
Section 3: Operation
3-45