Christie Projector Mirage WU-L User Manual

							Section 3: Operation
Mirage WU-L User Manual3-23020-100774-01 Rev. 2 (4-2012)
video have maximum contrast without crushing black or white. By default (and in an “Auto Setup”), the 
projector automatically determines the best input levels by monitoring image content and adjusting the 
controls appropriately; further adjustment is typically not required to obtain proper blacks or whites. 
NOTE: This automatic adjustment requires at least 6-12 consecutive white pixels in the image. Without these 
pixels, input levels may produce skewed colors, particularly in non-video images. 
For a source exhibiting overly high black levels (typically caused by a noisy source causing black level spikes) 
use the Input Levels menu (3.3.1 Inputs, on page 3-10). These adjustments, serve as a calibration process 
compensating for differences in sources and cabling, to perfect the source image input levels and eliminate 
“overshoot” and “undershoot”. 
NOTES: 1) Input Levels are of limited use with digital signals, but do offer some ability to tweak poorly-
mastered source materials. 2) Input levels apply for the current source only, but for any color temperature 
used. 3) Assuming that color temperature has been set up based on the internal test patterns, you can then set 
up input levels for a given source so that it matches the color temperature of the internal test patterns.
• Auto Input Level
Use only if you are an experienced user and you have an unusual source that you feel needs further Color 
Temperature and/or Input Level adjustment. This compensates for incoming out-of-range drives (white) and 
black levels (black) that would cause “crushing” of light and dark colors in the image. After entering a check 
mark, wait for the 6 slide bar values to stabilize, then delete the check mark, and exit. The Auto Input Level is 
automatically turned OFF upon exit from the Input Levels menu.
• Black Levels and Drives
NOTICE: Do not use Input Levels to adjust color temperature. This will distort contrast and brightness 
functions, as well as color temperature.
To check your image levels and adjust these controls:
1. Confirm that you are using an input on a Dual Link DVI card. Input Levels are not applicable for sources 
going through the decoder.
2. Display a representative image for source you are setting up.
3. Make sure that overall “Contrast” and “Brightness” settings are both set to near 50.
4. If black levels are too high (or whites are too low, which is rare), you likely have a noisy source that is 
producing skewed input levels.
5. To adjust levels automatically, check to enable Auto Input Levels in the Input Levels menu. Wait for all 
six Blacklevel and Input Drive values to stabilize. Uncheck the Auto Input Levels option.
NOTE: Do not use Auto Input Levels for dark images.
6. Exit the Input Levels menu. Exiting the Input Levels menu automatically disables Auto Input Levels and 
Auto Color Enable.
• Auto Color Enable
When a check mark is present, select a specific black level or drive will automatically enable the 
corresponding color in the display. Delete the check mark to see all colors, or to enable a different specific 
color through the Color Enable control. 
						

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Section 3: Operation
•Clamp Location 
Clamp Location brightens the image produced from certain high-resolution high-frequency graphic sources. 
The projector automatically selects the best clamp location for most sources. Use the normal Back Porch 
location if the image is either sufficiently bright or overly bright. Select Sync Tip if the image appears 
unusually dim, if there are horizontal streaks across the image, or if there is significant color drift. This moves 
the clamping pulse from the normal back porch location (which is likely too short) to the tip of the horizontal 
sync pulse. Tr i  L e v e l is typically needed for an HDTV source.
• Input Peak Detector 
Input Peak Detector is a tool to assist with defining individual input levels, enabling you to accurately set the 
input levels for any particular source with the appropriate image. 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 smooth grayscale pattern in which black and white 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 black and white edges are 
just visible and distinguished from neighboring pixels. 
Images from this source will then display correct blacks and whites without crushing.
To adjust levels manually:
• Do not enable Auto Input Levels.
• To judge by eye and adjust levels manually, change one or more of the six levels as necessary to obtain 
proper blacks and whites.
1. Display a 16-level grayscale test pattern from the desired external source, and enter a check mark in the 
Input Peak Detector check box. 
NOTE: The Input Peak Detector will initially render the grayscale as a uniform gray field before 
adjustment or extreme crushing.
2. Display one primary color. 
NOTE: Select Auto Color Enable to ensure that the correct color is displayed for each setting. 
3. For the current color, adjust its corresponding Black level slidebar just until a single band of black appears 
at one edge of the screen. This band represents the first band of the grayscale pattern. It should be 100% 
black.
4. With the same color still active, adjust its corresponding Input Drive slidebar just until a single band of 
color appears at the opposite edge of the screen. This band represents the last band of the grayscale pattern, 
which should be 100% white (or the current color, if a certain color is enabled). 
5. Check the black band and adjust the black level slidebar, if necessary. 
NOTE: Adjusting the black levels affects the gain. Only adjust when necessary. 
						

							Section 3: Operation
Mirage WU-L User Manual3-25020-100774-01 Rev. 2 (4-2012)
6. Repeat steps 3-5 with the 2 remaining primary colors. When each primary color shows one optimized 
black band and white (or colored) band, the Input levels for this source are correctly set. Upon exiting the 
Input Levels menu, the Peak Detector check box will clear.
Select which color or colors you want to see in the display, useful while working with color temperature white 
levels or input levels. 
NOTES: 1) Input levels apply for the current source only, but for any color temperature used. 2) If color 
temperature is set up based on the internal test patterns, you can set up input levels for a given source so that it 
matches the color temperature of the internal test patterns.
Advanced Image Settings Menu
Use the Advanced Image Settings submenu to make the adjustments 
necessary for lesser-used but more specialized applications on your 
projector.
Gamma Settings
The system offers 2 types of gamma correction. 
Gamma correction can be applied to a specific source 
to correct for luma encoding. This is a channel setting 
and reapplied every time the same signal is detected. 
This is the Gamma control. On the other hand the 
system also provides a global Gamma Correction 
control. The global control offers an offset applied to 
all channels. This offset is used to compensate for 
changes in ambient conditions, such as ambient light in 
the room and projected material.
 Figure 3-11  Adjusting Input Levels Using the Peak Detector 
						

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Section 3: Operation
•Gamma Correction
Applies a global offset to all gamma settings for each channel. It affects the shape of the curve by performing 
a linear transform toward a gamma curve of 1.0 while the control is increasing and likewise a linear 
transform toward a gamma of 3.0 as the control is decreasing. The control should only be adjusted to 
compensate for ambient conditions. To correct a particular source only, use the Gamma control. 
•Gamma
Select the base gamma table for a given source. Select from one 
of the standard tables, a custom gamma function, or select an 
arbitrary gamma table that has been downloaded to the projector. 
NOTE: A separate PC utility is needed to do this. 
The 2.22 curve is a power curve typically used to encode graphics 
and video sources, see Figure 3-12. The standard curve (auto 
setup default) is a modified 2.22 curve with a small linear section 
in the black that enhances the detail in darker areas of the projected content. Typically standard or 2.22 is 
used for all sources. Alternatively, if neither default is ideal, apply a simple gamma curve by defining a 
custom power function and slope. Select Gamma Function to enable the function and slope controls. For 
more complex non-standard gamma curves, a user-defined curve created externally and downloaded to the 
projector can be used (requires separate PC-based Arbitrary Gamma software application to create the table, 
and the Web UI to download it). 
NOTE: If any of these special user curves have been installed, their names will appear in the Gamma Table 
drop-down list.
• Gamma Function
Defines the base gamma power curve used when the base Gamma table value is set to “Gamma Function”. 
This value, combined with the Gamma Slope setting determines the base Gamma table to be used as the 
custom base table. The curve is generally a power curve with a small linear segment at the bottom defined by 
the slope.
•Gamma Slope
This control defines a slope to be used for the base custom Gamma table for a small section at the bottom of 
the curve. This slope can be used to bring in or out the low level blacks in the image. This slope, combined 
with the gamma function, defines the custom Gamma table.
Detail Settings
Adjusts the sharpness of the image. Setting detail 
above the halfway point can introduce ‘noise’ in the 
image. Lower settings can improve a noisy signal.
•Detail
Adjust the sharpness of the image. Setting detail 
above the halfway-point can introduce noise in the 
image. Lower settings can improve a noisy signal. 
This command does not take effect unless the 
minimum change required in the Detail Threshold 
control is reached.
• Texture Enhancement
Applies texture detail enhancement based on adaptive horizontal, vertical, and diagonal large edge and small 
edge enhancement processes.
 Figure 3-12  Gamma Curve 
						

							Section 3: Operation
Mirage WU-L User Manual3-27020-100774-01 Rev. 2 (4-2012)
• Detail Threshold
Selects a filter sensitivity to noise. A higher value may improve noisy sources especially for higher settings 
of detail.
• Detail Overshoot
Minimizes ringing on the enhanced edges detail and texture effects.
• Split Screen
Allows a snap shot of the main image to be presented on the right side of the screen to allow evaluation of 
advanced image processing features. All resizing controls are honoured on both images; however, image 
processing controls only happen on the left side image. Changing inputs, channels or test patterns will 
disable this control. 
Noise Reduction Settings
• Noise Reduction 
Selects a filter sensitivity to noise. A higher 
value may improve noisy sources, but it will 
soften the image.
• Block Artifact Reduction
Locates and reduces block edges produced by 
Discrete Cosine Transform (DCT) based 
compression processing.
• Mosquito Noise Reduction
Reduces mosquito artifacts around sharp edges in DCT based compression by dynamically adapting to 
image content.
• Split Screen
Allows a snap shot of the main image to be presented on the right side of the screen to allow evaluation of 
advanced image processing features. All resizing controls are honoured on both images; however, image 
processing controls only happen on the left side image. Changing inputs, channels or test patterns will 
disable this control. 
• Full Screen Eye-Motion Filter
Check this control to apply the eye-motion filter to the entire screen rather than applying just to the edge 
blending regions.
• Eye-Motion filter
Adjust this filter to reduce the saccadic eye-motion sometimes noticeable in edge blending regions. Too 
much filtering may result in loss of detail. For best results, adjust this setting while positioned at the nominal 
screen-viewing distance.
Color Settings
NOTICE: 
Use this Color Settings menu to set up color 
manually only if you override ArrayLOC. See 3.5 How 
Color Settings Interact in a Mirage WU-L Array, on 
page 3-61. 
						

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Section 3: Operation
ArrayLOC is enabled automatically, and Select Color Adjustment is set to Max Drives. Use the color function 
under ArrayLOC to manage projector color. ArrayLOC color and color temperature settings override settings 
in this menu.
NOTE: To check ArrayLOC operational status, check Main Menu > Status. ArrayLOC can only be disabled 
from the passcode-protected Service menu. Please contact Customer Support for more information.
• Select Color Adjustment
Select the output color adjustment most suited to this input signal. 
•Max Drives: All color adjustments are turned OFF allowing the projector to run at maximum brightness. 
•SD Video and HD Video: Sets the output color to a specific standard value. Adjusts the colors; red, 
green, blue, and white.
•User#: Select 1 of 4 user defined sets of color adjustments; defined in the Configuration menu.
• Color Temperature 
Allows you to specify a color temperature between 3200 and 9300. Expressed in degrees Kelvin (3200K, 
5400K, etc.). Lower numbers appear reddish white and higher numbers appear bluish. 
Standard settings are:
• 9300K is close to the white of many computer monitors
• 6500K is the standard for color video, in both standard and high definition forms
• 5400K is a standard for graphics and black and white video
• 3200K is useful if the projected image is to be filmed or shot as part of a studio set illuminated with 
incandescent lights
For all color temperatures the color primaries; red, green, and blue are unchanged and reflect the native 
colors of the projector.
3.4.4 Channel Setup
Allows you to select a predefined channel (see Channel Setup Menu, on page 3-12). 
						

							Section 3: Operation
Mirage WU-L User Manual3-29020-100774-01 Rev. 2 (4-2012)
3.4.5 Configuration
Use the Configuration menu to define general operating 
parameters and communications with other projectors and 
equipment, and to access other advanced processing and image 
adjustments affecting overall performance. The Configuration 
menu provides access to diagnostics, calibration tools and the 
Service submenu (password-protected).
Language
Choose the available language to use in the projector menus. 
The change will take effect immediately.
Output Options 
Screen Image Orientation
Select the on screen image orientation from Front, Rear, Front 
Inverted, and Rear Inverted.
Frame Locking 
Select how the projector controls the output frame timing based 
on the input signal. When set to Frame Lock, output image 
frames are locked to the input if possible. When locked, the 
output is always locked to the primary input. When set to Free Run, sets the output to the Free Run 
Frequency value. The projector will not display 3D content when set to Free Run.
NOTE: Frame locking on projectors in a ArrayLOC 
network can be controlled from one projector. See 
Synchronize Frame Delay on page 3-54. When 
Synchronize Frame Delay is used, the master 
projector sets the frame delay for the synched 
projectors in the array. 
Set Frame Delay 
This control delays the output signal timing relative 
to the input signal timing by a fraction of a frame, 
and up to several frames. The minimum latency can 
vary based on the amount of scaling applied to the 
image. When using keystone or warping, an 
additional latency is required, depending on the 
amount of warp. The control is only available when 
the input signal is frame locked. 
In Free Run mode, or in cases where the signal cannot be frame locked, the minimum latency defined by the 
scaling and keystone/warp is applied to the signal.
NOTE: Frame locking on projectors in a ArrayLOC network can be controlled from one projector. See 
Synchronize Frame Delay on page 3-54. When Synchronize Frame Delay is used, the master projector sets the 
frame delay for the synched projectors in the array. 
						

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Section 3: Operation
Actual Frame Delay
Indicates the dynamically calculated, effective minimum frame delay for the projector. The calculated delay is 
affected by image shift, scaling, warp/keystone applied, and format. For example, the minimum latency can 
vary based on the amount of scaling applied to the image. When using keystone or warping, an additional 
latency is required, depending on the amount of warp. 
Free Run Frequency 
This control sets the output video vertical frequency when Frame Locking is set to Free Run. The projector 
will not display 3D content when set to Free Run.
HDMI Output Loop Source
The HDMI output options are:
• Choose Direct Loop to directly pass-through the HDMI input signals from the same Twin HDMI input card. 
The Input1 signal is looped to Output1, and the Input2 signal is looped to Output2.
• Choose Main/Secondary Loop to loop the main & secondary video to the outputs, regardless of which card 
these signals originate from. The main video signal is looped to Output1, and the secondary video signal is 
looped to Output2.
Power Management
Auto Power Up 
If there is an AC power interruption while Auto Power Up 
is enabled, the projector will resume operation in the same 
state as it left OFF. If the light engine is on and an image is 
showing when AC power is lost, the projector will 
automatically power back up with the light engine on, and 
an image will show when AC is restored. 
Auto Shutdown Enable 
When you select Auto Shutdown mode, and the projector 
is inactive for the time specified in Turn Off Image After 
(min), the light engine dims and the shutter closes. If the 
projector continues to be inactive for the time specified in 
Enter Standby After (min), the projector enters standby 
mode. Any activity during the time intervals cancels auto 
shutdown and returns the projector to normal operation. 
Turn Off Image After (min) 
Sets the time of inactivity after which auto shutdown dims the light engine and closes the shutter. 
Enter Standby After (min) 
Sets the additional time of inactivity after which auto shutdown initiates standby mode.
EM Stealth Mode
Check this option to operate the projector with the status LED display on the EM module turned off. The status 
LED is turned OFF during operation only. In standby mode, the status LED displays codes normally.
NOTE: Option card LEDs on the EM remain visible. 
						

							Section 3: Operation
Mirage WU-L User Manual3-31020-100774-01 Rev. 2 (4-2012)
Fan Assist
Normal cooling uses temperature sensors to regulate fan speed. Fan Assist enables full speed fan operation on 
the Light Module (LM) when operating in high ambient temperatures or for long periods. This may help to 
reduce thermal problems and may prevent an emergency shutdown for thermal safety reasons. Fan assist 
increases noise levels due to the simultaneous full speed operation of the fans.
Date & Time
The current year-month-day, hour-minute-second. Changes made reset the projector real-time clock.
Menu Preferences
Adjust the appearance, content and/or location 
of on-screen menus and messages.
Large Menu Font 
Select to enlarge menus and text. Adjust 
Menu Location to accommodate the change.
Menu Location 
Select a location for the display of on-screen 
menus. 
To create a custom menu location:
1. Choose a preset location. 
2. Adjust Horizontal Shift and Ve r t i c a l  
Shift. 
NOTE: Avoid locations too close to a corner 
or edge to prevent cropping of larger menus.
Horizontal Shift And Vertical Shift 
Adjusts the location of on-screen menus.
Display Automatic Message Boxes
Check to enable messages directly triggered by user actions, for example gamma or lens control messages.
Display User Message Boxes
Check to enable messages that are not directly triggered by user actions, for example signal information 
messages.
Display Error Messages 
Choose how you want to be notified of errors detected in either the incoming signal or projector. Select Screen 
or All (default) to see brief on-screen messages. This is recommended during setup or testing of the projector. 
Or, select Serial Ports to receive messages using RS-232 or RS-422 serial communication only. To hide error 
message displays, such as during shows and presentations, select Off or Serial Ports.
Splash Screen Setup 
Choose when to display a special splash screen image, such as your company logo, graphic, or message.
•Always Off – A splash screen never appears
•Start-up Only – The splash screen logo appears at projector start-up only.
•Start-up And No Signal – A splash screen appears at start-up and at any time when there is no signal. 
						

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Section 3: Operation
To add your own splash screen in addition to the default “CHRISTIE logo” splash screen, use the Web UI to 
download the desired bitmap (.bmp) file to the projector. This will overwrite any other user splash screen that 
has been downloaded. 
NOTE: Only one user splash screen can be saved in the projector.
OSD Transparency 
Check this box if you want the On Screen Display (OSD) menu backgrounds to be transparent.
Menu Type 
Menu type is preset to Advanced which provides access to all projector functions. 
Splash Screen 
Choose which splash screen is to be used; the default or user downloaded splash screen.
Cascading Menus
Enable or disable cascading menus. When disabled, a single menu level will be displayed on the OSD at a time.
Communications
Defines and controls how single or multiple projectors are linked with each other and with a controlling device. 
For detailed information see Appendix C: Serial Communication.
Serial Options
NOTE: 
The Synchronize Keys, Test Pattern, Color 
Enable option lets you use the ArrayLOC network to 
forward IR remote keys from the master projector to all 
the synched projectors in the ArrayLOC group. See 
Synchronize Keys, Test Pattern, Color Enable on 
page 3-54.