Christie Digital Systems Ds+4k, 8k, Dlv1400-dx, Mirage S+2k, 4k, 8k Users Manual

							Section 3: Operation 
 
  
 User’s Manual     3-19. 
• AUTO SOURCE: If checked, (default), the projector can automatically locate 
this channel when an incoming input signal matches. If not checked, the 
projector can locate the selected channel only when it is directly selected via 
C han nel on the keypad—and a change in input signal will not result in a channel 
change. 
• 
LOCKED: If checked, all of the image settings for this channel are disabled. If 
unchecked (default), all available image settings can be adjusted as desired. 
You cannot use Auto Setup with a locked channel. 
• 
PREVIOUS CHANNEL: Select this option to see or change Channel Edit settings 
for the previous channel in the Channel Setup list. 
• 
NEXT CHANNEL: Select this option to see or change Channel Edit settings for 
the next channel in the Channel Setup list. 
 
The most commonly used options for image adjustments are accessed through two 
menus: Size and Position (
1Menu)and Image Settings (2Menu), both of which 
appear in the Main menu. From either of these two menus, you can change settings 
affecting the image from the current channel by working with the appropriate 
slidebars, checkboxes and pull-down lists. 
Ex i t will return to the previous menu (or to 
the presentation, if from the Main menu) and accept any changes you may have 
entered. Settings are saved with the current channel. 
From your presentation, you can access any of the individual options in these menus 
by pressing 
Menu followed by the appropriate two-digit number representing their 
location in the menu system. For example, press 
23Menu to quickly access the 
“Gamma” option in the Image Settings menu. 
Note that for certain options, you may prefer to use a “direct key” from presentation 
level to go directly to a particular option without traveling through the menu system 
(note: available for certain display parameters only). For example, press 
Contra st to 
access the “contrast” slidebar immediately. Press 
Ex i t to return to your presentation. 
NOTES: 1) To hide these “direct” slidebars, disable the “Display Slidebars” 
checkbox in the Menu Preferences menu.  2) To hide the entire menu system from 
view, toggle the on-screen display by pressing 
OSD . 
Use Auto Setup (
Auto) 
For a good and efficient first step in perfecting the image, press
 
Auto. This initiates an 
automated process in which the projector quickly optimizes critical display parameters 
such as size, position, pixel tracking, etc., based on the type of incoming source data 
detected. An Auto Setup can save considerable setup time, and you can still modify 
the adjustments as desired using menu options described below. 
3.5 Adjusting the 
 Image 
  Before You Begin  
						

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In the Size and Position menu, 
you can increase or decrease 
the size of your image, change 
its proportion (aspect ratio), 
move the image to a specific 
area of the screen, and refine 
other related parameters. Use 
Size and Position controls to 
match the image precisely to 
the screen used at the site. 
Refer to Using Slidebars and 
Other Controls (earlier in this section) if you need help using any of the options and 
controls. Changes made in the Size and Position menu are applied immediately and 
are saved when you exit the menu (press 
Ex i t or
 Menu). 
Resize Presets 
Select a Resize Presets option 
to quickly display an image in 
its native resolution or to 
automatically resize an image 
to closely fill the projector’s 
native resolution of 1400 x 
1050, or to optimize the width 
or height of your display. Size, 
Position and Blanking 
parameters will automatically 
adjust accordingly, or if Blanking is set first, which defines an Active Input Area, 
Resize Preset scaling will occur in this region of interest only. Resizing options are 
explained in detail below. 
WHAT IS THE RESIZING DEFAULT? By default when displaying a new source, your 
image will utilize as much of the projector’s display area (1400 x 1050) as possible for 
the type of incoming source data, but with minimal or no changes to aspect ratio. See 
Select “Default” below. 
WHEN “CUSTOM” APPEARS: The “Custom” re-size descriptor automatically appears in 
the Size and Position menu when any of the values for Size, Vertical Stretch, H-
Position, V-Position or Blanking do not correspond to those for a preset. This option 
is not offered in the Resize Presets pull-down list. 
• Select
 “DEFAULT” for most sources (factory default). The image will be centered 
and displayed as large as possible depending on the type of source, as described 
below: 
TA 5:4 graphic image will enlarge to fill the screen height, and be centered 
between narrow black side bars. 
TA video image or 4:3 graphic image will enlarge to fill the screen.  
TAn anamorphic (16:9) image will fill the width and be centered between 
black bars on top and bottom.    Size and Position Menu 

 
 
 
  
						

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• Select
 “NO RESIZING” to display the image in its native resolution, which may or 
may not match the projector’s 1400 x 1050 resolution. For example, for a source 
with a native resolution of 800 x 600, “No Resizing” will use the central 800 x 600 
pixels and have a black border—the black border areas are unused areas. See 
below. 
 
• Select “FULL SIZE” to use 
all pixels (1400 x 1050) for 
displaying the image, 
regardless of source or 
original aspect ratio. 
Incoming source material 
having a different aspect 
ratio than the projector will 
be stretched for display.  
• Select 
“FULL WIDTH” to fill 
the projector’s display from 
left-to-right without 
changing the original aspect 
ratio of the image. 
Depending on the source, 
data at the top and bottom 
may be discarded (cropped), 
or the display may have 
black borders at the top and 
bottom (called “letterboxed”).  
• Select 
“FULL HEIGHT” 
to fill the display from 
top-to-bottom. 
Depending on the 
source, this may create 
borders.  
 
 
  
   
						

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• Select “ANAMORPHIC” to display an anamorphic image 
in its native 16:9 aspect ratio. The image will fill the 
screen from side-to-side and be centered between black 
bars at top and bottom.  
 
Size 
“Size” controls both the image width and height in tandem, maintaining the current 
aspect ratio (proportion) of the displayed signal data.  
Vertical Stretch 
“Vertical Stretch” adjusts the height of the image while keeping the width constant. 
Use “Vertical Stretch” to change the aspect ratio of the display.  
Pixel Track 
Steady flickering or several soft vertical stripes or bands across the entire image 
indicates poor pixel tracking. Proper pixel tracking helps ensure that the image quality 
is consistent across the screen, that aspect ratio is maintained, and that pixel phase can 
be optimized (described below). Tracking determines the frequency of the pixel 
sampling clock, indicated by the number of incoming pixels per line, so that all pixels 
generated by a particular source are sampled.  
NOTE: By default, the projector samples at the correct frequency for most sources. 
For best results, use a good test pattern such as a smooth gray consisting of a clear 
pattern of black and white pixels, or a similar “half on, half off” graphic image, such 
as the Windows shutdown screen. Adjust the slidebar until the vertical stripes broaden 
to the point where one large stripe fills the image. If the image still exhibits some 
shimmer or noise, adjust Pixel Phase (below). 
Pixel Phase 
NOTE: Adjust “Pixel Phase” after “Pixel Tracking”. 
Adjust pixel phase when the image (usually from an RGB source) still shows shimmer 
or “noise” after pixel tracking is optimized. Pixel phase adjusts the phase of the pixel 
sampling clock relative to the incoming signal. 
For best results, use a good test pattern such as a smooth gray consisting of a clear 
pattern of black and white pixels, or a similar “half on, half off” graphic image, such 
as the Windows shutdown screen. Adjust the slidebar until the image stabilizes and 
each pixel is clearly defined. You may notice that you can stabilize the image at more 
than one point—i.e., you may find that the image appearance at 11 is identical to the 
image appearance at 38, thus you can use either setting. 
If some shimmer from a video or HDTV source persists, use the “Filter” control to 
remove high-frequency noise from the signal. See Image Settings. 
 
  
						

							Section 3: Operation 
 
  
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H-Position 
This option moves the image right or left within the area of available pixels. 
NOTE: The value shown represents where the approximate center of the image lies in 
relation to the total number of pixels available horizontally. This varies widely 
according to the signal—watch the image while adjusting. 
V-Position 
This option moves the image up or down within the area of available pixels. 
NOTE: The value shown represents where the approximate center of the image lies in 
relation to the total number of pixels available vertically. This varies widely 
according to the signal—watch the image while adjusting. 
Swap PIP Images 
Toggle the current picture-in-picture relationship so that the primary image becomes 
secondary, and the secondary image becomes primary. Swapping is available only 
when PIP is enabled. Note: Not available in v1.0 software. Shown as “Reserved”. 
PIP Enable 
Toggle to display from two sources at once (picture-in-picture) or the primary source 
only. This checkbox turns the secondary source on and off in the display. Note: Not 
available in v1.0 software. Shown as “Reserved”. 
Advanced Size and Position 
— SUBMENU 
This submenu consists of the 
following options: 
ACTIVE INPUT WINDOW: This read-
only value indicates the current 
size (i.e., area) of your displayed 
data or “region of interest” as 
defined by the blanking controls. 
By default, the projector 
automatically determines what portion of its full resolution to use, and pixels in the 
surrounding borders are turned off. You can also specify a specific active input 
window size by adjusting one or more  “Blank” settings. For example, if you have 
blanked (cropped) 100 pixels from both the left and right edges of an incoming source 
of 1400 x 1050, the remaining active input window will be reduced to 1200 x 1050. 
When using SD or HD or a decoded video source at 
INPUT 3 or INPUT 4, the default 
blanking of  “0” defines an active input window of 720 x 483. 
 
  
						

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BLANKING (TOP, BOTTOM, LEFT, and 
RIGHT): 
Crop the image as desired so 
that unwanted edges are removed from 
the display (changed to black—see 
right). Blanking defines the size of the 
Active Input Window, or area of 
interest. Range of adjustment depends 
on the source resolution and other 
factors.  
 
 
 
PLUG & DISPLAY (EDID): By default, a Plug & Play (EDID) 
source outputs a signal according to the EDID information 
provided by the projector. To override this information and 
display in a different format (for example, if your Plug & 
Play [EDID] device does not support the projector’s 
resolution and/or frequency), select the desired Plug & Play 
(EDID) resolution from the list.  
Any daisy-chained projectors will also display according to 
the chosen Plug & Play (EDID) format. 
EDID = Extended Display Identification Data standard. 
 
Use options in the Image 
Settings menu to alter your 
image without affecting its 
size or position. Changes 
made to the Image Settings 
menu are applied 
immediately and are saved 
when you exit the menu 
(press 
Ex i t or
 Menu). Options 
not available for the projector 
model or source are disabled 
and appear dim (gray). 
 
 
 
 
 Image Settings Menu 
 
  
						

							Section 3: Operation 
 
  
 User’s Manual     3-25. 
Contrast 
(
SHORT CUT: Press Contra st and adjust the slidebar.) 
“Contrast” increases or decreases the perceived difference between light and dark 
areas of your image (0-100). For best results, keep close to 50. If contrast is set too 
high, the light parts of the image lose detail and clarity. If set too low, the light areas 
will not be as bright as they could be and the overall image will be dim. For best 
results, start with a low value and increase so that whites remain bright but are not 
distorted or tinted and that light areas do not become white (i.e., are “crushed”).  
NOTE:  If the environment lighting changes, an adjustment of Gamma is 
recommended (see below). 
Brightness 
(
SHORT CUT: Press Bright and adjust the slidebar.) 
“Brightness” increases or decreases the amount of black in the image (0-100). For best 
results, keep close to 50. Start with a high value and decrease so that dark areas do not 
become black (i.e., are “crushed”). Conversely, high brightness changes black to dark 
gray, causing washed-out images.  
Gamma 
(
SHORT CUT: Press Gamma and adjust the slidebar.) 
“Gamma” is a global setting that determines how gray shades are displayed between 
minimum input (black) and maximum input (white) for all signals. A good gamma 
setting helps to optimize blacks and whites while ensuring smooth transitions for the 
“in-between” values utilized in other grays. Unlike “Brightness” and “Contrast” 
controls, the overall tone of your images can be lightened or darkened without 
changing the extremes and all images will be more vibrant while still showing good 
detail in dark areas when using the “Gamma” control. 
The normal gamma setting of 2.2 is correct for virtually all signals and conditions. If 
excess ambient light washes out the image and it becomes difficult or impossible to 
see details in dark areas, lower the gamma setting to compensate. This will improve 
contrast while maintaining good details for blacks. Conversely, if the image is washed 
out and unnatural, with excessive detail in black areas, increase the setting. Again, 
good gamma improves contrast while maintaining good details for blacks and whites. 
Filter 
The proper filter setting is automatically set for virtually all 
signals, and rarely needs to be changed.  It applies a low pass 
filter for noise reduction in the incoming input signal, particularly 
for HDTV or SDTV. Applied in the analog domain before 
sampling, this filtering removes high frequencies and thus 
reduces pixel phase noise (note this also reduces signal bandwidth). Override only if 
standard pixel tracking and phase adjustments do not adequately clear up a “noisy” 
video signal, or if a graphics signal appears overly “soft”. Both instances indicate that 
“Filter” may be set to the wrong option. 
 
 
   
						

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Detail 
“Detail” adjusts the sharpness of a video image so that edges remain clearly defined. It 
can be particularly useful if a significant “Noise Reduction” adjustment has caused the 
image to appear too soft. Adjust until the display is as sharp as desired, keeping in 
mind that because “Detail” adds some high frequencies back into the image, it can 
also re-introduce a certain degree of noise. 
Noise Reduction 
“Noise Reduction” is similar to the “Filter” control, but operates in the post-sampling 
digital domain with a more subtle effect. Higher settings are most useful for clearing 
up noisy RGB images such as those from a PC. Adjust as desired, keeping in mind 
that reducing noise (which reduces high frequencies) may also soften the image. 
Color Space 
“Color Space” determines how the color components of an analog 
input signal are decoded for accurate color in the display. 
Selecting a color space option is useful only for analog signals 
connected to 
INPUT 1, INPUT 2, INPUT 5 or INPUT 6. Although 
color space for these analog signals is automatically determined 
by the projector, in some circumstances you may wish to override this and manually 
set a specific color space. 
NOTE: For digital signals or for signals connected to 
INPUT 3 or INPUT 4, the color 
space function is entirely automatic and the pull-down list disabled. 
The current color space appears in the Image Settings menu. Press 
 to select a 
different option: 
• Select 
RGB unless you are using component video at INPUT 1, 2, 5 or 6. 
• Select 
YPbPr (Video) with a standard definition televised signal 
(SDTV) 
• Select 
YPbPr (HDTV) with a high definition televised signal (HDTV). 
NOTE: When certain RGB signals are first connected, the projector may not initially 
recognize them as RGB and will incorrectly decode their color information as YPbPr 
(video). These signals, which appear magenta, can include: 
• RGB signals in NTSC, PAL, SECAM frequency ranges 
• Scan-doubled sync-on-green 
• Scan-quadrupled sync-on-green 
For these signals, change the Color Space to RGB.  
 
  
						

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Video Options — SUBMENU 
This submenu is used with video 
sources only (
INPUTS 3 or 4). 
ENABLE DECODER AGC:  Automatic 
Gain Control (AGC) affects decoded 
video images only. Enter a checkmark 
(default) in most instances—this 
activates the decoder’s AGC circuit to 
ensure properly bright images. Delete 
the checkmark if a decoded video image exhibits strange color artifacts such as stripes 
in highly saturated colors, indicating an incompatibility between this source and the 
AGC. 
VIDEO STANDARD: For all but the more unusual video standards 
available in the world, the projector automatically detects the 
incoming horizontal and vertical frequencies and sets the projector’s 
processing of this signal to the corresponding standard. The current 
video standard name appears in the Video Options submenu, and 
includes an “A” if it has been auto-detected. Press 
 to view or 
select a different video standard from those available to the 
projector—any that are disabled have frequency characteristics that 
differ from those of the incoming signal. Selecting a specific 
standard forces the projector to process the signal according to this standard. 
Table 3.3. Regions and Video Standards: Summary 
StandardWhere Used (SUBJECT-TO-CHANGE) 
NTSC N. America and Japan 
NTSC 4.43 A tape-only standard for partially-translated hybrid signals 
PAL Most of Europe, China, Australia, some of S. America, some of Africa 
PAL-M Brazil 
PAL-NC Argentina, Chile, other Latin American countries 
PAL 60  
SECAM France, Eastern Europe, most of Africa 
NOTE: Generally, use “Auto” for all instances EXCEPT: 1) a poor quality input 
signal or 2) a black-and-white video signal. In order to detect and display such 
signals, select the relevant standard from the list. 
INPUT VIDEO BLACK — This control 
compensates for incoming elevated black 
levels present in certain video signals, and 
ensures that blacks in the display are 
neither crushed (i.e., where dark grays appear black) nor excessively elevated (i.e., 
where blacks appear dark gray). By default, the projector automatically determines the 
best setting according to the type of incoming video signal: 
• 
0 IRE – Used for DVD output with “enhanced black”, SECAM, most 
PAL standards, and Japanese NTSC. 
• 
7.5 IRE – Used for most NTSC video signals. 
For some types of video, you can override the setting. The control is disabled for other 
types of video (and all graphics sources). Generally, if black appears crushed when 
brightness = 50, choose “0 IRE”. If black appears excessively elevated, use “7.5 IRE”. 
 
 
 
 
 
  
						

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COLOR — This slidebar adjusts the color saturation level, i.e. the amount of color in a 
video image. Lower settings produce less saturated colors — for example a setting of 
“0” produces a black and white image. If the color level is too high, colors will be 
overpowering and unrealistic. 
TINT — This slidebar adjusts the red/green color hue for true color reproduction of 
video signals connected to 
INPUT 3 or 4. For best results, adjust tint while displaying 
an external color bars test pattern—otherwise, it is recommended that tint remain at its 
default setting. 
DECODER LUMA DELAY – This control affects any incoming composite or S-video 
signal, delaying the luma signal (intensity) in relation to the chroma (color). In the 
image, increasing the luma delay will move luma (seen as a shadow where colors 
overlap) to the right slightly, with colors remaining in place. Decreasing this delay 
will move the shadow slightly to the left. If necessary for your current source, adjust 
so that no shadows occur with adjacent colors. 
Input Levels 
— SUBMENU 
NOTES: 1) Because the projector automatically optimizes input levels for all but the 
most unusual of sources, it is recommended that only experienced users use the Input 
Levels submenu. 2) Before beginning, check that overall contrast and brightness 
settings are near 50 and that color temperature is properly set up on an internal 
grayscale test pattern. 3) There must be at least 2 consecutive white pixels present in 
the image for proper “Auto Input Level” function. Leave this control off after use.  
Good RGB or input levels—
that is, the drives and 
blacklevels for each of the 
three colors, red, green and 
blue—ensure that images 
from analog sources other 
than decoded 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 2 consecutive white pixels in the image. 
Without these pixels, input levels may produce skewed colors, particularly in non-
video images. 
However, for a very unusual source exhibiting one or more overly high blacklevels 
(typically caused by a noisy source causing blacklevel spikes), an experienced user 
may prefer to use the Input Levels menu (shown above). These adjustments, which 
together serve as a calibration process compensating for differences in sources and 
cabling, enable an experienced user to perfect the source image input levels and 
eliminate the “overshoot” and “undershoot”. Note that Input Levels are of limited use 
with digital signals, but do offer some ability to tweak poorly mastered source 
materials.