Christie Digital Systems Ds+5k, Kc-8k, Dw3k-6k, Kc, Mirage S+2-4-8k, Dlv1400-dx, Matrix 4000 Users Manual

Section 3: Operation 
 
   User’s Manual    3-25. 
Use options in the Image 
Settings menu to alter your 
main 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). 
Contrast 
(
SHORT CUT: Press Contrast and adjust the slide bar.) 
“Contrast” increases or decreases the perceived...

Section 3: Operation 
3-26     User’s Manual 
    
Gamma is used to fine-tune the gamma table currently in use, ranging from 1 – 3 (2.2 
= default). 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. In high ambient...

Section 3: Operation 
 
   User’s Manual    3-27. 
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 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, and then define a new channel for 
future use. 
Video Options 
— SUBMENU 
This...

Section 3: Operation 
3-28     User’s Manual 
    
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...

Section 3: Operation 
 
   User’s Manual    3-29. 
Good RGB or input levels—
that is, the drives and black 
levels 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...

Section 3: Operation 
3-30     User’s Manual 
    
3.  Confirm that you are using an analog source not connected to INPUT 3 or INPUT 
4, as Input Levels are not applicable for digital sources or sources going through 
the decoder. A grayscale is recommended. 
4.  If the blacks and/or whites appear OK, input levels do not need adjustment. If 
black levels are too high (and/or whites are too low, which is rare), you likely 
have a noisy source that is producing skewed input levels. Continue with Step 5....

Section 3: Operation 
 
   User’s Manual    3-31. 
1.  Display a 16 level grayscale test pattern from the desired external source, and 
enter a checkmark in the Peak Detector checkbox.  
NOTE: The “Peak Detector” will initially render the grayscale as a uniform 
gray field before adjustment or extreme crushing. 
2.  Display one primary color.  
NOTE: Selecting Auto Color Enable ensures the correct color is displayed 
for each setting.  
3.  For the current color, adjust its corresponding “Black level”...

Section 3: Operation 
3-32     User’s Manual 
    
Advanced Image Settings — SUBMENU 
Use the Advanced Image Settings 
submenu to make the 
adjustments necessary for lesser-
used but more specialized 
applications on your projector. 
 
 
 
GAMMA TABLE: This control 
applies a default video, graphics 
or simple gamma table or “curve” to your 
images, controlling the intensity of midlevel 
colors and producing maximum contrast, 
brightness and color performance. As 
shown at right, the graphics curve is a...

Section 3: Operation 
 
   User’s Manual    3-33. 
color adjustment producing the best color accuracy for your application and 
installation. 
To configure a “User” color adjustment (gamut), use either the Color Adjustment by 
X/Y or Color Saturation submenu. 
NOTES: 1) “Color Temperature” defaults to 6500K until changed. All four “User” 
options default to SD Video unless the user has redefined them. 2) Factory-defined 
color primaries, which ensure consistent color gamut from projector-to-projector,...

Section 3: Operation 
3-34     User’s Manual 
    
FRAME DELAY — Set the number of lines delayed between the input signal and its 
appearance on screen, keeping in mind that projector processing always adds one 
frame of delay to the frame delay setting. For applications such as simulation, where 
the feeling of “real time” image response is a priority, a minimum setting is usually 
preferable. For projectors capable of 3D (stereographic) applications where alternating 
left-right frames must be...