Christie Projector DHD850-GS User Manual

   Installation
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If you do not press   again, the warning me ssage disappears after three seconds and the 
projector remains on.
Adjusting the projector position
When you select a position for the projector, consider the size and shape of your screen, the 
location of your power outlets, and the distan ce between the projector and the rest of your 
equipment. Follow these general guidelines:
• Position the projector on a flat surface at a right angle...

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Calculating the lens offset
Adjust the offset to align the imag e on the screen with full image size.
• The vertical image offset (shift) ranges fo r the projector are +/-50% (WUXGA) and +/-60% 
(HD). 
• The horizontal image offset (shift) range for the projector is +/-30% (HD/WUXGA).
• The method for calculating lens offset complies with industry standards. For example for  vertical lens offset:
• At 0% offset (or on axis), the...

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• Vertical image offset: +50%
• Vertical image offset: -50%
+50%
Lens center
Lens center
-50% 

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HD Projectors:
The following show vertical and horizontal image offset for HD projectors:
• Vertical image offset: +60%
• Vertical image offset: -60%
Lens center
+60%
Lens center
-60% 

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• Horizontal image offset: +/-30%
Removing and installing the lens
When handling the projector after lens installation,  make sure the front lens cap is placed on the 
lens to protect the lens surface from potential damage. When carrying or moving the projector, do 
not handle by the lens. This may damage the lens,  the chassis, or other mechanical parts within the 
projector.
1. Center the lens. Ensure the lens is at or near  its...

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5. To remove the lens, press the  Lens Release button   and rotate the lens counterclockwise by 
a quarter   to release the lock.
6. Remove the lens through the front of the projector.
7. To install the new lens, fully insert the lens  assembly straight into the lens mount   without 
turning.
8. To lock the lens in place, rotate the lens clockwise  .A
B
A
B
A
B
A
B 

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Installing the ceiling mount
Mount the projector with a Christie-approved mount (such as the Christie One Mount Plus, P/N: 
140-117100-XX), using the four mounting poin ts on the underside of the projector.
1. Refer to the installation instructions and safety guidelines provided in the mount kit (such as  the Christie One Mount Plus, P/N: 140-117100-XX).
Installing the projector in the rigging frame
Install the projector in a...

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Operation
The projector has multilingual on-screen display  (OSD) menus so you can make image adjustments 
and change a variety of settings.
Most of the projector controls are accessed from wi thin the projector menu system. Several groups of 
related functions are selectable from the Main Menu as shown below.
• To display the Main Menu, on the IR remote keypad  or on the built-in keypad on the rear of the 
projector, press  MENU.
• To navigate...

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Size and Position menu
The Size and Position menu determines the si ze and position of the image on the screen.
Menu itemDescriptionOptions
Size Presets Displays an image with the detected size, or 
resizes the image by maximizing either the 
height, width, both, or resizes to the maximum 
size possible while keeping the original aspect 
ratio. • Auto—Displays with the detected size.
• Native—Displays in its native resolution.
•...

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Pixel Track Ensures that the image quality is consistent  across the screen, the aspect ratio is 
maintained, and the pixel phase can be 
optimized. Steady flicke ring or several soft 
vertical stripes or bands  across the entire image 
indicates poor pixel tracking. (Analog RGB 
signals only) —
Pixel Phase Adjusts the pixel phase when the image shows  shimmer or noise after pixel tracking is 
optimized. Pixel phase ca n adjust the phase...