Christie Projector J Series 2.0, 2.4, And 3.0kW User Manual
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Section 2: Installation and Setup J Series 2.0, 2.4, and 3.0kW User Manual2-17020-100707-01 Rev. 1 (10-2011) 5. Align the center lines of the grid. Turn the 2 rear stacking mount wheels to move the top projector as necessary to achieve well-aligned center lines. Use a screwdriver in the holes around the rim of each adjusting wheel for better leverage and control. How to move the image. Turn independently; each stacking mount acts as a pivot point for the opposite edge of the display (Figure 2-22). For example: • Turn the right mount to tilt the left portion of the image up or down • Turn the left mount to tilt the right portion of the image up or down • Turn the mounts together to raise or lower the top image like an offset adjustment, or turn the front stacker If the center lines form an “X”. This indicates that the projectors (and images) are slightly tilted in relation to one another. Turn 1 mount to raise 1 side, and/or turn the other mount to lower the other side. See Figure 2-22. If the center lines are parallel, but misaligned: • If center lines are out by the same amount from top and bottom, use lens offsets (on top projector) to bring the center lines into alignment. • If center lines are parallel, but others are not, turn the front stacking mount wheel to bring the center lines into alignment. 6.Align the edges of the grid with center lines aligned: a. Adjust zoom (top projector) to align the edges of its image with the other image. b. Adjust focus. When aligned, all lines from the combined red/green grids will be yellow. Figure 2-22 Adjustment Directions (Tilt) Figure 2-23 Misaligned Figure 2-24 Adjust Front Wheel
2-18J Series 2.0, 2.4, and 3.0kW User Manual020-100707-01 Rev. 1 (10-2011) Section 2: Installation and Setup 7. Secure all stacking wheels and leg nuts: Critical Safety Procedure. • Turn all 3 stacking wheels until they are firmly secure against the rest of the stacking mount. See Figure 2-25. • Secure both 2 rear leg nuts against the bottom of the projector. 8. Repeat Steps 1 to 7 if stacking a third projector. 2.3 Types of Installations Front Screen / Floor Mount Installations Front Screen / Inverted Mount (ceiling) Installation Rear Screen / Floor Mount Installation Rear Screen / Inverted Mount (ceiling) Installation Rear Screen / Floor Mount with Mirror AdvantagesConsiderations • Easy to set up. • Can be moved or changed quickly. • Easy to access.• Shares floor space with audience. AdvantagesConsiderations • Does not take up audience space. • Projector is unobtrusive. • Projector cannot be accidentally moved.• Installation is more permanent. • It is more difficult to access the projector. AdvantagesConsiderations • Projector is completely hidden. • Projector is easily accessed. • Usually good ambient light rejection.• Requires separate room or enclosure. • Installation cost is usually higher. AdvantagesConsiderations • Projector is completely hidden. • Usually good ambient light rejection.• Requires separate room. • Installation cost is usually higher. • More difficult to access projector. AdvantagesConsiderations • Projector is completely hidden • Usually good ambient light rejection. • Requires less space behind screen than other rear screen installations.• Requires separate room or enclosure. • Installation cost is usually higher. • More involved to perform setup. Figure 2-25 Secure All Hardware
Section 2: Installation and Setup J Series 2.0, 2.4, and 3.0kW User Manual2-19020-100707-01 Rev. 1 (10-2011) Front Screen Installations In front screen installations, the projector and audience are positioned in front of the screen, which can be flat or curved. Flat screens offer a gain of about 1.0 with a viewing angle just less than 180°. This type of screen reflects incident light equally in all directions so the audience can see the display from various angles. Curved screens have a gain greater than 1.0 with a viewing angle much less than 180°. This type of screen does not reflect incident light equally in all directions; instead it is concentrated in a viewing cone. The audience sitting within the viewing cone area will see a brighter image than those sitting just outside the area. FIGURE 2-26 F IGURE 2-27
2-20J Series 2.0, 2.4, and 3.0kW User Manual020-100707-01 Rev. 1 (10-2011) Section 2: Installation and Setup Rear Screen Installations There are two basic types of rear screens: diffused and optical. A diffused screen has a surface which spreads the light striking it. Purely diffused screens have a gain of less than 1.0. The advantage of the diffused screen is its wide viewing angle, similar to that of a flat screen for front screen projection. This type of screen is suitable when a wide viewing angle is required but there is low ambient light. Optical screens take light from the projector and redirect it to increase the light intensity at the front of the screen. This reduces it in other areas. A viewing cone, similar to that of a curved front screen installation is created. This type of screen is better suited for brightly lit rooms where the audience is situated within the viewing cone. Screen Size Select a screen size appropriate for your lens and application. If the projector will be used to display text information, the image size must allow the audience to recognize all text clearly. The eye sees a letter clearly if eye-to-text distance is less than 150 times the height of the letter. Small text located too far from the eye will be illegible at a distance no matter how sharply and clearly it is displayed. To fill a screen with an image, the aspect ratio of the screen should be equal to the aspect ratio of the image (expressed as the ratio of its width to its height). Standard video from a VCR has a 4:3 or 1.33:1 aspect ratio. For example, to display a VCR output with a 4:3 aspect ratio onto a 10-foot (3m) high screen, the width of the screen must be at least 13.3 feet (4m). Ambient Lighting The high brightness of this projector is well suited for locations where ambient lighting might be considered less than ideal. A typical room with ceiling lights and windows rarely requires special attention. Contrast ratio in your images will be reduced if stray light directly strikes the screen. For example, when a shaft of light from a window or floodlight falls on the image. Images may appear washed out and less vibrant. Avoid or eliminate stray light sources directed at the screen. Ventilation The projector vents and louvers provide ventilation, both for intake and exhaust. Never block or cover these openings. Do not install the projector near a radiator or heat register, or within an enclosure. To ensure adequate airflow around the projector, refer to to ensure its installation meets the proper spacing requirements.allow. NOTE: Do not obstruct the air exchange to the projector. Other Considerations Other considerations and tips to improve your installation: • Keep the ambient temperature constant and below 40°C (104F). Keep the projector away from heating and/ or air conditioning vents. Changes in temperature may cause drifts in the projector circuitry, which may affect performance. • Keep the projector away from devices that radiate electromagnetic energy, such as motors and transformers, slide projectors, speakers, power amplifiers, elevators, etc. • Use a screen size appropriate for the venue but not larger than required. Installing a large screen in a small room is similar to watching television at a close range; too large a screen can overpower a room and interfere with the overall effect. As a rule, be no closer than 1.5 times the width of the screen.
Section 2: Installation and Setup J Series 2.0, 2.4, and 3.0kW User Manual2-21020-100707-01 Rev. 1 (10-2011) 2.3.1 Projector Position and Mounting Throw Distance Throw distance is the distance measured from your projector front feet to the screen. This calculation determines if there is enough room to install your projector with a desired screen size and if the image will be of the right size for your screen. To estimate the throw distance, take the horizontal width of the screen and multiply it by the lens throw ratio. The result determines approximately the distance the projector should be positioned from the screen to project a focused image large enough to fill the screen. For example, using a 0.73:1 lens, throw distance would roughly be 0.73 x screen width. IMPORTANT! Use the lens and screen size to calculate the precise throw distance using the tables provided in the Dealer Section of the Christie Website, PN 020-100221-XX. Due to lens manufacturing tolerances for lens focal length, actual throw distance can vary ±5% between lenses with the same nominal throw ratio. FIGURE 2-28 Vertical and horizontal position The correct vertical and horizontal position of the projector in relation to the screen depends on the lens type and the screen size. Ideally, the projector should be positioned perpendicular to the screen. This way, the image will appear rectangular instead of keystoned (trapezoidal). The vertical position of the image can be offset (that is moved above or below the optical axis) by adjusting the motorized lens mount. The amount of vertical offset available depends on the type of lens installed in the projector and can be limited if horizontal offset has been applied. Vertical offset can be expressed as the percent of half the image height or the number of pixels of shift from lens center. Refer to Figure 2-29 for illustrated examples of vertical offset. Table 2.1, Table 2.2 and Table 2.3 specify the vertical offset of each type of lens.
2-22J Series 2.0, 2.4, and 3.0kW User Manual020-100707-01 Rev. 1 (10-2011) Section 2: Installation and Setup Table 2.1 WUXGA Vertical Offset Ranges Table 2.2 HD 1080p Vertical Offset Ranges Table 2.3 SXGA+ Vertical Offset Ranges NOTES: 1) Offsets are subject to ±7% centering tolerance. 2) % Offset = # of pixels of offset/half vertical panel resolution x 100. The horizontal position of the image can also be offset; that is moved to the left or right of optical center, by adjusting the motorized lens mount. The amount of horizontal offset available depends on the lens installed and if the image has already been vertically offset. Horizontal offset can be expressed as the percent of half the image width or the number of pixels of shift to one side of lens center. Table 2.4, Table 2.5 and Table 2.6 each show the horizontal offset of a lens type. See Figure 2-30 . WUXGA Lens Description Lens Part Number Minimum Offset Above or Below Lens Center Lens ILS 0.73:1SX+/0.67:1HD 118-100110-XX ±22% ±132 pixels Lens ILS 1.25-1.6SX+/1.16-1.49HD 118-100111-XX ±82% ±492 pixels ALL OTHER LENSES ±112% ±672 pixels HD 1080p Lens Description Lens Part Number Minimum Offset Above or Below Lens Center Lens ILS 0.73:1SX+/0.67:1HD 118-100110-XX ±35% ±189 pixels Lens ILS 1.25-1.6SX+/1.16-1.49HD 118-100111-XX ±102% ±551 pixels ALL OTHER LENSES ±119% ±643 pixels SXGA+ Lens Description Lens Part Number Minimum Offset Above or Below Lens Center Lens ILS 0.73:1SX+/0.67:1HD 118-100110-XX ±23% ±121 pixels Lens ILS 1.25-1.6SX+/1.16-1.49HD 118-100111-XX ±73% ±383 pixels ALL OTHER LENSES ±100% ±525 pixels
Section 2: Installation and Setup J Series 2.0, 2.4, and 3.0kW User Manual2-23020-100707-01 Rev. 1 (10-2011) Table 2.4 WUXGA Horizontal Offset Ranges Table 2.5 HD 1080p Horizontal Offset Ranges Table 2.6 SXGA+ Horizontal Offset Ranges NOTES: 1) Offsets are subject to ±7% centering tolerance. 2)% Offset = # of pixels of offset/half horizontal panel resolution x 100. WUXGA Lens Description Lens Part Number Minimum Offset Above or Below Lens Center Lens ILS 0.73SX+/0.67HD 118-100110-XX ±6% ±58 pixels Lens ILS 1.25-1.6SX+/1.16-1.49HD 118-100111-XX ±38% ±365 pixels ALL OTHER LENSES ±54% ±518 pixels HD 1080p Lens Description Lens Part Number Minimum Offset Above or Below Lens Center Lens ILS 0.73:1SX+/0.67:1HD 118-100110-XX ±12% ±115 pixels Lens ILS 1.25-1.6SX+/1.16-1.49HD 118-100111-XX ±40% ±384 pixels ALL OTHER LENSES ±42% ±403 pixels SXGA+ Lens Description Lens Part Number Minimum Offset Above or Below Lens Center Lens ILS 0.73:1SX+/0.67:1HD 118-100110-XX ±13% ±91 pixels Lens ILS 1.25-1.6SX+/1.16-1.49HD 118-100111-XX ±45% ±315 pixels ALL OTHER LENSES ±50% ±350 pixels
2-24J Series 2.0, 2.4, and 3.0kW User Manual020-100707-01 Rev. 1 (10-2011) Section 2: Installation and Setup FIGURE 2-29
Section 2: Installation and Setup J Series 2.0, 2.4, and 3.0kW User Manual2-25020-100707-01 Rev. 1 (10-2011) FIGURE 2-30 2.3.2 Mounting There are several methods for mounting the projector. Depending on your chosen installation, one method may be more suitable than another. In typical front and rear screen installations the projector can be mounted to a secure and level surface, such as a table or cart. Carts are useful when the projector has to be moved during a presentation or from site to site. It is recommended you lock the wheels on a cart, when it is in position, to prevent someone from accidentally moving it during a presentation. Ceiling Mount The projector can be inverted and suspended from the ceiling using a specially designed ceiling mount 104- 104001XX. This mounting is recommended for fixed installations and for those that want the projector out of plain view or have limited amount of space for the projector and audience. For more information, contact your dealer. Use only the Christie approved ceiling mount kit designed for your projector. Refer to the installation instructions and safety guidelines provided in the kit.
2-26J Series 2.0, 2.4, and 3.0kW User Manual020-100707-01 Rev. 1 (10-2011) Section 2: Installation and Setup 2.3.3 Adjusting Projector Height/Tilt Adjusting Height You can modify the height of the projector to remedy a slightly uneven mounting surface by adjusting the four feet threaded into the bottom chassis. Turn each foot clock-wise or counter-clockwise until the projector is level on all sides. Refer to Figure 2-9. Tilting the Projector In the landscape orientation, the projector can be rotated to any angle (roll/pitch) and tilted to any vertical angle (i.e., you can tilt the face of the projector up or down as much as desired for your installation). For maximum lamp life, side-to-side tilt must not exceed 15 degrees. Tilt angles including portrait mode are allowed as shown in Figure 2-31. FIGURE 2-31 2.3.4 Basic Optical Alignment Only perform image alignment on-ce the projector is fully assembled and powered up in its final location. Basic image alignment ensures the image reflected from the DMDs is parallel to and well-centered with the lens and screen. This initial optical alignment is the foundation for optimizing images on the screen and must be completed before final boresight adjustments. Before beginning ensure the projector is properly positioned relative to the screen. Basic Optical Alignment Procedure 1.Display a test pattern: Appropriate for analyzing image focus and geometry, such as the “framing” test pattern showing the cross-hair centered across the image. Press the T EST key on the remote keypad or use the built-in keypad and press the soft key that displays Test on the LCD display. 2.Course focus: Do a quick preliminary focus and (if available) zoom adjustment with the primary lens. Do not worry about consistency across the image at this point, just center focus. It is good practice to have zoom adjustment color and focus adjustment color in the center of its range. 3.Center the image in the lens: Holding a piece of paper at the lens surface, adjust offsets as necessary until the image is centered within the lens perimeter. A full white field works best for this.