Projector Christie Roadster S+20k User Manual

							INSTALLATION & SETUP 
  Roadster/Mirage S+ User’s Manual 2-15 
Installation type, screen type, and lighting all affect where the projector is positioned. 
In addition, both throw distance (the distance between the projector and screen) and 
vertical position (the height of the projector in relation to the screen) must be 
determined for every new installation. Both depend on the screen size and lens type 
you are using. Make sure that the room can accommodate the required position of the 
projector for the chosen screen size. 
 
Figure 2.19. Estimating Throw Distance 
(SEE APPENDIX D)  
For any installation, an accurate throw distance (TD) must be determined in order for 
the image to be of the right size for your screen–the farther the projector is from the 
screen, the larger the image. Throw distance is the distance between the projector’s 
front feet axes and the screen (Figure 2.19), and is roughly equal to the horizontal 
width of the screen multiplied by the throw ratio of the installed lens. Once you know 
your screen size and lens, you can estimate throw distance needed. For example: 
• Screen Width = 10 feet 
• Lens Type is 0.7:1 
• Throw Distance (TD) = 10 feet x 0.7 = 7 feet 
NOTES: 1) If your projector is slightly tilted in relation to the screen, typical for 
large venues or flown installations, throw distance still represents the smallest 
measurement between the screen and front feet. 2) For proper placement in an 
installation, always refer to the throw distance formula and/or chart for your lens as 
listed in Appendix D. Keep in mind that due to lens manufacturing tolerances for 
lens focal length, actual throw distance can vary ±5% between lenses described as 
having the same throw ratio 
THE VERTICAL POSITION of the projector in relation to the screen also depends on the 
size of the screen and the lens type. Correct vertical position helps ensure that the 
image will be rectangular in shape rather than keystoned (having non-parallel sides) 
and that image focus and brightness both remain optimized.  
2.3   Projector 
Position and 
Mounting 
 Throw Distance '
  Vertical & Horizontal '
 
Position  
						

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Roadster/Mirage S+ User’s Manual 
If necessary, vertical position of the image can be offset—that is, moved up or down 
in relation to lens center—by using the motorized offset function. Starting with no 
offset, the image from this projector can be moved up or down by a maximum 
distance of 525 pixels for SXGA+ resolution, resulting in the entire image displayed 
above or below lens center. See Table 2.1 and Figure 2.20.  
NOTE: Not applicable for the fixed lens. 
THE HORIZONTAL POSITION of the image can be offset—that is, shifted left or right 
of lens center—by using the motorized offset function. Starting with no offset, the 
image from this projector can be moved left or right by a maximum distance of 350 
pixels for SXGA+ resolution, resulting in 75% of the image displayed to one side of 
lens center. See Table 2.1 and Figure 2.21. 
Table 2.1. Maximum Amount of Image Offset from Lens Center 
Lens Type Offset Movement 
(All motorized lenses) 
						

							INSTALLATION & SETUP 
  Roadster/Mirage S+ User’s Manual 2-17 
NOTES: 1) If the image becomes keystoned or 
exhibits uneven brightness, the projector may 
simply be too high or low in relation to the 
screen. 2) Recommended offset ranges can be 
exceeded, however this may affect image 
quality. 3) Simultaneous horizontal and 
vertical offset limits the adjustment range of 
each. 4) Offset can vary by ±7% and may be 
affected by the degree of zoom currently in 
use. 
 
 
 
 
 
 
The projector can be rotated and mounted at any vertical angle—i.e., you can tilt the 
face of the projector up or down as much as desired for your installation. Side-to-side 
tilt, however, must not exceed 15° (Figure 2.22). Keeping the projector fairly level in 
this manner ensures that the lamp axis is level, and is required for safe and reliable 
lamp operation. Always vent exhaust air away from the lens. 
 
Figure 2.22. Vertical and Horizontal Tilt Ranges 
CEILING MOUNT: Use only the Christie-approved ceiling mount kit designed for your 
projector. Refer to the installation instructions and safety guidelines provided in the 
kit. For more information, contact your dealer. 
 
Figure 2.21. Maximum Horizontal 
Offsets 
 Tilting the Projector ' 
						

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Roadster/Mirage S+ User’s Manual 
In rear screen applications (Figure 2.23) where space 
behind the projector is limited, a mirror may be used 
to fold the optical path. The position of the projector 
and mirror must be accurately set. Consult your 
dealer or Christie for details. 
 
 
Sources connect to the Input Panel located on the rear of the projector. As shown in 
Figure 2.24, the upper right corner (
INPUT 1)  typically accepts an RGB signal from 
an external analog RGB source, or it can also be used for YPbPr signals or additional 
video sources. Just to the left of the BNCs, the DVI-I connector (
INPUT 2) accepts 
digital or analog display signals from a computer. Connect analog composite video at 
INPUT 3, or S-video at INPUT 4 from devices such as VCRs, laser disk players, or 
DVD players. At 
INPUT 5 (below INPUT 1), connect serial digital YCbCr (4:2:2) or 
compatible SMPTE signals (note this module can be moved to 
INPUT 6 if desired). 
There are also several optional interfaces available for connecting other sources—
these interfaces slide into the remaining unused option slot, and can be done while 
the projector is running. 
NOTES: 1) See Section 6, Specifications for details regarding compatible inputs. 2) 
Use high quality shielded cables only for all connections. 3) The Dual SD/HD-SDI 
module shown is standard on the Roadster models, optional for the Mirage S+ series. 
 
Figure 2.24. Input Panel 
INPUT 1 consists of 5 BNCs (connectors) for linking to a variety of RGB sources such 
as a PC, Mac, DEC, Sun, SGI, and others. This projector supports multiple sync 
types with RGB signals: sync-on-green, composite sync, and separate H & V syncs. 
NOTE: Depending on your source, you may need a custom adapter cable with BNC 
connectors at the projector end and a different type of connector at the other (such as 
a 15-pin “D” connector for some computer sources). Contact your dealer for details. 
Connect the 
SYNC BNC input(s) first. Then connect the red, green, and blue source 
outputs to the 
RED, GREEN, and BLUE BNCs on the INPUT 1 panel. If the source uses 
sync-on-green, only the red, green, and blue connections are required. If the source 
provides a composite sync output, connect it to the 
SYNC input labeled HOR/COMP. If   Folded O
ptics '
 
Figure 2.23. Rear Screen 
2.4 Source 
Connections 
 RGB Signals ' 
						

							INSTALLATION & SETUP 
  Roadster/Mirage S+ User’s Manual 2-19 
the source provides separate horizontal and vertical sync outputs, connect horizontal 
sync to the 
SYNC input labeled HOR/COMP, and connect vertical sync to SYNC input 
labeled 
VERT. See Figure 2.25, below. 
 Figure 2.25. Connecting RGB Input 
NOTES: 1) If for some reason the projector fails to recognize a signal as an RGB signal, 
specify this Color Space option within the Image Settings menu. See 3.6, Adjusting the 
Image. 2) To connect YPbPr signals–such as from DVDs or analog HDTV sources–to 
INPUT 1, use the red, green and blue BNCs as described in YPbPr Signals (below) 
Connect a YPbPr signal (a.k.a. component video) to 
INPUT 1 or INPUT 2 as shown in. 
Figure 2.26.  
NOTES: 1) If, for some reason, the projector fails to recognize a YPbPr signal, 
specify this Color Space option within the Image Settings menu. See 3.6, Adjusting 
the Image. 2) Do not connect digital
 component signals (known as YCbCr) to INPUT 
1 or 2
. Use the appropriate digital interface option installed at INPUT 5 or 6. 
 
Figure 2.26. Connecting YPbPr 
 
 YPbPr '
 (COMPONENT VIDEO)  
						

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Roadster/Mirage S+ User’s Manual 
INPUT 3 and INPUT 4 provide simultaneous connection of both a composite video 
source (
INPUT 3) and an S-Video source (INPUT 4). See Figure 2.27 below. 
 
Figure 2.27. Connecting Composite Video 
Christie’s Dual SD/HD-SDI input module is standard with the Roadster S+ and 
factory-installed in 
INPUT 5 or INPUT 6. The module’s loop-through capability 
enables incoming serial digital data to be tiled across multiple screens, creating vast 
“mega resolution” displays. Alternatively, the multiple outputs can be overlapped for 
extra-bright displays, or simply distributed to additional projectors for multiple 
screens of the same image. 
The module accepts one or two independent standard- or high-definition serial digital 
inputs, decodes them for processing in the main electronics of the projector, and 
outputs 10-bit YCbCr 4:2:2 video. Either input can be set as the active primary or 
secondary part of a Picture-in-Picture display, and either input can be looped through 
to one (or both) of the module’s BNC outputs. 
NOTE: Selection of these inputs is described in 3.3, Using the Keypads. 
Connect a compatible SMPTE 292M or SMPTE 259M-C source(s) to one or both of 
the inputs located on the left side of the module. The module will automatically 
detect the standard at each input and configure itself accordingly for correct 
termination of the signal. The module also detects and supports dual link 292M and 
SMPTE 372M video standards. For full details, consult the Dual SD/HD-SDI 
manual. 
Optional modules allow you to increase your total number of inputs and/or 
accommodate different signal types, whether analog or digital. Install in the areas 
labeled 
INPUT 6 or (if available) INPUT 5. Options include: 
• RGB 500 Input Module 
• RGB 400BA Input Module 
• RGB 400 Active Loop Thru Input Module 
• Composite/S-Video Input Module (
not currently supported with 
software v1.1 or higher)
 
• PC250 Analog Input Module 
• Serial Digital Input Module 
• DVI Input Module 
• Dual SD/HD-SDI Module 
(standard on the Roadster series) 
For even more sources, connect a 3
rd-party switcher to the RS232 IN port, or, if 
RS422-compatible, connect to the RS422 port.   Com
posite Video '
 Dual SD/HD-SDI '
   Other Optional Inputs ' 
						

							INSTALLATION & SETUP 
  Roadster/Mirage S+ User’s Manual 2-21 
NOTES: 1) Optional digital interfaces cannot be used in a Marquee Case/Power 
Supply.2) See Appendix F, Optional Input Modules for a brief description of each 
interface. 
 
The most common method of controlling the projector is via one of its keypads. As 
an alternative, you may wish to communicate using a PC or similar controller. Such a 
device sends commands and receives feedback via serial links (2 types), Ethernet or 
GPIO communications to the projector, all described below. 
As desired, direct the projector’s IR remote keypad towards the display screen or the 
projector’s IR sensors. Alternatively, connect the remote keypad by cable to the 
remote phono jack (labeled 
REMOTE) input at the back of the projector. 
RS232 Serial Communications 
From most computers, connect a standard RS232 serial communication cable 
between the computer and the projector serial port labeled 
RS232 IN—this 9-pin 
connector is located on the input panel at the rear of the projector (Figure 2.28). In 
the Communications menu, set the projector’s baud rate (default = 115200) to match 
that of the computer. 
 
Figure 2.28. RS232 Serial Communications 
Changing the baud rate is done in the projector’s Communications submenu. See 3.7, 
Adjusting System Parameters and Advanced Controls. 
RS422 Serial Communications 
Some computers can provide RS422 serial communications (often through a plug-in 
adapter or external converter) rather than the more common RS232 standard. RS422 
communication has differential “transmits-and-receives” and is generally better 
suited for long distances than is RS232 communication. Note that RS422 is not 
compatible with RS232—connecting an RS232-compatible PC to RS422 can damage 
the equipment at either end. Consult the documentation provided with your PC if you 
are unsure. 
2.5 Connecting 
Communications 
 Remote Keypads '
 Other Controllers ' 
						

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Roadster/Mirage S+ User’s Manual 
 
Figure 2.29. RS422 Connection to a Computer 
The nine-pin RS422 connector is located at the rear of the projector (Figure 2.29).  
Use this port for communications to and from an RS422-compatible controller. In the 
Communications menu, set the baud rate to match that of your RS422 controlling 
device. 
WARNING 
Do not use an RS422 port unless you are using 
equipment with RS422 capability. The voltage levels of 
this signal can damage incompatible equipment. 
Ethernet Communications 
To add the projector to an existing Ethernet network with other equipment such as 
controllers and other projectors, connect standard CAT5 Ethernet cable between your 
Ethernet controller (or hub) and the Ethernet port at the rear of the projector as shown 
in Figure 2.30. 
CONNECTING TO A PC: If you are connecting the Ethernet port directly to a PC 
(rather than a network or hub), make sure to use a crossover Ethernet cable. Keep in 
mind that an Ethernet link cannot be used for downloading a software upgrade to the 
projector—use RS232.  
						

							INSTALLATION & SETUP 
  Roadster/Mirage S+ User’s Manual 2-23 
 
Figure 2.30. Connecting Ethernet  
Upon connection to an Ethernet network, the projector’s factory default IP address of 
0.0.0.0 will automatically enable the DHCP function (if available on the network) to 
assign a new IP address that is valid and unique for that network. Or, if there is no 
DHCP function available on the network  (or if a specific static IP address for the 
projector is preferred or required), you can set the address in the Ethernet Settings 
submenu or via an ASCII serial command. 
NOTE: Make sure the projector is connected to the network before attempting to 
change its IP address. 
Regardless of how it is assigned, once a projector has a valid and unique address it 
will respond to commands sent to this address. To determine the projector’s current 
IP address, consult the Status or Communications menus. 
Refer to 3.7, Adjusting System Parameters and Advanced Controls for further 
information about setting up and using a projector connected via Ethernet. 
The GPIO Port 
The General Purpose In-Out (GPIO) port enables integration of the projector within 
an established control system (Figure 2.31). ASCII commands sent via the GPIO link 
are stored in projector memory, where they can be triggered as a sequence of events 
in the future. See Appendix E.  
						

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Figure 2.31. GPIO Port 
 
You may wish to chain two or more projectors together so that commands and 
communications to and from a controller are relayed to all projectors. Choose a 
hardware configuration that best suits your desired communication method. 
RS232 NETWORK: To control multiple projectors with a computer/controller having 
an RS232 interface, first set all projectors to the same baud rate as the controller, then 
chain the projectors together by connecting the 
RS232 OUT connector of the first 
projector (already connected to the computer/controller) to the 
RS232 IN connector of 
the next projector in the chain. Continue connecting projectors in this manner until 
you’ve reached the last projector in the chain, so that only the last projector has an 
unused 
RS232 OUT port. See Figure 2.32. 
 
Figure 2.32. RS232 Serial Link Loop-Through at First Projector 
MIXED NETWORK: To control multiple projectors with a computer/controller having 
an RS422 interface, first set them all to the same baud rate as your RS422 controller. 
 
NOTE: You must enable this combination of RS422 and RS232 in the 
Communications menu. Set the “Network Routing” option to “RS232 and RS422 
Joined”. See Section 3 for details. 
2.6 Connecting 
Multiple 
Projectors 
 Serial Links '