Christie Projector Mirage 5000 User Manual

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7+( 9(57,&$/ 326,7,21 of the projector in relation to the screen also depends on the
size of the screen and the lens type. Correct vertical position helps ensure that the
image will be rectangular in shape rather than keystoned (having non-parallel sides)
and that image focus and brightness both remain optimized.
In addition, vertical position of the image can be offset—that is, moved up or done—
either by turning the top knob on the front of the projector (the one nearest to the IR
sensor) in non-motorized projectors, or through software in motorized projectors.
Offsets range up to 130%, depending on the specific lens, whether it is motorized or
not, what amount of zoom is in effect and whether or not you are also offsetting
horizontally.
See Table 2.1 for the maximum percentage of the image that can be displayed above
or below the center of each type of motorized lens. These image offsets are also
illustrated in Figure 2.9.
NOTE: Shown are approximate 
motorized offset ranges—manual offsets standard in
Mirage 2000/5000 may differ.
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 NOTE: VistaGRAPHX lens. Threaded lens adapter required.
The 0.8:1 lens is not recommended for use in SXGA models.
Motorized ZOOM feature is not available for VistaGRAPHX lenses.
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NOTES: 
1) If you cannot raise or
lower the image enough using
mechanical vertical offsets, try
adjusting 
V-Position in the 
Size
and Position menu (see 
3.6,
Adjusting the Image). 
2) If the
image becomes keystoned or
exhibits uneven brightness, the
projector may simply be too high
or low in relation to the screen. 
3) Recommended offset ranges can be exceeded,
however this may affect image quality. 
4) Simultaneous 
horizontal and 
vertical offset
limits the adjustment range of each.
7+( +25,=217$/ 326,7,21 of the image can be offset—that is, shifted left or right
of lens center—either by turning the bottom knob on the front of the projector (the
knob farthest from the IR sensor) in non-motorized projectors or through software in
motorized projectors. The maximum horizontal offset for lenses that can be installed
in this projector is shown in Figure 2.10. This value expresses the maximum
percentage of the image that can be projected to one side of the lens center (roughly
77%, depending on the lens). 
						

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For typical front or rear floor mounts, mount the projector on a
secure table or cart. Take care with a mobile cart—avoid
sudden stops, excessive force and uneven surfaces that may
cause the projector and cart combination to overturn.
The table or cart should be reasonably level. Fine adjustments to the projector level
can be made by adjusting the height of the projector legs; refer to 2.7, Leveling for
details.
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Note that 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. The
side-to-side tilt, however, must not exceed 15° (see Figure 2.11). This limit ensures
that the arc lamp in the projector operates properly and safely. Always make sure that
exhaust air from the projector does not vent towards the lens, otherwise you may
detect heat waves in your projected image.
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You must use the proper ceiling mount fixture (and/or stacking kit, if applicable) for
your projector. For more information, contact your dealer.
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In rear screen applications where space behind
the projector is limited, a mirror may be used
to fold the optical path. See right. The position
of the projector and mirror must be accurately
set—if considering this type of installation, call
your dealer for assistance.
The rear panel of the projector provides standard input panels to which you may
connect a variety of sources. See Figure 2.12–the lower left area (
,1387 ) typically
accepts an RGB signal from an external RGB source, or it can also be used for YPbPr
signals or additional video sources. The upper right panel–the optional Video
Decoder Module–accepts only composite video at 
,1387  or S-video at ,1387 from
devices such as VCRs, laser disk players or DVD players. There are also several
optional interfaces available for connecting other sources at 
,1387 Such an option
installs in the upper left area, just above 
,1387 .
NOTE: For all connections, use only high-quality 
shielded cables.
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,1387  provides 5 BNCs (connectors) for linking to a variety of sources, typically to
an RGB source such as VGA, SVGA, XGA, Mac, PowerMac, 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 the 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 computer sources). Contact your dealer.
Connect the 
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The video decoder input panel provides simultaneous connection of both a composite
video source (
,1387 ) and an S-Video source (,1387 ).
If connecting a composite video source, use the Composite BNC connector 
or the
RCA phono jack at 
,1387 –do not use both as inputs. See Figure 2.15.
NOTE: If you want to loop a composite signal through to another projector or
display device, see 
Video Loop Through later in this section.
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The video decoder input panel provides simultaneous connection of both a composite
video source (
,1387 ) and an S-Video source (,1387 ).
If connecting an S-Video source, use the 4-pin mini DIN connector 
or the Y and C
BNC connectors (luma and chroma) at 
,1387 ²do not use both as inputs. See Figure
2.16.
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NOTE: If you want to loop an S-video signal through to another projector or display
device, see 
Video Loop Through below. 69LGHR

 
						

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To loop a single incoming video signal input (connected at the video decoder)
through to another projector or display device, use the empty connector(s) adjacent to
this same input as described below.
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&211(&7,216 See Figure 2.17. From your source, connect a composite video signal
to 
,1387  using either the small phono plug or the adjacent BNC. Connect a second
cable from whichever 
,1387  connector is free to one of the composite video inputs
of the next display device or projector. Continue this looping method for each
projector, using either the phono plug or the adjacent  BNC as input into 
,1387 
then using the other connector as an output (i.e., loop through). Whether you use the
BNC or the phono plug as input or output depends on the type of cable you have on
hand and what type of connectors are on each end.
9,(2 7(50,1$7,21 In the Preferences
 menu, make sure “Video Termination” is
checked for the final projector only
. All other projectors must have this option
unchecked in order for the signal to continue. For other types of display devices in
the chain, typically a “Hi-Z” switch position is needed.
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