Christie HAL Series User manual

HAL SERIES
DLV 1280 Users Manual
Table of Contents
54-007075-06P (12/98)  Software Version 1.2 DLV 1280 User's Manual
iii
Section Contents Page
1.1 The Projector ....................................................................................................1-1
1.2 Components......................................................................................................1-2
1.3 Purchase Record and Servicing.........................................................................1-2
2.1 Quick Setup ......................................................................................................2-1
2.2 Installation Considerations................................................................................2-2
2.3 Projector Position and Mounting......................................................................2-8
2.4 Connecting Sources ........................................................................................2-11
2.5 Connecting to Power.......................................................................................2-15
2.6 Operating Orientation .....................................................................................2-16
2.7 Leveling..........................................................................................................2-16
2.8 Zoom, Focus & Offset ....................................................................................2-17
2.9 Connecting to the Serial Ports.........................................................................2-17
2.10 Keypad Protocols............................................................................................2-20
3.1 Overview...........................................................................................................3-1
3.2 Projector Basics................................................................................................3-1
3.3 Using the Keypads............................................................................................3-3
3.4 Navigating the Menus.....................................................................................3-10
3.5 Working With Sources and Channels .............................................................3-14
3.6 Adjusting the Image........................................................................................3-19
3.7 Adjusting and Checking System Parameters...................................................3-24
3.8 Using Multiple Projectors...............................................................................3-32
3.9 Error Conditions .............................................................................................3-33
4.1 Warnings and Guidelines..................................................................................4-1
4.2 Cleaning............................................................................................................4-3
4.3 Replacing Keypad Batteries..............................................................................4-3
4.4 Replacing the Lamp..........................................................................................4-4
4.5 Replacing the Filters.........................................................................................4-7
4.6 Changing the Lens ..........................................................................................4-10
4.7 Troubleshooting..............................................................................................4-11
5.1 Specifications....................................................................................................5-1
A Glossary...........................................................................................................A-1
B Keypad Reference ...........................................................................................B-1
C Menu Tree........................................................................................................C-1
D Serial Communication Cables..........................................................................D-1
E Optional Interface Modules ............................................................................. E-1
NOTE: Due to constant research, the information in this manual is subject to change without notice
1
Introduction
2
Installation &
Setup
3
Operation
4
Maintenance
5
Specifications
6
Appendices

Section 1
Introduction
DLV 1280 User's Manual
1-1
The HAL Series DLV 1280 is a professional quality projector that uses Digital
Light Valve (DLV) reflective technology from IBM®to project images with
exceptional clarity and brilliance. The
high resolution, contrast and
consistency of DLV 1280 images is
ideal for situations in which superior
readability and detail are crucial, such
as control rooms, boardrooms, and
training venues. A complete
data/graphics/video projector, DLV
1280 can interface with IBM®-
compatible PCs, Macintosh and
computer workstations, and is
compatible with standard international
video formats. Main features are listed below:
◊ 1280 x 1024 pixels resolution
◊ 1000 lumens brightness
◊ Displays input from PCs, Macs, workstations, VCRs, laser-disc players,
video cameras, etc.
◊ NTSC, PAL and SECAM compatible (some models require an optional decoder)
◊ Diagonal screen size up to 30 feet
◊ Set up and adjust images directly or through menus
◊ Memory for up to 99 different “channels” or source setups
◊ Active data loop-through capability for additional destinations
◊ RS-232 input with loop-through for networking multiple projectors
◊ Switcher and controller compatibility
◊ Input switching at projector or with remote keypad
◊ Long lamp life expectancy
◊ Power saving lamp modes for extended lamp life
◊ Interchangeable lenses
◊ Volume control for stereo PA system or (some models) internal speakers
◊ Modular design for ease of servicing
DLV 1280 accepts data/graphics and video input signals for projection onto flat
or curved front or rear projection screens. High brightness light is generated by
an internal 500 watt CERMAX®Xenon lamp. This light is collected and
transmitted by a system of optical components and sent to three DLV panels
responsible for either red, green or blue digitized video information. Light from
Figure 1-1. DLV 1280
1.1 The Projector
Features
'
How it Works
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INTRODUCTION
1-2
DLV 1280 User's Manual
the “on” pixels of each panel is reflected, converged and then projected to the
screen through a single front lens, where the pixels are all superimposed to
create a sharp full-color image.
The projector body is comprised of plastic panels and lid (DVL 1280 only), with
a durable powder-coated metal base. The top cover can be removed for quick
replacement of the lamp, filters or lens. A modular internal design ensures ease-
of-service and minimal down-time.
Make sure you have the items shown below. Fill out the warranty registration
card and mail it directly to Electrohome.
DLV 1280, N. America DLV 1280, overseas export DLV 1280 CR
Projector case covers ✔✔ not included
10’ line cord ✔✔✔
DLV 1280 User’s Manual ✔✔ 1 per installation
Video functions ✔not included not included
Audio functions ✔not included not included
Internal speakers ✔✔ not included
IR remote keypad ✔✔ 1 per installation
Warranty card ✔✔✔
NOTE: The overseas export DLV 1280 and the DLV 1280 CR do not include
video or audio functions. This manual assumes the video/audio options have
been installed.
Complete the information below for your records.
Purchase Record
Dealer:
Dealer Phone Number:
Projector Serial Number:
Purchase Date:
Installation Date:
NOTE: The projector serial number is on the projector's identification label
located on the rear panel of the projector.
If you require technical assistance or if you experience a problem with your
projector, contact the authorized Electrohome dealer from which the projector
was purchased. Whether the projector is under warranty or the warranty has
expired, Electrohome’s extensive factory and dealer service network is always
available. Electrohome service technicians are fully trained to quickly diagnose
and correct projector malfunction, often performing the service on site.
Construction
'
1.2 Components
1.3 Purchase
Record and
Servicing

Section 2
Installation & Setup
DLV 1280 User's Manual
2-1
This section explains how to install and set up the projector. If you are familiar with the projector and want to
quickly set it up for temporary use, follow the Quick Setup instructions. For a complete setup, follow the
instructions and guides covered in the remaining subsections.
NOTE: The overseas export DLV 1280 and the DLV 1280 CR do not include video or audio functions. This
manual assumes the video/audio options have been installed.
Follow these steps for quick setup of the projector:
Position the Projector
•
THROW DISTANCE:
Set the projector at the proper throw distance (projector-
to-screen distance) for your screen size and lens type. Make sure that the
projector front panel is parallel to the screen. See 2.3, Projector Position and
Mounting.
•
CHECK LEVEL:
Rotate the feet until the projector is level. See 2.7, Leveling.
Connect a Source
Locate the input panel at the rear of the projector. Connect RGB inputs such as
PCs to either Dat 1 or Dat 2. Connect video inputs such as VCRs to Vid 1
(composite) or Vid 2 (S-Video). See 2.4, Connecting a Source.
Connect the Power Cord
Plug the AC power cord into the AC power socket at the rear of the projector.
Required input power from 90 VAC to 264 VAC, 50 to 60 Hz is 9 amps.
Turn the Projector ON
Using either the built-in or IR remote keypad, press and hold for a second
or two to turn the projector on. Let the projector warm up for five minutes.
Select a Source
Using either the built-in or IR remote keypad, press , , , or
to select and display the image for the source you have connected.
Adjust Display
Once you have positioned the projector and are displaying a source image, adjust
as follows.
2.1 Quick Setup
Ste
p
1
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Ste
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2
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Ste
p
3
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STEP 4
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STEP 5
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STEP 6
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INSTALLATION & SETUP
2-2
DLV 1280 User's Manual
•
ZOOM:
If you have a zoom lens, rotate the lens barrel
end (closest to the projector) as desired to increase or
decrease the image size.
If you don’t have a zoom lens or if you can’t adjust the
image enough, the projector is likely not positioned at the proper throw
distance for your screen size. Power down, unplug the projector and move it
towards or away from the screen. See 2.3, Projector Position and Mounting
for details.
•
CHECK VERTICAL OFFSET:
To ensure that the image is
located as desired and that the image is a proper
rectangle rather than “keystoned” (having non-parallel
sides), turn the vertical offset knob located on the top of
the unit near the front edge—this is the knob closest to
the lens. Try to achieve the desired overall image position while obtaining a
rectangular image with the best overall brightness. If the image remains
keystoned, the projector may be too high or low for the screen. Also, ensure
that the projector is perpendicular to the screen. See 2.8, Zoom, Focus and
Offset and Figure 2-10.
•
CHECK HORIZONTAL OFFSET:
To mechanically place
your image slightly left or right of center, turn the
horizontal offset knob located on the top of the unit near
the front edge—this is the knob nearest the corner of the
projector. See Figure 2-9.
•
FOCUS:
When the image is the right size and shape,
rotate the lens barrel (at the end furthest from the
projector) until the image is as sharp as possible.
• Press to refine other display settings, press if
you want to select a different source or channel. See 3.5, Working With
Sources and Channels.
Although DLV 1280 delivers both high resolution and high brightness output,
your final display quality could be compromised if the projector is not properly
installed. This subsection discusses issues you should consider before
proceeding with a final installation. Even if you do not intend to use the
projector in a fixed and permanent installation, this subsection will help you to
better understand what may be done to ensure maximum performance.
2.2 Installation
Considerations

INSTALLATION & SETUP
DLV 1280 User's Manual
2-3
Choose the installation type which suits your needs: front or rear screen, floor
mount or inverted mount.
Front Screen, Floor Mount Installation
ADVANTAGES CONSIDERATIONS
• Easy to set up
• Can be moved or changed quickly
• Easy to access
• Shares floor space with audience
Front Screen, Inverted Mount (ceiling) Installation
ADVANTAGES CONSIDERATIONS
• 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
Rear Screen, Floor Mount Installation
ADVANTAGES CONSIDERATIONS
• Projector is completely hidden
• Projector is easily accessed
• Usually good ambient light rejection
• Requires separate room
Rear Screen, Inverted Mount (ceiling) Installation
ADVANTAGES CONSIDERATIONS
• Projector is completely hidden
• Usually good ambient light rejection
• Requires separate room
• Installation cost is usually higher
Rear Screen, Floor Mount with Mirror
ADVANTAGES CONSIDERATIONS
• Projector is completely hidden
• Usually good ambient light rejection
• Requires less space behind screen than
other rear screen installations
• Requires separate room.
• Installation cost is usually higher
Screen type is important when designing a projection system. Inexperienced
users or installers should always consult their dealer when deciding on screen
type. The following guidelines explain the differences between screen types.
Front Screen Installations
There are two basic screen types: flat and curved. The choice between a flat
screen or a curved screen is dependent on audience viewing angle and screen
gain. There is always a trade-off between viewing angle and gain. Viewing
angles for both screen types are illustrated in Figures 2-1 and 2-2 (plan views).
Flat screens offer a gain of about 1 with a viewing angle just less than 180°.
Incident light reflects equally in all directions so the audience can see the display
from various angles. Because of the lower gain, flat screens are more effective
when ambient lighting is reduced.
Installation T
yp
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Flat and Curved Screens
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INSTALLATION & SETUP
2-4
DLV 1280 User's Manual
Figure 2-1. Audience Coverage with Flat Screen
Figure 2-2. Audience Coverage with Curved Screen
Curved screens have gains larger than 1 (due in part to the screen material) and
viewing angles much less than 180°. Most curved screens have different
horizontal and vertical viewing angles. Incident light does not reflect equally in
all directions. The reflected light concentrates in a conical volume or "viewing
cone". Audiences within the viewing cone see a brighter image than that from an
equal area on a flat screen. Audiences outside the viewing cone see a dimmer
image.
NOTE: While DLV 1280 lenses are designed primarily for use with flat screens,
the depth-of-field range for these lenses allows focusing on curved screens as
well. Focus remains sharp, however there may be significant pincushion
distortion, primarily at the top of the screen..
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. The main advantage of the diffused screen is its wide viewing
angle, similar to that of a flat screen for front screen projection. 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.
To summarize, optical screens are better suited for brightly lit rooms where the
audience is situated within the viewing cone. Diffused screens are best suited
when a wide viewing angle is required but there is low ambient room lighting.

INSTALLATION & SETUP
DLV 1280 User's Manual
2-5
Choose a screen size which is most appropriate for your lens and application.
Table 2-1. Screen Size Ranges
Lens Type Diagonal Screen Size* (if 5:4)
2:1 - 3:1 zoom 2.3 - 30 (0.7 - 9 meters)
1.2:1 fixed 4 - 10 (1.2 - 3.1 meters)
1.5:1 - 3:1 zoom 4 - 30 (1.2 - 9 meters)
3:1 - 7:1 zoom 6 - 30 (1.8 - 9 meters)
Note: Stated screen sizes refer to the diagonal size of a 5:4 screen.
Choose a screen aspect ratio which is most appropriate for your application.
Aspect ratio describes the proportion of the screen and is expressed as a ratio of
width to height, such as “4:3” or “5:4”. Ideally, to exactly fill a screen with an
image, the aspect ratio of the screen should correspond to the aspect ratio of the
image, which depends
on the source in use.
For example, standard
video from a VCR has
a 4:3 aspect ratio,
whereas a high
resolution SXGA
signal (1280 x 1024)
has a 5:4 aspect ratio.
See Figure 2-3.
NOTE: With a few exceptions, sources with less than 1280 x 1024 resolution
have a 4:3 aspect ratio. The correct aspect ratio for 1280 x 1024 sources is 5:4.
Using a 5:4 Screen
If you use a mix of sources—i.e., those with the rectangular 4:3 aspect ratio as
well as those with the slightly more square 5:4 aspect ratio—a 5:4 screen will
likely provide the most flexibility. With a 5:4 screen, a 5:4 source image
naturally fills the screen at an established
throw distance. Filling the same screen
with a 4:3 source image requires only a
simple software adjustment to slightly
expand the image to the top and bottom
edges of the screen (Figure 2-4). See 3.6,
Adjusting the Image.
Using a 4:3 Screen
With a 4:3 screen, 4:3 sources will naturally fill the screen at an established
throw distance. Filling the same screen with a 5:4 source image (one from a 1280
x 1024 source) requires a reduction in this throw distance so that the “too tall”
5:4 image no longer spills over the top or bottom of the screen. Once set up in
this manner, all images will then have side borders (Figure 2-5), with most 4:3
images changing aspect ratio as well.
NOTE: For existing installations having multiple 4:3 screens, you can use
Electrohome’s EX-1200 or EX-2000 Display Wall controller to fill each screen.
Screen Size
'
Screen As
p
ect Ratio
'
Figure 2-3. Aspect Ratios
Figure 2-4. Adjusting a 4:3 Image

INSTALLATION & SETUP
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DLV 1280 User's Manual
Figure 2-5. Using a 4:3 Screen for a Mix of 5:4 and 4:3 Sources
While it is always preferable to operate the projector in an ideal projection room
environment, the high brightness output of DLV 1280 is well suited for locations
where ambient lighting may be less than optimum for projection. For temporary
installations where the room may not be designed for projection, there are many
simple things which can be done to avoid problems caused by unwanted light.
Visiting a movie theater can give you an idea of what makes a good projection
environment. Walls, floors and furnishings are dark and matte finished. A
projection room should not have reflective white ceilings or non-directional
lighting such as fluorescent lights. The white ceiling spreads light, making the
room appear brighter. Keep lighting and reflections to a minimum.
If it is not possible to eliminate fluorescent lights, consider using parabolic
reflectors ("egg crates") to direct light down to the floor. Incandescent spot
lighting is a better way to obtain illumination. Light dimmers or rheostats allow
you to further control the lighting.
Outside windows are undesirable in any projection room. A small crack between
curtains on a sunny day can wash out a projected image. If you do have
windows, make sure that window coverings are opaque and overlapping — some
window coverings are designed to provide up to 100 percent blockage of outside
light. Ideally, the material should have a matte finish.
To minimize the effects caused by unwanted light from door and aisle ways,
carefully choose the position of your projector and screen. Figure 2-6 shows an
installation where poor screen placement allows too much unwanted light to
enter the screen. In Figure 2-7, the screen and the projector are positioned to
minimize the effect of unwanted light.
Figure 2-6. Poor Screen Placement
Room Li
g
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INSTALLATION & SETUP
DLV 1280 User's Manual
2-7
Figure 2-7. Better Screen Placement
Even with all lighting removed it is still possible that room reflections within the
room can degrade the image. Light from the projection screen should be
absorbed by the ceilings, walls and floors so that it will not be reflected back to
the screen. Again, reflective surfaces should be kept to a minimum.
Here are some other considerations and tips which can help you improve your
installation:
• Ventilation is an important factor when preparing a projection room. The
ambient temperature should be kept constant and below 35°C (95°F). Keep
the projector away from heating and/or air conditioning vents. Changes in
temperature can cause drifts in the projector circuitry which may affect
performance.
• Keep the projector away from devices which radiate electromagnetic energy
such as motors and transformers. Common sources of these are slide
projectors, speakers, power amplifiers, elevators, etc.
• For rear screen applications, less space is required if a mirror is used to fold
the optical path.
• Choose the right screen size for the application:
◊ As screen size increases, magnification increases which reduces
brightness. Select a screen size which is appropriate for the venue,
but not larger than that required.
◊ Installing a large screen in a small room is similar to watching
television close up; too large a screen can overpower a room. A good
rule of thumb is to be no closer than 1.5 times the width of the
screen.
◊ Larger screens require greater attention to lighting conditions.
• When laying out the projection room, consider positioning the projector and
screen in a manner which will achieve maximum audience coverage and
space efficiency. For example, placing the screen along the larger wall in a
rectangular room will reduce audience coverage. Figure 2-8 shows two
examples of how audience coverage is maximized.
• Keep in mind that for good display of text information, the image size must
allow the audience to distinguish all text clearly. In general, the eye can
Other Considerations
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INSTALLATION & SETUP
2-8
DLV 1280 User's Manual
recognize a letter if eye-to-text distance is less than 150 times the height of
the letter. Text will normally become illegible at a greater distance despite
the sharpest and clearest of images.
Figure 2-8. Screen Locations for Maximum Audience Coverage
As mentioned, 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 horizontal/vertical position must be determined for
every new installation. Both depend on screen size and projector lens type. Make
sure that the room can accommodate the required position of the projector for the
chosen screen size.
Throw distance is the distance between the projector's front feet and the screen
(measured perpendicular to the screen and projector, not necessarily parallel to
floor). As the distance between the projector and the screen increases, image size
also increases.
Throw distance is roughly equal to the horizontal width of the screen multiplied
by the type of lens you are using. For example, if using a 1.2:1 lens, throw
distance should be roughly equal to 1.2
x
the horizontal screen width. Once you
know your horizontal screen size, you can determine how far away the projector
should be:
Table 2-2. Throw Distance Guide
Lens Type Approx. Throw Distance
2:1 - 3:1 2x to 3x horizontal screen width
1.2:1 (no zoom) 1.2x horizontal screen width
1.5:1 - 3:1 1.5x to 3x horizontal screen width
3:1 - 7:1 3x to 7x horizontal screen width
NOTES: 1) Throw distance is measured perpendicular to the screen and
projector, not necessarily parallel to the floor. 2) It is good practice to simulate
the setup with the projector fully warmed-up to determine the actual throw
distance required.
2.3 Projector
Position and
Mounting
Throw Distance
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INSTALLATION & SETUP
DLV 1280 User's Manual
2-9
Correct horizontal position of the projector can ensure that the image is
positioned properly on the screen. With any lens installed, the image can be
manually offset left or right by a distance of up to 25 pixels (Figure 2-9). Turn
the horizontal offset adjustment knob on the top edge of the projector as desired.
Figure 2-9. Horizontal Offsets, All DLV 1280 Lenses
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 ensures that the
image will be rectangular in shape rather than keystoned (having non-parallel
sides). Depending on the type of lens you are using, the image can also be offset
up or down by turning the vertical offset adjustment knob on the top edge of the
projector.
The number of pixels by which you can raise or lower an image are listed in
Table 2-3. In addition, refer to Figure 2-10 to see how these pixel offsets affect
the placement of your image. If your projector is inverted, such as with a ceiling
-mounted projector, turn the illustration upside-down.
Table 2-3. Vertical Offset Ranges, in Pixels
Lens Type Vertical Offset (in Pixels)
2:1 - 3:1 zoom (standard) -25 to +366
1.2:1 fixed (opt.) fixed @ 0,
± 25 pixels
1.5:1 - 3:1 zoom (opt.) -25 to +512 pixels
3:1 - 7:1 zoom (opt.) -25 to +512 pixels
NOTE: If you cannot raise or lower the image enough, or if the image becomes
keystoned or exhibits uneven brightness, the projector is probably too high or
low in relation to the screen.
Horizontal Position
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Vertical Position
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INSTALLATION & SETUP
2-10
DLV 1280 User's Manual
Figure 2-10. Vertical Offset Ranges, All DLV 1280 Lenses
For typical front or rear floor mounts, secure the projector to
a stable table or cart. Take particular 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, but fine adjustments to the projector
level can be made by adjusting the height of the projector legs; refer to 2.7,
Leveling for details.
To invert the projector you must use a proper ceiling mount fixture. For more
information, contact Electrohome.
Mountin
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INSTALLATION & SETUP
DLV 1280 User's Manual
2-11
In rear screen applications where space
behind the projector is limited, a mirror may
be used to fold the optical path. See Figure 2-
11. The position of the projector and mirror
must be accurately set. If considering this type
of installation, call your dealer for assistance.
At the rear of the projector is a standard input panel to which you may connect a
variety of source types (Figure 2-12). NOTE: Audio/video not standard for all
models. The illustration below shows all options installed.
Figure 2-12. Rear Connector Panel
•
DAT 1:
A standard RGB input with five BNC connectors. Connect RGB
inputs from computer sources such as VGA, SVGA, Mac, PowerMac, DEC,
Sun, SGI and others. DLV 1280 supports multiple sync types: sync-on-green
for data, composite, and separate H & V. If desired, loop the signal out
through the
DAT OUT
port to a second destination, such as a monitor or
another projector.
•
DAT 2:
A standard RGB input with a VGA input (15-pin) connector. Connect
compatible computer analog signals to the “Dat 2” port and, if desired, loop
the signal out through the
DAT OUT
port to a second display, such as monitor
or another projector.
•
VID 1:
A standard BNC connector for composite video sources.
•
VID 2:
A pair of standard BNC connectors (Y and C, for luminance and
chrominance) or a single 4-pin mini DIN connector for S-Video sources.
To control audio levels, connect pre-amplified (line level) audio inputs to the left
and right audio inputs corresponding to the input labeling (Dat 1, Dat 2, Vid 1,
or Vid 2). Then, if desired, connect
AUDIO OUT
to external audio amplification
equipment. Use RCA-type cables and connectors for all audio.
Folded O
p
tics
'
Figure 2-11. Folded Optics
2.4 Connecting
Sources

INSTALLATION & SETUP
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DLV 1280 User's Manual
The RGB input (DAT 1) consists of five BNC type connectors for connection to
a variety of RGB sources. Such sources include VGA, SVGA, SXGA, XGA,
Mac, PowerMac, DEC, Sun, SGI and others. DLV 1280 supports multiple sync
types: sync-on-green for data, composite, and separate H & V (3-,4-, or 5-wire
RGB).
Figure 2-13. Connecting to RGB Inputs
Connect the sync BNC inputs. Then connect the red, green and blue source
outputs to the RED, GREEN, and BLUE inputs on the panel. If the source uses
sync-on-green, you only need to connect the red, green, and blue. If your source
provides a composite sync output, connect it to the H input. Ifyour source
provides separate horizontal and vertical sync outputs, connect horizontal sync to the H
input and connect vertical sync to the V input. See Figure 2-13.
Connect PC analog sources to Dat 2 as shown in Figure 2-14. You may need an
adapter if you are connecting a Mac to Dat 2.
Figure 2-14. Connecting PC Analog Input
RGB/Data In
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DLV 1280 User's Manual
2-13
The Composite Video and S-Video inputs provide simultaneous connection of a
composite video source (
VID 1
) and an S-Video source (
VID 2
) to the projector.
For each video input, use the corresponding audio input/output as shown.
If you have a composite video source, connect it to the projector’s rear input
panel using the extreme left composite BNC connector labeled
VID 1
. See Figure
2-15.
Figure 2-15. Connecting a Composite Video Source
VID 1 AUDIO:
To control audio levels in an audio/visual system, connect pre-
amplified (line level) audio inputs to the left and right audio inputs labeled
VID 1
.
Then connect the audio outputs (
AUDIO OUT
) to external audio amplification
equipment. All audio connection cables require standard RCA-type plugs.
If you want to connect an extra composite video source, connect to
DAT 1
using
the green BNC connector (labeled “
G
”) and use
DAT 1 AUDIO
. See Figure 2-16.
Figure 2-16. Connecting an Extra Composite Video Source
Composite Video
'
In
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ut
Extra Composite Video
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In
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INSTALLATION & SETUP
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DLV 1280 User's Manual
If you have an S-Video (SVHS) source, connect it to the projector’s rear input
panel at
VID 2.
Depending on the source, use either the two BNC connectors
labeled “
Y/Cr
and
C/Cb
” (luminance and chrominance) or use the 4-pin mini DIN
connector labeled “
SVID
”— do not use both types of connectors simultaneously.
See Figure 2-17.
Figure 2-17. Connecting an S-Video Source
VID 2 AUDIO:
To control audio levels in an audio/visual system, connect pre-
amplified (line level) audio inputs to the left and right audio inputs labeled
VID 2
.
If you want to connect an extra S-Video source, connect to
DAT 1
using the red
and blue BNC connectors (labeled “
R
” and “
B
”) and use
DAT 1 AUDIO
. Make
sure to connect the “Y” signal (luminance) to red, the “C” signal (chrominance)
to blue. See Figure 2-18.
Figure 2-18. Connecting an Extra S-Video Source
S-Video In
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Extra S-Video In
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DLV 1280 User's Manual
2-15
Connect YCrCb video (component video) sources as shown in Figure 2-19. Note
that if you use the video inputs you will connect to both
Vid 1
and
Vid 2
simultaneously for the single source. The projector detects such a connection as
a
Vid 1
source, and
Vid 2
cannot be used.
Figure 2-19. Connecting YCrCb Video
NOTES:1) If you connect YCrCb video using Vid 1 and Vid2, you cannot also
connect an S-video source using the 4-pin DIN. 2)DLV 1280 does not
automatically distinguish between a YCrCb signal and other RGB sources. When
using YCrCb video, turn the YCrCb option on in the Image Settings menu. See
3.6, Adjusting the Image.
YCrCb AUDIO: Connect pre-amplified (line level) audio inputs to the left and
right audio inputs labeled
VID 1
or
DAT 1,
depending on where your video input is
connected (see Figure 2-19).
Plug the AC power cord
into the input socket
located at the left rear of
the projector (Figure 2-
20). Plug the three-
prong end of the power
cord in a grounded AC
outlet. Input voltage to
the projector must be
between 90 and 264
VAC, 50 or 60 Hz. The
power source must be
capable of supplying
900 watts of power to
the projector.
NOTE: Once the projector is turned off, the lamp cooling fans will continue to
run for approximately five minutes to cool the lamp. The fans will then
automatically shut off. Do not unplug the power cord before the fans stop.
YCrCb or
'
Com
p
onent Video
2.5 Connecting to
Power
Figure 2-20. Connecting Power

INSTALLATION & SETUP
2-16
DLV 1280 User's Manual
DLV 1280 is set up at the factory for use in a front screen, floor mount
orientation. If the installation is ceiling mount or rear screen, your initial images
will likely be displayed upside down and/or reversed. To correct, you must
change the image orientation from within the Preferences menu. You may prefer
to do this before
physically installing the
projector, however it can
be done at any time. See
Section 3, Operation for
further information.
In the Preferences menu,
highlight and select the
"Orientation" option to
display a pull-down list.
From a front screen floor
mount installation, select
from Front, Rear,
Inverted Front, or
Inverted Rear according
to your intended installation. See Figure 2-21.
For most installations
you will want to make
sure that the projector
is level from side-to-
side and that the lens
surface is parallel to
the screen. This will
ensure a rectangular
image that is level. To
make small corrections
to the projector's level, rotate each leg as necessary to raise or lower.
Special Mounting Angles
If desired, the projector can be rotated and mounted at any angle front-to-back.
The side-to-side tilt, however, must not exceed ±45°. This limit ensures that the
arc lamp in the projector operates properly and safely, and applies to all
projectors using similar lamps. See Figure 2-22.
WARNING
Do not operate the projector outside these ranges.
Figure 2-21. Orienting the Image
2.6 Operating
Orientation
2.7 Leveling

INSTALLATION & SETUP
DLV 1280 User's Manual
2-17
Figure 2-22. Ranges for Special Mounting
Once the projector is properly set up and projecting an image on screen, you are
ready to make quick manual display adjustments.
If you are using a zoom lens, grasp the lens barrel close to where it enters the
projector. Turn it as necessary to decrease or increase the size of the image at
your current throw distance. Take care not to touch the lens surface.
Turn the outside end of the lens barrel until you obtain the best overall image
clarity.
Turn the Horizontal Offset adjustment knob to move your image slightly to the
left or right of center.
Depending on the lens present, turning the Vertical Offset adjustment knob can
raise or lower the image without causing keystone distortion. Turn the knob until
you achieve the desired placement of the image while maintaining its rectangular
shape. See 2.3, Projector Position and Mounting.
For further display adjustments through keypad commands and on-screen menus,
refer to Section 3, Operation.
Use RS-232 (serial) connections when controlling the projector with a personal
computer having an RS-232 serial interface or when using the projector with a
Marquee (or other) switcher. The RS-232 ports are located on the rear control
panel of the projector as shown in Figure 2-23.
2.8 Zoom, Focus &
Offset
Zoom
'
Focus
'
Horizontal Offset
'
Vertical Offset
'
2.9 Connecting to
the Serial Ports