Electrohome VistaGraphX 5000 User manual

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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...................................................................... 2-6
2.4 Source Connections........................................................................................ 2-10
2.5 Power Connection.......................................................................................... 2-13
2.6 Operating Orientation..................................................................................... 2-14
2.7 Leveling ......................................................................................................... 2-14
2.8 Zoom, Focus & Vertical Offset...................................................................... 2-15
2.9 Serial Port Connections.................................................................................. 2-15
2.10 Keypad Protocols........................................................................................... 2-18
3.1 Overview.......................................................................................................... 3-1
3.2 Projector Basics ............................................................................................... 3-1
3.3 Using the Keypad............................................................................................. 3-3
3.4 Navigating the Menus .................................................................................... 3-11
3.5 Using Inputs and Channels............................................................................. 3-16
3.6 Adjusting the Image ....................................................................................... 3-21
3.7 Adjusting and Checking System Parameters.................................................. 3-32
3.8 Using Multiple Projectors .............................................................................. 3-39
3.9 Error Conditions............................................................................................. 3-38
4.1 Warnings and Guidelines ................................................................................. 4-1
4.2 Cleaning ........................................................................................................... 4-3
4.3 Replacing Keypad Batteries............................................................................. 4-3
4.4 Replacing the Lamp and Filter......................................................................... 4-4
4.5 Replacing the Lens........................................................................................... 4-9
4.6 Troubleshooting ............................................................................................. 4-10
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 Throw Distance................................................................................................ E-1
F Optional Input Modules ................................................................................... F-1
NOTE: Due to constant research, all information in this manual is subject to change without notice
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VistaGRAPHX 5000 is a professional-quality DMDprojector that uses Digital
Light Processing(DLP) technology from Texas Instruments to achieve high-
brightness multimedia and video projection. It is ideal for use in large audience
venues in which there may be high levels of ambient light, such as in
auditoriums and lecture halls. The VistaGRAPHX 5000 is compatible with
standard international video formats and can interface with IBM-compatible
PCs, Macintoshcomputers, and workstations. Features include:
◊ 1024 X 768 pixels resolution
◊ over 4500 ANSI lumens, contrast ratio of 250:1 ANSI, 400:1 full field
◊ interchangeable lenses for diagonal screen sizes up to 40 feet
◊ NTSC, PAL and SECAM compatible (requires optional decoder)
◊ displays input from PCs, VCRs, laser-disc players, video cameras, etc.
◊ intuitive on-screen menus
for setup and control
◊ built-in and infrared (IR)
remote keypads
◊ controller and switcher
compatibility
◊ keypad selectable input
switching
◊ RS-232 input with loop-
through for networking
multiple projectors
◊ RS-422 input for long distance control
◊ 5-language capability
◊ modular design for ease of servicing
VistaGRAPHX 5000 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 1000 watt CERMAXXenon lamp. This light is
modulated by three DMD (digital micromirror device) panels which each
provide digitized red, green, or blue color information. Light from 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 aluminum panels with an ABS front bezel.
Covers can be removed as necessary for quick replacement of the lamp or filter.
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The projector's modular internal design provides for ease-of-service and minimal
down-time.
When you receive the VistaGRAPHX 5000 your dealer will have already
unpacked it, inspected it, and prepared it for use. Included with the standard
projector is an IR Remote Keypad, a line cord (power cord), a VistaGRAPHX
5000 User's Manual and a Warranty Registration Card. Make sure you have all
these items. Immediately fill out the warranty registration card and mail it
directly to Electrohome.
NOTE: VistaGRAPHX 5000 does not include a video decoder module
(optional). This manual assumes that the video decoder option has been installed
in the projector.
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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 malfunctions. Complete service manuals and updates are available to
service technicians for all new projector models manufactured by Electrohome.
If you have a problem with your projector and require assistance, contact the authorized
Electrohome dealer from which the projector was purchased. In many cases, servicing
can be performed on site. Fill out the information below foryour records.
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NOTE: The projector serial number is on the projector's identification label located near
the center on the rear panel of the projector.
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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.
NOTES: 1) The lens for the projector is not mounted when shipped from the factory. For instructions on how to
install or replace a lens, refer to 4.5, Replacing the Lens. 2) This manual assumes the video decoder is installed.
Follow these 6 steps for quick setup of the projector.
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Set the projector at the proper throw distance (projector-to-screen distance) and
vertical position. See 2.3, Projector Position and Mounting. Make sure that the
projector is level from side-to-side (see 2.7, Leveling).
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Locate the input panels at the rear of the projector. The upper right panel accepts
an RGB input (via BNC connectors). The lower left panel accepts a composite
video and S-video input. Connect a source to the appropriate panel.
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Plug the special notched AC line cord (power cord) into the AC power socket at
the left rear of the projector. This cord is rated at 15 amps rather than the 8-10
amps in other typical cords. Input power required is 180 VAC to 264 VAC.
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Using either the IR remote or built-in keypad, press and hold for a second
to turn the projector on. Let the projector warm up for five minutes. The Power
LED should glow a steady green.
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Using either the IR remote or built-in keypad, press (or
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connected in Step 2. By default, an incoming image will resize to fill as much as
possible of all available pixels (1024 x 768) while maintaining original aspect ratio.
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With the input image displayed, rotate the lens barrel to increase or decrease
image size (applies to zoom lenses only). Next, rotate the focus adjustment knob
(next to the lens barrel) to achieve best focus. Then rotate the nearby Vertical
Offset knob to achieve the best overall image position, focus and brightness
without distorting the geometry of the image. Press to refine other display
adjustments, press
&KDQ
to select a different source/channel. See 3.5, Using
Inputs and Channels.
Although VistaGRAPHX 5000 delivers a high brightness quality output, the 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 VistaGRAPHX 5000 in a fixed
and permanent installation, this subsection will help you to better understand
what may be done to enhance display performance.
Choose the installation type which suits your needs: front or rear screen, floor
mount or inverted mount.
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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.
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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 Figure 2-1 and Figure 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.
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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: VistaGRAPHX 5000 lenses are designed primarily for use with flat
screens. However, its depth-of-field range allows the lens to be focused on
curved screens as well. Focus remains sharp in the corners, however there may
be significant pincushion distortion, primarily at the top of the screen.

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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.
Screen size may be from 5 to 40 feet diagonal, depending on the lens you are
using. For instance, a 1:1 lens produces a 6-30 foot image size, whereas a 4-7:1
zoom lens produces a 10-40 foot image size. Choose a screen size which is
appropriate for your lens and application. Keep in mind that if the projector will
be used to display text information, the image size must allow the audience to
recognize all text clearly. The eye usually 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 may be illegible at a distance despite the image being projected
sharply and clearly on the screen.
To fill a screen with an image, the aspect ratio of the screen should be equal to
the aspect ratio of the image. The aspect ratio of an image is 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).
Note: Screen size is often specified as diagonal size. Screens specified by
diagonal size have aspect ratios of 4:3. Screens with other aspect ratios are not
typically specified by diagonal size.
The high brightness output of VistaGRAPHX 5000 is well suited for locations
where ambient lighting is less than optimum for projection; however, it is
desirable that the projector be operated in an ideal projection room environment.
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 white reflective 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.
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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 2-3 shows an
installation where poor screen placement allows too much unwanted light to
enter the screen. In Figure 2-4, the screen and the projector are positioned so that
unwanted light is minimized.
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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
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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 2-5 shows two
examples of how audience coverage is maximized.
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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 projector lens type you are using. 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.
It is measured perpendicular to the lens surface and screen surface. As you move
the projector farther from the screen, the image becomes larger.
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