Electrohome VistaGRAPHX 10K 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...................................................................... 2-8
2.4 Source Connections........................................................................................ 2-12
2.5 Power Connection.......................................................................................... 2-16
2.6 Operating Orientation..................................................................................... 2-16
2.7 Leveling ......................................................................................................... 2-17
2.8 Zoom, Focus & Vertical Offset...................................................................... 2-17
2.9 Serial Port Connections.................................................................................. 2-17
2.10 Keypad Protocols........................................................................................... 2-21
3.1 Overview.......................................................................................................... 3-1
3.2 Projector Basics ............................................................................................... 3-1
3.3 Using the Keypad............................................................................................. 3-5
3.4 Navigating the Menus .................................................................................... 3-12
3.5 Using Inputs and Channels............................................................................. 3-17
3.6 Adjusting the Image ....................................................................................... 3-21
3.7 Adjusting and Checking System Parameters.................................................. 3-33
3.8 Using Multiple Projectors.............................................................................. 3-39
3.9 Error Conditions............................................................................................. 3-40
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............................................................................................. 4-12
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 10K Roadie is a professional-quality DMDprojector that uses 3-
chip Digital Light Processing(DLP) technology from Texas Instruments to
achieve stunning ultra high-
brightness multimedia and video
projection. It is a rugged
projector ideal for use in extra
large audience venues, such as
auditoriums, arenas and outdoor
stages. The VistaGRAPHX 10K
Roadie is compatible with
standard international video
formats and can interface with
IBM-compatible PCs,
Macintoshcomputers, and
workstations. Features include:
◊up to 10000 ANSI lumens brightness
◊contrast ratio greater than 160:1 ANSI; over 300:1 full field
◊1024 x 768 pixels true resolution, with other resolutions fully scaleable
◊independent horizontal and vertical size adjustment for custom scaling
◊interchangeable lenses for diagonal screen sizes up to 40 feet
◊displays NTSC, PAL and SECAM video input (requires optional decoder)
◊displays input from PCs, VCRs, laser-disc players, video cameras, etc.
◊memory for up to 99 custom “channels” (source setups)
◊intuitive on-screen menus or hidden direct control
◊identical built-in and remote keypads
◊controller and switcher compatibility
◊input switching with keypad
◊Intelligent Lens Systemfor automatic recall of lens settings from channel to
channel
◊built-in RS-232 input for computer control and networked projectors
◊RS-422 input for extra long distance control
◊rugged, functional design for harsh environments and secure handling
◊modular design for easy servicing
VistaGRAPHX 10K 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 1.8 kilowatt Xenon arc lamp, then modulated by three
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DMD (digital micromirror device) panels that 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 all
pixels are perfectly superimposed as a sharp full-color image.
The projector enclosure is comprised of a combination of metal panels,
extrusions and polymer bezels. Separate access doors and grill panels are easily
removed for quick replacement of the lamp and filter. Modular internal design
provides for ease-of-service and minimal down-time.
Included with the standard projector is a built-in keypad, infrared (IR) remote
keypad, integral 30 amp line cord, 4 eye bolts, and a VistaGRAPHX 10K User's
Manual. Make sure you have all these items, and note that if you have purchased
the projector, a purchaser’s Warranty Registration Card is also included — fill
out this card and return it directly to Electrohome.
NOTE: While the VistaGRAPHX 10K does not include a video decoder module
(optional), this manual assumes that the video decoder is installed.
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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 purchased VistaGRAPHX 10K projectors.
If you have a problem with the projector and require assistance, contact your
dealer or Electrohome. In many cases, servicing can be performed on site. If you
have purchased the projector, fill out the information below and keep with your
records.
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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 below. For a more 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 temporary 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 and Appendix E.
Make sure that the projector is level from side-to-side (see 2.7, Leveling).
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Locate the four input panels at the front left corner 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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The projector has its own integral 30-amp line cord for connecting to AC. Input
power required is 220 - 240 VAC, 50 to 60 Hz @ 12 amps. Twist plug to secure.
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Using either keypad, press 3RZHU-and hold for a second or two to turn the
projector on (or press 3RZHU-21 ). Let the projector warm up for about five
minutes. The Power LED and the AC LED should both glow a steady green.
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Using either keypad, press
,QSXW4
,
,QSXW5
,
,QSXW6
, or
,QSXW7
to select anddisplaythe image
forthesource you connected in Step2.It will resize as needed, producing an image
as large as possible while maintaining the original aspect ratio.
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With the input image displayed, press
/HQV
on either keypad. In the Lens menu
that should appear, press
(QWHU
to adjust the first double slidebar for focus and
zoom (NOTE: This zoom adjustment requires a VistaGRAPHX ILS

zoom lens).
Use the keypad as shown above to focus the image clearly and to increase or
decrease image size (applies to motorized zoom lenses only). If desired, adjust
horizontal or vertical options to shift the image location. Press
(QWHU
when you are
done with a double slidebar. To go to the other slidebar, press or and press
(QWHU
. Or simply press the desired option number.
NOTE: If the menu does not appear when you press
/HQV
, the OSD (on-screen
display) has likely been turned off. You can still adjust the options as described,
or press and hold 26'-for a moment if you want to turn the menu back on.
Press
0HQX
to refine other display parameters. See 3.5, Using Inputs and
Channels if you want to work with other source inputs or defined channels.
Although VistaGRAPHX 10K 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 10K in a fixed
and permanent installation, this subsection will help you to better understand
what may be done to enhance display performance.
For any new installation, you will likely have to safely lift or hoist the projector
into place. Keep in mind the following guidelines for safety.
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The projector includes integral wrap-around aluminum handles for convenient
grasping. While these handles are adequate for brief hand transport, such as
lifting or carrying over short distances by 2 or more people, the end handles are
not intended to support the entire weight of the projector for extended periods of
time. In particular, do not hoist or suspend the projector from these end handles
or use them in an installation (see Figure 2-1).
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You can use appropriate nylon webbed strapping and hoisting/rigging equipment
to lift the projector and/or install it as a permanently suspended installation.
Make sure to attach the straps inside
the side handles only, as shown in
Figure 2-2 — do not use the end or
side handles. Hoist only one projector
at a time.
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Note that the projector also includes
tapped bolt holes in each corner that
accept screw-in eye bolts (provided).
Attach the 4 eye bolts and rig them
with safety cabling whenever you are
hoisting the projector into place or
suspending it permanently (Figure 2-3).
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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 2-4 and Figure 2-5 (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, although this difference may be negligible
given the ultra high brightness output from this projector.
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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 10K lenses are designed primarily for use with flat screens.
However, the projector 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.

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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 6 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 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. 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 10K is certainly well suited for
locations where ambient lighting is less than optimum for projection, but there
are still many simple things you can do to optimize your installation.
Visiting a movie theater can give you an idea of what makes an ideal 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 incandescent
spot lighting or parabolic reflectors ("egg crates") to direct light down to the
floor. Light dimmers or rheostats allow further control.
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 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 slightly 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, keep reflective surfaces 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:
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◊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.
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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.
Throw distance is roughly equal to the horizontal width of the screen multiplied
by the type of lens you are using. For example, if you are using a 3.9:1 lens,
throw distance should be approximately 3.9 [the screen width. Once you know
your screen size, you can estimate how far away the projector should be, as
shown in Table Chapter 2 -1. ,03257$17=For exact placement in an
installation, always refer to the throw distance formula and/or graph for your
lens as listed in Appendix E.
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NOTES: 1)While throw distance is measured perpendicular to the screen and
projector, this measurement is not necessarily parallel to the floor — both
projector and screen may be inclined together. 2) It is good practice to simulate
the setup with the projector fully warmed-up to determine the precise throw
distance required. 3) Always use the throw distance information from Appendix E.
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) and that image focus and brightness both remain optimized.
Vertical position is offset—that is, the image can be moved—by using the
/HQV
key. This displays the Lens menu, where both horizontal and vertical offset can
be adjusted with slidebars. Note that the range of adjustment depends on the lens
type you are using. See Table Chapter 2 -2 for the number of pixels by which
you can move an image using a specific lens. Refer to Figure 2-9 to see more
clearly how the pixel offset ranges affect the placement of your image in relation
to the vertical position of the projector.
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NOTES: 1) If you cannot raise or lower the image enough for your installation,
or if the image becomes keystoned or exhibits uneven brightness, the projector is
probably 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 offset can limit the range of vertical offset.
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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 maycause the
projector and cart combination to overturn.
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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 VistaGRAPHX 10K can be rotated and mounted at any vertical angle-i.e.,
you can tilt the projector forwards or backwards as much as desired for your
application. The side-to-side tilt, however must not exceed 15° (see Figure 2-10).
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 an Electrohome ceiling mount fixture if the projector is to be
inverted and suspended. For more information, contact your dealer.
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.
The front panel of the projector has two standard input panels to which you may
connect a variety of sources. The upper right panel (Input 1) accepts an RGB
input from an external RGB source with audio follow-through. The lower left
panel (if video decoder module is installed) accepts composite video (Input 3) or
S-video (Input 4) and audio from devices such as video tape or disk players.
There are also several optional interfaces available for connecting other sources
(Input 2). Such an option installs in the upper left panel. See Figure 2-12.
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The RGB input (Input 1) includes BNC type connectors for connection to a
variety of RGB sources. Such sources include VGA, SVGA, XGA, Mac,
PowerMac, DEC, Sun, SGI and others. VistaGRAPHX 10K supports multiple sync
types: sync-on-green for data, composite, and separate H & V.
NOTE: Depending on the source, you may need a custom adapter cable that has
BNC connectors at the projector end and different type of connector at the other
(such as a 15-pin "D" connector for computer sources). Contact your dealer.
Connect the sync BNC input(s) first. 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, only the red, green, and blue connections are required. If the
source provides a composite sync output, connect it to the H/C SYNC input. If
the source provides separate horizontal and vertical sync outputs, connect
horizontal sync to the H/C SYNC input and connect vertical sync to the V SYNC
input. See Figure 2-13.
Connect component video as follows:
Yto "Green"
U(also called B-minus-Y) to "Blue"
V(also called R-minus-Y) to "Red"
NOTES: 1) VistaGRAPHX 10K does not automatically recognize a YUV signal.
When using YUV video, you must specify this signal type within the Image
Settings menu so that the projector can distinguish between this signal and other
RGB sources. See 3.6, Adjusting the Image. 2) For best performance, do not
connect HDTV signals to Input 1 — this type of source requires the HDTV Input
Module (available as an option).
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To control audio levels in an audio/visual system, connect pre-amplified (line
level) audio inputs to the left and right channel audio inputs on the Input 1 panel.
Then connect the audio outputs to external audio amplification equipment for
sound output. All audio connection cables require standard RCA type phono
plugs.
The Composite/S-Video input provides simultaneous connection of both a
composite video source (Input 3) and an S-Video source (Input 4).
If connecting a S-Video source, use the 4-pin mini DIN connector or the Y and C
BNC connectors (luminance and chrominance) — do not use both as input. If
connecting a composite video source, use the Composite BNC connector or the
RCA phono jack — do not use both as input. See Figure 2-14.
NOTE: If using the loop-through feature for composite or S-Video input, see
"Video Termination" in 3.7, Adjusting and Checking System Parameters.
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If you want to use an extra video source in addition to the video source(s)
connected at Inputs 3 and 4, connect either a Composite or S-Video source to
Input 1 as shown in Figure 2-15.
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Electrohome Optional Input Modules allow you to increase the total number of
inputs and to accommodate other signal types. These modules may be installed
in the upper left section of the control panel on the front of the VistaGRAPHX 10K
(called Input 2). They are:
•RGB Input Module
•RGB Loop Thru Module
•Composite/S-Video Module
•HDTV Input Module
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•PC Analog Input Module
•Vista Digital Input Module (available Fall ’98)
NOTES: 1) Installation of optional interfaces must be done by qualified service
personnel only — contact your dealer. 2) See Appendix F, Optional Input
Modules for a brief description of each interface.
Plug the twist-locking three-prong end of the integral AC line cord (30 amp, with
L6-30 plug) in a matching grounded AC outlet. Twist to secure. Input voltage to
the projector must be between 220 and 240 VAC, 50 or 60 Hz. The power source
must be capable of supplying 2800 watts (15 amps) of power to the projector.
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#Caution: Once the projector is turned off, the lamp cooling fans will
continue to run for approximately five minutes to ensure that the projector and
lamp have sufficiently cooled, at which point the fans will automatically shut off.
To avoid thermal stress to lamp, never unplug the line cord while the lamp
cooling fans are running. Do not unplug the projector or use the circuit breaker
switch in order to power down.
VistaGRAPHX 10K is set up at the factory for use in a front screen, floor mount
orientation. If the installation is ceiling mount or rear screen, you may notice that
displayed images are 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). See
Section 3, Operation for
further information.
In the Preferences menu,
highlight and select the
"Image Orientation" pull-
down list. From a front
screen floor mount
installation, select from Rear,
Inverted Rear, Front or
Inverted Front according to
your intended installation:
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