Electrohome Marquee Ultra Series User manual

I
AMRCWEEo~kES User’s Manual
Table of Contents
Section Contents Psge
1Introduction 1.1 The Projector....................................................................................................1-1
1.2 Purchaser’sRecordandServicing....................................................................l.2
2Installation &
Setup
3Operation
4Maintenance
5Specifications
6Appendices
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
4.1
4.2
4.3
5.1
A
B
c
D
E
F
G
F
QuickSetup.......................................................................................................2.l
InstallationConsiderations................................................................................2.2
HardwareSetup.................................................................................................2-7
Mounting.........................................................................................................2-11
PowerConnection...........................................................................................2-14
SourceConnections........................................................................................2.l4
SerialPort Connections...................................................................................2.l5
OpticalAlignment...........................................................................................2-16
SourceSetup...................................................................................................2.24
MemorySetup.................................................................................................2.26
ImageShifterSemp.........................................................................................2.32
ACONSemp ...................................................................................................2.37
Overview...........................................................................................................3-1
ProjectorBasics................................................................................................3.l
SourceSelection.............................................................................................3.lo
SetupMemories..............................................................................................3.l3
DisplayAdjustments.......................................................................................3.l5
ConvergenceRegis&ation...............................................................................3.25
UtilityFea~es ................................................................................................3.3l
Multiple.projectorFunctions..........................................................................3.47
WarningsandGuidelines..................................................................................4.l
Cleaning............................................................................................................4-2
Troubleshooting................................................................................................4.3
Specifications....................................................................................................5.l
Glossary...........................................................................................................A-1
Menu Tree .......................................................................................................B.l
ASR/ASILogicDiagrams................................................................................c.l
CommunicationCables....................................................................................D.l
KeypadReference............................................................................................E-1
ThrowDistanceTables....................................................................................F-1
Lenses..............................................................................................................G.l
Intetiaces..........................................................................................................H.l
NOTE: Due to constantresearch, the information in this manual is subjectto changewithout notice
54-017094-01P(09/98)—SoftwareVersion4.2 ...
Ill

I

I
Section 1
Introduction
1.1 The Projector The Electrohome Marquee Ultra Series projectors are ultra high resolution
graphics projectors compatible with virtually all input sources. Their superior
performance and high quality projected images place them well above other
projection systems in their class. Features of the Marquee Ultra Series
include:
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•1
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automatic lock to inputs between 14 kHz and 152 kHz
projected display size to 25 feet diagonal
liquid coupled (8500LC/9500LC models) or air coupled (8500) lens design
high brightness projection: from 225-240 ANSI lumens, depending on
model
high video bandwidth – 120 Mhz (-3dB)
multi-use full function keypad
intuitive menu driven, multi-language interface with on-line help
external computer control capability
superior geometry control, contrast, astigmatism and color performance
Contrast Modulation
ASR and AS1 to reduce the need for manual display adjustments
Image Shifter Module to help lengthen CRT life (standard on 9500LC)
optional ACON II automatic convergence feature
Functional ●The projector accepts data/graphics and video input signals from avariety of
Description sources for projection onto flat, curved, or rear projection screens. System
inputs are processed to provide separate red, green, and blue image
components for projection through the projector’s three front lenses. The three
primary color components converge on the projection screen to provide ahigh
quality display output.
Sophisticated processor-based logic and control circuitry provide many of the
automatic features available on the Marquee Ultra. This circuitry interfaces
with the keypad to provide projector control by the user, such as:
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turning the projector on or off
switching input sources
adjusting all display settings such as contrast, brightness, and size
correcting for display effects and input noise
displaying projector operating status screens and on-line help
controlling projector operating settings
Should projector servicing be required, service personnel can
make service adjustments and alignments. In some cases the use the keypad to
projector may be
1-1

INTRODUCTION
Construction ●
Expandability ●
1.2 Purchaser’s
Record and
Servicing
serviced without accessing the projector’s internal circuitry.
Projector settings, usually different for different sources, are stored in memory
for each individual source. These settings me retained until changed by the
user, even if power is removed from the projector.
The projector body is comprised of asturdy metal chassis, metal top covers,
and durable plastic side covers. The front top cover can be temporarily
removed to access the keypad and align the lenses. The rear top cover and
rear panel are removable for servicing and projector upgrading.
Marquee Ultra Series projectors can be expanded or upgraded to include
additional features, accessories, and input options; these include avariety of
quick plug-in interface modules to suit the input devices you are using, a
signal switcher, avideo decoder, aceiling mount, and floor mount accessories.
For more information or if you need assistance for upgrading your projector,
contact your dealer or Electrohome.
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 filly 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 aproblem with your projector or require assistance, contact the
authorized Electrohome dealer from which the projector was purchased. Fill
out the information below for your records.
Purchaser’s Record
Dealer:
Dealer Phone Number:
Projector Serial Number:
Purchase Date:
Note: Display projector seriaW by pressing El at presentation level.
Electrohome Service Locations
Electrohome Limited Electrohome USA (1989), Inc.
809 Wellington Street North
Kitchener, Ontario 9216 B@ court
Canada N2G 4J6 Rancho Cucamonga
Telephone [phone] California 91730-5835
Toll-free in North America Telephone: [phone]
1-800-265-2171 Toll-free: 1-800-333-3816
Fax: [phone] Fax: [phone]
Electrohome Europe Ltd.
ImagePoint
58 Suttons Park Avenue
Reading, Berkshire
UK RG6 1Az
Tel: [phone]
Fax [phone]
Electrohome Asia PTE
Tannery Lane
+?03-05 Tannery House
Singapore 347790
Telephone [phone]
Fax: [phone]
1-2
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Section 2
Installation &Setup
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 in section 2.1. For acomplete
setup, skip section 2.1 and follow the instructions and guides covered in the remaining subsections.
2.1 Quick Setup
Step 1●
Step 2●
Step 3●
Step 4●
Step 5●
Step 6●
Step 7●
Follow these 7steps for quick set up of the projector:
Position the Projector
To perform aquick setup, the projector must be positioned so that the throw
distance is the same as that used during the most recent optical alignment;
otherwise adetailed setup is required .The throw distance is the distance
between the center lens on the projector and the center of the projection
screen. See Appendix Fand Appendix Gfor more information. Note: If an
optical lens alignment is required, refer to section 2.8, Optical Alignment.
Connect the Power Cord
Plug the AC line cord into the line input unit on the lower front panel of the
projector. Plug the three prong end of the line cord in agrounded AC outlet.
Notes: 1) Input voltage must be between 90 VAC and 264 VAC. 2) Ensure the
line cord is the proper type for the AC receptacle.
Connect aSource
Connect asource to the projector’s built-in RGB input (slot 1) or, for the
9500LC Ultra, the Image Shifter RGB input (slot 2). Ensure the source is on
and properly connected.
Access the Keypad
Remove the projector’s front top cover to access the keypad. See page 3-2.
Turn the Projector On
Press -on the keypad to turn the projector on. Hold down the power key
for about one second. Note: If the keypad has been configured for IR remote
operation, point it towards the screen or the front of the projector.
Select the Input
Press [=1 !Zl~to select the source connected to the built-in RGB input or,
if a9500LC Ultra, press [~1 IF] @to select the source connected to the
Image Shifter input.
Adjust the Display
Press [~1 [~1to select the Guided Source Setup tutorial.
2-1
.... I“-””

INSTALLATION &
2.2 Installation
SETUP
Careful consideration should be given as to how and where the projection
Considerations system is installed. Although the projector offers high performance, the final
display quality could be compromised if the projector is not installed properly.
This subsection discusses the considerations you should make before
proceeding with afinal installation. These considerations include the
installation type (floor, ceiling, rear), screen size and type, room lighting, and
ventilation.
Installation Type ●Choose the installation type which suits your needs: front or rear screen, floor
mount or ceiling mount.
Front Screen, Floor Mount Installation
ADVANTAGES CONSIDERATIONS
●Easy to set-up. ●Shares floor space with audience.
●Can be moved or changed quickly. ●May be accidentally moved, necessitating re-
●Easy to access projector. alignment.
Front Screen, Ceiling Mount Installation
ADVANTAGES CONSIDERATIONS
●Does not take up audience space. ●Installation is more permanent.
●The projector is less noticeable. ●It is more difficult to physically access the
●The projector cannot be accidentally moved. projector.
Rear Screen, Floor Mount Installation
ADVANTAGES CONSIDERATIONS
●Projector is completely hidden from the ●Requires separate room.
audience.
●Easy to access projector.
●Usually good ambient light rejection.
Rear Screen, Ceiling Mount Installation
ADVANTAGES CONSIDERATIONS
●Projector is completely hidden from the ●Requires separate room.
audience. ●Installation cost is usually higher.
●Usually good ambient light rejection.
Rear Screen, Floor Mount With Mirror
ADVANTAGES CONSIDERATIONS -
●Projector is completely hidden. ●Requires separate room.
●Usually good ambient light rejection. ●Installation cost is usually higher.
●Less space is required behind the screen
than other rear screen installations.
2-2
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INSTALLATION &SETUP
Screen Type ●Screen type is avery important factor when designing aprojection system.
Inexperienced users or installers should always consult their dealer when
deciding on screen type. The following guidelines may be helpful to
understand the differences between screen types.
Front Screen Installations
There are two basic screen types: flat and curved. The choice between aflat
screen versus acurved screen is dependant on audience viewing angle and
screen gain. There is always atrade-off between viewing angle and gain.
Viewing angles for both screen types are illustrated in Figures 2-1 and 2-2.
Flat screens offer again of about 1with aviewing 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.
Figure 2-1. Audience Coverage with Flat Screen
Figure 2-2. Audience Coverage with Curved Screen
Curved screens have gains larger than 1and 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 aconical volume or “viewing cone”. Audiences within
the viewing cone see abrighter image than that from an equal area on aflat
screen. Audiences outside the viewing cone see adimmer image.
2-3
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IINSTALLATION &SETUP
To summarize, curved screens are better suited for brightly lit rooms where the
audience is situated within the viewing cone. Flat screens are best suited when
awide viewing angle is required and ambient room lighting (near the screen)
is low.
Note: Screen Gain is defined in Appendix A, Glossaty.
Rear Screen Installations
There are two basic types of rear screens: diffised and optical. Adiffused
screen has asurface which spreads the light striking it. Purely diffused screens
have again of less than 1. The main advantage of the diffused screen is its
wide viewing angle, similar to that of aflat 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. Aviewing
cone, similar to that of acurved 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 awide viewing angle is required but there is low ambient room lighting.
Screen Size and ●Screen size and throw distance are interrelated. See Appendices Fand G. As
Throw Distance screen size increases, the distance between the projector and the screen also
increases. During projection room design, make sure that the room can
accommodate the required position of the projector for the screen size you
need.
Screen Size
Screen sizes vary according to model and lens type. See Appendices Fand G.
Choose ascreen size which is appropriate for your application. If the projector
will be used to display text information it is important that the image size
allows the audience to clearly resolve all text. The eye usually sees aletter
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 not be legible at adistance even
though it is projected sharply and clearly on the screen.
To fill ascreen with an image, the aspect ratio of the screen must be equal to
the aspect ratio of the image. The aspect ratio of an image is the ratio of its
width to its height. Standard video from aVCR has a4:3 or 1.33:1 aspect
ratio. For example, to display aVCR output with a4:3 aspect ratio onto a10
foot (3m) high screen, the width of the screen must be at least 13.3 feet (4m).
Note: Screen size is ofien specified as diagonal size. Screensspecified by,
diagonal size have aspect ratios of 4:3. Screens with other aspect ratios are
not typically specij7ed by diagonal size.
2-4
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I—.
Throw Distance
INSTALLATION &SETUP
The throw distance (projector-to-screen distance) must be determined for every
new installation. Throw distance, the distance between the projector’s center
lens and the center of the screen, is based on screen size. As screen size
increases, the distance between the projector and the screen increases. Make
sure that the room can accommodate the required position of the projector for
the chosen screen size.
Once your screen size is known you can determine the required throw distance
for your projector model and lens by using the formulas in Appendix Gand
tables in Appendix F.
Notes: 1) Calculated values are for reference only. It is good practice to
simulate the setup to determine the necessary throw distance. 2) Display size is
aflected by input signal characteristics. Once the projector is set, use the Size
function to fine tune display size.
Throw distance and projection angle: Keep in mind that the ability to properly
focus all areas of the image is limited if asignificantly tilted projector is too
close to the screen.
Lighting ●Proper lighting is another important factor when designing aprojection room.
Visiting amovie theatre can give you an idea of what makes agood projection
environment. All walls, floors and furnishings are dull colored and non-
reflectively finished. Every effort should be made to create the best
environment for your system.
When designing aprojection room, try to avoid white, reflective ceilings and
non-directional lighting such as fluorescent lights. The white ceiling spreads
the light which makes the room appear brighter. You want to keep the
lighting and reflections to aminimum. If it is not possible to keep fluorescent
lights off, consider using parabolic reflectors (“egg crates”) to direct light down
to the floor and away from the ceiling. Spot lighting (incandescent) is abetter
way to obtain illumination. Installing light dimmers or rheostats allows you to
control your lighting environment.
Outside windows are undesirable in any projection environment. Asmall
crack between curtains on asunny day can severely wash-out an image. Make
sure that curtains are opaque and fit snugly. Some curtains can provide up to
100 percent blockage of outside light. Pay close attention to the curtain
material facing inside the room. It should have amatte finish.
Even with no external light at all, reflections from room surfaces can degrade
the image. Light from the screen should be absorbed by surfaces so that it
will not be reflected back to the screen. Keep reflective surfaces to a
minimum.
2-5

I
INSTALLATION &SETUP
Other
Considerations
2-6
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 has allowed 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.
r
window
Figure 2-3. Poor Screen Placement
a
il
T
Q
o
0
-!
window
Figure 2-4. Good Screen Placement
●Here are some other considerations and tips which can help you improve the
design of your projection system.
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Proper ventilation is important. 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. Keep 35 mm slide
projectors at least 2feet away from the projector. Even if both are not used
at the same time, the magnetic fields created by the slide projector can
cause permanent magnetization of the projector.
,----- ..

IINSTALLATION &SETUP
IYFor rear screen applications, less space is required if amirror is used to fold
the optical path.
❑Choose the right screen size for your application:
.As screen size increases, magnification increases which reduces
brightness. This reduces the contrast ratio which affects legibility. Sharp
defined edges become soft and fuzzy. Consider whether screen size is
more important.
.Installing alarge screen in asmall room is similar to watching television
close up; too large ascreen can overpower aroom. Agood 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 your projection room, consider positioning the projector
and screen in amanner 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.
2.3 Hardware
Setup
Keypad
Conversion ●
SQUARE ROOMS
Corner placement of screen
yields best audience coverage.
RECTANGULAR ROOMS
Screen placement along short
wall yields best audience coverage. !
Figure 2-5. Screen Locations for Maximum Audience Coverage
This section explains: how to convert the keypad from abuilt-in keypad to a
remote keypad, how to change keypad protocol and backlit settings, and how
to determine if reverse scan setup is required.
The projector includes amulti-use full-function keypad which may be
configured for use as abuilt-in, IR remote, or wired remote keypad. The
keypad is configured at the factory for built-in use. It is located below the
front top cover. You can use the keypad as it is or re-configure it for remote
operation. You can also “hard wire” the keypad to be aprotocol Aor
protocol Bkeypad (see section 3.7, Utility Features for information about
keypad protocols).
2-7
....... . . .- ..—----_...—.------

INSTALLATION &SETUP
Follow the steps below to convert the keypad to aremote keypad and change
its protocol setting.
Step 1
Unplug the projector then lift the
front top cover to access the built-
in keypad. To lift the cover, grasp
it above the red and blue lenses
then lift it until the keypad is
exposed. The keypad is mounted
to asecuring bracket located above
the lens assemblies. Loosen the
two bracket wing nuts then move
the keypad away from the bracket.
See Figure 2-6.
Step 2
Locate the battery compartment at
the back side of the keypad.
Squeeze the latch to open the door.
See Figure 2-7. Figure 2-6. Built-in Keypad Access
Battery
Compartment Cable
Connector
Figure 2-7. Battery Compartment
If converting the keypad to an IR remote, unplug the cable connector. Locate
the jumper wires next to the cable connector location. See Figure 2-8. The
jumper wires control the keypad’s operating settings.
~PROTOCOLA
‘i I
.a<.
~PROTOCQL B
321
JPZ ~(ALWAYS)
I,— .. —-, ,,.”. i
F-E&k-i
I JP4 I-”a7tI
I1~ IR REMOTE KEYPAD IL
Figure 2-8. Jwnper S@@S
2-8
\

IINSTALLATION
Keypad Operating >
Settings
JP1
&SETUP
This jumper setting is important if the keypad is configured for remote
operation. There are two keypad protocols: Aand B. These protocols are
available to allow two projectors in the same room to be independently
controlled by separate remote keypads. The protocol setting of the keypad
must match that set in the projector’s Keypad Options menu ([~ IZIEl ). For
more information about keypad protocols, refer to the Remote Control Options
entry in section 3.7, Utility Features.
JP2
This jumper must always be set between pins 1and 2as shown; otherwise, the
projector will not respond correctly to keypad commands.
JP3
This jumper must always be set between pins 1and 2as shown; otherwise, the
backlit feature will be disabled and the projector will not respond correctly to
keypad commands.
JP4
The JP4 jumper setting sets the keypad type. If you are converting the keypad
to an IR remote, move the JP4 jumper from between pins 2and 3to between
pins 1and 2.
Step 3
For an IR remote keypad, place four AA size, 1.5V alkaline batteries in the
compartment ensuring that the +/- orientation of each battery is correct.
Position the compartment door into place.
For awired remote keypad, an optional accessory cable (#03-001106-O2P) is
required. Plug the cable into the cable connector then position the door into
place. Plug the cable jack into the remote jack input on the projector.
WARNING: DO NOT INSTALL BAl_fERIES IN THE KEYPAD IF ABUILT-IN
OR WIRED REMOTE CABLE 1S AITACHED TO IT. THIS MAY CAUSE THE
BAITERIES TO EXPLOI)E.
The keypad includes its own memory to store keypad operating settings. With
afew simple keystrokes you can over-ride the “hard wire” protocol setting
(explained earlier) and enable or disable the backlit feature. Keypad battery
life is increased if the backlit feature is disabled. The new operating settings
are stored in the keypad until the batteries are replaced (IR remote keypad) or
the keypad connection cable is unplugged (wired or built-in keypad).
2-9
.-

IHWTALLATION &SETUP
If the keypad is configured for IR remote operation, make sure the batteries are
installed. If it is configured for built-in or wired remote operation, make sure
its extension cable is properly connected to the projector. Perform the
following keystroke sequences to change its operating settings:
“To toggle the keypad’s protocol setting (A or B),
press W[~1 1~1 =U.
sTo toggle the backlit feature (enable or disable),
press @[-l [~ IZ@El~.
“To return all configuration settings to the jumper settings,
press ~[~1 1~1 =(Z1.
Note: The projector will not respond to keypad commands if you press
Qmmm@. If pressed accidentally, press @m~=❑to
clear all keystroke settings.
Reverse Scan ●If the projector is not installed in afront screen, floor mount configuration,
reverse scan setup may be required. Reverse scan setup must be performed by
aqualified Electrohome service technician. Refer to Table 2-2 to determine if
reverse scan setup is required. Contact your dealer for assistance.
Table 2-2. Operating Configurations
OPERATINGCONFIGURATION HORIZONTAL VERTICAL
SCAN SCAN
Front Screen,
~~ Floor Mount NORMAL NORMAL
(default configuration)
Front Screen,
~w Ceiling Mount REVERSED REVERSED
Rear Screen,
kh Floor Mount REVERSED NORMAL
Rear Screen,
~v Ceiling Mount NORMAL REVERSED
RearScreen,
I%P Floor Mount, NORMAL NORMAL
With Mirror
2-10
-.......

IINSTALLATION &SETUP
2.4 Mounting The projector should be mounted after the system design has been established
and reverse scan setup (if required) is complete.
Front Screen ●Floor Mount
Installations Mount the projector on asecured table or cart. Position the projector at the
chosen room location with the projector pointing towards the center of the
projection screen. The angle of projection, combined with the tilt angle of the
screen should direct the reflected image towards the center of the audience. It
is recommended that the difference between the projection angle and the
screen tilt angle (within acommon reference) be less than 15°. Refer to
Figure 2-9.
Projector lilt -Screen TM= &
8S15”(recommended) \
Screen
lilt
Figure 2-9. Floor Mount Installation
You can adjust projection angle and level by adjusting the height of the
projector legs. See Figure 2-10.
\0
---+ Figure 2-10. Leg Adjustment
-r ,.-..—,. .
2-11

IINSTALLATION &SETUP
Ceiling Mount
Mounting the projector to the ceiling requires the use of aprojector ceiling
mount fixture. The fixture is shipped from the factory in kit form (with
assembly instructions) for assembly and installation by the dealer/installer. For
more information, contact your dealer or Electrohome.
Position the projector so that it is pointing toward the center of the projection
screen. The angle of projection combined with the tilt angle of the screen
should direct the reflected image towards the center of the audience. It is
recommended that the difference between the projection angle and the screen
tilt angle (within acommon reference) be less than 15°. See to Figure 2-11.
.... ----
,:. -_-.l
--tsL_
-- Projector Tlt
8~~_
Eye Level 8
)
I.&-. Projector ~lt -Screen lilt= 9
051 5“(recommended) IScreen
Tlt
Figure 2-11. Ceiling Mount Installation
Instructions for adjusting projection angle are provided with the fixture kit.
For more information, contact your dealer or Electrohome.
Rear Screen ●When installing arear screen system, the vertical positioning of the projector
Installations is dependant on the type of rear screen being used. There are two basic types
of rear screens: optical and difi%sed.
Optical Rear Screen Systems
If the system includes an optical rear screen, mount the projector along the
center axis of the screen as shown in Figure 2-12.
Projection Angle =O“ 7
Figure 2-12. Optical Rear Screen Installation
2-12
,., . . ....

INSTALLATION &SETUP
Diffused Rear Screen Systems
If the system includes adiffised rear screen, floor mount or ceiling mount the
projector so that the image is directed to the center of the audience. Projection
tilt should be less than 15°. See Figure 2-13.
rz.-.---
-. .....-
Ia $.
- - A_-.-.-.: -
Projector Tilt
%
~e 0
Level Projectur Tit -Saeen lilt =0
8s15“ (recommended)
Figure 2-13. Diffused Rear Screen Installation
In situations where the space behind the projector is limited, amirror may be
used to fold the optical path as illustrated in Figure 2-14. If adiffused screen
is used, the projection angle 0should be less than 15°. If an optical screen is
used, the optical path between the mirror and the screen should be perpen-
dicular to the screen. Much attention must be given to the positioning of the
projector and the mirror. This can be quite difficult for installers unfamiliar
with this type of installation. It is recommended that your dealer or an
experienced installer perform the installation.
Note: When using amirror as shown in Figure 2-14, the calculated throw
distance (D) is the summation of D1 and D2.
Projector to Screen Distance (D)= (DI +D2) Mirror llt =~+ 1/2 Projection lilt
D1
Minimum Mirror Size = ~ xScreen Siz6
8<15 (recommended)
\
Surface Mirror
t
\
~Projector Tilt
Projector Tlt -~
2
Figure 2-14. Folded Optics
2-13

I
INSTALLATION &SETUP
2.5 Power
Connection
2.6 Source
Connections external RGB sources and audio equipment. This input interface is shown in
Figure 2-16. The built-in interface is not removable.
To apply power to the projector,
plug the AC line cord into the
line input socket located at the
front panel of the projector. Plug
the three prong end of the line
cord in agrounded AC outlet.
Input voltage to the projector
must be between 90 and 264 —.
—— =
—— —
VAC, 50 or 60 Hz. The power
source must supply 650 watts of 90-264 VAC
power to the projector.
Figure 2-15. Power Connection
The projector includes abuilt-in RGB input interface for connection of
(l #,h
lull
~“*,~
..“Slots”3to 6when
..”= +i23 !&S-e&%” “““6600-0$’ optional decoder
*is insta//ed.
uTt’-
Slot 2slot 1
Figure 2-16. Projector Input Slots
Optional interface modules are available to accommodate other signal types.
These include aComposite/S-Video Module, an HDTV Input Module, and a
PC Analog Input Module. Any one of these can be installed in slot 2. A
Marquee Multi-Standard Decoder may be installed to add four additiomd
inputs to the system (“slots” 3to 6). To further increase the number of inputs,
asignal switcher may be connected to the RGB interface in slot 1to add 8
more sources to the system (9 switcher inputs replace one RGB input). Other
switchers may be connected to the first switcher for more inputs. Brief
descriptions of the above mentioned optional modules are given in Appendix
H, Interjizces. For additional details, contact your dealer and Electrohome.
2-14

IINSTALLATION &SETUP
The two RGB interfaces provided allow connection of an RGB source having
one of the following sync types: sync on green, composite sync, or separate H
&Vsync. To comect asource, connect the red, green, and blue outputs to
the RED, GREEN, and BLUE inputs on the interface. If the souce uses sync
on green, no additional cables are required. If the source provides acomposite
sync output, connect it to the HOIUCOMP input. If the source provides
separate horizontal and vertical sync outputs, connect the horizontal sync
signal to the HORfCOMP input, and connect the vertical sync input to the
VERT inuut. Interconnection cables must be terminated with BNC connectors.
Figure 2-~7 show source connections for the built-in interface.
Ill [t! t
=!& @65
‘@@’
‘@@’”
IN —AlmO-OuT
-BNC
connectors
RGR and ~ync
wIrom
~urce Q
Lefi and Right Audio Inputs (preamplifier) *J
Left and Right Audio Outputs to Amplifier
phono
plugs
Figure 2-17. Built-in RGB Interface Connections
To control audio levels in an audio/visual system, pre-amplified (line level)
audio inputs are connected to the left and right channel audio inputs on the
interfaces. Audio outputs from the built-in interface are then connected to
external audio amplification equipment for sound output. All audio connection
cables require standard RCA type phono plugs.
2.7 Serial Port Serial port connections are required when:
Connections ❑using a Marquee Signal switcher with the projector or
❑the projector is to be controlled by acomputer/controller.
The projector’s serial ports are located on the back panel. See Figure 2-18.
uI
[
\
Figure 2-18. Serial Port Connections
2-15
.. ..

INSTALLATION
2.8 Optical
Alignment
&SETUP
If using the projector with aMarquee signal switcher, connect an RS-232
serial communication cable between the switcher and the projector serial port
labelled “SWITCHER”. If the projector is to be controlled by acomputer or
controller which has an RS-232 serial port, connect an RS-232 serial cable
between the computer and the projector serial port labelled “IN”. After the
connection is made, set the serial port baud rate as described in the Projector
Setup entry in section 3.7, Utilities.
Notes: 1) All serial connections require a 9 pin Dconnector at the projector
end. Refer to Appendix Dfor cable wiring requirements. 2) For
computerlcontroiler control, PC sojiware is required. 3) The RS-232 serial
port labelled “OUT” is provided for projector networking applications.
Optical alignment is required when the throw distance changes or the projector
cannot be focused using the focus controls. The projector is optically aligned
at the factory at afixed screen size and afixed projector-to-screen distance.
See Appendices Fand Gfor the specific details needed for your projector
model and lens. If the throw distance has changed since the last setup, proceed
as follows:
Notes: 1) The projector must be warmed up for at least 45 minutes prior to
peq%orming optical alignment. 2) Optical alignment is both amechanical and
electrical adjustment. Electrical adjustments are stored in the current setup
memory. After alignment is complete, setup memories which were previously
set up (if any) must be set up again. Memory setup is explained in
section 2.10. 3) Factory alignment is pe~ormed using the internal crosshatch
with a61.8 kHz signal applied.
It is recommended that optical alignment be performed using the projector’s
Guided Mechanical Setup tutorial. This tutorial displays step-by-step
instructions during the alignment. The instructions in this section require use
of the Guided Me~hanical_Setup tutorial.
To access and use the Guided ==
Mechanical Setup tutorial, turn on the
projector ( - ) then press ~at 1. Guided Source Setup
presentation level. The Help menu is 2. Guided Mechanical Setup
displayed. Next press Hto select 3. Source Selection Guide
Guided Mechanical Setup. The first 4. Keypad Guide
5. -
page of the guide will be displayed 6. Using Help
on the projection screen. When using
the guide, press ~to display the For all menus:
Press a number or use A~
next page, press Wto display the then <ENTER> to select item.
previous page. When complete, press EXZl
to end Help. ~
Ste9 1bIf you have not already done so,
.- calculate the throw distance and set the projector position as explained in
section 2.4, Mounting. Turn power off before moving the projector.
2-16
.