Digital Projection POWER 4dv User Manual
The POWER display range of
SUPER-HIGH-BRIGHTNESS DIGITAL VIDEO PROJECTORS
POWER 2v, POWER 4dv and POWER 5dv
USER MANUAL
Revision E - 28/01/98
Directives covered by this Declaration
89/336/EEC Electromagnetic Compatibility Directive, amended by 92/31/EEC & 93/68/EEC
73/23/EEC Low Voltage Equipment Directive, amended by 93/68/EEC
Products covered by this Directive
Large Screen Projector types POWER 2v, POWER 4dv and POWER 5dv
Basis on which Conformity is being declared
The products identified above comply with the protection requirements of the above EU
directives, and the manufacturer has applied the following standards:-
BS EN 50081-1: 1992 EMC Generic Emission Standard for Residential, Commercial and
Light Industrial Equipment.
BS EN 50082-1: 1992 EMC Generic Immunity Standard for Residential, Commercial and
Light Industrial Equipment.
BS EN 55022: 1995 - Limits and Methods of Measurements of Radio Disturbance
Characteristics Information Technology Equipment.
BS EN 60950: 1992 - Specification for Safety of Information Technology Equipment, including Electrical Business Equipment.
The technical documentation required to demonstrate that the products meet the requirements
of the Low Voltage Directive has been compiled by the signatory below and is available for
inspection by the relevant enforcement authorities. The CE mark was first applied in 1997.
Signed:
Authority: D.J. Quinn, Product Development Director
Date: 29th April 1997
Attention!
The attention of the specifier, purchaser, installer, or user is drawn to special measures and
limitations to use which must be observed when these products are taken into service to
maintain compliance with the above directives. Details of these special measures are
available on request, and are also contained in the product manuals.
Declaration of Conformity
LBV00018; Revision E - 28/01/98
From time to time revisions will be issued to this manual. To maintain a correct and
up to date copy of the manual it is important that the instructions given in revision
notices are carried out.
The person carrying out the revision should complete the table below.
Revision No Revision Details Date Revised
Revision Record
LBV00018; Revision E - 28/01/98
Please read the following before proceeding
The Digital Projection POWER displays are Super-High-Brightness Video Projectors
capable of producing images of superb brightness and clarity with the minimum of
set-up time and operating support. The User Interface via the On Screen Display, is
designed to allow the novice user rapid access to basic projector operation while
providing the expert with the ability to tailor the performance to his exact
requirements.
An Outline of Contents is given overleaf which provides an overview of the five
sections, A to E, in this manual and lists all the major topics covered along with
their location. This outline allows the user to direct themselves to the appropriate
section of this manual where a detailed contents page will provide the exact location
of the topic required. Section identifiers are also provided on the outside edge of the
pages to allow the quick location of individual sections.
The user is strongly recommended to read Section A: Overview before unpacking
or switching on the projector, paying particular attention to the safety warnings on
pages A—3 and A—4.
Disclaimer Digital Projection makes a sincere effort to ensure accuracy and quality of it's published materials;
however, no warranty, expressed or implied, is provided. Digital Projection disclaims any direct or indirect damages
resulting from the use of any information in this manual.
Introduction
Introduction
INTRODUCTION
LBV00018; Revision E - 28/01/98
Introduction
INTRODUCTION
LBV00018; Revision E - 28/01/98
Digital Projection Limited,
Greenside Way, Middleton, Manchester M24 1XX, UK.
Registered in England No. 2207264, Registered Office: As Above
Tel: +44 (0) 161 947 3300
Fax: +44 (0) 161 684 7674
E-Mail: enquiries@digitalprojection.co.uk
Web Site: www.digitalprojection.co.uk
Digital Projection Inc.
55 Chastain Road, Suite 115, Kennesaw, GA 30144. USA
Tel: (USA) 770 420 1350
Fax: (USA) 770 420 1360
E-Mail: powerinfo@digitalprojection.com
Web Site: www.digitalprojection.com
DMD and Digital Micromirror Device are trademarks of Texas Instruments Incorporated.
Section A: Overview
Packaging....................................................................AÑ1
Safety Advice...............................................................AÑ2
Initial Preparation ........................................................AÑ5
Components.................................................................AÑ8
Section B: System Installation
Installation Guidelines ..................................................BÑ1
Switching On...............................................................BÑ17
Section C: System Operation
Remote Control - Overview..........................................CÑ1
LED Indicators...............................................................CÑ6
Menu Operation...........................................................CÑ7
Main Menu - Overview ..............................................CÑ11
Channel Set-up Function ...........................................CÑ13
Image Mode...............................................................CÑ28
User Preferences .........................................................CÑ29
Test Patterns ...............................................................CÑ31
Projector Status ...........................................................CÑ33
Set Projector Address..................................................CÑ35
Add Computer ...........................................................CÑ36
Applying a New Signal Source..................................CÑ42
Adjusting the Displayed Image .................................CÑ45
Addressing Multiple Projectors...................................CÑ48
Introduction
Outline of Contents
INTRODUCTION
LBV00018; Revision E - 28/01/98
Section C: System Operation
Computer Control.......................................................CÑ49
Switcher Operation.....................................................CÑ54
Section D: Advanced User Information
Screen Illuminance ......................................................DÑ1
DMDª Operation and Usage ......................................DÑ2
Operation Flowcharts...................................................DÑ4
Lenses .........................................................................DÑ14
Technical Specification ..............................................DÑ44
Section E: Fault Finding & Maintenance
Trouble Shooting ...........................................................EÑ1
Maintenance ................................................................EÑ4
Appendix
Quick Set-up Reference.......................................................i
Menu System Review ........................................................iii
Glossary.............................................................................vi
Introduction
INTRODUCTION
LBV00018; Revision E - 28/01/98
Packaging .........................................................................AÑ1
Projector Packaging.....................................................AÑ1
Lens Packaging ...........................................................AÑ1
Safety Advice ....................................................................AÑ2
Compliance with Regulatory Bodies ...........................AÑ2
Safety Warnings...........................................................AÑ3
Initial Preparation .............................................................AÑ5
Pre-Installation Check ..................................................AÑ5
Remote Control Unit - Battery Installation ...................AÑ6
Remote Receiver..........................................................AÑ7
Components ......................................................................AÑ8
Projector Case ..............................................................AÑ8
LED Indicators ..............................................................AÑ9
Arc Lamp .....................................................................AÑ9
Optics .........................................................................AÑ10
Lenses.........................................................................AÑ10
Electronics ..................................................................AÑ11
Digital Micromirror Devicesª ....................................AÑ11
Analogue Input Board ...............................................AÑ12
Power Supplies ...........................................................AÑ13
Cooling System ..........................................................AÑ13
Air Filters.....................................................................AÑ14
Overview
Section A: Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
Components
Remote Control ..........................................................AÑ14
Remote Receiver ........................................................AÑ15
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
Projector Packaging
To provide protection during transportation, the projector is surrounded with foam,
placed on a wooden palette and enclosed within a sturdy fibreboard carton. The
package is then secured with banding and fastening clips.
To unpack the projector, first release the two fastening clips and remove the
banding. Next, using the finger holes provided, gently lift off the outer cover of the
carton. Do not open the tape seal on the top of the cover.
Lift out the carton containing the peripheral equipment and place to one side, then
remove the two sections of protective foam.
Due to the projector's weight, four people are required to lift the projector, one at
each corner using the finger grips on the underside. The purchaser is reminded to
use good practice in lifting the projector to avoid risk of back injury.
All packaging should be retained to provide maximum protection during future
shipping of the projector. To repack the projector, reverse the above procedure.
Contained within the packaging will be:
1 x POWER display Projector 1 x Remote Control Unit
1 x AC Power Cable 1 x User Manual
4 x Projector Mounting Feet
Should any of the above components be absent, please contact the dealer who
supplied the projector, or Digital Projection Limited (Digital Projection Inc. if in
North America) immediately.
Lens Packaging
Lenses are supplied as individual items and the packaging may differ depending on
the version ordered. Please refer to the instructions supplied with your lens.
AÑ1
Overview
Packaging
OVERVIEW
LBV00018; Revision E - 28/01/98
Compliance with Regulatory Bodies
The POWER 2v, POWER 4dv and POWER 5dv have been built to comply with
IEC950 and UL 1950, the International safety standards for information technology
and electrical business equipment. These standards impose stringent safety
requirements on the construction and operation to prevent energy hazards, access to
live parts and the risk of electric shock. The safety standards also provide
regulations on internal and external temperature increases, radiation levels,
mechanical stability and strength, enclosure construction and fire protection.
The POWER 2v, POWER 4dv and POWER 5dv have been tested and found to comply
with the limits for a class A digital device, pursuant with Part 15 of the Federal
Communication Commission rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area may cause harmful interference, in which case the
user will be responsible for correcting any interference.
AÑ2
Overview
Safety Advice
OVERVIEW
LBV00018; Revision E - 28/01/98
Safety Warnings
All the safety warning in this manual are in bold italic type and can be identified by
the symbol shown on the left.
A list containing all the warnings is given below. It is recommended that time is
taken to study these before installing or operating the projector.
The customer should never attempt to disassemble the lamp from its housing or to
dispose of it other than by returning it to Digital Projection.
The condenser system is precisely aligned in the factory and no attempt should be
made by the customer to adjust it.
Only use lenses specified in this manual or recommended by Digital Projection.
High Voltage, Danger of Death - the arc lamp power supply has a 30kV strike
pulse mechanism, which is active during lamp switch-on.
Do not move or tamper with any seals or ducting panels on the projector or the
air flow could be disrupted and cause the projector to overheat. Always keep the
air inlets and outlets clear of any obstruction.
If the Air Filters are not regularly replaced the air flow inside the projector could
be disrupted and cause overheating. Overheating may lead to the projector shutting down during operation
The projector should never, under any circumstances, be mounted or operated
upside down or at an angle greater than 90° from horizontal.
Never mount the projector near air conditioning or heating ducts, electrical
wiring or any materials which could be affected by the projector's operational
heat i.e. polystyrene ceiling tiles etc.
AÑ3
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
The projector is designed to be lifted using the finger grips on the base. Do not
attempt to lift the projector by holding the front or side covers.
Care should be taken when attaching the projector feet so that the projector does
not rest on its feet at an angle.
Never operate the projector with the cover removed, the arc lamp power supply
has a 30kV strike pulse mechanism, which is active during lamp switch-on.
NEVER look into the lamp housing, or attempt to remove the lamp from its
housing when the lamp is on.
Before attempting to remove any of the projector's covers, you must turn off the
projector and disconnect from the mains supply.
OTHER IMPORTANT SAFETY CONSIDERATIONS
In order to ensure that correct internal airflows are maintained, and that the
projector complies with Electro-Magnetic Compatibility requirements, it should
always be operated with all of it's covers in place.
Ensure that nothing can be spilled on, or dropped inside the projector. If this does
happen, switch off and unplug the mains supply immediately. Do not operate the
projector again until it has been checked by qualified service personnel.
The projector must always be mounted in a manner which ensures free flow of air
into its air inlets and unimpeded evacuation of the hot air exhausted from its
cooling system. The air exit duct at the top of the projector can become hot during
operation and should not be touched by the operator. Heat sensitive materials
should not be placed in the path of the exhausted air.
Do not move or tamper with any seals or ducting panels on the projector or the
air flow could be disrupted and cause the projector to overheat. Always keep the
air inlets and outlets clear of any obstruction.
AÑ4
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
Pre-Installation Check
Before mounting the projector in its intended location, the following pre-installation
routine must be performed:
1. Install the projector lens.
2. Ensure all the air flow inlet and outlet ducts are clear from obstruction.
3. Insert the power cord securely into the socket on the rear panel of the projector
and connect to an appropriate mains supply (refer to the specification label at
the rear of projector).
4. Switch on the projector and wait for approximately 30 seconds.
5. Check air is flowing out of the exit ducts on the top and left hand side of the
projector.
6. With the screen or a wall illuminated, confirm the Menu System is operational
by pressing OSD ON then MENU on remote control (a main menu should be
clearly visible).
7. Turn the lamp off by depressing the LAMP OFF button on the remote control
for two seconds.
8. Power down the projector and disconnect from the mains supply.
9. Continue with the system installation.
AÑ5
Overview
Initial Preparation
OVERVIEW
LBV00018; Revision E - 28/01/98
Remote Control Unit - Battery Installation
The Remote Control Unit can be powered by 4 AAA (HP16/RO3/LR03) alkaline
batteries or by direct connection to the projector via a remote receiver.
The battery compartment is located on the back of the
Remote Control. To remove the compartment cover,
insert a finger-nail into the recess provided to the right
of the cover and push to the right. While pushing to the
right, lift out the left hand side of the cover.
Insert the first two new batteries as shown below and
slide them to the back of the compartment. Insert the
remaining two batteries by pivoting them against the
electrical contacts and pushing down into place.
When the batteries are securely in place, replace the cover by aligning the stays on
the right hand side and pushing down the left hand side until it 'clicks' into place.
AÑ6
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
+
-
-
+
-
+
+
-
-
+
Remote Receiver
The optional remote receiver acts as a relay between
the remote control and the projector and is useful for
installations where the Infra Red signal from the
remote cannot reach the sensors on the projector.
The Infra Red signals from the remote control are
picked up by the IR receiver on the front of the
remote receiver and are relayed to the projector via
the 15 way high density 'D' style connector on the
underside of the unit.
The remote receiver also allows direct cabling (hard
wiring) of the remote control unit via a 4 way
'LEMO' connector. When used in this way, the
remote control does not require batteries and the IR
receiver on the remote receiver is disabled.
Hard wiring has the advantage of allowing control
of the projector from a greater distance: The cable
from the remote control to the remote receiver can
be up to 10m (33ft) in length and the cable
connecting the remote receiver to the projector can
be up to 60m (200ft) long.
When hard wiring, the remote control unit must
be connected to the remote receiver before the
remote receiver is connected to the projector. If the
connections are not made in this order the remote
receiver fuse will trip and the remote receiver will
have to be disconnected for approximately one
minute before reconnecting in the correct manner.
For further information on remote receiver wiring,
see Cables and Connections, D—39.
AÑ7
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
DIGITAL
PROJECTION
4 Way
'LEMO'
Connector
15 Way
HD 'D'
Connector
Mounting
Hole
Infra Red
Receiver
Projector Case
The projector case has an aluminium die cast chassis with rigid corner posts and
cross members to support the side and top covers. The integral mounting plate
provides for easy mounting onto a table, stand or cradle.
AÑ8
Overview
Components
OVERVIEW
LBV00018; Revision E - 28/01/98
55.2mm
(2.17")
300mm (11.81")
975mm (38.38")
525mm (20.67") 450mm (17.72")
83mm
(3.27")
235mm
(9.25")
85mm
(3.34")
30mm
(1.18")
403mm
(15.86")
600mm
(23.62")
30mm
(1.18")
660mm
(25.98")
LED Indicators
There are 3 Light Emitting Diodes (top - red, middle - green, bottom - red) at the
front of the case which indicate the status of the projector. The top red LED is used
to indicate that power is applied to the projector and that it is turned on. The middle
green LED indicates normal operation and flashes when the projector is receiving a
signal from the remote control unit. The bottom red LED indicates that the lamp has
failed. For further information see System Operation, C—6.
Arc Lamp
The projector uses a specialised, high pressure xenon arc lamp designed to operate
in conjunction with Digital Projection's optical condenser system and specialised
power supply unit. The lamp achieves maximum brightness immediately following
strike and is designed for an operating life of greater than 750 hours.
The operator is advised where possible to switch off the lamp using the 'LAMP
OFF' button on the remote control, and allow the cooling system to run on for two
minutes before switching off the mains supply.
The lamp is contained in a special safety housing to dissipate heat and to make
changing the lamp as easy as possible (see Fault Finding and Maintenance, E—6).
The customer should never attempt to disassemble the lamp from its housing or to
dispose of it other than by returning it to Digital Projection.
AÑ9
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
LEDs
Optics
The lamp faces downwards onto a 'cold mirror' which directs the light beam into a
condenser. A prism then splits the concentrated beam from the condenser into red,
green and blue light using dichroic filters and directs the light onto separate
DMDs™. The images produced by the three DMDs™ are then combined by the
prism to form a full colour image and directed into the lens for projection.
The condenser is precisely aligned in the factory. If it is moved there could be a
reduction in light output and image display quality.
Lenses
There are seven lenses available for the POWER display projectors which cater for
all foreseen user requirements. The lenses are identified by their ratio of 'Throw
Distance' to screen width, where 'Throw Distance' is the distance the projector must
be positioned from the screen to display an optimum image (see B—4, Positioning
the Projector).
At present, there are four fixed ratio lenses available for the projector (1.27:1, 3:1,
5:1 and 7:1), two zoom lenses; 1.5:1 to 3:1 and 3:1 to 7:1 respectively and an
SVGA Ultra Wide Angle lens.
1.27:1 is the accurate ratio for the lens marked as 1.2 and this ratio should be
used for any calculations.
The lens required will be dependant on the size of the screen, the 'Throw Distance'
available and the aspect ratios of the images to be displayed. If unsure which lens
would best suit your requirements, consult your dealer.
Only use lenses specified in this manual or recommended by Digital Projection.
AÑ10
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
Electronics
The main electronic components of the projector are the Analogue Input Board,
Digital Processing Card, Formatter Card and the three Display Boards (each of
which contains a Digital Micromirror Device™).
The Analogue Input Board, situated at the rear of the projector, converts analogue
inputs to digital signals and routes them to the digital processing card.
The Digital Processing Card stores the channel configurations and any on screen
adjustments such as brightness, contrast etc. These settings are applied to the
incoming signal for transfer to the Formatter Card.
The Formatter Card translates the digital signal into a format that the Digital
Micromirror Devices™ can read.
Digital Micromirror Devicesª
A Digital Micromirror Device™ (DMD™) is a digital light modulator fabricated
from moving aluminum mirrors. Each mirror, which acts as a pixel, is suspended
between two posts by a thin torsion hinge and can be tilted to the left to produce
a bright pixel or to the right for a dark pixel. There are three DMDs™ in the
projector, one for each of the primary colours, each containing 508,800 mirrors
arranged in a 848 x 600 array.
AÑ11
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
Casing
Inactive Pixels
848 x 600 Array
Light Shield
Analogue Input Board
The Analogue Input Board located at the rear of the projector provides all the
required connections for video, computer, audio and remote control inputs. The
input board is split in three main sections - Power, Source and Control (see below).
POWER
Mains Input - For connection of 200 - 240 V ac 50 - 60 Hz.
Circuit Breaker (On/Off Control) - Combined on/off switch and circuit isolator
(in case of system overload).
SOURCE
Inputs 1, 2, 3 - Each of these inputs can be configured for different signal sources.
RGB, Hs Vs and Hs+Vs are used with a computer input, Composite/G is used with
a composite signal (such as NTSC), C and Y (S-VIDEO) are used with a VHS
video player and Y Pr Pb are used with Betacam or component sources.
Select LED's - The input card LED's indicate which input should be used with the
current channel. If the projector cannot find a valid signal, the LED flashes.
AÑ12
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
POWER SOURCE CONTROL
INPUT 1
WARNING
This equipment
must be earthed
200-240V AC 16A Max
50/60 Hz
Digital Projection Limited, Manchester M24 1XX UK
Tel: +44 (0)161 681 6500 Fax: +44 (0)161 684 7674
Power
Section
INPUT 2
INPUT 3
Component
S-Video
Composite
R/Pr
G/Y
B/Pb
C
-
-
CVbs
H/HV
Y
-
-
-
Source
Section
V
-
-
Component
S-Video
Composite
Infra Red
Receiver
Ext
Remote
Video
Switcher
Audio
Switcher
Out In
Computer
Control
Section
CONTROL
Ext Remote - Input providing direct connection with the remote receiver.
Video Switcher - Control input and output for video switcher configurations.
Audio Switcher - Future Feature, when available this connection will permit the
control of a third party 3 channel audio switcher.
Computer (In/Out) - Provides data input and output ports for computer control and
for daisy chain connector to multiple projectors.
Power supplies
The General Power Supply provides a range of low voltage rails to the electronics.
The Xenon Arc Lamp has a separate high current power supply.
High Voltage, Danger of Death - the arc lamp power supply has a 30kV strike
pulse mechanism, which is active during lamp switch-on.
Cooling System
During normal operation considerable heat is generated inside the projector,
therefore, an air cooling system is provided. This consists of a powerful fan which
draws cool air through specially designed air ducts within the case to distribute it
over the lamp and other components. The cooling system provides maximum
cooling whilst minimising noise output.
Do not move or tamper with any seals or ducting panels on the projector or the
air flow could be disrupted and cause the projector to overheat. Always keep the
air inlets and outlets clear of any obstruction.
AÑ13
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
Air Filters
There are 5 air filters in the POWER 4dv and POWER 2v projectors, one in each side
cover and three underneath. The POWER 5dv has only the 3 air filters underneath.
All filters must be regularly checked and replaced in order to prevent the projector
from overheating.
Air filters are supplied in complete sets and it is recommended that they are
replaced at least every 3 months. All filters can be replaced without the need for
special tools and complete instructions are given on pages E—4 and E—5 of this
manual.
If the Air Filters are not regularly replaced the air flow inside the projector could
be disrupted and cause overheating. Overheating may lead to the projector
shutting down during operation
Remote Control
All the functions of the POWER display are controlled from the remote control,
which can be connected via a remote receiver to the projector. When connected via
the remote receiver, it simultaneously powers the control unit, lights the remote
controls back panel and relays commands back to the projector.
To allow the operator more flexibility the remote control can be operated by four
AAA batteries, producing infra-red signals which are detected by sensors located at
the front and rear of the projector. The remote control unit is designed to transmit
command signals to the projector from a maximum distance of 80m (266ft).
The presence of very bright fluorescent lighting or Infra Red translation systems
may saturate the projectors Infra Red receivers.
AÑ14
Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
Remote Receiver
The optional remote receiver is used to pick-up infra-red signals from the remote
control unit and relay them to the projector.and also provides a 'hard wire' interface
between the remote control and the projector.
The remote receiver is a small 75mm x 100mm x 25mm (3" x 4" x 1") matt black
box with mounting lugs on each end and an infra red sensor on the front. On the
underside there are 2 connection points:- a 15 way high density 'D' style connector
for the projector and a 4 way 'LEMO' connector for the remote control (refer to
A—7 and D—39 for more information).
AÑ15
Overview
OVERVIEW
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Overview
OVERVIEW
LBV00018; Revision E - 28/01/98
Installation Guidelines .......................................................BÑ1
Screen Requirements ....................................................B
Ñ1
Positioning the Projector ................................................B
Ñ4
Mounting the Projector................................................B
Ñ12
Optional Mounting Frames ...................................... BÑ15
Switching On.....................................................................BÑ17
Signal Sources..............................................................B
Ñ17
Turning On the Lamp ..................................................B
Ñ20
Picture Display.............................................................B
Ñ20
Storing System Configurations ....................................B
Ñ22
System Installation
Section B: System Installation
INSTALLATION
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System Installation
INSTALLATION
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This installation section explains how to install the projector for optimum results.
To do this, it is necessary to determine the following:
1. The type of screen and whether front or rear projection is to be used.
2. The projector location and therefore the type of lens to be used.
3. The method of mounting for the projector.
4. The type of input source to be used with the projector.
Screen Requirements
As virtually all commercially available screens will give a pleasing image you
should choose according to your individual requirements. However, to achieve
optimum results we recommend a low gain (1.2 - 1.3), non-perforated screen for
front projection, this will keep hot spotting and light loss to a minimum whilst
providing wide viewing angles.
Regardless of the type of screen used, it is important that your screen is of sufficient
height to display the images at the aspect ratios intended to be used. Use the
following tables to check that you are able to display the full image on your screen.
If you have insufficient height, you will have to reduce the overall image size in
order to display the full image on your screen.
BÑ1
System Installation
Installation Guidelines
INSTALLATION
LBV00018; Revision E - 28/01/98
Screen Width
(metres)
2.40
3.00
3.60
4.20
4.80
6.00
10.00
4 x 3
1.80
2.25
2.70
3.15
3.60
4.50
7.50
5 x 4
1.92
2.40
2.88
3.36
3.84
4.80
8.00
8 x 5
1.5
1.87
2.25
2.62
3.00
3.75
6.25
14 x 9
1.54
1.93
2.31
2.70
3.09
3.86
6.43
16 x 9
1.35
1.69
2.02
2.36
2.70
3.38
5.63
Screen Height (metres) Needed to Display Full Image with Aspect Ratio:
For optimum viewing, the screen should be a flat surface perpendicular to the floor.
The bottom of the screen should be 1.2m (4 feet) above the floor and the front row
of the audience should not have to look up more than 30° to see the top of the
screen (see opposite).
The distance between the front row of the audience and the screen should be at least
twice the screen height and the distance between the back row and the screen should
be a maximum of 8 times the screen height. The screen viewing area should be
within a 60° range from the face of the screen.
If you intend to use a rear projection screen you must ensure you have sufficient
distance behind the screen for the projector to be correctly located (see B—4). Rear
projection has the advantage that the projector cannot be seen and higher ambient
light levels can be tolerated. Although the image can be flipped to rear projection
using the Image Mode Menu (see system operation, C—28) and displayed without
the need for extra mirrors or equipment, it makes the installation more complicated
and advice should be sought from your local dealer before attempting an installation
in this way.
BÑ2
System Installation
INSTALLATION
LBV00018; Revision E - 28/01/98
Screen Width
(feet)
8' 0"
10' 0"
12' 0"
14' 0"
16' 0"
20' 0"
30' 0"
4 x 3
6' 0"
7' 6"
9' 0"
10' 6"
12' 0"
15' 0"
22' 6"
5 x 4
6' 5"
8' 0"
9' 7"
11' 2"
12' 10"
16' 0"
24' 0"
8 x 5
5' 0"
6' 3"
7' 6"
8' 9"
10' 0"
12' 6"
18' 9"
14 x 9
5' 2"
6' 5"
7' 9"
9' 0"
10' 8"
12' 10"
19' 4"
16 x 9
4' 6"
5' 8"
6' 9"
7' 11"
9' 0"
11' 4"
16' 11
Screen Height (feet/inches) Needed to Display Full Image with Aspect Ratio:
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