Clarity WN-5220-S User manual

52” VideoWall Display
WN-5220-S
User’s
Guide

ii
1999 by Clarity Visual Systems™, Inc.
All Rights Reserved.
Contents of this publication may not be reproduced in any form without permission of Clarity Visual
Systems, Inc.
Trademark Credits
Macintosh is a registered trademark of Apple Computer Corp.
IBM is a registered trademark of International Business Machines, Inc.
Windows is a trademark of Microsoft Corp.
All other names are trademarks or registered trademarks of their respective companies.
Disclaimer
The information contained in this document is subject to change without notice.
Clarity Visual Systems Company makes no warranty of any kind with regard to this material. While every
precaution has been taken in the preparation of this manual, Clarity Visual Systems shall not be liable for
errors or omissions contained herein or for incidental or consequential damages in connection with the
furnishing, performance, or use of this material.

52” VideoWall Display
WN-5220-S
User’s
Guide
070-0026-02

June 1999
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v
LIMITED WARRANTY. Clarity warrants to Buyer that the WN-5220-S (the “Product”), if
properly used and serviced, will perform substantially in accordance with the product data sheet
and users manual, and will be free from defects in material and workmanship for 1 year following
date of shipment. This warranty does not apply to lamps (see following section for lamp warranty)
and other consumable parts.
The main illumination lamp is considered a consumable, and is warranted against failure for the
first 3000 hours of usage, or 125 calendar days, whichever occurs first. The replacement of other
consumable parts are the Buyer's responsibility.
If any Product fails to conform to the written warranty, Clarity's exclusive liability and Buyer's
exclusive remedy will be, at Clarity's option, to repair, replace or credit Buyer's account with an
amount equal to the price paid for any such defective Product returned by Buyer during the
warranty period, provided that: (a) Buyer promptly notifies Clarity in writing that such Product
failed to conform, furnishes an explanation of any alleged deficiency and obtains from Clarity a
return authorization; and (b) Clarity is satisfied that claimed deficiencies actually exist and were
not caused by accident, misuse, neglect, alteration, improper installation, repair or improper
testing. Clarity will have a reasonable time to make repairs, to replace Products or to credit
Buyer's account.
LIMITATIONS. ANY WRITTEN WARRANTY OFFERED BY CLARITY IS IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED. CLARITY NEITHER ASSUMES NOR
AUTHORIZES ANY OTHER PERSON TO ASSUME ANY OTHER LIABILITIES IN
CONNECTION WITH THE SALES OR USE OF ANY PRODUCT WITHOUT LIMITATION.
CLARITY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR.
IN NO EVENT WILL CLARITY BE LIABLE TO BUYER OR ANY OTHER PARTY FOR
PROCUREMENT COSTS, LOSS OF PROFITS, LOSS OF USE, OR FOR ANY OTHER
INCIDENTAL, CONSEQUENTIAL, INDIRECT OR SPECIAL DAMAGES OR FOR
CONTRIBUTION OR INDEMNITY CLAIMS, HOWEVER CAUSED. CLARITY'S LIABILITY SHALL
BE LIMITED TO ACTUAL DIRECT DAMAGES NOT IN EXCESS OF THE AMOUNTS PAID TO
CLARITY BY BUYER FOR THE PRODUCT. THESE LIMITATIONS WILL APPLY TO ALL
CLAIMS, INCLUDING, WITHOUT LIMITATION, WARRANTY, CONTRACT, INDEMNITY, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE.

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Table of Contents
Product Introduction.....................................................................................................................1
Introduction....................................................................................................................1
Features .........................................................................................................................1
Options and Accessories ..................................................................................................2
Safety.............................................................................................................................................5
Mechanical Installation................................................................................................................. 9
Site Requirements .........................................................................................................10
Power.....................................................................................................................10
Temperature and Humidity ......................................................................................11
Flooring ..................................................................................................................11
Clearance ...............................................................................................................12
Cooling ...................................................................................................................12
Mechanical Setup, Standard Screen ................................................................................13
Mechanical Setup, Ultra-Thin Mullion Screen ...................................................................14
Basic Steps for Alignment ........................................................................................15
Alignment Procedure in Detail ..................................................................................16
Cables ..........................................................................................................................21
Initial Setup.................................................................................................................................23
Step 1 – Power-Up ........................................................................................................23
Step 2 - Adjust the Input Signal Settings.........................................................................25
Select the Source ....................................................................................................25
Adjust the Black Input Level - PC, MAC or RGBS Video...............................................27
Adjust the White Input Level – PC, MAC or RGBS Video .............................................28
Comp Video/S-Video Level Adjustment .....................................................................30
Adjust the Frequency...............................................................................................33
Adjust the Phase .....................................................................................................34
Set the Sharpness ...................................................................................................35
Position the Image ..................................................................................................36
Scale the Image ......................................................................................................38
Step 3 - Adjust the Colors ..............................................................................................39
Step 4 – Save, Recall, or Reset the Settings ....................................................................43
Turning off the System ..................................................................................................45
Turn off the Lamp, Enter Standby Mode....................................................................45
Turn off Main Power Switch .....................................................................................46
Clarity’s Big Picture™ ..................................................................................................................47
Loop-Thru of Source Video.............................................................................................50
Installing Big Picture Option Key.....................................................................................52
Other Features and Adjustments................................................................................................53
Curtain ...................................................................................................................53

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Monitor Select .........................................................................................................54
ID ..........................................................................................................................54
Miscellaneous Controls...................................................................................................54
Set the Number of Colors.........................................................................................55
Remote Control Tone...............................................................................................56
Flip the Image Horizontally ......................................................................................56
Flip the Image Vertically ..........................................................................................56
Auto Lamp On.........................................................................................................57
Reset Lamp Hours .........................................................................................................57
About ...........................................................................................................................59
Cleaning and Maintenance..........................................................................................................61
Lamp............................................................................................................................61
Lamp Replacement, Front, Standard Mullion Screens .......................................................62
Removing a Standard Screen Using the Screen Removal Tool.....................................63
Lamp Replacement, Rear Access, Either Screen Type ......................................................64
Air Filter Replacement, Front or Rear Access ...................................................................64
Cleaning the Screen and Mirrors.....................................................................................65
Troubleshooting ..........................................................................................................................67
Power and Start-Up Problems ........................................................................................67
Common Problems and Answers.....................................................................................70
Image Problems ............................................................................................................71
Connector Pinouts .......................................................................................................................72
RGBS............................................................................................................................72
MAC .............................................................................................................................73
PC & LOOP-THRU..........................................................................................................73
RS-232 IN.....................................................................................................................75
RS-232 OUT..................................................................................................................75
S-VIDEO .......................................................................................................................76
Interface and Controls ................................................................................................................77
Rear Panel Indicators, Connectors and Controls...............................................................77
Rear Panel Indicators ..............................................................................................77
Rear Panel Connectors.............................................................................................78
Rear Panel Controls .................................................................................................79
Remote Control .............................................................................................................80
Remote Control Functions ........................................................................................80
Menus ..........................................................................................................................82
RS-232 Control ............................................................................................................................89
RS-232 Control Items ....................................................................................................92
Specifications ..............................................................................................................................97
Environmental...............................................................................................................97
Picture Control ..............................................................................................................97
Optical..........................................................................................................................98
Mechanical....................................................................................................................99
Electrical.....................................................................................................................100
Regulatory Information ............................................................................................................103
Declaration of Conformity ............................................................................................ 103
FCC Regulations .......................................................................................................... 104
Other Certifications...................................................................................................... 104
Index..........................................................................................................................................105

1
Product Introduction
Introduction
The WN-5220-S VideoWall is a multi-frequency, multi-source display capable
of displaying a wide range of video sources. The clear, bright image is a
product of careful engineering and optical innovation. Setup is easy because of
light weight and simple mechanical connections. And it is fast because there
are only a few adjustments necessary to configure the image.
The optional Ultra-Thin Mullion screen gives the display additional flexibility in
meeting the most demanding image quality applications. By eliminating the
front-surface frame, this screen nearly eliminates the visible seam between the
displays. (Mullion: the metal edge around the screen.)
Clarity’s Big Picture™ option is a built-in data/videowall processor. Without the
need for an external processor, Big Picture can scale the source video to
accommodate any display wall size up to four high and four wide.
Features
Clarity’s products are designed and developed by experts in LCD projection
technology and offer significant advantages over conventional cathode ray
tube (CRT) based systems including:
• optical resolution of 800x600 pixels
• ability to scale lower resolution sources up to 800x600
• supports a wide variety of computer and video formats
• superior image quality (even in high ambient light conditions)
• substantially lighter weight – 120 lbs (55 kg)
• significantly reduced depth (reduced footprint)
• lack of image flicker
• improved brightness uniformity (no “hot spots”)
• no convergence requirements
• no color drifting
• easy to service
• fast and easy setup

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Additional Features
• direct compatibility with a wide range of video and computer data
sources: 800x600 and 640x480 for PC and MAC; 31.5 kHz line
doubled RGBS video
• with the optional S/300 electronics, 15.75 kHz RGBS video and the
ability to decode and display NTSC, PAL and SECAM directly
Options and Accessories
Clarity’s display products can be enhanced with several accessories.
!"
Ultra-Thin Mullion Screen – The options are:
• The standard screen has a mullion 1/8” (3 mm) wide.
The mullion is a strip of sheet metal surrounding the
screen which holds it in place.
• The Ultra-Thin Mullion Screen, or mullionless screen,
does not have the 1/8” (3 mm) strip of sheet metal
around the screen. The edge of the screen goes to
within 0.025” (0.64 mm) of the edge of the display unit,
which makes the lines between display units almost
invisible in the finished video wall.
!"
S/300 Option - Video Input Module
This option adds the ability to scale up the image on each
edge of the display for a better image fit when working with
multiple displays. It also adds three new source inputs:
15.75 kHz RGBS video, and composite and S-video in
both NTSC, PAL and SECAM.
!"
Clarity’s Big Picture™
This option allows a single video source to be expanded
over a video wall up to 4x4 displays, eliminating the need
for an external processor. (All display units in the video
wall must have this option.) Scaling and moving of the
individual images facilitates exact matching at the borders.
!"
SRT-100 Screen Removal Tool
This tool makes it easy to remove the normal mullion
screens when the displays are used in video walls, where
units are placed directly adjacent to each other. The
SRT-100 minimizes the chance of damaging the screen
and the screen’s latches. (It cannot be used with Ultra-Thin
Mullion Screens.)
!"
SAT-500 Screen Alignment Tool
This tool is essential to properly position the display units
with the Ultra-Thin Mullion Screen in a video wall. It helps
assure the correct spacing between adjacent screens in
the assembled video wall. (Cannot be used with standard
mullion screens.)

3
!"
BAS-520 Base for the WN-5220-S
The BAS-520 provides a permanent attachment to
flooring.
Please contact your reseller for a current listing of available options or visit
Clarity’s website at www.ClarityVisual.com

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WN-5220-S VideoWall User’s Guide
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Safety
Please read this chapter carefully before attempting to install, use,
service, or repair the WN-5220-S VideoWall. There are a number of
potentially dangerous areas inside the unit. These are identified with
the following warning labels.
Hazardous voltage inside. Can shock, burn, or cause
death. No user serviceable parts inside. Refer all
service to qualified serviceman.

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Hazardous voltage. Can shock, burn or cause death.
Disconnect power cord before servicing this unit. Refer
to service manual for details.
Explosion hazard. Hot bulb under high pressure. Wait
more than 5 minutes before changing lamp. Handle
lamp assembly carefully; do not touch bulb. See
instructions for changing lamp assembly.
Hot surface near lamp. Skin burn hazard. Wait more
than 5 minutes for lamp housing to cool before
replacing lamp assembly. See instruction manual.

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UV radiation from unprotected, operating bulb. Eye
damage injury. Do not disturb light path shielding from
the bulb.
WARNING Only the WN-5220-S lamp, air filter, and fuse are user
serviceable. Always turn off and disconnect power before
servicing these items. Refer all other service to a qualified
service center. Failure to do so could result in electrical shock,
ultraviolet radiation burns, contact heat burns, serious injury, or
irreparable damage to the WN-5220-S and may void your
factory warranty.
WARNING The area around the projection lamp and the projection lamp
assembly become extremely hot during and after use. Use
extreme caution and let the WN-5220-S’s lamp assembly cool
for 5 minutes before touching or replacing the lamp assembly.
WARNING The WN-5220-S contains electrical interlocks that prevent
operation of the display when the front screen is removed. Do
not bypass these interlocks, except for servicing. Never
operate the WN-5220-S with any access panels or the front
screen removed from the unit, except for servicing. Operating
the WN-5220-S with access panels or the front screen
removed can expose service or operating personnel to
ultraviolet burns and high electrical voltages. Always wear
ultraviolet-blocking eyewear with side guards when servicing
the WN-5220-S.
WARNING The WN-5220-S uses a high-intensity projection-lamp module.
Do not attempt to replace the projection lamp module with any
alternative light source. Doing so can cause overheating or
unacceptable image quality. Replacement lamp modules may

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be ordered from Clarity Visual Systems, Inc. Use only the
projection lamp module specified by Clarity Visual Systems,
Inc. or an authorized Clarity Visual Systems, Inc. Service
center. Use of any other lamp voids the warranty.
WARNING Do not block the WN-5220-S cooling fan or free air movement
under, over, or around the WN-5220-S. Loose papers or other
objects should not be nearer to the WN-5220-S than 6 inches
on any side.
CAUTION Air handling ducts can discharge unwanted dust or high-
temperature air directly on the display. Do not operate the
WN-5220-S in dusty or high-temperature conditions.
CAUTION Where several WN-5220-S displays are combined vertically,
installation of the top level requires a minimum of 12 inches of
clearance in order to position and fasten the display in place.
CAUTION Some types of environmental lighting, such as incandescent, or
high-intensity discharge lamps such as metal halide or mercury
vapor lamps create high temperatures. This can cause
excessive heating of the display. The unit should be positioned
away from lighting to prevent heat buildup.
CAUTION The front screen of the WN-5220-S display can be easily
scratched and the optical quality degraded by fingerprints.
Install the WN-5220-S in such a way that it is not exposed to
touching or possible scratching by hard objects.
CAUTION Display units with Ultra-Thin Mullion screens are not
serviceable from the front.

WN-5220-S VideoWall User’s Guide
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Mechanical Installation
Read the chapter on safety precautions before installing and
operating the WN-5220-S VideoWall.
WARNING Use help. The WN-5220-S weighs approximately 120 lbs
(55 kg). Do not attempt to lift or move the WN-5220-S without
help. Always use all four lifting handles to move or lift the WN-
5220-S.
The WN-5220-S comes with either a standard screen or an Ultra-Thin
Mullion Screen:
• The standard screen has a mullion about 1/8th inch (3 mm) wide.
The mullion is a strip of sheet metal surrounding the screen and
holds it in place.
• The Ultra-Thin Mullion Screen, or mullionless screen, does not
have the 1/8th inch strip of sheet metal around the screen. The
viewing area of the screen goes right to the edge of the display
unit. This makes the lines between display units much less
apparent in the finished video wall.
The following table shows installation specifications for common
display configurations. (The table applies to both the standard screen
and the Ultra-Thin Mullion Screen.)

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Height x Width
Number of display units 1x1 Single 1x2 2 displays 2x2 4 displays 2x3 6 displays 3x3 9 displays 3x4 12 displays 4x4 16 displays
Screen Height, inches 31.3 31.3 62.6 62.6 93.3 93.9 125.2
Screen Width, inches 41.7 83.4 83.4 125.1 125.1 166.8 166.8
Weight, pounds 120 240 480 720 1080 1440 1920
115 Volts A/C Input
Current, amps 8 16 32 48 72 96 128
Power, watts 920 1840 3680 5520 8280 11,040 14,720
Heat, BTU/hr 2827 5655 11,310 16,965 25,448 33,931 45,241
Air Cond., tons .24 .47 .94 1.41 2.12 2.83 3.77
230 Volts A/C Input
Current, amps 4 8 16 24 27 48 64
Power, watts 920 1840 3680 5520 8280 11,040 14,720
Heat, BTU/hr 2827 5655 11,310 16,965 25,448 33,931 45,241
Air Cond., tons .24 .47 .94 1.41 2.12 2.83 3.77
Table 1
Site Requirements
Power
Make sure the power cord is compatible with the nominal power
source used with the WN-5220-S display.
Power Consumption
Power consumption of the WN-5220-S is 920 Watts, or approximately
8 Amps current draw at 115 VAC (4 Amps at 230 VAC). The
WN-5220-S can be configured to operate on either 90-130 VAC or
180-260 VAC nominal power sources at 50/60 Hz.
Voltage Range
The operating voltage range of the WN-5220-S is set via a switch on
the power supply near the AC power plug and on/off switch.
Operation of the display at the incorrect voltage level can cause
damage to the unit which is not covered by the warranty.
!"Select the setting labeled 115V if your power source is
between 100 and 120 Volts AC.
!"Select the setting labeled 230V if your power source is
between 200 and 240 Volts AC.
If the input voltage drops below approximately 90V (175V if the
WN-5220-S is set to the 230V setting) the display will automatically
shut down to protect itself.

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On a typical 20A, 115V circuit, no more than two WN-5220-S displays
may be installed. This allows an extra current margin. If any circuit
used to power one or more WN-5220-S displays is not a dedicated
circuit, the additional electrical load placed on the circuit by other
equipment must be considered.
WARNING Displays that are intended for 240V configuration must have a
properly rated power supply cord and attachment plug supplied
by the installer.
WARNING If extension cords are used for power, use only 3-prong
grounded cords sized to handle system power requirements.
Using the wrong-size extension cord can cause a fire-safety
hazard and can reduce the voltage available to the
WN-5220-S. If the extension cord is warm to the touch it is too
small and should be immediately removed from operation.
Temperature and Humidity
The WN-5220-S is designed to operate over an ambient temperature
range of 0°to 35°C (32°to 95°F) and a humidity of 20 to 80 % R.H.
non-condensing.
Some types of environmental lighting, such as incandescent, or high
intensity discharge lamps such as metal halide or mercury vapor
lamps, create high temperatures and this can cause excessive
heating of the WN-5220-S. Displays should be positioned far enough
away from high-temperature lights to prevent heat buildup.
Nearby heat sources can cause high operating temperatures in the
WN-5220-S display. Minimize the display’s exposure to heating ducts,
radiators, or other external heat sources.
Flooring
A single WN-5220-S display unit weighs approximately 120 lbs (55
kg). Before installing the WN-5220-S, determine the structural
integrity of the flooring where it will be used. The floor should be level
and strong enough to support the combined weight of the number of
displays and other equipment used in the installation. Take special
care when installing a WN-5220-S in a wall configuration on a
temporary structure such as a stage floor, where the flooring could
bend or collapse under the weight of the installation. Never stack
more than four (4) WN-5220-S displays vertically on a temporary
floor.

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Clearance
Normal maintenance, such as lamp module and air filter replacement,
can be performed from the front or rear of the WN-5220-S. Maintain
sufficient clearance to allow easy access from the front. A minimum of
4 feet is recommended. For full maintenance from the rear, the
minimum recommended clearance is 3 feet.
To allow proper cooling, the minimum required clearance to the rear
of the display should be 6 inches. The minimum required clearance to
the top at the front of the unit is 6 inches. See Environmental
Specifications on page 97 for cooling requirements.
If installed in a video wall configuration, a minimum of 12 inches to
the ceiling from the top of the highest display is needed if the units
are installed from the front.
Cooling
Regardless of clearances and the general ambient temperature, the
most important factor that affects reliable operation is the temperature
and quantity of air coming into the display. The intake air temperature
at the air filter must not exceed 95°F (35°C). If there is any doubt
about this temperature in an installation, run the displays for several
hours before taking temperature measurements. Prevent problems by
replacing dirty air filters and keeping the air path clear.