Clarity Leopard VN-3820-VA User Manual
Leopard
VN-3820-VA
User Guide
VN-3820-VA
VN-3830-VA
User’s Guide
070-0032-06
7 October 2003
© 2003 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.
ii
LIMITED WARRANTY. Clarity warrants to Buyer that the VN-3820-VA or the VN-3830-VA (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 30 days from the
date of installation or first day of rental. 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.
iii
Table of Contents
Information You Need to Know ................... 1-1
1.1 What is the VN-3820-VA (VN-3830-VA)? .................1-2
1.2 Your Safety Is Important .............................1-4
How to Install the Displays....................... 2-1
2.1 Before Your Start . . . ...............................2-2
2.2 Two Ways to Install the Displays .......................2-4
2.2.1 How to Remove and Replace the Screen ..........2-6
2.2.2 Installing: Hanger Method ......................2-8
2.2.3 Installing: Flush to Ceiling .....................2-10
2.3 After the Units Are Hung … ..........................2-12
Setup, Control, and Calibration ................... 3-1
3.1 About the Remote Control............................3-2
3.2 The Power Up Sequence.............................3-4
3.3 Adjusting for Optimum Picture Quality ..................3-6
3.3.1 Adjusting Black and White Levels ................3-8
3.3.2 Matching Frequency & Phase ..................3-10
3.3.3 Matching the Displays to Each Other ............3-12
3.3.3.1 About Color Balancing..................... 3-14
3.3.4 Changing the Position of the Image .............3-16
3.4 Saving and Recalling the Settings .....................3-18
3.5 Setting Additional Controls ..........................3-20
3.6 Controlling with RS232 Commands ...................3-22
Routine Maintenance Is Important................. 4-1
4.1 Replacing Lamp and Air Filter.........................4-2
4.2 Cleaning the Screen and Mirror .......................4-4
If You Have Trouble … .......................... 5-1
5.1 How to Fix Startup Problems..........................5-2
5.2 How to Fix Image Problems ..........................5-4
5.3 Common Questions (and Answers) ....................5-6
References ................................... 6-1
6.1 Menus ...........................................6-2
6.2 LEDs.............................................6-7
6.3 Connections, Interlocks and Lockout ...................6-8
6.4 RS232 Command List ..............................6-10
iv
6.5 Installation Check List .............................. 6-13
6.6 Adjustment Check List ............................. 6-14
6.7 Technical Support Request ......................... 6-15
6.8 Regulatory Information ............................. 6-16
6.9 Specifications .................................... 6-17
6.10 Measurements, millimeters.......................... 6-20
6.11 Measurements, inches ............................. 6-23
6.12 Dimensions for Banner Installations ................... 6-27
6.13 Making Test Patterns With “Paint” .................... 6-28
Index........................................6-31
v
vivi
1 Information You Need to Know
1.1 What is the VN-3820-VA (VN-3830-VA)?
1.2 Your Safety Is Important
1 - 1
1.1 What is the VN-3820-VA (VN-3830-VA)?
The Clarity VN-3820-VA and VN-3830-VA were designed for overhead displays, where several units
are used side-by-side. They display analog VGA signals, just like a computer monitor, using bright
LCD projection technology. They can be controlled with RS-232 signals or with an IR remote control
(supplied). The 3830 model has a brighter lamp, but at the cost of a shorter lamp life. Otherwise, the
two models are the same.
These displays use LCD projection technology
for an image that is bright all the way to the
corners, even in well-lit environments such as
shops, restaurants and sports arenas. The 3800
series, with a 38" (965mm) screen, measured
diagonally, was designed for applications where
several units are lined up side-by-side in a
banner configuration. They are usually mounted
above the viewers. The screen tilts down at a
10° angle for optimum viewing in these
applications.
This manual covers both the VN-3820-VA
and the VN-3830-VA. The only difference
between them is that the 3830
but with half the average lamp life. In this
manual the term VN-3820-VA will mean either
model, unless specifically stated otherwise.
Model Average Life Brightness
VN-3820-VA 8,000 hours 125 fL
VN-3830-VA 4,000 hours 150 fL
!
Note: Average lamp life of 8,000 hours means that
after 8,000 hours of use half the lamps will
still be functioning (and half won’t).
The VN-3820-VA is shipped with the cable tray
removed for easier installation. Plastic buttons
are in place to cover the side-to-side mounting
holes. The batteries are already in the remote
control.
Standard accessories:
• One 3 m 10A IEC power cord
• One 3 m HD15 D-sub VGA patch cable
• One remote control with batteries
installed
• One upper mounting rail (hanger rail)
is 20% brighter
• One lower mounting bracket
• Three bolts, washers and nuts for bolting
the displays side-to-side
• Two end caps with screws for the lower
cable channel doors, left and right ends
• Two bolts for securing the unit to the
lower mounting bracket
• One cable channel door (not really an
“accessory,” but it comes in the
accessories box)
• One User’s Guide (this manual)
Optional accessories:
• A pair of strong magnets to remove
screens in the middle of a banner display
(SRT-200).
• Lock for channel cover (VN-38-LK)
• Power loop-thru cable (VN-38-PL)
• 1 m RS-232 daisy chain cable with RJ45
connections at each end (VN-38-RL)
• 10 m RS-232 host computer cable with
RJ45 connections (VN-38-S-232)
• 9-pin D-sub-to-RJ45 adapter (VN-38-RA)
• Service Manual (VN-38-SM; available
after 31 August 1999)
You will have to supply the hardware to install
the rails on the wall and the tools for this
hardware. For the display, you won’t need any
special tools. If the thumb screws and tight, you
can use a coin to loosen them.
About this manual: You will find some
information repeated in several places. This is
done on purpose. However, the explanation of
how to remove the screen is too long to repeat
every time it is needed; it is given once. The
serial number is located on the back panel and
again in the lower cable channel.
1 - 2
Two displays mounted side-by-side
Top cable channel
Vertical cable channel
Side bolt holes
Lower cable cha nnel
with end cap in place
Display unit, front top view
1 - 3
1.2 Your Safety Is Important
This list of safety warnings isn’t very long. Reading it could save you from getting an electric shock, a
UV radiation burn, or a heat burn.
These display units were designed with the
user’s safety in mind. However, if a user doesn’t
heed the safety warnings and cautions, there is
great potential for physical harm. The safety
warnings are on stickers in various places in and
on the display. They are reproduced on the
facing page so you can see them all at once.
There are some other items you should be
aware of that relate to safety, things to keep in
mind while installing and using the displays:
• The displays need at least 8" (200mm) of
clearance at the bottom. This is not just
for air circulation, which is important, but
also to allow the lamp and air filter doors
to open.
• There is no electrical interlock of the
screen. Opening the screen does not turn
off the power. The screen is held in place
by locks secured with screws. There are no
user-serviceable parts inside, so there is no
reason for a user, who is not a qualified
service person, to open the screen.
• The wall on which the displays will be
mounted must be strong enough to hold
them. Each units weighs about 68 lbs
(31kg). Simply mounting them into
wallboard won’t be adequate.
WARNING TURN OFF POWER SWITCH BEFORE OPENING COVER. HOT LAMP INSIDE. ALLOW AT
LEAST 15 MINUTES FOR LAMP TO COOL BEFORE REPLACING. RISK OF EXPLOSION.
HANDLE BULB WITH CARE. SEE USER’S MANUAL FOR LAMP REPLACEMENT.
AVERTISSMENT COUPER L’ALIMENTATION ELECTRIQUE AVANT OUVERTURE DE LA FACE AVANT.
ATTENTION, LA LAMPE EST CHAUDE. LAISSER REFROIDIR AU MOINS 15 MINUTES AVANT
SON REMPLACEMENT. RISQUE D’EXPLOSION. MANIPULER L’AMPOULE AVEC
PRECAUTION. SE REFERER AU MANUEL DE L’UTILISATEUR POUR TOUT
REMPLACEMENT DE LA LAMPE.
WARNUNG DEM ÖFFNEN DES DENKELS-STROM ABSCHALTEN. VORSICHT-EXPLOSIONS GEFAHR-
LAMPE IST HEIß. WARTE WENIGSTENS 15 MIN. FÜR DIE LAMPE ZUM ABKÜHLEN.
VORSICHT MIT DER LAMPE BEIM HANTIEREN. FOLGE ANWEISUNGEN FÜR DEN LAMPEN
WECHSEL IM REPARATUR MANUAL.
1 - 4
DISCONNECT POWER CORD BEFORE SERVICING.
NO USER SERVICEABLE PARTS INSIDE.
FRON T
!
WARNING
HOT SURFACES NEAR
LAM P. SKIN B URN
HAZARD
Lamp housing as seen from the
bottom of the display
1 - 5
1 - 6
2 How to Install the Displays
2.1 Before You Start . . .
2.2 Two Ways to Install Display
2.2.1 How to Remove and Replace the Screen
2.2.2 Installing: Hanger Method
2.2.3 Installing: Flush to Ceiling
2.3 After the Units Are Hung …
2 - 1
2.1 Before Your Start . . .
There are some important things to think about before you install the displays: How high should the
displays be? Will there be adequate ventilation? How will power and signal cables be routed? Is there
adequate AC power available?
Before you drill holes in the wall, plan ahead. It
won’t take long and could prevent you from
“doing it right the second time.” Here is a list of
the things you should think about:
Power: For every 4 units, you will need one
115V outlet rated at a minimum of 15 amps
(230V rated at a minimum of 8 amps). The
displays have auto-ranging power supplies, so
they work at 230 or 115 VAC without any
manual switching. (Specifications: p. 6-17)
Each unit has an IEC power loop-through
(not fused, not switched) to provide power to the
next units in a line. The limit for this string at
115V is 4 units. The limit on stringing together
the 230V lines is 8 units.
Power enters the unit at the bottom front,
inside the lower cable channel. See Cable
Routing on this page.
Clearance: There must be at least 8 inches
(200mm) of free space below the unit. This is
not just for air flow, although that is certainly
important. This 8" space provides access to the
lamp and air filter doors.
If the display will be mounted with the
hanger method, leave 1" (25mm) above the unit.
This is room enough to lift the unit off the
hanger and remove it.
The sides and back have no clearance
specification.
Stacking units: No stacking permitted! Each
unit needs space below it, as stated above. You
can install them side-by-side, right up against
each other; the units were designed specifically
for this. But no vertical stacking, please.
enclosed cable channel. This is open at
each end, so cables can run from one unit
to the next. End caps are supplied, so you
can close the ends of a row.
• Upper channel: Along each side of the top,
from front to back, there is an open
channel. With adjacent units, these
becomes an open-top tray connected to
the vertical channel.
• Vertical channel: Down the front of each
side is an enclosed cable channel which
connects the upper and lower cable
channels.
With these three channels you can route
cables from the top rear, along the top channel
between a pair of displays, down one of the
vertical channels, and horizontally in the lower
channel from unit to unit.
Wall strength: Each display unit weighs 65 lbs
(30 kg). Be sure to attach the hangers, or the
units themselves in flush mounting, to the wall
studs (interior vertical wall structures).
Mounting at an angle: When the display is
mounted with the back vertical, the screen has a
down angle of 10°. You can mount and use the
displays with the back tilted forward or
backward up to 20°, so the screen will tilt down
at 30° or up at 10°.
The displays can also be mounted with a left
or right tilt of up to 20°. (We don’t know why
you would want to do this, but you could do it.)
Mounting bolts: The upper and lower support
rails are supplied, but you will have to supply
your own hardware for installing these rails.
Cable routing: The units have three channels
for routing cables, both data and control:
• Lower channel: Beneath each unit, going
all the way across the bottom front, is an
2 - 2
Hanger flange
Top cable channel
End cap
Lower cable
channel, closed
Circuit
breaker
Hole for
optional
lock
Bottom rear view
Upper rail
Lamp access
door
Air filter
access door
LED panel
Mirror
adjustment
scr e w, r ear
Lower rail
Viewing cone is ±10° from normal. Display is shown 7 feet (2.1 m) high at bottom.
Back of display is vertical. Screen (normal) is angled down 10°. People shown are 6 feet (1.8 m) tall.
2 - 3
2.2 Two Ways to Install the Displays
There are two standard methods to install the displays: on the supplied hanger or flush mounted. The
hanger method is preferred, because it makes servicing easier. Use the flush mount method only if
the top of the display must be flush with the ceiling. The bottom of the unit must have 8" (200 mm)
of space below it. Two physically capable people are needed to install the displays.
Of the two ways to install the displays—hanger
and flush mount—the hanger method is preferred. It is easier to remove it from the wall, if
you need to do this for servicing. This table
compares the two installation methods:
Hanger Flush to Ceiling
Easy to install and remove
from the wall
Sticks out ½" (13mm) from
the wall
Must be 1" (25mm) below
the ceiling
Unit is securely mounted
to the wall
Bottom of display needs
8" (200mm) clearance
Routine servicing (lamp
and filter replacement)
from below
As you can see, several items are the same
between the two methods. In either case, the
screen must be removed during the initial
installation, and that requires a qualified service
person.
The hanger and lower support bracket are
supplied, but with either method, you must
supply the mounting hardware.
The Flush Mount method can be done by
attaching the display directly to the wall or by
mounting the display on Unistrut™ or other
preformed metal support system.
The Flush Mount method must use the
Must remove screen to
remove from the wall
same
Can be flush against the
ceiling
Same
Same
Same
lower support rail for each display. This makes
the units more secure.
To give you a general idea of the process
involved in the two methods, here are the basic
steps. The details for each method are given in
the next two sections of the manual. Read those
sections. Don’t try to mount the units for the
first time with these brief instructions.
Hanger Method:
1. For all units, mount the upper hanger rails
to the wall, keeping it the proper distance
from the ceiling to allow the display unit
to be lifted onto the hanger.
2. Mount the lower support rails on the wall
the proper distance below the hanger rails.
3. Hang the display units on the hanger rail
and secure it to the lower support rail.
4. Remove the screen and bolt the units
together, side-to-side.
5. Replace the screen.
Flush Mount Method:
1. Measure and drill holes in the wall for the
mounting bolts which you have supplied.
2. Measure for and mount the lower support
rails.
3. Remove the screen.
4. Hold the display against the wall and
install the mounting bolts.
5. Install the bolts in the lower support rails.
6. Bolt the displays together, side-to-side.
7. Replace the screen.
2 - 4
775 mm
19 mm
75 mm
Upper Support Rail
13 mm hole
for flush
mounting
Lower support rail
737 mm
68 mm
Hanger flange
524 mm
19 mm
Rear view, showing support rail dimensions
and holes for flush mounting
!
Note: Drawings in inches are in the Reference section on page 6-23
No more than 4
115 VAC
12 534
Do not connect more than 4 units in an AC series
2 - 5
2.2 Two Ways to Install the Displays
2.2.1 How to Remove and Replace the
Screen
The screen should only be removed by a qualified service person. It can be removed even if the unit is
mounted flush to the ceiling. There are two captive screws at the bottom, inside the cable tray, that
must be loosened to open the screen locks. Then “pop” out the screen at the top.
The screen is removed or replaced in many of
the following procedures, so these instructions
are only given here.
The screen is held in place at the bottom by
tabs that make a sort of hinge and by springloaded latches at the top. It is locked by screen
locks at the bottom which are held by screws.
Only qualified service persons should remove
the screen. There are no user serviceable parts
inside.
To remove the screen:
1. Open the lower cable channel door, if it is
not already open. This is at the bottom of
the unit. Loosen the two captive thumb
screws at the left and right ends of the
access door.
2. Unscrew the two screws at the end of the
cable channel which hold the screen lock
levers.
3. Pull down the screen locks. They pull
straight down about an inch (25mm).
4. Pull the screen out sharply at the top. The
screen will “pop” out at the top.
• If the screen is not against the ceiling,
you can reach the back of the screen at
the top corners and pull out.
• If the screen is against the ceiling and it
is in the middle of a banner (row) of
displays, it can be nearly impossible to
grab the top of the screen to pull it. Use
the optional tool, SRT-200. This
accessory is two strong magnets, each
with about 90 lbs. of pulling strength.
Put the magnets at corners of the wide
mullion near the top. Pull out sharply.
To remove the magnets, tilt them so
one of the long sides comes off.
5. Rotate the screen down a little and lift it
up and off.
To replace the screen:
1. At the bottom of the screen, see that the
screen locks are pulled out.
2. Insert the tabs at the bottom of the screen
into the slots at the bottom of the display.
3. Rotate the screen up against the display
unit.
4. Press sharply with the palm of your hand
to “pop” the screen latches in place at
both top corners. Check that both sides
are properly latched.
5. In the lower cable channel, push the
screen locks up, one on each side.
6. Secure the screen locks with the screws.
CAUTION
requirement to install these screen locking screws.
!
Note: If you are going to transport the display,
7. Close the lower cable channel door and
The cable channel cover swings down on hinges,
but it can also be removed. To remove the door,
unscrew the thumb screws at each end of the
channel and let the door swing down. There are
three hinges, and the center one has a spring
clip to keep the door in place. With the door
open, lift the spring clip and slide the door to
the left. The hinge pins will come out and the
door can be set aside.
This is important! It is a safety
tighten all thumbscrews with a screwdriver. If
the display will not move, “finger tight” is
enough.
secure it with the thumb screws.
2 - 6
Location of
scree n lo cking
scre ws
Screen locking screws are in the cable channel at the sides of each unit.
Screen locking screws
in neighboring units
Screen lock screws of side-by-side units
Screen being removed
2 - 7
2.2 Two Ways to Install the Displays
2.2.2 Installing: Hanger Method
This is the standard, and preferred, mounting method. When the display is mounted using the
hangers that are provided, it is easy to remove it from its position in the banner. Remember to leave a
one-inch clearance at the top.
With the Hanger Method, you need a one-inch
(25mm) space above the display so you can lift
the unit up and onto the hanger. And, of course,
you need an 8-inch (200mm) clearance at the
bottom (measured after the units are hung in
place) to be able to open the lamp and air filter
access doors.
Mounting hardware is not supplied, except
for the bolts that hold the unit to the lower
support rail. You will have to supply appropriate
bolts or screws to attach the rails to the walls.
CAUTION
persons only.
This is a procedure for qualified service
CAUTIONBe sure the mounting bolts go into the
structural member of the wall (wall stud). It is not
safe to mount the hanger rail or lower support rail on
wall board alone.
The center holes of the upper rail, on which
the unit hangs, should be at least 3 11/16 inches
(93mm) below the level of the ceiling. This will
leave at least one inch (25mm) of space to lift
the unit up and over the lip of the hanger rail.
Measuring from the center of the holes in the
upper and lower rails, the lower support rail
should be 20 11/16" (525mm) down from the
hanger rail. This will put it in the right place so
the bottom of the display will rest on the lower
rail when the unit is hung on the upper rail. It is
okay if the distance between the rails is slightly
less than this—it can be as little as 20 9/16"
(522mm)—but don’t make it more.
The hanger rail is 23" (584mm) long. They
should be spaced horizontally 7½" (190.5mm)
apart.
The lower support rails are 30" (762mm)
long. They should be spaced ½" (13mm) apart.
Larger drawings in millimeters and inches are
shown in sections 6.10 and 6.11.
Steps for installing the hanger rails:
1. Measure and mark the positions of the
upper hanger rail and the lower support
rail. Measurements are given in the
preceding paragraphs and in the drawings.
When hanging several units together in a
row, notice that the two rails are not as
wide as the unit itself.
2. Drill holes appropriate for your mounting
hardware.
3. Mount the upper and lower rails for each
unit. Be sure all the rails are even with
each other and properly spaced.
4. The units have three 1/4" holes on each
side for bolting the them together. The
displays are shipped with these holes filled
with plastic buttons. Remove all these
buttons except the ones on the outside
ends of the row. Do not use washers on
these bolts. They are designed to grip the
chassis.
5. Hang each display unit on its hanger rail
and position them so they rest on the
lower support rails.
6. Install the two bolts which hold each unit
to the lower rail. Use washers on these
bolts. (There may be an extra washer in
the accessories kit.)
!
Note: Drawings in inches are in the Reference
section on page 6-23.
Now go to section 2.3: After the Units Are
Hung, page 2-12.
2 - 8
Rear view showing hanger flange
and upper cable channel
Lower support rail
582 mm
609 mm
Hanger
flange
121 mm 316 mm
68 mm
Upper
support
rail
13 mm
524 mm
13 mm
Lower
support
rail
Side view with dimensions to center of holes in support rails
2 - 9
2.2 Two Ways to Install the Displays
2.2.3 Installing: Flush to Ceiling
The flush mounting method is not the preferred method, However, for those installations that
absolutely require the unit to be flush mounted to the ceiling, this is the way to do it. It is a little
more difficult to remove a unit from its position when mounted this way.
With this method, you do not need any space
between the ceiling and the top of the display.
Heat is not a problem. However, it is still
necessary to leave 8" (200mm) below the unit to
be able to open the lamp and air filter doors.
The units can be mounted directly to the
wall. The display will stick out from the wall the
thickness of the hanger flange. Or you can use
Unistrut™ or some other preformed metal
support system. These systems allow the units
to slide sideways for final positioning, but the
units will stick out from the wall by the thickness of the support system hardware.
CAUTION
Always secure the unit to structural members within
the wall, such as studs.
Do not mount directly to wallboard.
CAUTIONAlways use the lower support rail of
some type. If your planned installation will not use
the supplied lower support rail, use some other
structurally sound method of securing the bottom of
the units to the wall.
The lower support rail provides a vital
measure of safety. It is a rest for some of the
weight of the unit, and it secures the unit to the
wall. Always use the lower support rail in flush
mounting the displays. The lower support rails
are 30" (762mm) long. They should be spaced
½" (13mm) apart.
Steps for mounting flush to ceiling:
1. If you will use a preformed metal support
system, measure and mark the positions
for these and for the lower support rail.
— or —
1. If you will install the units directly to the
wall, measure and mark the positions of
the lower support rail and the two
mounting holes. Measurements are given
in the drawing on the facing page.
2. Drill holes appropriate for your mounting
hardware.
3. Mount the lower rail for each unit. Be sure
all these rails are even with each other.
4. Remove the screens from all units.
5. The units have three 1/4" holes on each
side for bolting the them together. The
displays are shipped with these holes filled
with plastic buttons. Remove all these
buttons except the ones on the outside
ends of the row.
6. With someone holding the unit in
position, install the two upper mounting
bolts.
7. Optionally, you may bolt the units together side-to-side. Do not use washers on
these bolts.
8. Install the two bolts which hold the unit
to the lower support rail. Use washers.
There may be an extra washer in the kit.
9. Replace the screens and secure their
latches. Tighten (only finger tight) the
screen latch screws.
Now go to section 2.3: After the Units Are
Hung, page 2-12.
2 - 10
775 mm
19 mm
75 mm
13 mm holes (2)
for flush mounting
Lower support rail
737 mm
Hanger flange
592 mm
19 mm
Back view with flush mounting hole dimensions, no upper support rail
!
Note :
Drawings in inches are in the Reference section on page 6-23.
2 - 11
2.3 After the Units Are Hung …
Bolt the units together side-to-side. Each unit has three channels for cables. After the cables are laid
out in these, all the video, control and power connections are accessible from the bottom cable
channel.
At this stage, the units are all mounted on the
wall. The next step is to bolt the units to each
other. Three 1/4" bolts with wingnuts are
provided for this purpose. With all the screens
removed, bolt the units together, removing the
plastic buttons if you have not already done this.
Lay out the cables in the channels, bringing
everything to the lower cable channel. The three
cable channels are:
• Along the top from front to back there is
an open channel made by two neighboring
units.
• There is a vertical channel down the front
of each side which connects the upper and
lower channels.
• There is a lower channel with a door
which can be removed. (The displays are
shipped with this door removed.) There is
an optional lock available for this door,
and there are end caps for the units on the
end of the row. The lower channel has
cable clamps for dressing cables so they
don’t fall down when the door is opened.
All cables should be routed in these channels:
video data, RS-232 control and power.
Power can be looped from one unit to the
next with the optional VN-38-PL Power
Loop-Thru cable.
CAUTION
at 240V) should be looped together for power.
RS-232 control cables can be looped together
to make one line. The only limit on number of
units is signal strength at the end of a long line.
Always use the best quality RS-232 cables
available. It saves time and headaches.
End caps should be installed on the two ends
No more than 4 units at 115V (or 8 units
of the lower cable channel for a neater
appearance and to keep curious hands out. Open
the cable channel door. Clip the end cap onto
the door with the slanted part toward the front
of the door. Secure the end cap with a screw
(supplied). Close the door. The doors can now
be opened and closed with the caps in place, and
they can’t be removed with the doors closed.
(Yes, you will have many extra end caps.)
When all the cables are connected, it’s time to
close the units. Here is a check list:
• Screens are in place, the screen locks are
closed (up), and the two Phillips head
screws are tightened on each lock.
• Video data cables and RS-232 control
cables are connected.
• Power cables are connected. If you used
power loop-thru, no more than 4 units at
115V (8 units at 240V) are looped
together.
• End caps are installed at each end of the
row and secured with screws.
• Plastic buttons are installed in the side
bolt holes on the end units.
• Lower cable trays are closed and secured
with the thumb screws at each end. If
these units have the optional lock
(VN-38-LK), they are locked.
• The air filter door is closed and the air
filter is installed in it.
• The lamp is installed and its access door
is closed.
One last thing: Stand in front exactly between
each pair of displays. Look straight at the point
where the sides of two units meet. Sometimes
there is a slight crack between them, and you
can see light coming from above the displays. If
this is going to be distracting, use black tape on
the top of this crack to block the light. The tape
won’t be visible from the front.
2 - 12
Computer input; RS-232 input and output
AC power input and output
No more than 4
115 VAC
12 534
o not connect too many units in series for AC power.
Four (4) display units is the limit.
2 - 13
2 - 14
3 Setup, Control, and Calibration
3.1 About the Remote Control
3.2 The Power Up Sequence
3.3 Adjusting for Optimum Picture Quality
3.3.1 Adjusting Black and White Levels
3.3.2 Matching Frequency & Phase
3.3.3 Matching the Displays to Each Other
3.3.3.1 About Color Balancing
3.3.4 Changing the Position of the Image
3.4 Saving and Recalling the Settings
3.5 Setting Additional Controls
3.6 Controlling With RS-232 Commands
3 - 1
3.1 About the Remote Control
The units can be controlled with the remote control and with RS-232 commands coming from a
“control” computer. It is generally faster and easier during initial setup to use the remote control.
This section is an overview of the remote control.
A remote control is provided with each unit,
although you will probably only need one of
them for the entire row of displays. If there are
lots of people around the displays, it is probably
a good idea to keep these out of sight to prevent
curious fingers from turning the units off,
changing the settings, and generally causing lots
of trouble.
The remote control operates like a TV or
VCR remote with IR (infra-red) signals. Aim the
remote at the screen. When there are several
displays in a row, you may have to get close to
the unit you want to control. Otherwise you
find yourself affecting two or three units. There
is a way around this, which is explained below
under How to control only one unit.
Many of the functions on the remote control
will seem obvious. Here is an explanation of the
main features:
•The
ON and OFF buttons turn the lamp on
and off. It takes a few seconds for the
lamp to light when you press the ON
button. OFF turns the lamp and fans off,
of course. The electronics remains on as
long as there is power and the circuit
breaker is on.
•The
MENU button opens the main menu
on the screen. From this menu you
highlight an item with the up-down
arrows. Then press
ENTER to activate the
highlighted selection.
•The
PREV MENU button closes the current
menu and keeps the “parent” menu, if
there is one. If there isn’t a parent menu,
this button removes the last menu.
•
ENTER selects the highlighted item and
opens that menu. Or, if the highlighted
item is like this:
[ ] Flip Vert
it turns on (or turns off) the feature.
• Seven of the main menu items have fast
access buttons that let you get to the
feature immediately. These are in the
upper right corner of the remote. (In this
display, the Source button has no
function; it is used in other Clarity
products, which use the same remote.)
• In general, the up-down arrow buttons
move through the menus, and the rightleft arrow buttons change the highlighted
value.
•The
ID and MON SEL buttons are different
because their functions are not available in
the main menu.
How to control only one unit: The IR signal
from the remote radiates over a fairly broad area,
and it is sometimes hard to control just one
unit, especially if you are more than 10 feet
(3m) back. To solve this, turn off the IR sensor
in the units you don’t want to control. Get close
to the units you want to “turn off” and press
MON SEL and press ENTER. Now that unit will not
respond to any commands except another
- ENTER, which will turn it back on.
SEL
MON
In this manual, buttons on the remote control
will be printed in a style like this:
LEVEL
and menu items will be printed like this:
Input Level
3 - 2
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