AVS—Automatic
Vertical Screen
O W N E R ’ S
M A N U A L
To the Owner
Installation Instructions
Operating the Screen
Maintenance
AVS-1005
TO T H E I N S TA L L E R : BE S U R E TO L E AV E T H I S M A N U A L W I T H T H E O W N E R .
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AVS—Automatic
Vertical Screen
O W N E R ’ S
M A N U A L
Contents
To the Owner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Preparing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation and Electrical Hook-up . . . . . . . . . . . . . . . . . . . . . 4
Operating the Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Adjusting the Screen Extension . . . . . . . . . . . . . . . . . . . . . . . . 7
Screen Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Automatic Vertical Screen: Owner’s Manual
1
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TO THE OWNER
Congratulations on your purchase of the finest optical viewing screen
available anywhere in the world!
Please take a moment to review this manual—it will help ensure you many
years of trouble-free service from your new Stewart Filmscreen product.
About your Automatic Vertical Screen (AVS)
The AVS screen enclosure is below the image position, and can be
concealed in a sideboard, credenza, or in the floor. When the screen is
activated, the trap door mechanism automatically opens and the screen
ascends on spring-loaded arms to its full position.
The trap door face plate can be painted or laminated to perfectly match the
decor of the installation environment.
Model options
The AVS is available in three models:
‹ With adjustable stands and casters for ease in portability
‹ Floor recessed, when a completely hidden screen is required
‹ Wall mount
An auto anti-keystone tilt feature is available as an option for all systems;
this feature must be preset at the factory.
Batten
Safety cable
Audience right
Arm
Electrical connections:
AC, control switch
(slight bend is
normal when screen
is extended)
Door
Case / housing
Figure 1. AVS components, back view
2
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PREPARING THE INSTALLATION
Note: This manual refers to “AC” to represent electrical power. Your
location may use 120 V, 220 V or other electrical power. Screen systems
are manufactured using the electrical power type specified for the location.
Use appropriate power sources for your location.
Preparation
Specifications regarding the individual screen dimensions, weight, mounting,
and controls are provided by the factory when the unit is ordered. Before
beginning the installation:
‹ Check the specifications for any options.
‹ Prepare the location for the AC power.
‹ Ensure site has clearance for the screen when it is fully extended,
and that there are no obstructions in its path.
‹ Check the size and weight of the screen to be installed so that
you can plan for the number of people required to move it. You
need at least two people for the smaller screens; more are
needed for larger, heavier screens.
You will need:
‹ A level
‹ Electrician tools for connecting the low-voltage control switch.
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INSTALLATION AND ELECTRICAL HOOK-UP
Caution
Professional techniques need to be used when making any
electrical connection. A qualified electrician should perform
these procedures.
Be sure to follow all standard safety procedures for
installing electrical devices.
Do not disassemble or alter the configuration of the motor
or the unit's electrical connections. This may cause injury to
you or damage to the product.
The electrical connection should be made only to the type
of power source indicated on the marking label.
Installing the AVS
‹ Position the case so that the motor connection is at audience
right. Do not attach any items to the batten or screen assembly,
the door assembly, or the arm assembly.
‹ Ensure that the case is level and plumb.
‹ If the screen is large, secure the case (for example, bolt to the
floor). Attach L-angle mounts to the end plates, if required. Do
not drill into front or back sides of housing to attach mounting
hardware.
Caution
Do not make any adjustments to the steel cables.
Do not remove or loosen any bolts on the case or spring
arms.
AC connection
AC electrical hook-up
The motor requires standard AC power, hardwired using a Romex
connection. The connection is made to the J-box on the side of the unit
(audience right).
General suggestions for wiring:
‹ Soldering is recommended.
‹ The use of wire nuts is acceptable.
Figure 2. AC connection
4
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Installing the low-voltage 3-button switch on the wall
The Stewart Filmscreen low-voltage control allows the use of Class 2 low-
voltage wire to connect to the supplied 3-position momentary wall switch or
auxiliary AV switching systems.
The switch control plate is connected to the unit’s J-box at the factory. You
can use the switch temporarily in this position to test the AC connection.
Remove the switch from the J-box and connect it at an appropriate wall
location.
Note: If an IR option has been ordered, the sensor is already connected to
the low voltage control box inside the case. The wire is passed through the
J-box with the low voltage switch control wiring. Position the sensor
appropriately for the location.
Preparing the connection
Before making the electrical connections, you need:
‹ An available AC constant power source
‹ A 4-conductor switch hook-up cable (4-conductor bell wire,
communication or category 5 cable is typically used for long runs)
‹ Cat 5, multi-conductor unshielded, or similar type electronic cable
can be used to connect the 3-button switch to the LVC. The
recommended wire gauge is 20 to 24 AWG. Use plenum-rated
cable when required.
Making the connection
The AVS has two J-boxes located on the audience right side of the case:
one is for AC power, and the other is for the switch control. Figure 3
illustrates the connections.
1. Connect the switch to the J-box on the side of the case
(audience right). Do NOT leave the switch installed in the case.
2. A parallel connection to an outboard audio-visual switching
network can be made at this time (optional). Use only momentary
switches for this option.
3. Use the switch to test the operation. Refer to the next section for
cautions.
AC power
STOP-Yellow
COMMON-White
UP-Red
DOWN-Black
4 conductor hook-up cable
20-24ga recommended,
Category 5 typically used
(NOT supplied)
3-button
momentary switch
Figure 3: Low voltage 3-button switch wiring
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Connecting the Screen Trigger Interface (STI) option
The optional low-voltage STI enables operation of the screen in conjunction
with a projector, tuner, VCR, cable box, or switched AC outlet.
Once the AC power outlet is installed near the screen, an electrician is not
needed to connect the screen trigger interface to the power source. Attach
the 12 V trigger wire (2 conductor 20-24 gauge) to the jack in the J-box as
shown in Figure 4.
To Projector
or
AC power source
Optional 12 VDC
transformer
with switch
Figure 4. Connecting the STI
OPERATING THE SCREEN
Use the switch or remote control to activate the screen. Do not block the
path of the door or screen when in motion.
WARNING!
When you lower or retract the screen, it will stop at its factory preset limit
and the door will close.
When operating the
screen:
The motor is designed to be used for short operations such as raising the
screen in preparation for viewing. The motor is not designed for continuous
duty. If the motor operates continually for more than a few minutes, it may
automatically shut off to prevent damage from overheating. If the motor
occasionally needs to be run more than normal, for example during initial
setup and positioning, allow time for the motor to cool down.
‹ Stand clear from
the screen when it
is in motion.
‹ Supervise
children and
animals when the
screen is in
motion.
In general, when a screen is not in use, you should store it in the fully
retracted position.
‹ Keep hands and
limbs away from
the door and arm
assemblies when
the unit is in
Caution
Do not operate the motor when any of the following occurs:
‹ The unit emits any smoke, heat, abnormal noise or
unusual odor.
operation.
‹ The unit is damaged in some way, such as damage
from a water leak.
If any of these situations occur, call a qualified service
person.
6
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ADJUSTING THE SCREEN EXTENSION
The extension and retraction limit switches have been preset at the factory.
In general, we advise you to avoid readjusting these switches.
In rare cases, to enable proper alignment of the displayed image on the
screen, you may need to adjust the extension of a screen. If adjustment to
the extension is necessary, carefully follow these instructions. Keep in mind
that incorrect adjustment can cause faulty operation.
Modifying the extension of the screen
It is possible to decrease the preset extension of a screen up to 3" (7.6 cm).
Do not attempt to modify a screen extension more than this recommended
amount. Do not increase the extension.
The limit switches are located on audience right of the case.
‹ The white limit switch adjusts the extended (open) screen
position.
‹ The yellow limit switch adjusts the fully retracted (closed)
position. Do not adjust this switch.
Yellow (do not
adjust)
To decrease the screen extension:
1. Ensure that the screen is in its fully retracted position, but with the
door open to access the limit switches.
White (adjusts
open screen
position)
2. Locate the white limit switch located on the audience right side of
the case. Use a screwdriver to turn the switch in a clockwise
direction.
Figure 5. Limit switches
Note: One complete turn of the switch will make approximately a
3/4" (2 cm) change in the screen’s stop position.
3. Activate the screen until it reaches the newly reduced stop
position.
Once you have made the adjustment, whenever you extend the screen, it
will automatically stop at the new position.
Caution
Improper adjustment of the limit switches can cause
irreparable damage to a screen itself, resulting in voiding
the factory warranty.
The yellow limit switch retracts the screen further into the
case. Adjusting it is not advised.
Incorrect adjustment of the limit switch can cause the arms
to lock.
Be sure the screen retracts fully or the door will close on it,
and damage the screen.
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SCREEN CARE AND CLEANING
With reasonable care, you can expect many years of trouble-free use of
your Stewart projection screen.
We encourage you to keep your screen clean. To protect your screen when
it is not in use, store it in the fully retracted position.
Avoid getting any foreign material on the screen, as cleaning may prove
very difficult. It may not be possible to remove scratches, paint, ink, etc.
General maintenance
The surface of your screen is delicate. Special attention to these instructions
should be followed when cleaning.
Cautions
‹ A draftsman-style brush may be used to lightly whisk away any
loose dirt or dust particles. (This type of brush is usually available
at office supply stores.) Stewart Filmscreen has an optional
screen cleaning kit that contains the proper type of brush.
Contact your dealer if you would like to obtain this cleaning kit.
‹ Do not use
chemicals or
solvents to clean
the fabric.
‹ Do not allow
debris or
‹ Particles left on the screen when it is retracted into the case may
form an impression on the screen surface. Periodically wipe the
back of the screen with a clean damp cloth.
particles to fall
into the screen
housing.
‹ For tougher spots, use a solution of mild detergent and water.
Rub lightly using a sponge. Blot with a damp sponge to absorb
excess water. Residual water marks will evaporate within a few
minutes. Let the screen air dry completely before retracting.
Do not use any other cleaning materials on the screen. Contact the factory
if you have questions about removing difficult spots.
Replacement parts and service
No user-serviceable parts are contained within the unit. Contact your dealer
or the factory if you require part replacement or service.
PRODUCT WARRANTY
This warranty covers defects in materials and workmanship for a period of
one (1) year from the date of installation, not to exceed fifteen (15) months
from the date of shipment, provided this product is installed in a normal
environment and maintained according to written instructions in the product
Owner’s Manual. Stewart Filmscreen warrants against loss of usefulness,
discoloration or deterioration of optical quality within the warranty period as
a result of manufacturing or material defects.
A factory authorized returned screen arriving prepaid to our facility for
inspection and proved defective due to an inherent manufacturing fault will
be repaired or replaced by Stewart Filmscreen Corp. This warranty
expressly does not cover any costs of removal, installation, framing, or other
incidental costs to replacing the screen or returning it to the manufacturer.
Should you encounter a perceived product fault or problem, contact your
dealer regarding application of this warranty.
8
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TROUBLESHOOTING
Refer to the following guidelines if you encounter a difficulty in the
operation of your Stewart Filmscreen. Problems related to electrical or
motor function may require a qualified service person or electrician.
Should you have a problem that is not addressed here, call the Stewart
Filmscreen Corporation.
Problem description
Probable cause
Action to take
Screen will not operate.
Door will not operate.
No AC power available.
Check to see if the circuit breaker has
switched off. Reset if needed.
Outboard switching problem.
Check outboard switching apparatus.
Check voltage availability. Contact an
electrician.
Screen will not roll up or down
(even though power is available).
Bad connection at switch.
Have an electrician or qualified service
person check the connection as follows:
Polarity of STI line may be bad.
· If you have a low voltage control unit,
check switch-line connections.
· If you have a screen trigger interface,
check line connections, or the mini-plugs
at the screen input or projector output.
Check 12V DC line for correct polarity.
Screen roller chatters when
power is activated.
Can be caused by voltage drop, bad Have an electrician or qualified service
connections, or a defective switch.
person check all hook-ups including all
outboard wiring.
Unit hums in retract mode.
The screen batten is retracting too
far into the case. Failure to correct
can damage motor and screen.
Do not use the unit until this
problem is resolved.
Have a qualified service person adjust the
yellow limit switch. Turn the adjusting screw
clockwise.
Screen drops when retracted
(grinding noise occurs).
Drop in voltage.
Screen motor requires full voltage. Have an
electrician or qualified service person check
available voltage.
Screen continues past fully
extended stop position.
White limit switch is out of
adjustment.
Readjust the white limit switch. See p. 7 of
this manual.
Batten retracts too far into case.
Yellow limit switch out of
Have a qualified service person readjust the
yellow limit switch. See p. 7 of this manual.
adjustment. Failure to correct can
damage motor and screen. Do not
use the unit until this problem is
resolved.
Motor shuts off. Motor has been Motor is designed for short
Allow the motor to cool down. Complete
in use for more than 2 minutes.
operations (lowering and retracting), cooling can take an hour or more. Heat
not continuous duty. Longer gain is cumulative and takes time to
operation, such as during setup and dissipate. If motor use is initiated before it
positioning, causes the motor to
overheat and shut off.
has cooled completely, the motor will shut
down again when it reaches maximum
temperature.
Any controller (e.g., STI, LVC,
etc.) fails to operate motor.
Dirt, finger prints, marks, etc. on
screen surface.
Improper handling of screen.
Brush off or use a mild detergent solution
with clean rag or cotton swab. See p. 8 of
this manual.
Indentations appear on screen
surface.
Debris or particles adhering to
screen due to static cling.
Check back of screen; gently brush debris
away by hand. See p. 8 of this manual.
Debris or particles may have fallen
into the housing.
Automatic Vertical Screen: Owner’s Manual
9
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‹
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