IMPORTANT: Please read this User Guide to obtain important information on installing and using your product
in a safe manner, as well as registering your product for future service. Warranty information contained in this
User Guide will describe your limited coverage from ViewSonic Corporation, which is also found on our web site at
http://www.viewsonic.com in English, or in specific languages using the Regional selection box in the upper right
corner of our website. “Antes de operar su equipo lea cu idadosamente las instrucciones en este manual”
Model No. VS18318 / VS18319
Model Name: LS920WU / LS921WU
Thank you for choosing ViewSonic®
As a world-leading provider of visual solutions, ViewSonic® is dedicated to exceeding
the world’s expectations for technological evolution, innovation, and simplicity.
At ViewSonic®, we believe that our products have the potential to make a positive
impact in the world, and we are confident that the ViewSonic® product you have
chosen will serve you well.
Once again, thank you for choosing ViewSonic®!
Safety Precauons
Please read the following Safety Precautions before you start using the projector.
• Keep this user guide in a safe place for later reference.
• Read all warnings and follow all instrucons.
• Allow at least 20“ (50 cm) clearance around the projector to ensure proper
venlaon.
• Place the projector in a well-venlated area. Do not place anything on the
projector that prevents heat dissipaon.
• Do not place the projector on an uneven or unstable surface. The projector may
fall over, causing personal injury or projector malfuncon.
• Do not use if the projector is lted at an angle of more than 10° degrees le or
right, nor at an angle of more than 15° degrees forwards or backwards.
• Do not look straight at the projector lens during operaon. The intense light
beam may damage your eyes.
• Do not block the projecon lens with any objects when the projector is under
operaon as this could cause objects to become heated and deformed or even
cause a re.
• Do not aempt to disassemble the projector. There are dangerous high voltages
inside which may cause death if you should come into contact with live parts.
• When moving the projector, be careful not to drop or bump the projector on
anything.
• Do not place any heavy objects on the projector or connecon cables.
• Do not stand the projector on end vercally. Doing so may cause the projector to
fall over, causing personal injury or projector malfuncon.
• Avoid exposing the projector to direct sunlight or other sources of sustained
heat. Do not install near any heat sources such as radiators, heat registers,
stoves, or other devices (including ampliers) that may increase the temperature
of the projector to dangerous levels.
• Do not place liquids near or on the projector. Liquids spilled into the projector
may cause it to fail. If the projector does become wet, disconnect it from the
power supply and call your local service center to have the projector serviced.
• When the projector is under operaon, you may sense some heated air and odor
from its venlaon grill. It is a normal operaon and not a defect.
3
• Do not aempt to circumvent the safety provisions of the polarized or
grounding-type plug. A polarized plug has two blades with one wider than the
other. A grounding-type plug has two blades and a third grounding prong. The
wide and third blade are provided for your safety. If the plug does not t into
your outlet, obtain an adapter and do not aempt to force the plug into the
outlet.
• When connecng to a power outlet, DO NOT remove the grounding prong.
Please ensure grounding prongs are NEVER REMOVED.
• Protect the power cord from being treaded upon or pinched, parcularly at the
plug, and at the point where it emerges from the projector.
• In some countries, the voltage is NOT stable. This projector is designed to
operate safely within a voltage between 100 to 240 volts AC, but could fail if
power cuts or surges of ±10 volts occur. In areas where voltage may uctuate
or cut out, it is recommended that you connect your projector through a power
stabilizer, surge protector, or uninterruptable power supply (UPS).
• If smoke, an abnormal noise, or a strange odor is present, immediately switch
the projector o and call your dealer or ViewSonic®. It is dangerous to connue
using the projector.
• Use only aachments/accessories specied by the manufacturer.
• Disconnect the power cord from the AC outlet if the projector is not being used
for a long period of me.
• Refer all servicing to qualied service personnel.
CAUTION: Possibly hazardous optical radiation is emitted from this product. As
with any bright light source, do not stare into the beam, RG2 IEC 624715:2015
Extending Light Source Life ................................................................................... 71
7
Introduction
Package Contents
NOTE: The power cord and video cables included in your package may vary depending
on your country. Please contact your local reseller for more informaon.
8
Product Overview
MENU
BLANK
EXIT
ENTER
COLOR
MODE
Projector
Controls and Functions
Lens shift
(up/down)
Lens shift
(left/right)
Remote IR sensor
Focus Ring
Zoom Ring
KeyDescription
Power key/Remote IR sensor
Power
Indicator Light
Projection Lens
Temperature
Indicator Light
Light Source
Indicator Light
[] Power
[///] Keystone
Keys
[ / //]
Left/Right/Up/Down
Toggles the projector between standby mode and Power On.
Manually corrects distorted images resulting from an angled
projection.
Selects the desired menu items and makes adjustments when
the On-Screen Display (OSD) Menu is activated.
Menu/ExitTurns on or off the On-Screen Display (OSD) Menu.
SourceDisplays the input source selection bar.
(Help)
Displays the HELP menu with a long press for 3 seconds.
BlankHides the screen picture.
EnterEnacts the selected On-Screen Display (OSD) Menu item when
the OSD Menu is activated.
[] Corner Adjustment
Displays the Corner Adj. menu when the OSD menu is not
activated.
Color ModeDisplays the color mode selection bar.
9
Connection Ports
1
AC Power Cord Inlet
Ceiling Mount Holes
2
Security Slot
Security Bar
36
48
5
7
9
10
11
1213
15
14
16
Adjuster Foot
PortDescription
[1] HDMI 1HDMI port.
[2] HDMI 2HDMI port.
[3] USB 5V/1.5A OUT (Service) USB Type A port for power supply and serivce.
[4] HDBase THDBaseT port.
[5] VIDEOComposite video port.
[6] S-VIDEOS-Video port.
[7] AUDIO IN (R)Audio signal (right) input socket.
[8] AUDIO IN (L)Audio signal (left) input socket.
[9] COMPUTER INRGB (PC) signal input socket.
[10] MONITOR OUTRGB (PC) signal output socket.
[11] RS-232RS-232 control port.
[12] RJ-45LAN port.
[13] AUDIO INAudio signal input socket.
[14] AUDIO OUTAudio signal output socket.
[15] 3D VESA3D VESA port.
[16] 12V OUT12V DC output terminal.
10
Remote Control
Controls and Functions
Button
Left/ Right
Up/ Down
Description
Selects the desired menu
items and makes adjustments.
Button
On/Off
COMP
HDMI 1
HDMI 2
Auto Sync
Source
[///]
Keystone Keys
Enter
(Corner
adjustment)
Description
Toggles between standby
mode and Power On.
Selects the source from
the COMPUTER IN port for
display.
Selects the source from the
HDMI 1 port for display.
Selects the source from the
HDMI 2 port for display.
Automatically determines
the best picture timings for
the displayed image.
Displays the source selection
bar.
Manually corrects distorted
images resulting from an
angled projection.
Enacts the selected OSD
Menu item.
Displays the Corner Adj.
menu when the OSD menu is
not activated.
Menu
(Laser)
Exit
Aspect
Freeze
Pattern
Blank
PgUp (Page Up)/
PgDn (Page
Down)
(Presentation
Timer)
Eco Mode
(Volume Up)
(Volume
Down)
(Mute)
Color Mode
(INFORMATION)
Network
Turns on/off the On-Screen
Display (OSD) Menu or goes
back to previous OSD Menu.
Emits visible laser pointer light
for presentation purposes.
Exits and saves menu
settings.
Displays the aspect ratio
selection bar.
Freezes the projected image.
Displays embedded test
pattern.
Hides the screen picture.
Operates your display
software program (on
a connected PC) which
responds to page up/down
commands (like Microsoft
PowerPoint).
NOTE: Only available when
a PC input signal is
selected.
Displays the
Presentation Timer menu.
Selects the Eco mode.
Increases the volume level.
Decreases the volume level.
Toggles audio between on
and off.
Displays the color mode
selection bar.
Magnifies the projected
picture size.
Reduces the projected
picture size.
Displays the INFORMATION
menu.
Displays the
LAN Control Settings menu.
11
Remote Control Effective Range
To ensure proper function of the remote control
follow the steps below:
1. The remote control must be held at an angle
within 30° perpendicular to the projector’s IR
remote control sensor(s).
2. The distance between the remote control and
Approx. 30°
the sensor(s) should not exceed 8 m (26 ft.)
NOTE: Refer to the illustration for the location of
the infrared (IR) remote control sensor(s).
Replacing the Remote Control Batteries
1. Remove the battery cover from the rear of the remote control by pressing the
finger grip and sliding it down.
2. Remove any existing batteries (if necessary) and install two AAA batteries.
NOTE: Observe the battery’s polarities as indicated.
3. Replace the battery cover by aligning it with the base and pushing it back into
position.
NOTE:
• Avoid leaving the remote control and batteries in excessive heat or a humid
environment.
• Replace only with the same or equivalent type recommended by the battery
manufacturer.
• Dispose of the used batteries according to the manufacturer’s instructions and
local environment regulations for your region.
• If the batteries are drained or if you will not be using the remote control for an
extended period of time, remove the batteries to avoid damage to the remote
control.
12
Initial Setup
This section provides detailed instructions for setting up your projector.
Choosing a Location
Personal preference and room layout will decide the installation location. Consider
the following:
• Size and Position of your screen.
• Location of a suitable power outlet.
• Location and Distance between the projector and other equipment.
The projector is designed to be installed in one of the following locations:
1. Front
The projector is placed near the floor in
front of the screen.
2. Front Ceiling
The projector is suspeneded upsidedown from the ceiling in front of the
screen.
3. Rear Ceiling
The projector is suspended upside-down
from the ceiling behind the screen.
NOTE: A special rear projection screen
is required.
4. Rear
The projector is placed near the floor
behind the screen.
NOTE: A special rear projection screen
is required.
13
Projection Dimensions
NOTE: See “Specifications” on page 62 for the native display resolution of this
NOTE: There is a 3% tolerance among these numbers due to optical component
variations. It is recommended to physically test the projection size and
distance before permanently installing the projector.
16
Mounting the Projector
151
NOTE: If you buy a third-party mount, please use the correct screw size. Screw size
can vary depending on the thickness of the mounting plate.
1. To ensure the most secure installation, please use a ViewSonic® wall or ceiling
mount.
2. Ensure the screws used to attach a mount to the projector meet the following
specifications:
• Screw type: M4
• Screw length: 12.8 mm ~ 15.8 mm
304
NOTE:
• Avoid installing the projector near a heat source.
• Keep at least a 10 cm gap between the ceiling and the bottom of the
projector.
17
Preventing Unauthorized Use
The projector has several built-in security features to prevent theft, access, or
accidental setting changes.
Using the Security Slot
To help prevent the projector from being stolen, use a security slot locking device
to secure the projector to a fixed object.
Below is an example of setting up a security slot locking device:
NOTE: The security slot can also be used as a safety anchor if the projector is
mounted to the ceiling.
18
Using the Password Function
To help prevent unauthorized access or use, the projector offers a password
security option. The password can be set through the On-Screen Display (OSD)
Menu.
NOTE: Make note of your password, and keep it in a safe place.
Setting a Password
1. Press Menu to open the OSD Menu and go to: SYSTEM > Security Settings and
press Enter.
2. Highlight Power On Lock and select
On by pressing / .
3. As pictured to the right, the four
arrow keys (, , , ) represent
4 digits (1, 2, 3, 4). Press the arrow
keys to enter a six digit password.
4. Confirm the new password by re-entering the new password. Once the password
is set, the OSD Menu will return to the Security Settings page.
5. Press Exit to leave the OSD Menu.
NOTE: Once set, the correct password must be entered every time the projector is
started.
19
Changing the Password
1. Press Menu to open the OSD Menu and go to: SYSTEM > Security Settings >
Change Password.
2. Press Enter, the message, ‘INPUT CURRENT PASSWORD’ will appear.
3. Enter the old password.
If the password is correct, the message, ‘INPUT NEW PASSWORD’ will
appear.
If the password is incorrect, a password error message will appear for 5
seconds followed by the message, ‘INPUT CURRENT PASSWORD’. You can
try again or press Exit to cancel.
4. Enter a new password.
5. Confirm the new password by re-entering the new password.
6. To leave the OSD Menu, press Exit.
NOTE: The digits being input will display as asterisks (*).
Disabling the Password Function
1. Press Menu to open the OSD Menu and go to: SYSTEM > Security Settings >
Power On Lock.
2. Press / to select Off.
3. The message, “Input Password” will appear. Enter the current password.
If the password is correct, the OSD Menu returns to the Password page with
“Off” shown in the row of Power On Lock.
If the password is incorrect, a password error message will appear for 5
seconds followed by the message, ‘INPUT CURRENT PASSWORD’. You can
try again or press Exit to cancel.
NOTE: Please keep the old password, as you will need it to reactivate the password
function.
20
Forgetting the Password
If the password function is activated, you will
be asked to enter the six-digit password every
time you turn on the projector. If you enter the
wrong password, the password error message,
as pictured to the right, will appear for 5
seconds, and the message ‘INPUT PASSWORD’
follows.
You can retry or if you do not remember, you can use the “Password Recall
Procedure”.
NOTE: If you enter an incorrect password 5 times in succession, the projector will
automatically shut down for a short time.
Password Recall Procedure
1. When the message ‘INPUT CURRENT
PASSWORD’ appears, press and hold
Auto Sync for 3 seconds. The projector will
display a coded number on the screen.
2. Write down the number and turn off your
projector.
3. Seek help from the local service center to
decode the number. You may be required to
provide proof of purchase documentation to
verify that you are an authorized user of the
projector.
21
Locking the Control Keys
With the control keys on the projector locked, you can prevent your settings from
being changed accidentally (by children, for example).
NOTE: When the Panel Key Lock is On, no control keys on the projector will operate
except Power.
1. Press Menu to open the OSD Menu and go to: SYSTEM > Panel Key Lock.
2. Press / to select On.
3. Select Yes and press Enter to confirm.
4. To release panel key lock, press and hold on the projector for 3 seconds.
NOTE: You can also use the remote control to enter the SYSTEM > Panel Key Lock
menu and select Off.
22
Making Connections
This section guides you on how to connect the projector with other equipment.
Connecting to Power
1. Connect the power cord to the AC IN jack at the rear of the projector.
2. Plug the power cord into a power outlet.
NOTE: When installing the projector, incorporate a readily accessible disconnect
device in the xed wiring, or connect the power plug to an easily accessible
outlet near the unit. If a fault should occur during operaon of the projector,
use the disconnect device to switch o the power supply, or disconnect the
power plug.
23
Connecting to Video Sources
HDMI Connection
Connect one end of an HDMI cable to the HDMI port of your video device. Then
connect the other end of the cable to the HDMI 1 or HDMI 2 port of your projector.
S-Video Connection
Connect one end of an S-Video cable to the S-Video port of your video device. Then
connect the other end of the cable to the S-VIDEO port of your projector.
Composite Video Connection
Connect one end of a Video cable to the Video port of your video device. Then
connect the other end of the cable to the VIDEO port of your projector.
Connecting to Computer Sources
VGA Connection
Connect one end of a VGA cable to the VGA port of your computer. Then connect
the other end of the cable to the COMPUTER IN port of your projector.
NOTE: Some notebooks do not turn on their external displays automacally when
connected to a projector. You may have to adjust your notebook’s projecon
sengs.
VGA Out Connection
After establishing the VGA Connection, connect one end of a VGA cable to the VGA
port of your monitor. Then connect the other end of the cable to the MONITOR
OUT port of your projector.
Connecting to Audio
The projector is equipped with speakers, however, you can also connect external
speakers to the AUDIO OUT port of the projector.
NOTE: The audio output is controlled by the projector’s Volume and Mute sengs.
Connecting to HDBaseT Device
HDBaseT is a technology to transmit image signal through a LAN cable. Connect
Cat5e/Cat6 cable from HDBaseT TX Box for HDBaseT signal received.
Video Signal - Connect it to HDBaseT output equipment (Such as high-definition TV
source, Blu-ray Player....etc).
24
RS-232 Function: When the projector connects to HDBaseT by RS-232
communication, the projector can be controlled with RS-232 commands from
the computer. For details of RS232 commands, refer to RS-232 Communication
command table.
HDBaseT best practice:
1. When in doubt, use shielded Cat6 with shielded plugs.
2. Use proper grounding.
3. Isolate HDBaseT cat cables from other signal types.
The connection illustrations below are for reference only. The connecting jacks
available on the projector vary with each projector model. Some cables may not
be included with the projector. They are commercially available from electronics
stores.
25
Operation
Turning the Projector On/Off
Starting Up the Projector
1. Press the Power buon to turn on the projector.
2. The light source will light up, and a “Power On/O Ring Tone” will play.
3. The Power Indicator Light stays green when the projector is On.
NOTE: To maintain light source life, once you turn the projector On, wait at least ve
(5) minutes before turning it o.
4. Turn on all of the connected equipment, i.e. notebook, and the projector will
start to search for an input source.
NOTE: If the projector detects an input source, the source informaon will appear. If
an input source is not detected, the message, ‘No Signal’ will appear.
First Time Activation
If the projector is activated for the first time, select your OSD language following
the on-screen instructions.
26
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