Your projector is designed and tested to meet the latest standards for safety of
information technology equipment. However, to ensure safe use of this product, it is
important that you follow the instructions mentioned in th user manual / installation
guide and marked on the product.
1.Please read the user manual / installation guide before you operate your projector. Save it for future reference.
2.Do not look straight at the projector lens during operation. The intense
light beam may damage your eyes.
3.Refer servicing to qualified service personnel.
4.Always open the lens shutter (if any) or remove the lens cap (if any)
when the projector light source is on.
5.The light source becomes extremely hot during operation.
6.In some countries. the line voltage is NOT stable. This projector is designed to
operate safely within a mains voltage between 100 to 240 volts AC, but could fail
if power cuts or surges of ±10 volts occur. In areas where the mains voltage
may fluctuate or cut out, it is recommended that you connect your
projector through a power stabilizer, surge protector or
uninterruptible power supply (UPS).
7.Do not block the projection lens with any objects when the projector is under
operation as this could cause the objects to become heated and deformed or
even cause a fire. To temporarily turn off the light source, use the blank function.
8.Do not operate light sources beyond the rated light source life.
9.Do not place this product on an unstable cart, stand, or table. The product may
fall sustaining serious damage.
10. Do not attempt to disassemble this projector. There are dangerous high voltages
inside which may cause death if you should come into contact with live parts.
Under no circumstances should you ever undo or remove any other covers.
Refer servicing only to suitably qualified professional service personnel.
11. Do not block the ventilation holes.
- Do not place this projector on a blanket, bedding or any other soft surface.
- Do not cover this projector with a cloth or any other item.
- Do not place inflammables near the projector.
If the ventilation holes are seriously obstructed. overheating inside the projector
may result in a fire.
12. Do not stand the projector on end vertically. Doing so may cause the projector
to fall over, causing injury or resulting in damage to the projector.
13. Do not step on the projector or place any objects upon it. Besides probable
physical damage to the projector, doing so may result in accidents and possible
injury.
14. When the projector is under operation, you may sense some heated air and
odor from its ventilation grill. It is a normal phenomenon and not a product
defect.
15. 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's power outlet and call BenQ to have the projector serviced.
Important safety instructions3
16. This apparatus must be earthed.
Risk Group 2
1.According to the classification of
photobiological safety of light
sources and light source systems,
this product is Risk Group 2, IEC
62471-5:2015.
2.Possibly hazardous optical
radiation emitted from this
product.
3.Do not stare at operating light
source. May be harmful to the
eyes.
4.As with any bright source, do not
stare into the direct beam.
The projector's light source unit uses a
laser.
Laser Caution
(For China and other regions) This
product belongs to CLASS 1 laser
product and complies with IEC 60825-1
:2014.
(For north America) This product
belongs to CLASS 2 laser product.and
complies with IEC 60825-1:2007.
LASER RAOIATION, DO NOT STARE
INTO BEAM, CLASS 2 LASER
PROOUCT.
(For north America)
(For other regions)
CAUTION
LASER RADIATION DO NOT
STARE INTO BEAM
WAVELENGTH: 450~460 mm
PULSE DURATION: 1.09 ms
MAX OUTPUT: 0.119 mJ
CLASS II LASER PRODUCT
This product complies with 21 CFR 1040.10 and
1040.11 except for deviations pursuant to Laser
Notice No. 50, dated June 24, 2007.
LASER RADIATION DO NOT
STARE INTO BEAM
WAVELENGTH: 450~460 mm
PULSE DURATION: 1.09 ms
MAX OUTPUT: 0.119 mJ
CLASS 2 LASER PRODUCT
IEC/EN 60825-1:2007
for USA only
17. Do not place this projector in any of the following environments.
- Space that is poorly ventilated or confined. Allow at least 50 cm clearance from walls and
free flow of air around the projector.
- Locations where temperatures may become excessively high, such as the inside of a car
with all windows rolled up.
- Locations where excessive humidity, dus, or cigarette smoke may contaminate optical
components, shorten the projector's life span and darken the image.
- Locations near fire alarms
- Locations with an ambient temperature above 40°C / 104°F
- Locations where the altitudes are higher than 3000 m (10000 feet).
Important safety instructions4
IEC/EN 60825-1:2014
IEC 6247I-5:2015 RG2
Introduction
Projector features
This model is one of the best projectors available in the world. You can enjoy the best
video quality across various devices such as PC, laptop, DVD and VCR even document
camera to bring all possibility to life.
The projector offers the following features.
• 2D keystone for easy horizontal and vertical keystone correction allows you to
project a rectangular image from any angle
• Corner Fit allows you to adjust four corners of the projected image
• Equipped with HDMI & MHL connection supporting HDCP
• Dimming Mode starts your dynamic power saving
• Wall color correction allowing projection on surfaces of several predefined
colors
• Quick auto search speeding up the signal detecting process
• 3D color management allowing color adjusents to your liking
• Presentation timer for better control of time during presentations
• One-key auto-adjustment to display the best picture quality
• Component HDTV compatibility (YP
• The apparent brightness of the projected image will vary depending on the
ambient lighting conditions, selected input signal contrast/brightness settings,
and is proportional to projection distance.
bPr)
Introduction 5
Shipping contents
Carefully unpack and verify that you have all of the items shown below. If any of these
items are missing, please contact your place of purchase.
Standard accessories
The supplied accessories will be suitable for your region, and may differ from those
illustrated.
*The warranty card is only supplied in some specific regions. Please consult your
dealer for detailed information.
15. COMPO 1/COMPO 2
Not operational on this projector.
Introduction10
16. HDMI 1/HDMI 2
Test key acts as
Quick Install key.
Displays HDMI signal.
17. Auto
Automatically determines the best
picture timings for the displayed image.
18. SOURCE
Displays the source selection bar.
19. LASER
Emits visible laser pointer light for
presentation purposes.
20. BRIGHT
Adjusts the brightness of the image.
21. CONTRAST
Adjusts the degree of difference
between dark and light in the image.
22. Mute
Toggles projector audio between on
and off.
23. Aspect
Selects the display aspect ratio.
24. LAMP MODE
Displays the light mode selection bar
(Normal/Economic/Dimming).
Operating the laser pointer
The Laser Pointer is a
presentation aid for
professionals. It emits red
colored light when you press it
and the indicator lights up red.
The laser beam is visible. It is
necessary to press and hold
LASER for continuous output.
Do not look into the laser light
window or shine the laser light
beam on yourself or others. See
the warning messages on the back
of the remote control prior to
using it.
The laser pointer is not a toy. Parents
should be mindful of the dangers of laser
energy and keep this remote control out of
the reach of children.
*Remote control for Japan region
Introduction 11
Infra-Red (IR) remote control sensor is located on the front of the projector. The
A
p
p
r
o
x
.
3
0
°
remote control must be held at an angle within 30 degrees perpendicular to the
projector's IR remote control sensor to function correctly. The distance between the
remote control and the sensor should not exceed8 meters (~ 26 feet).
Make sure that there are no obstacles between the remote control and the IR sensor
on the projector that might obstruct the infra-red beam.
• Operating the projector from the front
Introduction12
Replacing the remote control battery
1.To open the battery cover, turn the remote control over to view its back, push
on the finger grip on the cover and slide it up in the direction of the arrow as
illustrated. The cover will slide off.
2.Remove any existing batteries (if necessary) and install two AAA batteries
observing the battery polarities as indicated in the base of the battery
comparent. Positive (+) goes to positive and negative (-) goes to negative.
3.Refit the cover by aligning it with the base and sliding it back down into position.
Stop when it clicks into place.
• Avoid excessive heat and humidity.
• There may be battery damage if the battery is incorrectly replaced.
• Replace only with the same or equivalent type recommended by the battery
manufacturer.
• Dispose of the used battery according to the battery manufacturer’s
instructions.
• Never throw a battery into a fire. There may be danger of an explosion.
• If the battery is dead or if you will not be using the remote control for a long
time, remove the battery to prevent damage to the remote control from
possible battery leakage.
Introduction 13
Positioning your projector
Choosing a location
Your room layout or personal preference will dictate which installation location you
select. Take into consideration the size and position of your screen, the location of a
suitable power outlet, as well as the location and distance between the projector and
the rest of your equipment.
Your projector is designed to be installed in one of two possible installation locations:
1.Front Ceiling
Select this location with the projector suspended
upside-down from the ceiling in front of the screen.
Use BenQ Projector Wall Mounting Kit come with the
box to mount your projector on the wall.
Set Front Ceiling in the SYSTEM SETUP: Basic
> Projector Installation menu after you turn the
projector on.
2.Rear Ceiling
Select this location with the projector suspended
upside-down from the ceiling behind the screen.
Note that a special rear projection screen and the
BenQ Projector Wall Mounting Kit are required for
this installation location.
Set Rear Ceiling in the SYSTEM SETUP: Basic >
Projector Installation menu after you turn the projector on.
You can also use QUICK INSTALL key on the remote
control to select projector’s location.
Positioning your projector14
Obtaining a preferred projected image size
V
M
W
F
h
X
a
D
30 mm
Scale value = D
Center
Plate height 260 mm
With cover 269 mm
Ceiling height (H)
=30mm+ Plate
height +V+h+F
Thickness of the screen
Image center
Projection dimensions
• Installation distance D is measured from the projector rear side to the wall
surface, which is also indicated on the scale of the wall mount.
• Projection distance a is measured from the projector rear side to the projection
surface.
• Vertical offset V is measured from the bottom edge of the wall plate to the top
edge of screen.
Positioning your projector 15
Image adjustment area
Center: 0
Center: 0
Adjustment area
-1.5 cm
+1.5 cm
+3.5 cm
-3.5 cm
M
h
W
LX890UST
The screen aspect ratio is 4:3 and the projected picture is in a 4:3 aspect ratio.
a. base on an image 762 mm from the floor, if the image is lower, the min ceiling height is reduced by the
measurement.
b. Assume the thickness of projection screen(X) is 0 mm.
c. Assume the thickness of projection screen(X) is 30 mm.
All measurements are approximate and may vary from the actual sizes. BenQ
recommends that if you intend to permanently install the projector, you should
physically test the projection size and distance using the actual projector in situ
before you permanently install it, so as to make allowance for this projector's
optical characteristics. This will help you determine the exact mounting position so
that it best suits your installation location.
Positioning your projector 17
Mounting the projector
If you intend to mount your projector, we strongly recommend that you use a proper
fitting BenQ projector mounting kit and that you ensure it is securely and safely
installed.
If you use a non-BenQ brand projector mounting kit, there is a safety risk that the
projector may fall down due to an improper attachment through the use of the wrong
gauge or length screws.
Before mounting the projector
• Use BenQ Projector Wall Mounting Kit come with the package. Please refer to
the User manual in the box of wall mount kit for installation details.
• BenQ recommends that you also purchase a separate Kensington lock compatible
security cable and attach it securely to both the Kensington lock slot on the
projector and the base of the mounting bracket. This will perform the secondary
role of restraining the projector should its attachment to the mounting bracket
become loose.
• Ask your dealer to install the projector for you. Installing the projector on your
own may cause it to fall and result in injury.
• Take necessary procedures to prevent the projector from falling off such as during
an earthquake.
• The warranty doesn’t cover any product damage caused by mounting the
projector with a non-BenQ brand projector mounting kit.
• Consider the surrounding temperature where the projector is ceiling/wall
mounted. If a heater is used, the temperature around the ceiling may be higher
than expected.
• Read the user manual for the mounting kit about the range of torque. Tightening
with torque exceeding the recommended range may cause damage to the
projector and subsequently falling off.
• Make sure the power outlet is at an accessible height so that you can easily shut
down the projector.
Install the projector on the projector wall mount
1.Slide the projector into the wall mount.
Positioning your projector18
2.Adjust the Vertical Tilt/Horizontal Roll/Horizontal Rotation to adjust screen
A
B
A
B
A
B
A
B
A
B
A
B
Adjustment buttons
Adjustment buttons
Adjustment buttons
Adjustment
directions
Adjustment direct ions
Adjustment directions
A
B
A
B
A
B
d
Adjustment directions
alignment and image position.
3.Adjust The Forward/Backward Slide to reduce/enlarge the image.
Positioning your projector 19
Connection
Smart device
PointWrite kit
Speakers
A/V device
Monitor
Notebook or
desktop computer
1.VGA cable
2.VGA to DVI-A cable
3.Audio cable
4.S-Video cable
5.Video cable
6.Audio L/R cable
7.Component Video to VGA (D-Sub)
adapter cable
8.HDMI cable
9.USB cable
10. HDMI dongle (QCast, QCast Mirror,
etc.)
11. USB cable (A to micro B type) connect
to HDMI dongle for power supply
When connecting a signal source to the projector, be sure to:
1.Turn all equipment off before making any connections.
2.Use the correct signal cables for each source.
3.Ensure the cables are firmly inserted.
1
2
11
Connection20
458
33
3
7
6
10
9
1
10
8
9
• In the connections shown above, some cables may not be included with
the projector (see "Shipping contents" on page 6). They are
commercially available from electronics stores.
• The connection illustrations are for reference only. The rear connecting jacks
available on the projector vary with each projector model.
• Many notebooks do not turn on their external video ports when connected to a
projector. Usually a key combo like FN + F3 or CRT/LCD key turns the external
display on/off. Locate a function key labeled CRT/LCD or a function key with a
monitor symbol on the notebook. Press FN and the labeled function key
simultaneously. Refer to your notebook's documentation to find your notebook's
key combination.
• The output signal for MONITOR OUT jack only works when the input signal
comes from PC IN jack.
• If you wish to use this connection method when the projector is in standby
mode, make sure the MONITOR OUT function is turned on in the SYSTEM
SETUP: Advanced > Standby Settings menu. See "Standby Settings" on page 61
for details.
Connecting Video source devices
You need only connect the projector to a Video source device using just one of the
above connecting methods, however each provides a different level of video quality.
The method you choose will most likely depend upon the availability of matching
terminals on both the projector and the Video source device as described below:
Te r m i n a lPicture quality
HDMI 1/HDMI 2/MHL
HDMI 1/HDMI 2/MHL
Best
PC IN
Component Video
Better
S-VIDEO
S-Video
Good
VIDEO
Video
Normal
Connecting audio
The projector has built-in mono speaker(s) which are designed to provide basic audio
functionality accompanying data presentations for business purposes only. They are
not designed for, nor intended for stereo audio reproduction use as might be
expected in home theater or home cinema applications. Any stereo audio input (if
Connection 21
provided), is mixed into a common mono audio output through the projector
speaker(s).
The built-in speaker(s) will be muted when the AUDIO OUT jack is connected.
If the selected video image is not displayed after the projector is turned on and the
correct video source has been selected, check that the Video source device is turned
on and operating correctly. Also check that the signal cables have been connected
correctly.
Connecting smart device
The projector can project the content directly from a smart device by using a wireless
dongle.