BenQ LX820ST User manual
Quick Start Guide
Digital Projector
LX820ST / LW820ST
LX820STD / LW820STD (for China Only)
Notice
To ensure safe use of this product, Please read the user manual for details before you operate
your projector.
Caution - Use of control or adjustments or performance of procedures other than those
specified herein may result in hazardous radiation exposure.
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 IIIa laser product.and complies with
IEC 60825-1:2007.
LASER RADIATION
AVOID DIRECT EYE EXPOSURE
CLASS 3R LASER PROOUCT
(For north America)
(For other regions)
Above laser cautions are located on the
bottom of this apparatus
Cooling notice
LX820ST/LW820ST
Ventilation
LX820STD/LW820STD
Ventilation
• Avoid using the projector in a poorly ventilated or confined space.
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Air inlet
Air inlet Air outlet
Air outlet
70 cm
above
70 cm
above
70 cm
above
70 cm
above
30 cm
above
70 cm
above
Minimum 100 mm
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gnikcatS•gnilieC•
Air inlet
Air inlet Air outlet
Air outlet
70 cm
above
70 cm
above
70 cm
above
70 cm
above
30 cm
above
70 cm
above
Minimum 100 mm
Caution for installation
For proper ventilation of the projector, make sure to leave some
space around the projector as shown in the illustration below:
Caution for installation
For proper ventilation of the projector, make sure to leave some
space around the projector as shown in the illustration below:
Product information
Shipping contents
LX820ST/LW820ST LX820STD/LW820STD (for China Only)
Remote control
MENU
INFO
World Wide Region
OFF
ON
PC 1
HDMI 1
VIDEO
SOURCE
NETWORK
HDMI 2/MHL
ECO BLANK
LASER
MUTE
LIGHT MODE
QUICK INSTALL
FREEZE
KEYSTONE / UP
VOLUME - / LEFT VOLUME + / RIGHT
AUTO
BACK
MENU
INFO
MHL
ZOOM+/ZOOM- ASPECT
PICTURE
PAGE+/PAGE-
KEYSTONE / DOWN OK
Japan Region
POWER SOURCE
COMPUTER 1
*NETWORK
VIDEO
S-VIDEO
QCast
HDMI
UP
LEFT
OK
RIGHT
DOWN
BACK
MENU
AUTO
MHL
MUTE VOLUME -
VOLUME +
PAGE+/PAGE-
KEYSTONE
ASPECT
NETWORK
SETTING
FREEZE
*SMART ECO
ECO BLANK
QUICK INSTALL
Japan Region
ON OFF
PC
HDMI 1
VIDEO
HDMI 2
SOURCE
*NETWORK
OK
BACK AUTO
MHL
MUTE FREEZE
PAGE+/PAGE-
ZOOM+ / ZOOM-
INFO
ASPECT
MODE
*SMART ECO
QUICK INSTALL
*Not operational on this projector
KEYSTONE / UP
VOLUME - / LEFT
KEYSTONE / DOWN
VOLUME + / RIGHT
ECO BLANK
Control terminals
Installation
Projection dimensions
LX820ST/LX820STD
• The screen aspect ratio is 4:3 and the projected picture is in a 4:3 aspect ratio
H
WProjection distance
Center of lens
Screen
4:3 Screen diagonal
Offset
Screen size Projection distance
(mm)
Offset
(mm)
Diagonal H
(mm)
W
(mm)
Inch mm
60 1524 914 1219 790 77
70 1778 1067 1422 925 90
75 1905 1143 1524 995 96
80 2032 1219 1626 1060 102
85 2159 1295 1727 1130 109
90 2286 1372 1829 1200 115
95 2413 1448 1930 1265 122
100 2540 1524 2032 1335 128
105 2667 1600 2134 1405 134
110 2794 1676 2235 1472 141
120 3048 1829 2438 1600 154
LW820ST/LW820STD
• The screen aspect ratio is 16:10 and the projected picture is in a 16:10 aspect ratio
• 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.
H
WProjection distance
Center of lens
Screen
16:10 Screen diagonal
Offset
Screen size Projection distance
(mm)
Offset
(mm)
Diagonal H
(mm)
W
(mm)
Inch mm
60 1524 808 1292 665 49
70 1778 942 1508 780 57
75 1905 1010 1615 835 62
80 2032 1077 1723 895 66
85 2159 1144 1831 952 70
90 2286 1212 1939 1010 74
95 2413 1279 2046 1070 78
100 2540 1346 2154 1126 82
105 2667 1414 2262 1185 86
110 2794 1481 2369 1245 90
120 3048 1615 2585 1360 99
Dimensions
Projector dimensions
LX820ST/LW820ST
410 mm (W) x 158 mm (H) x 272 mm (D)
Unit: mm
Ceiling/Wall mount installation diagram
Unit: mm
272.0
410
100
158
131
87
8
81
Ceiling/Wall mount screw: M4
(Max L = 25 mm; Min L = 20 mm)
339.5
242.0
216.8
235.7
215.5
149.5
228.0
131.5
235.7
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