BenQ LW855UST Digital Projector User Guide
- June 12, 2024
- BenQ
Table of Contents
LW855UST Digital Projector
User Guide Digital Projector
Quick Start Guide
LW855UST/LW856UST
LW855UST Digital Projector
Notice on
laser
Caution – use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
Do not point laser or allow laser light to be directed or reflected toward
other people or reflective objects.
Direct or scattered light can be hazardous to eyes and skin.
There is a potential hazard of eye exposure to laser radiation if the included
instructions are not followed.
Do not allow to look into the projector beam at any distance from the
projector. An adult should supervise the children to prevent exposure risks.
Check that there is no one looking at the lens, when using the remote control
for starting the projector.
Do not look at the projected light using optical devices(binoculars,
telescopes, magnifying glasses, reflectors, etc).
Laser class
This Laser Product is designated as Class 1 and CONSUMER LASER
PRODUCT: EN 50689:2021 during all procedures of operation and complies
with IEC 60825-1:2014 and EN 60825-1:2014/A11:2021.
Laser parameters
| Wavelength | 449nm – 461nm (Blue) |
|---|---|
| Mode of operation | Pulsed, due to frame rate |
| Pulse width | 1.15ms |
| Pulse repetition rate | 120Hz |
| Maximum laser energy | 0.62mJ |
| Total internal power | >100w |
| Apparent source size | >10mm, at lens stop |
| Divergence | >100 mili Radian |
Projection dimensions
The
screen aspect ratio is 16:10 and the projected picture is 16:10.
LW855UST
Screen size (Diagonal)| Screen width (W)| Screen height (h)| Projection
distance (D)| Offset (H)| Scale
parameter| Distance between Wall plate &
---|---|---|---|---|---|---
inch| mm| inch| mm| inch| mm| inch| mm| inch| mm| mm| projection
screen (V)
80| 2023| 68| 1723| 42| 1077| II.23| 285.4| 11.42| 290.2| 513| 266.4
85| 2159| 72| 1831| 45| 1144| 12.72| 323.1| 11.98| 304.3| 550| 280.5
87| 2210| 74| 1874| 46| 1171| 13.31| 338.1| 12 20| 310.0| 565| 286.2
90| 2286| 76| 1939| 48| 1212| 14.20| 360.8| 12 54| 318.4| 588| 294.6
92| 2337| 78| 1982| 49| 1239| 14.80| 375.8| 12.76| 324.1| 603| 300.3
95| 2413| 81| 2046| 50| 1279| 15.69| 398.4| 13.09| 332.6| 626| 308.8
97| 2464| 82| 2089| 51| 1306| 16.28| 413.5| 13.32| 338.2| 641| 314.4
100| 2540| 85| 2154| 53| 1346| 17.17| 436.1| 13,65| 346.7| 663| 322.9
LH856UST
The screen aspect ratio is 16:9 and the projected picture is 16:9
Screen size (Diagonal)| Screen width (W)| Screen height (h)| Projection
distance (D)| Offset (H)| Scale parameter| Distance between Wall plate &
---|---|---|---|---|---|---
inch| mm| inch| mm| inch| mm| inch| mm| inch| mm| mm| projection screen (V)
89| 2261| 78| 1970| 44| 1108| 13.09| 332.5| 12.99| 330.0| 560| 306.2
90| 2286| 78| 1992| 44| 1121| 13.38| 339.8| 13.11| 333.0| 567| 309.2
95| 2413| 83| 2103| 47| 1183| 14.81| 376.3| 13.7| 347.9| 604| 324.1
97| 2464| 85| 2147| 48| 1208| 15.39| 390.9| 14.| 353.9| 618| 330.1
100| 2540| 87| 2214| 49| 1245| 16.25| 412.8| 14.29| 362.9| 640| 339.1
102| 2591| 89| 2258| 50| 1270| 16.83| 427.4| 14.52| 368.8| 655| 345.1
There is 5% tolerance among these numbers due to optical component variations.
BenQ recom mends that if you intend to permanently install the projector, you
should physically test the projection size and distance using the actual
projector 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 itbest suits your installation location.
It is recommended to adjust focus 15 minutes after powering on due to the
slight shifting of the lens from temperature changing.
The above numbers are approximate and may be slightly different from the
actual measurements. Only the recommended screen sizes are listed. If your
screen size is not in the table above, please contact your dealer for
assistance.
Limited lens shift specification (LW855UST only) 
Ceiling Mount Installation
(For wall mount installation information, please refer to the wall mount
installation guide in the wall mount box.) 3 I 7.2mm(W) x 208.0mm(H) x
376.4mm(D) 
Positioning your projector
Using the quick install
The
projector provides a hot key to set Projector Installation, Test Pattern, and
Keystone quickly. Press Quick Install on the remote control and press / to
select:
1.
Choosing a location
2. Use the
test pattern
3. Correct the image
It is
recommended to adjust focus 15 minutes after powering on due to the slight
shifting of the lens from temperature changing.
Specifications
All specifications are subject to change without notice.
Optical
Resolution
LW855UST…………………………………….. 1280 x 800 WXGA
LH856UST………………………………………… 1920 x 1080 1080p
Display system…………………………………. Single-chip DLP™ system
Lens………………………………………………….. F=2.5,f = 5.1 mm
Light source…………………………………………. Laser diodes
Electrical
Power supply……………….. AC100-240V, 2.0A 50-60 Hz (Automatic)
Power consumption……………….. 200W (Max); < 0.5W (Standby); <2W(When the network
function in the standby settings is on)
Mechanical
Weight………………………….. 14.7 Ibs (6.5 Kg) (without lens)
Output terminals
Speaker……………………………………………………….. 10 watt x 2
Audio signal output………………………………. PC audio jack x
Monitor Out………………………………………………….. D-Sub 15-pin (female) x1
Control
USB………………… Type-B mini USB (Optional for PointWrite kit)
Type-A power supply 1.5A
RS-232 serial control…………………….. 9 pin x 1
IR receiver x 1 (Front)
LAN control………………….. RJ45 x 1 (10/100Mbps)
Input terminals
Computer input
RGB input………………. D-Sub 15-pin (female) x 1 Digital – HDMI x 2
Audio signal input
Audio in
PC audio jack x 1
Microphone in jack x 1
Environmental Requirements
Temperature
Operating: 0°C—40°C at sea level
Storage: -20°C-60°C at sea level
Relative humidity
Operating: 10%—90% (without condensation)
Storage: |0%—-90% (without condensation)
Transporting
Original packing or equivalent is recommended.
Repairing
Please visit below website and choose your country to find your service
contact window.
http://www.beng.com/welcome
For setting the PointWrite kit on projector, please refer to the PointWrite manual in the kit box you purchase.
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References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>