BenQ LH820ST Digital Projector User Guide

: October 30, 2023
: BenQ

Table of Contents

BenQ LH820ST Digital Projector
Product Information
Product Control terminals
Product Usage Instructions
Precautions
Cooling notice
Information
Installation
Dimensions
Using Instructions
Specifications
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BenQ LH820ST Digital Projector

Product Information

Notice: To ensure safe use of this product, please read the user manual for details before you operate your projector.

Risk Group 2

According to the classification of photobiological safety of light sources and light source systems, this product is Risk Group 2, IEC 62471-5:2015.
Possibly hazardous optical radiation emitted from this product.
Do not stare at operating light source. May be harmful to the eyes.
As with any bright source, do not stare into the direct beam.

Laser Caution

This product belongs to CLASS 1 consumer laser product and complies with IEC 608251:2014, EN 60825-1:2014/A11:2021 and EN 50689:2021.
Above laser caution is located on the bottom of this apparatus.
The projector’s light source unit uses a laser inside the beam.

Cooling Notice

Ventilation Air inlet

Caution for installation: For proper ventilation of the projector, make sure to leave some Air outlet space around the projector as shown in the illustration below:

Shipping Contents

Remote control
ON SOURCE PICTURE 2D KEYSTONE / UP VOLUME – / LEFT 2D KEYSTONE / Down BACK MUTE Projector ID code keys ZOOM+/ZOOMPAGE+/PAGE- Indicator OFF ASPECT QUICK INSTALL INFO LIGHT SOURCE VOLUME + / RIGHT OK AUTO MENU BLANK LIGHT 3D FREEZE

Product Control terminals

Installation
Projection dimensions
16:9 Screen diagonal
H W
Vertical Offset (A)*
Screen size
Diagonal Inch mm
H (mm)
Projection distance *Vertical offset (A)
W (mm)
Centerline of lens Screen

Product Usage Instructions

Read the user manual carefully before operating the projector to ensure safe use of the product.
Make sure to leave enough air outlet space around the projector for proper ventilation. Refer to the illustration in the user manual for proper installation.
Do not stare at the operating light source as it may be harmful to the eyes.
As with any bright source, do not stare into the direct beam.
Use the remote control to operate the projector.
Adjust the keystone, volume, and screen aspect ratio using the keys on the remote control.
Use the indicator keys to turn off the projector or switch between sources.
Use the zoom and page keys to adjust the size and position of the screen.
Use the menu key to access the projector’s settings and options.
Refer to the table of contents in the user manual for more detailed instructions and information.

Precautions

Notice: To ensure safe use of this product, Please read the user manual for details before you operate your projector.

Risk Group 2

According to the classification of photobiological safety of light sources and light source systems, this product is Risk Group 2, IEC 62471-5:2015.
Possibly hazardous optical radiation emitted from this product.
Do not stare at operating light source. May be harmful to the eyes.
As with any bright source, do not stare into the direct beam.
- The projector’s light source unit uses a laser.

Laser Caution

This product belongs to CLASS 1 consumer laser product and complies with IEC 60825- 1:2014, EN 60825-1:2014/A11:2021 and EN 50689:2021.
Above laser caution is located on the bottom of this apparatus

Caution

Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
Notice is given to supervise children and to never allow them to state into the projector beam at any distance from the projector.
Notice is given to use caution when using the remote control for starting the projector while in front of the projection lens.
Notice is given to the user to avoid the use of optional aids such as binoculars or telescopes inside the beam.

Cooling notice

Ventilation

Caution for installation

For proper ventilation of the projector, make sure to leave some space around the projector as shown in the illustration below:

Avoid using the projector in a poorly ventilated or confined space.

Information

Shipping contents

Remote control

Control terminals

Installation

Projection dimensions

The screen aspect ratio is 16:9 and the projected picture is in a 16:9 aspect ratio.
The vertical offset value is the vertical distance from the bottom edge of the image (when the projector is on a table, diagram on the left), or top edge of the image (when the projector is ceiling mounted, diagram on the right) to the centerline of lens.
Due to the lens optical characteristics, every projector has its vertical offset ratio. The vertical offset value normally gets larger while the projection distance increases.

Note

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.
To optimize your projection quality, we suggest doing the projection by following the values in the non-gray cells.
The values in the gray cells are for reference only.

Dimensions

Projector dimensions

410 mm (W) x 157.7 mm (H) x 272 mm (D)
Unit: mm

Ceiling/Wall mount installation diagram

Ceiling/Wall mount screw: M4
(Max L = 25 mm; Min L = 20 mm)
Unit: mm

Using Instructions

Specifications

Note: All specifications are subject to change without notice.

Optical

Resolution
- 1920 x 1080 1080p
Display system
- DLP® Chip
Lens
- F = 2.8, f = 7.46 mm
Offset
- 109%±3%
Zoom ratio
- Fixed
Light source
- Laser diode

Electrical

Power supply
- AC100–240V, 3.00 A, 50/60 Hz (Automatic)
Power consumption
- 360 W (Max); < 0.5 W for normal standby mode;
- <2W (When the Network function in the Standby Settings in on)

Mechanical

Weight
- 5.6 Kg + 100 g (12.3 lbs + 0.22 lbs)

Output terminals

RGB output
- D-Sub 15-pin (female) x 1
Speaker
- 10 watt x 1
Audio signal output
- PC audio jack x 1

Control

USB
- Type-A power supply 1.5 A x 1; Mini-B x 1
RS-232 serial control
- 9 pin x 1
IR receiver x 2
LAN control
- Wired (RJ45)

Input terminals

Computer input
- RGB input
- D-Sub 15-pin (female) x 2
Video signal input
- S-VIDEO
- Mini DIN 4-pin x 1
VIDEO
- RCA jack x 1
- SD/HDTV signal input
- Analog – Component
- (through RGB input)
- Digital – HDMI x 1
Audio signal input
- Audio in
- PC audio jack x 1
- Microphone audio jack x 1
- RCA audio jack (L/R) x 1

Environmental Requirements

Operating temperature
- 0°C–40°C at sea level
Operating relative humidity
- 10%–90% (without condensation)
Operating altitude
- 0–1499 m at 0°C–35°C
- 1500–3000 m at 0°C–30°C (with
- High Altitude Mode on)
Storage temperature
- -20°C–60°C at sea level
Storage humidity
- 10%–90% RH (without condensation)
Storage altitude
- 30°C@ 0~12,200m above sea level
Transporting
- Original packing or equivalent is recommended
Repairing
- Please visit below website and choose your country to find your service contact window.
- http://www.benq.com/welcome