BenQ Projector MX823ST User Manual

Introduction 11
Remote control
1. ON/OFF
Toggles the projector between standby 
mode and on.
2. Source selection buttons 
(COMPUTER 1, COMPUTER 2, 
VIDEO, S-VIDEO, HDMI, 
NETWORK
)
Selects an input source for display.
3. Keystone/Arrow keys ( / Up,  /
Down)
Manually corrects distorted images 
resulting from an angled projection.
4. MENU/EXIT
Turns on the On-Screen Display (OSD) 
menu. Goes back to previous OSD menu, 
exits and saves menu settings.
5. Left/
Decreases the projector volume. 
6. MODE/ENTER...

Introduction 12
Controlling your smart device with the remote control
When the projector projects the content from your MHL compatible smart device, you 
can use the remote control to control your smart device. 
To enter the MHL mode, press and hold AUTO for 3 seconds. The following buttons are 
available for controlling your smart device: Arrow keys ( / Up,  / Down, 
Left, Right), MENU/EXIT, MODE/ENTER, MHL control buttons. 
To leave the MHL mode, press and hold AUTO for 3 seconds. 11. PAGE +/PAGE -...

Introduction 13
Remote control effective range
The remote control must be held at an angle within 30 degrees perpendicular to the 
projectors IR remote control sensor(s) to function correctly. The distance between the 
remote control and the sensor(s) should not exceed 8 meters (~ 26 feet).
Make sure that there are no obstacles between the remote control and the IR sensor(s) on 
the projector that might obstruct the infra-red 
beam.
Replacing the remote control batteries
1. To open the battery cover,...

Positioning your projector 14
Positioning your projector
Choosing a location
Your projector is designed to be installed in one of four possible installation locations: 
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.1. Front Table
Select this location with the...

Positioning your projector 15
Obtaining a preferred projected image size
The distance from the projector lens to the screen, the zoom setting, and the video format 
each factors in the projected image size.
Projection dimensions 
Refer to Dimensions on page 58 for the center of lens dimensions of this projector before 
calculating the appropriate position.
MX823ST
The screen aspect ratio is 4:3 and the projected picture is 4:3
For example, if you are using an 120-inch screen, the recommended projection...

Positioning your projector 16
MW824ST
The screen aspect ratio is 16:10 and the projected picture is 16:10
For example, if you are using an 120-inch screen, the recommended projection distance is 
1267 mm and the vertical offset is 81 mm.
If your measured projection distance is 2.5 m (2500 mm), the closest match in the (b) 
Distance from screen column is 2533 mm. Looking across this row shows that a 240 
(about 6.1 m) screen is required.
All measurements are approximate and may vary from the actual...

Connection 17
Connection
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.
•  In the connections shown below, some cables may not be included with the projector (see Shipping 
contents on page 8). They are commercially available from electronics stores.
•  The connection illustrations below are for reference only. The rear connecting jacks...

Connection 18
•  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 notebooks documentation to find your notebooks key combination.
•  The D-Sub output only works when an appropriate D-Sub input is made to the COMPUTER-1...

Connection 19
Connecting smart devices
The projector can project the content directly from a MHL compatible smart device. Using 
a HDMI to Micro USB cable or a HDMI to Micro USB adaptor, you can connect your smart 
devices to the projector and then enjoy your content on the big screen.
Some smart devices may not be compatible to the cable that you use. Please consult the manufacturer of your 
smart device for detailed information.
Using a HDMI to Micro USB cable
1. Take a HDMI to Micro USB cable and...

Operation 20
Operation
Starting up the projector
1. Plug the power cord into the projector and into a 
power outlet. Turn on the power outlet switch 
(where fitted). Check that the POWER indicator 
light on the projector lights orange after power has 
been applied.
Please use the original accessories (e.g. power cord) only with the 
device to avoid possible dangers such as electric shock and fire.
2. Press  POWER or  ON to start the 
projector. As soon as the lamp lights up, a Power On Ring Tone will be...