BenQ Projector MX823ST User Manual

Operation 41
Description of each menu
Function Description
Wall ColorCorrects the projected picture’s color when the projection surface is 
not white. See Using Wall Color on page 29 for details.
Aspect RatioThere are several options to set the images aspect ratio depending on 
your input signal source. See Selecting the aspect ratio on page 27 
for details.
KeystoneCorrects any keystoning of the image. See Correcting keystone on 
page 22 for details.
Position
Displays the position adjustment page. To...

Operation 42
Function Description
3D 
This projector features a 3D function which enables you to enjoy the 
3D movies, videos, and sporting events in a more realistic way by 
presenting the depth of the images. You need to wear a pair of 3D 
glasses to view the 3D images.
3D Mode
The default setting is Auto and the projector automatically chooses 
an appropriate 3D format when detecting 3D contents. If the 
projector cannot recognize the 3D format, press /  to choose a 
3D mode.
When the 3D  function is...

Operation 43
Function Description
Picture ModePre-defined picture modes are provided so you can optimize your 
projector image set-up to suit your program type. See Selecting a 
picture mode on page 29 for details.
Reference 
ModeSelects a picture mode that best suits your need for the image quality 
and further fine-tune the image based on the selections listed on the 
same page below. See Setting the User 1/User 2 mode on page 29 
for details.
BrightnessAdjusts the brightness of the image. See...

Operation 44
Function Description
Quick Auto 
SearchSee Switching input signal on page 26 for details.
Color Space 
ConversionSee Changing Color Space on page 26 for details.
Presentation 
TimerReminds the presenter to finish the presentation within a certain time 
frame. See Setting the presentation timer on page 32 for details.
LanguageSets the language for the On-Screen Display (OSD) menus. See Using 
the menus on page 23 for details.
Projector 
InstallationThe projector can be installed on a ceiling...

Operation 45
Function Description
Operation 
Settings
Direct Power On
Allows the projector to turn on automatically once the power is fed 
through the power cord.
Signal Power On
Sets whether to turn the projector directly on without pressing   
POWER or ON when the projector is in standby mode and the 
signal is feed through the VGA cable.
Auto Power Off
Allows the projector to turn off automatically if no input signal is 
detected after a set period of time. See Setting Auto Power Off on 
page 50 for...

Operation 46
Function Description
High 
Altitude 
ModeA mode for operation in high altitude areas. See Operating in a high 
altitude environment on page 34 for details.
Audio 
SettingsSee Adjusting the sound on page 35 for details.
Lamp 
Settings
Lamp Mode
See Setting the Lamp Mode on page 50 for details.
Reset Lamp Timer
See Resetting the lamp timer on page 54 for details.
Equivalent Lamp
See Getting to know the lamp hour on page 50 for details on how the 
total lamp hour is calculated.
Security...

Operation 47
Function Description
Standby 
Settings
Network
Selecting On enables the function. The projector is able to provide the 
network function when it is in standby mode.
Monitor Out
Selecting On enables the function. The projector can output a VGA 
signal when it is in standby mode and the COMPUTER-1 jack is 
correctly connected to devices. See Connection on page 17 for how 
to make the connection.
Audio Pass Through
The projector can play sound when it is in standby mode and the 
corresponding...

Operation 48
Function Description
Current 
System 
Status
Source
Shows the current signal source.
Picture Mode
Shows the selected mode in the PICTURE menu.
Lamp Mode
Shows the current lamp mode.
Resolution
Shows the native resolution of the input signal.
3D Format
Shows the current 3D mode.
Color System
Shows input system format.
Equivalent Lamp
Displays the number of hours the lamp has been used.
Firmware Version
Shows the firmware version of your projector.
6. INFORMATION menu 

Maintenance 49
Maintenance
Care of the projector
Your projector needs little maintenance. The only thing you need to do on a regular basis 
is to keep the lens and case clean.
Never remove any parts of the projector except the lamp. Contact your dealer if other 
parts need replacing.
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface. Please be sure to turn off 
the projector, unplug the power cable and let it cool down completely before cleaning the 
lens.
•  Use a canister...

Maintenance 50
Lamp information
Getting to know the lamp hour
When the projector is in operation, the duration (in hours) of lamp usage is automatically 
calculated by the built-in timer. 
To obtain the lamp hour information:
1. Press MENU/EXIT and then press  /  to highlight the SYSTEM SETUP: 
Advanced menu.
2. Press  to highlight Lamp Settings and press MODE/ENTER. The Lamp 
Settings page displays.
3. You will see the Equivalent Lamp information displaying on the menu.
4. To leave the menu, press...