BenQ Projector MX823ST User Manual

Operation 31
Setting a preferred color temperature
To set a preferred color temperature:
1. Highlight Color Temperature and select Warm, Normal or Cool by pressing 
/  on the projector or remote control.
2. Press  to highlight Color Temperature Fine Tuning and press MODE/
ENTER. The Color Temperature Fine Tuning page displays.
3. Press  / to highlight the item you want to change and adjust the values by 
pressing / .
•R Gain/G Gain/B Gain: Adjusts the contrast levels of Red, Green, and Blue.
•R Offset/G...

Operation 32Please refer to the illustration to the right 
for how the colors relate to each other.
For example, if you select Red and set its 
range at 0, only pure red in the projected 
picture will be selected. Increasing its range 
will include red close to yellow and red close 
to magenta.
5. Press  to highlight Saturation and adjust 
its values to your preference by pressing  /
. Every adjustment made will reflect to 
the image immediately.
For example, if you select Red and set its 
value at 0,...

Operation 33 4. Press  to highlight Timer Position and set the timer position by pressing  /
.
5. Press   to highlight Timer Counting Direction and select your desired counting 
direction by pressing  / .
6. Press  to highlight Sound Reminder and decide if you want to activate sound 
reminder by pressing  / . If you select On, a double beep sound will be heard at 
the last 30 seconds of counting down/up, and a triple beep sound will be produced 
when the timer is up.
7. To activate the presentation...

Operation 34
Hiding the image
In order to draw the audiences full attention to the presenter, you can use ECO BLANK 
on the projector or remote control to hide the screen image. When this function is 
activated with an audio input connected, the audio can still be heard. 
You can set the blank time in the SYSTEM SETUP: Basic > Operation Settings > 
Blank Timer menu to let the projector return the image automatically after a period of 
time when there is no action taken on the blank screen.
If the preset...

Operation 35
Adjusting the sound
The sound adjustments made as below will have an effect on the projector speaker(s). Be 
sure you have made a correct connection to the projector audio input. See Connection 
on page 17 for how the audio input is connected.
Muting the sound
To temporarily turn off the sound:
1. Press MENU/EXIT and then press  /  until the SYSTEM SETUP: Advanced 
menu is highlighted.
2. Press  to highlight Audio Settings and press MODE/ENTER. The Audio 
Settings page displays.
3. Highlight...

Operation 36
Using the teaching templates
The projector provides several preset patterns for various teaching purposes. To activate 
the pattern:
1. Open the OSD menu and go to the DISPLAY > Teaching Template menu and 
press /   to select Blackboard or Whiteboard.
2. Press /  to choose the pattern you need. 
3. Press MODE/ENTER to activate the pattern.
Teaching 
TemplateWhiteboardBlackboard
Letter 
Formation
Worksheet
Coordinate 
Chart 

Operation 37
Shutting down the projector
1. Press  POWER or   OFF and a confirmation message will display prompting 
you. 
If you dont respond in a few seconds, the message will disappear.
2. Press  POWER or   OFF a second time. The POWER indicator light 
flashes orange, the projection lamp shuts down, and the fans will continue to run for 
approximately 90 seconds to cool down the projector.
To protect the lamp, the projector will not respond to any commands during the cooling process.
To shorten the...

Operation 38
Menu operation
Menu system
Please note that the on-screen display (OSD) menus vary according to the signal type 
selected and the projector model you are using.
Main menu Sub-menu Options
1. 
DISPLAY
Wall ColorOff/Light Yellow/Pink/Light Green/Blue/
Blackboard
Aspect RatioAuto/Real/4:3/16:9/16:10
Keystone
Position
Phase
H. Size
Digital Zoom
3D3D ModeAuto/Top Bottom/Frame Sequential/
Frame Packing/Side by Side/Off
3D Sync InvertDisable/Invert
Apply 3D 
Settings3D Settings 1/3D Settings 2/3D...

Operation 39
Main menu Sub-menu Options
4. 
SYSTEM 
SETUP: 
Basic
Presentation 
TimerTimer Period1~240 minutes
Timer DisplayAlways/3 min/2 min/1 min/Never
Timer PositionTop-Left/Bottom-Left/Top-Right/
Bottom-Right
Timer Counting 
DirectionCount Down/Count Up
Sound ReminderOn/Off
On/Off
Language
Projector InstallationFront Table/Rear Table/Rear Ceiling/
Front Ceiling
Menu SettingsMenu Display 
Time5 sec/10 sec/20 sec/30 sec/Always
Menu PositionCenter/Top-Left/Top-Right/Bottom-
Right/Bottom-Left
Reminder...

Operation 40Note that the menu items are available when the projector detects at least one valid signal. 
If there is no equipment connected to the projector or no signal detected, limited menu 
items are accessible.
Main menu Sub-menu Options
5. 
SYSTEM 
SETUP: 
Advanced
High Altitude ModeOn/Off
Audio SettingsMuteOn/Off
Volume
Power On/Off 
Ring ToneOn/Off
Lamp SettingsLamp ModeNormal/Economic/SmartEco/
LampSave/LumenCare
Reset Lamp Timer
Equivalent Lamp
Security 
SettingsChange Password
Change Security...