BenQ Projector MU686 User Manual

							Operation 31
Optimizing the image
Using Wall Color
In the situation where you are projecting onto a colored surface such as a painted wall 
which may not be white, the Wall Color feature can help correct the projected picture’s 
colors to prevent possible color difference between the source and projected pictures.
To use this function, go to the DISPLAY > Wall Color menu and press  /  to select 
a color which is closest to the color of the projection surface. There are several 
precalibrated colors to choose from: Light Yellow, Pink, Light Green, Blue, and 
Blackboard.
Selecting a picture mode
The projector is preset with several predefined picture modes so that you can choose one 
to suit your operating environment and input signal picture type.
To select an operation mode that suits your need, do the following steps.
•  Go to the PICTURE > Picture Mode menu and press  /  to select a desired 
mode.
1.Bright mode: Maximizes the brightness of the projected image. This mode is 
suitable for environments where extra-high brightness is required, such as using the 
projector in well lit rooms.
2.Presentation mode: Is designed for presentations. The brightness is emphasized in 
this mode to match PC and notebook coloring.
3.sRGB mode: Maximizes the purity of RGB colors to provide true-to-life images 
regardless of brightness setting. It is most suitable for viewing photos taken with an 
sRGB compatible and properly calibrated camera, and for viewing PC graphic and 
drawing applications such as AutoCAD.
4.Cinema mode: Is appropriate for playing colorful movies, video clips from digital 
cameras or DVs through the PC input for best viewing in a blackened (little light) 
environment.
5.3D mode: Is appropriate for playing 3D images and 3D video clips.
6.User 1/User 2 mode: Recalls the settings customized based on the current 
available picture modes. See Setting the User 1/User 2 mode on page 31 for details.
Setting the User 1/User 2 mode
There are two user-definable modes if the current available picture modes are not suitable 
for your need. You can use one of the picture modes (except the User 1/User 2) as a 
starting point and customize the settings.
1. Press MENU to open the On-Screen Display (OSD) menu.
2. Go to the PICTURE > Picture Mode menu.
3. Press / to select User 1 or User 2.
4. Press  to highlight Reference Mode.
This function is only available when User 1 or User 2 mode is selected up in the Picture Mode sub-menu 
item.
5. Press / to select a picture mode that is closest to your need.
6. Press  to select a menu item to be changed and adjust the value with /. See 
Fine-tuning the image quality in user modes below for details. 
						

							Operation 32
Fine-tuning the image quality in user modes
According to the detected signal type and selected picture mode, some of the below 
functions may not be available. Based on your needs, you can make adjustments to these 
functions by highlighting them and pressing  /  on the projector or remote control.
Adjusting Brightness
The higher the value, the brighter the image. And the 
lower the setting, the darker the image. Adjust this 
control so the black areas of the image appear just as 
black and that detail in the dark areas is visible.
Adjusting Contrast
The higher the value, the greater the contrast. Use this 
to set the peak white level after you have previously 
adjusted the Brightness setting to suit your selected 
input and viewing environment.
Adjusting Color
Lower setting produces less saturated colors. If the setting is too high, colors on the image 
will be overpowering, which makes the image unrealistic.
Adjusting Tint
The higher the value, the more reddish the picture becomes. The lower the value, the 
more greenish the picture becomes.
Adjusting Sharpness
The higher the value, the sharper the picture becomes. The lower the value, the softer the 
picture becomes.
Adjusting Brilliant Color
This feature utilizes a new color-processing algorithm and system level enhancements to 
enable higher brightness while providing truer, more vibrant colors in picture. It enables a 
greater than 50% brightness increase in mid-tone images, which are common in video and 
natural scenes, so the projector reproduces images in realistic and true colors. If you 
prefer images with that quality, select On. If you don’t need it, select Off.
When Off is selected, the Color Temperature function is not available.
Selecting a Color Temperature
The options available for color temperature settings vary according to the signal type 
selected.
1.Cool: Makes images appear bluish white.
2.Normal: Maintains normal colorings for white.
3.Warm: Makes images appear reddish white.
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 OK. The 
Color Temperature Fine Tuning page appears.
+50+30+70
0-30+30 
						

							Operation 33 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 Offset/B Offset: Adjusts the brightness levels of Red, Green, and 
Blue.
4. Press BACK to exit and save the settings
3D Color Management
In most installation situations, color management will not be necessary, such as in 
classroom, meeting room, or lounge room situations where lights remain on, or where 
building external windows allow daylight into the room. 
Only in permanent installations with controlled lighting levels such as boardrooms, lecture 
theaters, or home theaters, should color management be considered. Color management 
provides fine color control adjustment to allow for more accurate color reproduction, 
should you require it.
Proper color management can only be achieved under controlled and reproducible viewing 
conditions. You will need to use a colorimeter (color light meter), and provide a set of 
suitable source images to measure color reproduction. These tools are not provided with 
the projector, however, your projector supplier should be able to provide you with suitable 
guidance, or even an experienced professional installer.
The Color Management provides six sets (RGBCMY) of colors to be adjusted. When you 
select each color, you can independently adjust its range and saturation according to your 
preference.
If you have purchased a test disc which contains various color test patterns and can be 
used to test the color presentation on monitors, TVs, projectors, etc, you can project any 
image from the disc on the screen and enter the 3D Color Management menu to make 
adjustments.
To adjust the settings:
1. Go to the PICTURE menu and highlight 3D Color Management.
2. Press OK on the projector or remote control and the 3D Color Management 
page appears.
3. Highlight Primary Color and press  /  to select a color from among Red, 
Yellow, Green, Cyan, Blue, or Magenta.
4. Press  to highlight Hue and press  /  to select its range. Increase in the range 
will include colors consisted of more proportions of its two adjacent colors.
Please 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.
RED
BLUEGREEN Yellow
Cyan
Magenta 
						

							Operation 34For example, if you select Red and set its value at 0, only the saturation of pure red 
will be affected.
Saturation is the amount of that color in a video picture. Lower settings produce less saturated colors; a 
setting of “0” removes that color from the image entirely. If the saturation is too high, that color will be 
overpowering and unrealistic.
6. Press  to highlight Gain and adjust its values to your preference by pressing  /
. The contrast level of the primary color you select will be affected. Every 
adjustment made will reflect to the image immediately. 
7. Repeat steps 3 to 6 for other color adjustments.
8. Make sure you have made all of the desired adjustments.
9. Press BACK to exit and save the settings.
Resetting current or all picture modes
1. Go to the PICTURE menu and highlight Reset Picture Settings.
2. Press OK and press  /  to select Current or All.
•Current: returns current picture mode to the factory preset settings.
•All: returns all picture modes to the factory preset settings.
Setting the presentation timer
Presentation timer can indicate the presentation time on the screen to help you achieve 
better time management when giving presentations. Follow these steps to utilize this 
function:
1. Go to the SYSTEM SETUP: Basic > Presentation Timer menu and press OK 
to display the Presentation Timer page.
2. Highlight Timer Period and decide the time period by pressing  / . The length 
of time can be set from 1 to 5 minutes in 1-minute increments and 5 to 240 minutes 
in 5-minute increments.
If the timer is already on, the timer will restart whenever the Timer Period is reset.
3. Press   to highlight Timer Display and choose if you want the timer to show up 
on the screen by press
ing /.
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 
SelectionDescription
Always Displays the timer on screen throughout the presentation time.
3 min/2 min/1 min  Displays the timer on screen in the last 3/2/1 minute(s).
Never Hides the timer throughout the presentation time.
Top-Left Bottom-Left Top-Right Bottom-Right
SelectionDescription
Count UpIncreases from 0 to the preset time.
Count DownDecreases from the preset time to 0. 
						

							Operation 35 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 timer, press   and press  /  to highlight On and 
press OK.
8. A confirmation message appears. Highlight Yes and press OK on the projector or 
remote control to confirm. You will see the message “Timer is On” displaying on 
the screen. The timer starts counting when the timer is on.
To cancel the timer, perform the following steps:
1. Go to the SYSTEM SETUP: Basic > Presentation Timer menu and highlight 
Off. Press OK. A confirmation message appears.
2. Highlight Yes and press OK to confirm. You will see the message “Timer is Off” 
displaying on the screen. 
Remote paging operations
Connect the projector to your PC or notebook with a USB cable prior to using the paging 
function. See Connection on page 17 for details.
You can operate your display software program (on a connected PC) which responds to 
page up/down commands (like Microsoft PowerPoint) by pressing PAGE +/PAGE - on 
the remote control.
If remote paging function doesnt work, check if the USB connection is correctly made and 
the mouse driver on your computer is updated to the latest version.
The remote paging function cannot work with Microsoft® Windows®98 operating system. Windows®XP or 
higher operating systems are recommended.
Freezing the image
Press FREEZE on the remote control to freeze the image. The word “FREEZE” will 
display in the upper left corner of the screen. To release the function, press any key on the 
projector or remote control.
Even if an image is frozen on the screen, the pictures are running on the video or other 
device. If the connected devices have active audio output, you will still hear the audio even 
though the image is frozen onscreen.
Hiding the image
In order to draw the audiences full attention to the presenter, you press ECO BLANK 
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 time spans are not suitable for your presentation, select Disable.
No matter 
Blank Timer is activated or not, you can press most of the keys on the 
projector or remote control to restore the picture.
Do not block the projection lens from projecting as this could cause the blocking object to become heated and 
deformed or even cause a fire. 
						

							Operation 36
Locking control keys
With the control keys on the projector locked, you can prevent your projector settings 
from being changed accidentally (by children, for example). When the Panel Key Lock is 
on, no control keys on the projector will operate except  POWER.
1. Go to the SYSTEM SETUP: Basic > Panel Key Lock menu, and select On by 
pressing  /  on the projector or remote control. A confirmation message 
appears. 
2. Highlight Yes and press OK to confirm.
To release panel key lock, use the remote control to enter the SYSTEM SETUP: Basic
 
> 
Panel Key Lock menu and press  /  to select Off.
Keys on the remote control are still active when panel key lock is enabled.
If you turn off the projector without disabling panel key lock, the projector will still be in locked status the 
next time it is turned on.
Operating in a high altitude environment
We recommend you use the High Altitude Mode when your environment is between 
1500 m –3000 m above sea level, and ambient temperature is between 0°C–30°C.
Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and ambient temperature is 
between 0°C and 35°C. The projector will be over cooled, if you turn the mode on under such a condition.
To activate the High Altitude Mode:
1. Press MENU and then press  /  until the SYSTEM SETUP: Advanced menu 
is highlighted.
2. Press  to highlight High Altitude Mode and press  /  select On. A 
confirmation message appears.
3. Highlight Yes and press OK.
Operation under High Altitude Mode may cause a higher decibel operating noise level 
because of increased fan speed necessary to improve overall system cooling and 
performance.
If you use this projector under other extreme conditions excluding the above, it may 
display auto shut-down symptoms, which is designed to protect your projector from over-
heating. In cases like this, you should switch to High Altitude mode to solve these 
symptoms. However, this is not to state that this projector can operate under any and all 
harsh or extreme conditions.
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, press  , or:
1. Press MENU and then press  /  until the SYSTEM SETUP: Advanced menu 
is highlighted.
2. Press  to highlight Audio Settings and press OK. The Audio Settings page 
appears.
3. Highlight Mute and press  /  to select On. 
						

							Operation 37
Adjusting the sound level
To adjust the sound level, press /, or:
1. Repeat steps 1-2 above.
2. Press  to highlight Volume and press  /  to select a desired sound level.
Turning off the Power On/Off Ring Tone
To turn off the ring tone:
1. Repeat steps 1-2 above.
2. Press  to highlight Power On/Off Ring Tone and press  /  to select Off.
The only way to change Power On/Off Ring Tone is setting On or Off here. Setting the sound mute or 
changing the sound level will not affect the Power On/Off Ring Tone.
Using the test pattern
The projector is able to display the grid test 
pattern. It helps you adjust the image size and 
focus and check that the projected image is free 
from distortion.
To display the test pattern, do one of the following 
steps:
• Press QUICK INSTALL on the remote 
control. Press   to highlight Test Pattern 
and press OK. Press  /  to select On.
•  Open the OSD menu and go to the SYSTEM 
SETUP: Advanced > Test Pattern and press  /  to select On. 
						

							Operation 38
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 and press 
/   to select Blackboard or Whiteboard.
2. Press /  to choose the pattern you need. 
3. Press OK to activate the pattern.
Teaching 
TemplateWhiteboardBlackboard
Letter 
Formation
Worksheet
Coordinate 
Chart 
						

							Operation 39
Shutting down the projector
1. Press  POWER and a confirmation message will display prompting you. 
If you dont respond in a few seconds, the message will disappear.
2. Press  POWER 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.
3. Once the cooling process finishes, a Power Off 
Ring Tone will be heard. The POWER indicator 
light is a steady orange and fans stop. Disconnect 
the power cord from the power outlet.
To turn off the power ring tone, see Turning off the Power On/Off 
Ring Tone on page 37 for details.
If the projector is not properly shut down, to protect the lamp, when 
you attempt to re-start the projector, the fans will run for a few 
minutes to cool down. Press   POWER again to start the projector 
after the fans stop and the POWER indicator light turns orange.
Lamp life results will vary depending on environmental conditions and 
usage.
Direct power off
The AC power cord can be pulled out right after the projector is turned off. To protect 
the lamp, wait about 10 minutes before re-starting the projector. (When you attempt to 
re-start the projector, the fans may run for a few minutes to cool down. In such cases, 
press  POWER again to start the projector after the fans stop and the POWER 
indicator light turns orange.) 
						

							Operation 40
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
Auto KeystoneOn/Off
Keystone
Corner Fit
Position
Phase
H. Size
Digital Zoom
3D3D ModeAuto/Top Bottom/Frame Sequential/
Frame Packing/Side by Side/Off
3D Sync InvertDisable/Invert
Save 3D Settings3D Settings 1/3D Settings 2/
3D Settings 3
Apply 3D 
Settings3D Settings 1/3D Settings 2/
3D Settings 3/Off
Teaching 
TemplateBlackboardOff/Letter Formation/Worksheet/
Coordinate Chart
WhiteboardOff/Letter Formation/Worksheet/
Coordinate Chart
2. 
PICTURE
Picture ModeBright/Presentation/sRGB/Cinema/(3D)/User 1/User 2
Reference ModeBright/Presentation/sRGB/Cinema/(3D)
Brightness
Contrast
Color
Tint
Sharpness
Brilliant ColorOn/Off
Color TemperatureCool/Normal/Warm
Color Temperature Fine TuningR Gain/G Gain/B Gain/R Offset/
G Offset/B Offset
3D Color 
ManagementPrimary ColorR/G/B/C/M/Y
Hue
Saturation
Gain
Reset Picture SettingsCurrent/All/Cancel
3. 
SOURCEQuick Auto SearchOn/Off
Color Space ConversionAuto/RGB/YUV