BenQ Projector MX768 User Manual

							Connection 21 Computer system requirements for USB display::
Computer system requirements for WiFi display::
Computer system requirements for LAN display:: 1. Audio cable 7. USB cable (mini-B to type A)
2. Microphone 3.5 mini jack cable 8. Audio L/R cable
3. VGA cable 9. Video cable
4. VGA to DVI-A cable 10. S-Video cable
5. HDMI cable 11. Component Video to VGA (DSub) 
adapter cable
6. USB cable (type B to type A) 12. USB flash drive/hard disk drive/wireless 
dongle/keyboard/mouse
Operation System 
RequirementsMinimum Hardware Requirements
Windows XP
Windows Vista
Windows 7
MacSupports USB 2.0
CPU: Pentium 1G
RAM: 512MB RAM
Disk: 20MB hard driver space
Operation System 
RequirementsMinimum Hardware Requirements
Windows XP
Windows Vista
Windows 7
MacWiFi: 54 Mbps
CPU: Pentium 1G
RAM: 512MB RAM
20MB hard driver space
Operation System 
RequirementsMinimum Hardware Requirements
Windows XP
Windows Vista
Windows 7
MacLAN: 100 Mbps
CPU: Pentium 1G
RAM: 512MB RAM
20MB hard driver space 
						

							Connection 22
Connecting a computer or monitor
Connecting a computer
The projector can connect to both IBM® compatibles and Macintosh® computers. A Mac 
adapter is needed if you are connecting legacy version Macintosh computers.
To connect the projector to a notebook or desktop computer 
(using VGA):
1. Take the supplied VGA cable and connect one end to the D-Sub output socket of the 
computer.
2. Connect the other end of the VGA cable to the COMPUTER-1 or COMPUTER-
2 signal input jack on the projector.
3. If you wish to make use of the projector speaker(s) in your presentations, take a 
suitable audio cable and connect one end of the cable to the audio output jack of the 
computer, and the other end to the AUDIO-IN jack of the projector. When you 
connect audio output signal from a computer, please balance out the volume control 
bar to obtain an optimal sound effects.
4. If you wish, you can use another suitable audio cable and connect one end of the 
cable to the AUDIO-OUT jack of the projector, and the other end to your 
external speakers (not supplied).
Once connected, the audio can be controlled by the projector On-Screen Display 
(OSD) menus. See Audio Settings on page 70 for details.
The built-in speaker will be muted when the AUDIO-OUT jack is connected.
To connect the projector to a notebook or desktop computer 
(using USB):
1. Take a USB mini-B type to USB A type cable and connect one end to the A type jack 
of the computer.
2. Connect the other end of the cable to the MINI-B jack on the projector.
• It may take several seconds to successfully display the screen for the first time plug-in.
• If computers screen still cant be projected, please go to My Computer, double-click 
“BenQ QPresenter” icon, then run the “Autorun.exe” file.
• Projection speed will vary according to the computer capability.
To connect the projector to a notebook or desktop computer 
(using LAN):
1. Take a RJ45 cable and connect one end to the LAN input jack of the projector and 
the other end to the RJ45 port.
2. Make sure that your computer is also connected to an internet cable. Please use Q 
Presenter program to connect network display and transfers the desktop contents of 
the host PC via local network connection. See Displaying image through Q 
Presenter on page 58 for details.
Do not use the RJ45 cable to connect the projector to your computer. Because this connection 
needs an IP router. 
						

							Connection 23
To connect the projector to a notebook or desktop computer 
(using HDMI):
1. Take a HDMI cable and connect one end to the HDMI jack of the computer.
2. Connect the other end of the cable to the HDMI-1 or HDMI-2 jack on the 
projector.
• 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.
• Transmission speed and image quality will vary according to the bandwidth of local area 
network and the status of network usage.
Connecting a monitor
If you want to view your presentation close-up on a monitor as well as on the screen, you 
can connect the MONITOR-OUT signal output jack on the projector to an external 
monitor following the instructions below:
To connect the projector to a monitor:
1. Connect the projector to a computer as described in Connecting a computer on 
page 22.
2. Take a suitable VGA cable (only one supplied) and connect one end of the cable to 
the D-Sub input jack of the video monitor. 
Or if your monitor is equipped with a DVI input jack, take a VGA to DVI-A cable and 
connect the DVI end of the cable to the DVI input jack of the video monitor.
3. Connect the other end of the cable to the MONITOR-OUT jack on the projector.
• The output signal for MONITOR-OUT jack only works when the input signal comes from 
COMPUTER-1 or COMPUTER-2 jack. When the projector is powered on, the output signal 
from MONITOR-OUT jack varies depending on the input signal from COMPUTER-1 or 
COMPUTER-2 jack.
• If you wish to use this connection method when the projector is in standby mode, make sure 
the MONITOR-OUT function is turned on in the SYSTEM SETUP: Advanced > Standby 
Settings menu. See 
Standby Settings on page 70 for details. 
						

							Connection 24
Connecting Video source devices
You need only connect the projector to a Video source device using just one of the above 
connecting methods, however each provides a different level of video quality. The method 
you choose will most likely depend upon the availability of matching terminals on both the 
projector and the Video source device as described below:
Connecting an HDMI source device
The projector provides an HDMI input jack that allows you to connect it to an HDMI 
source device like a DVD player, a DTV tuner, a display or a notebook computer.
HDMI (High-Definition Multimedia Interface) supports uncompressed video data 
transmission between compatible devices like DTV tuners, DVD players and displays over a 
single cable. It provides pure digital viewing and listening experience.
Examine your Video source device to determine if it has a set of unused HDMI output 
jacks available:
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.
To connect the projector to an HDMI source device:
1. Take an HDMI cable and connect one end to the HDMI output jack of the HDMI 
source device.
2. Connect the other end of the cable to the HDMI-1 or HDMI-2 signal input jack on 
the projector. Once connected, the audio can be controlled by the projector On-
Screen Display (OSD) menus. See Audio Settings on page 70 for details.
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly.
Te r m i n a l
nameTerminal appearanceReferencePicture quality
HDMIHDMI-1/HDMI-2Connecting an 
HDMI source device 
on page 24Best
Component VideoCOMPUTER-1/
COMPUTER-2Connecting a 
Component Video 
source device on 
page 25Better
S-VideoS-VIDEOConnecting an S-
Video/composite 
source device on 
page 26Good
VideoVIDEO
Normal 
						

							Connection 25
• In the unlikely event that you connect the projector to a DVD player via the projectors 
HDMI input and the projected picture displays wrong colors, please change the color space 
to YUV. See 
Changing Color Space on page 37 for details.
Connecting a Component Video source device
Examine your Video source device to determine if it has a set of unused Component Video 
output jacks available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.
To connect the projector to a Component Video source device:
1. Take a Component Video to VGA (D-Sub) adaptor cable and connect the end with 3 
RCA type connectors to the Component Video output jacks of the Video source 
device. Match the color of the plugs to the color of the jacks; green to green, blue to 
blue, and red to red.
2. Connect the other end of the Component Video to VGA (D-Sub) adaptor cable 
(with a D-Sub type connector) to the COMPUTER-1 or COMPUTER-2 jack on 
the projector.
3. If you wish to make use of the projector speaker(s) in your presentations, take a 
suitable audio cable and connect one end of the cable to the audio output jack of the 
device, and the other end to the AUDIO (L/R) jack of the projector.
4. If you wish, you can use another suitable audio cable and connect one end of the 
cable to the AUDIO-OUT jack of the projector, and the other end to your 
external speakers (not supplied).
Once connected, the audio can be controlled by the projector On-Screen Display 
(OSD) menus. See Audio Settings on page 70 for details.
The built-in speaker will be muted when the AUDIO-OUT jack is connected.
If the selected video image is not displayed after the projector is turned on and the correct video 
source has been selected, check that the Video source device is turned on and operating 
correctly. Also check that the signal cables have been connected correctly. 
						

							Connection 26
Connecting an S-Video/composite source device
Examine your Video source device to determine if it has an unused S-Video/composite 
output jack available: 
• If it has both jacks, use the S-Video output jack for connection as the S-Video terminal 
provides better picture quality than the Video terminal.
• If it has either of the output jack, you can also continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.
To connect the projector to an S-Video/Video source device:
1. Take an S-Video/Video cable and connect one end to the S-Video/Video output jack 
of the Video source device.
2. Connect the other end of the S-Video/Video cable to the S-VIDEO/VIDEO jack on 
the projector.
3. If you wish to make use of the projector speaker(s) in your presentations, take a 
suitable audio cable and connect one end of the cable to the audio output jack of the 
device, and the other end to the AUDIO (L/R) jack of the projector.
4. If you wish, you can use another suitable audio cable and connect one end of the 
cable to the AUDIO-OUT jack of the projector, and the other end to your 
external speakers (not supplied).
Once connected, the audio can be controlled by the projector On-Screen Display 
(OSD) menus. See Audio Settings on page 70 for details.
The built-in speaker will be muted when the AUDIO-OUT jack is connected.
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly. 
						

							Operation27
Operation
Starting up the projector
1. Plug the power cord into the projector and into 
a power outlet. Check that the POWER 
indicator light on the projector lights orange 
after power has been applied.
• Please use the original accessories (e.g. power cable) 
only with the device to avoid possible dangers such as 
electric shock and fire.
• If Direct Power On function is activated in the 
SYSTEM SETUP: Basic > Operation Settings menu, 
the projector will turn on automatically after the power cord has been connected and power 
has been applied. See Direct Power On on page 69 for details. 
• If Signal Power On function is activated in the SYSTEM SETUP: Basic > Operation Settings 
menu, the projector will turn on automatically when VGA signal is detected. See Signal 
Power On on page 69 for details.
2. Make sure the lens cover is open. If it is closed, 
it could become deformed due to the heat 
produced by the projection lamp.
3. Press  Power on the projector or ON on 
the remote control to start the projector. The 
POWER indicator light flashes and stays 
green when the projector is on. 
The start up procedure takes about 10-20 
seconds. In the later stage of start up, a 
startup logo is projected. 
(If necessary) Use the focus ring to adjust the 
image clearness.
If the projector is still hot from previous activity, it will run the cooling fan for approximately 90 
seconds before energizing the lamp. 
4. If the projector is activated for the first time, 
select your OSD language following the on-
screen instructions.
5. If you are prompted for a password, press the 
arrow keys to enter a six digit password. See 
Utilizing the password function on page 34 
for details.
6. Switch all of the connected equipment on.
7. The projector will start to search for input 
signals. The current input signal being scanned 
displays in the screen. If the projector doesnt detect a valid signal, the message No 
Signal will continue displaying until an input signal is found. 
II 
						

							Operation 28You can also press SOURCE on the projector or remote control to select your 
desired input signal. See Switching input signal on page 36 for details.
• If no signal is detected for 3 minutes, the projector automatically enters ECO  BLANK 
mode.
Adjusting the projected image
Adjusting the projection angle
The projector is equipped with 1 quick-release adjuster foot and 1 rear adjuster foot. 
These adjusters change the image height and projection angle. To adjust the projector:
1. Press the quick-release button and lift the 
front of the projector. Once the image is 
positioned where you want it, release the 
quick-release button to lock the foot in 
position.
2. Screw the rear adjuster foot to fine tune the 
horizontal angle.
To retract the foot, hold up the projector while 
pressing the quick-release button, then slowly 
lower the projector. Screw the rear adjuster foot in a reverse direction.
If the projector is not placed on a flat surface or the screen and the projector are not 
perpendicular to each other, the projected image becomes trapezoidal. To correct this 
situation, see Correcting 2D keystone on page 28 for details.
• Do not look into the lens while the lamp is on. The strong light from the lamp may cause 
damage to your eyes.
• Be careful when you press the adjuster button as it is close to the exhaust vent where hot air 
comes from.
Auto-adjusting the image
In some cases, you may need to optimize the 
picture quality. To do this, press AUTO on the 
projector or remote control. Within 5 
seconds, the built-in Intelligent Auto Adjusent 
function will re-adjust the values of Frequency 
and Clock to provide the best picture quality.  
• The screen will display Auto adjusting while 
AUTO is functioning.
• This function is only available when PC signal (analog RGB) is selected.
Correcting 2D keystone
2D Keystone function enables a wider projector installation area compared to 
conventional projectors with limited positioning in front of the screen. 
To correct this, you will need to manually correct it following one of these steps.
12 
						

							Operation29 • Using the projector or remote control
Press  / / /  to display the 2D 
Keystone page. Press  /  to adjust vertical values from -30 
to 30. Press  /  to adjust horizontal values from -25 to 25.
•Using the OSD menu
1. Press MENU/EXIT and select the 
DISPLAY 
menu.
2. Press  to select 2D Keystone and press 
MODE/ENTER.
3. Press  / / /  to adjust the keystone values.
•Using the QUICK INSTALL key
1. Press QUICK INSTALL on the remote control.
2. Press  to select 2D Keystone and press 
MODE/ENTER.
3. Press  / / /  to adjust the keystone values.
Adjusting corner fit
Manually adjust four corners of the image by setting the horizontal and vertical values.
•Using the OSD menu
1. Select Corner Fit in the 
DISPLAY menu and 
press MODE/ENTER. 
						

							Operation 302. Press  / / /  to select one of the four corners and 
press MODE/ENTER.
3. Press  /  to adjust vertical values from 0 to 60.
4. Press  /  to adjust horizontal values from 0 to 60.
•Using the QUICK INSTALL key
1. Press QUICK INSTALL on the remote control.
2. Press  to select Corner Fit and press MODE/
ENTER.
3. Follow the steps 2~4 in the above section.
Adjusting surface fit
Manually correct geographic distortion by Surface Fit calibration function.
•Using the OSD menu
1. Select 
Surface Fit in the DISPLAY menu and 
press MODE/ENTER.
2. Press /  to select Horizontal Surface Fit 
and press MODE/ENTER.