BenQ Projector MX723 User Manual

							
Connection 21
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.
• For detailed connection methods, see pages  22-26.
1
2
3
2
4135
HDMIUSB
USBHDMI
HDMI
HDMI
7
11110
64
89 
						

							
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 conne cting 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 IN-1 or 
COMPUTER IN-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 61  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 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.
• Do not use the RJ45 cable to connec t the projector to your computer. 
Because this connection  needs an IP router.
1. Audio cable 7. USB port for power charging
2. Microphone 3.5 mini jack cable 8. Component Video to VGA (DSub) 
adapter cable
3. HDMI cable 9. S-Video cable
4. VGA cable 10. Video cable
5. USB cable (mini-B to type A) 11. Audio L/R cable
6. VGA to DVI-A cable 
						

							
Connection 23
• Transmission speed and image quality will vary according to the 
bandwidth of local area network and the status of network usage.
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 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.
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 COMP UTER IN-1 or COMPUTER IN-2 jack. When 
the projector is powered on, the  output signal from MONITOR OUT 
jack varies depending on the inpu t signal from COMPUTER IN-1 or 
COMPUTER IN-2 jack.
• If you wish to use this connection  method when the projector is in 
standby mode, make sure the MONITO R OUT function is turned on in 
the SYSTEM SETUP: Advanced > Standby Settings menu. See 
Standby Settings on page 63  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 Inte rface) 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 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 61 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 
Te r m i n a l  n a m eTe r m i n a l  
appearanceReferencePicture quality
HDMI HDMII
Connecting an 
HDMI source 
device on page 24 Best
Component Video COMPUTER IN-1/
COMPUTER IN-2 Connecting a 
Component Video  source device on  page 25 Better
S-Video S-VIDEO
Connecting an S-Video/composite 
source device on 
page 26 Good
Video VIDEO
Normal 
						

							
Connection 25
source device is turned on and oper
ating correctly. Also check that the 
signal cables have been connected correctly.
• 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 36  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 IN-1 or COMPUTER 
IN-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 61  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 oper ating correctly. Also check that the 
signal cables have been connected correctly. 
						

							
Connection
26
Connecting an S-Video/co mposite 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-Vide o output jack for connection as the S-
Video terminal provides better pictur e 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 61  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 oper ating correctly. Also check that the 
signal cables have been connected correctly. 
						

							
Operation 27
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 60  for details. 
• If Signal Power On function is acti vated in the SYSTEM SETUP: Basic > 
Operation Settings menu, the projec tor will turn on automatically 
when VGA signal is detected. See  Signal Power On on page 60 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. 
II 
						

							
Operation
28 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 33  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. 
You can also press  SOURCE on the projector or remote control to select your 
desired input signal. See  Switching input signal on page 35  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 29  for details.
• Do not look into the lens while the la mp is on. The strong light from the 
lamp may cause damage to your eyes.
• Be careful when you press the adjust er button as it is close to the 
exhaust vent where hot air comes from.
Auto-adjusting the image
12 
						

							
Operation 29
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.
• Using the projector or remote control
Press  /// to display the  Key s t o n e 
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  Key s t o n e 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  Key s t o n e and press  Mode/
Enter .
3. Press  / / /  to adjust the keystone values. 
						

							
Operation
30
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 .
2. 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.