BenQ Mp723 Digital Projector User Manual

							Introduction 11
Remote control
1. Power
Toggles the projector on or off.
See Starting up the projector on page 26 
and Shutting down the projector on page 
45 for details.
2. ASPECT
Selects the display aspect ratio. See 
Selecting the aspect ratio on page 34 for 
details.
3. CAPTURE
Captures the projected picture and save it 
as your startup screen. See Creating your 
own startup screen on page 43 for details.4. Keystone/Arrow buttons ( / Up,  /
Down)
Manually corrects distorted images 
resulting from an angled projection. See 
Correcting keystone on page 33 for 
details.
5. MENU/EXIT
Tu r n s  o n  t h e  O n - S c r e e n  D i s p l a y  ( O S D )  
menu. Goes back to previous OSD menu, 
exits and saves menu settings. See Using 
the menus on page 27 for details.
6. Left/
Starts the FAQ function. See Utilizing 
FAQ function on page 42 for details.
7. BLANK
Used to hide the screen image. See Hiding 
the image on page 41 for details.
8. ENTER
Enacts the selected On-Screen Display 
(OSD) menu item. See Using the menus 
on page 27 for details.
9. TIMER ON/SHOW
Activates or displays an on-screen timer 
based on your own timer setting. See 
Setting the presentation timer on page 39 
for details.
10. BRIGHTNESS
Adjusts brightness. See Adjusting 
Brightness on page 36 for details.
11. CONTRAST
Adjusts contrast. See Adjusting Contrast 
on page 36 for details.
12. TIMER SETUP
Enters presentation timer setting directly. 
See Setting the presentation timer on 
page 39 for details.
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
4
20
21
22
II 
						

							Introduction 1213. Indicator light
Flashes or lights red when any key on the 
remote control is pressed.
14. MODE
Depending upon which input signal is 
selected, selects an available picture mode. 
See Selecting a picture mode on page 35 
for details. 
15. FREEZE
Freezes the projected image. See Freezing 
the image on page 41 for details.
16. MUTE
Toggles projector audio between on and 
off.
17. AUTO
Automatically determines the best picture 
timings for the displayed image. See Auto-
adjusting the image on page 32 for details.
18. Right/
Locks the buttons on the projector. See 
Locking control keys on page 42 for 
details.
When the On-Screen Display (OSD) menu 
is activated, the #4, #6 and #18 buttons are 
used as directional arrows to select the 
desired menu items and to make 
adjustments. See Using the menus on 
page 27 for details.
19. SOURCE
Displays the source selection bar. See 
Switching input signal on page 31 for 
details.
20. LASER
Emits visible laser pointer light for 
presentation purposes. See Operating the 
LASER pointer on the right for details.
21. PAGE 
/
Operate your display software program (on 
a connected PC) which responds to page 
up/down commands (like Microsoft 
PowerPoint). See Remote paging 
operations on page 40 for details.22. D. ZOOM (+, -)
Magnifies or reduces the projected image 
size. See Magnifying and searching for 
details on the projected picture on page 33 
for details.
Operating the LASER pointer
The LASER Pointer is a 
presentation aid for 
professionals. It emits red 
colored light when you press it 
and the indicator lights up red.
The laser beam is visible. It is 
necessary to press and hold 
LASER for continuous output. 
Do not look into the laser light window or 
shine the laser light beam on yourself or 
others. See the warning messages on the 
back of the remote control and the enclosed 
User Information prior to using it.
The laser pointer is not a toy. Parents should be 
mindful of the dangers of laser energy and keep 
this remote control out of the reach of children. 
						

							Introduction 13
Remote control effective range
Infra-Red (IR) remote control sensors are located on the front and the back of the projector. 
The remote control must be held at an angle within 30 degrees perpendicular to the 
projectors IR remote control sensors to function correctly. The distance between the remote 
control and the sensors should not exceed 8 meters (~ 26 feet).
Make sure that there are no obstacles between the remote control and the IR sensors on the 
projector that might obstruct the infra-red beam. 
Replacing the remote control batteries
1. To open the battery cover, turn the remote control over to view its back, push on the 
finger grip on the cover and slide it up in the direction of the arrow as illustrated. The 
cover will slide off.
2. Remove any existing batteries (if necessary) and install two AAA batteries observing 
the battery polarities as indicated in the base of the battery compartment. Positive (+) 
goes to positive and negative (-) goes to negative.
3. Refit the cover by aligning it with the base and sliding it back down into position. Stop 
when it clicks into place.
Avoid leaving the remote control and batteries in an excessive heat or humid environment like 
the kitchen, bathroom, sauna, sunroom or in a closed car.
Replace only with the same or equivalent type recommended by the battery manufacturer.
Dispose of the used batteries according to the manufacturers instructions and local 
environment regulations for your region.
Never throw the batteries into a fire. There may be danger of an explosion.
If the batteries are dead or if you will not be using the remote control for an extended period of 
time, remove the batteries to avoid damage to the remote control from possible battery 
leakage.
PUSH
• Operating the projector from the 
front
App
ro
x. 
1
5°
Ap
pro
x.
 1
5°
• Operating the projector from the 
rear 
						

							Positioning your projector 14
Positioning your projector
Choosing a location
Your projector is designed to be installed in one of four possible installation locations: 
Your room layout or personal preference will dictate which installation location you select. 
Take into consideration the size and position of your screen, the location of a suitable power 
outlet, as well as the location and distance between the projector and the rest of your 
equipment.1. Front Table
Select this location with the projector placed near the 
floor in front of the screen. This is the most common 
way to position the projector for quick setup and 
portability.
2. Front Ceiling
Select this location with the projector suspended 
upside-down from the ceiling in front of the screen.
Purchase the BenQ Projector Ceiling Mounting Kit 
from your dealer to mount your projector on the 
ceiling.
Set Front Ceiling in the SYSTEM SETUP: Basic > 
Projector Position menu after you turn the projector 
on.
3. Rear Table
Select this location with the projector placed near the 
floor behind the screen.
Note that a special rear projection screen is required.
Set Rear Table in the SYSTEM SETUP: Basic > 
Projector Position menu after you turn the projector 
on.
4. Rear Ceiling
Select this location with the projector suspended 
upside-down from the ceiling behind the screen.
Note that a special rear projection screen and the 
BenQ Projector Ceiling Mounting Kit are required for 
this installation location.
Set Rear Ceiling in the SYSTEM SETUP: Basic > 
Projector Position menu after you turn the projector on. 
						

							Positioning your projector 15
Obtaining a preferred projected image size
The distance from the projector lens to the screen, the zoom setting, and the video format 
each factors in the projected image size.
4:3 is the native aspect ratio of this projector. To be able to project a complete 16:9 
(widescreen) aspect ratio image, the projector can resize and scale a widescreen image to the 
projectors native aspect width. This will result in a proportionally smaller height equivalent 
to 75% of the projectors native aspect height.
Thus, a 16:9 aspect image will not utilize 25% of the height of a 4:3 aspect image displayed 
by this projector. This will be seen as darkened (unlit) bars along the top and bottom 
(vertical 12.5% height respectively) of the 4:3 projection display area whenever displaying a 
scaled 16:9 aspect image in the vertical center of the 4:3 projection display area.
When determining the position of your projector, you should consider its intended use and 
input signal aspect ratios. All inputs (other than composite Video being fed a 16:9 aspect 
signal) will display in a 4:3 aspect ratio (and will require an additional 33% display height 
than that of the scaled 16:9 aspect image projection area).
IMPORTANT: Do not select a permanent projector position based upon a 16:9 projection if you 
will ever need to select an input (other than composite Video being fed a 16:9 aspect signal).
The projector should always be placed horizontally level (like flat on a table), and positioned 
directly perpendicular (90° right-angle square) to the horizontal center of the screen. This 
prevents image distortion caused by angled projections (or projecting onto angled surfaces). 
The modern digital projector does not project directly forward (like older style reel-to-reel 
film projectors did). Instead, digital projectors are designed to project at a slightly upward 
angle above the horizontal plane of the projector. This is so that they can be readily placed 
on a table and will project forward and upwards onto a screen positioned so that the bottom 
edge of the screen is above the level of the table (and everyone in the room can see the 
screen).
If the projector is mounted on a ceiling, it must be mounted upside-down so that it projects 
at a slightly downward angle. 
You can see from the diagram on page 17, that this type of projection causes the bottom edge 
of the projected image to be vertically offset from the horizontal plane of the projector. 
When ceiling mounted, this refers to the top edge of the projected image.
If the projector is positioned further away from the screen, the projected image size 
increases, and the vertical offset also increases proportionately.      
When determining the position of the screen and projector, you will need to account for 
both the projected image size and the vertical offset dimension, which are directly 
proportional to the projection distance.
BenQ has provided a table of 4:3-aspect-ratio screen sizes to assist you in determining the 
ideal location for your projector. There are two dimensions to consider, the perpendicular 
horizontal distance from the center of the screen (projection distance), and the vertical 
offset height of the projector from the horizontal edge of the screen (offset).4:3 aspect image in a 4:3 aspect display area16:9 aspect image scaled to a 4:3 aspect 
display area 
						

							Positioning your projector 16
How to determine the position of the projector for a given 
screen size
1. Select your screen size.
2. Refer to the table and find the closest match to your screen size in the left columns 
labelled 4:3 screen diagonal. Using this value, look across this row to the right to find 
the corresponding average distance from screen value in the column labelled 
Average. This is the projection distance.
3. On that same row, look across to the right column and make note of the Vertical offset 
value. This will determine the final vertical offset placement of the projector in 
relation to the edge of the screen.
4. The recommended position for the projector is aligned perpendicular to the 
horizontal center of the screen, at the distance from the screen determined in step 2 
above, and offset by the value determined in step 3 above.
For example, if you are using a 120 inch screen, the average projection distance is 4667 mm 
and with a vertical offset of 183 mm.
If you place the projector in a different position (to that recommended), you will have to tilt 
it down or up to center the image on the screen. In these situations, some image distortion 
will occur. Use the Keystone function to correct the distortion. See Correcting keystone on 
page 33 for details.
How to determine the recommended screen size for a 
given distance
This method can be used for situations where you have purchased this projector and would 
like to know what screen size will fit in your room.
The maximum screen size is limited by the physical space available in your room. 
1. Measure the distance between the projector and where you want to position the 
screen. This is the projection distance.
2. Refer to the table and find the closest match to your measurement in the average 
distance from screen column labelled Average. Check that your measured distance is 
between the min and max distances listed on either side of the average distance value.
3. Using this value, look across that row to the left to find the corresponding screen 
diagonal listed in that row. That is the projected image size of the projector at that 
projection distance.
4. On that same row, look across to the right column and make note of the Vertical offset 
value. This will determine the final placement of the screen in relation to the 
horizontal plane of the projector. 
For example, if your measured projection distance was 4.5m (4500mm), the closest match in 
the Average column is 4593 mm. Looking across this row shows that a 3000 mm (3.0 m) 
screen is required. If you can only obtain imperial sized screens, the listed screen sizes on 
either side of the 3.0 m screen are the 9 and 10 screens. 
Checking the min and max projection distance values for these screen sizes, indicates that 
the 4.5 m measured projection distance will fit the 10 size screen. The projector can be 
adjusted (using the zoom control) to display on these different screen sizes at those 
projection distances. Be aware that these different screens have different vertical offset 
values. 
						

							Positioning your projector 17
There is 3% tolerance among these numbers due to optical component variations. BenQ 
recommends that if you intend to permanently install the projector, you should physically test 
the projection size and distance using the actual projector in situ before you permanently 
install it, so as to make allowance for this projectors optical characteristics. This will help you 
determine the exact mounting position so that it best suits your installation location.
4:3 screen diagonalDistance from Screen in mmVertical offset in mm
FeetInchesmmMin length 
(with max. 
zoom)Ave r a g eMax length 
(with min. 
zoom)
4 48 1219 1778 1867 1956 73
1500 2187 2297 2406 90
5 60 1524 2222 2333 2444 91
6 72 1829 2667 2800 2933 110
2000 2916 3062 3208 120
7 84 2134 3111 3267 3422 128
8 96 2438 3556 3733 3911 146
2500 3645 3828 4010 150
9 108 2743 4000 4200 4400 165
3000 4374 4593 4812 180
10 120 3048 4444 4667 4889 183
3500 5104 5359 5614 210
12 144 3658 5333 5600 5867 219
4000 5833 6124 6416 240
15 180 4572 6667 7000 7333 274
5000 7291 7655 8020 300
18 216 5486 8000 8400 8800 329
6000 8749 9186 9624 360
25 300 7620 11111 11667 12222 457
Maximum zoom
Minimum zoom
Projection distanceCenter of lens Screen
Offset 
						

							Connection 18
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.
Connecting a computer or monitor
Connecting a computer
The projector provides a VGA and DVI input sockets that allow you to connect it to both 
IBM® compatibles and Macintosh® computers. A Mac adapter (an optional accessory) is 
needed if you are connecting legacy version Macintosh computers.
Additionally, you can also connect the projector to a computer via the USB cable so you can 
perform paging operations of the application on the PC or notebook.
To connect the projector to a notebook or desktop computer (either through a 
VG A  c a b l e  o r  VG A  to  DV I - A  c a b l e ) :   
• With a VGA cable: • With a VGA to DVI-A cable:
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 D-SUB/COMP. IN 
signal input socket on the projector. 1. Take a VGA to DVI-A cable and 
connect the VGA end to the D-Sub 
output socket of the computer.
2. Connect the DVI end of the VGA to 
DVI-A cable to the DVI signal input 
socket on the projector. 
3. If you wish to use the remote paging function, take a USB cable and connect the 
larger end to the USB port of the computer, and the smaller end to the USB socket 
on the projector. See Remote paging operations on page 40 for details.
4. If you wish to make use of the projector (mixed mono) speaker in your 
presentations, take a suitable audio cable and connect one end of the cable to the 
audio output socket of the computer, and the other end to the AUDIO socket of 
the projector. 
Once connected, the audio can be controlled by the projector On-Screen Display 
(OSD) menus. See Audio Settings on page 51 for details. 
						

							Connection 19 The final connection path should be like that shown in the following diagram:
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.
notebook or 
desktop computer
oriiiiii i. VGA cable
ii. VGA to DVI-A cable
iii. Audio cable
iv. USB cableiv 
						

							Connection 20
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 D-SUB OUT signal output socket on the projector to an external monitor 
with a VGA or VGA to DVI-A cable by following the instructions below.
To connect the projector to a monitor (either through a VGA cable or VGA to 
DVI-A cable):
The final connection path should be like that shown in the following diagram: • With a VGA cable: • With a VGA to DVI-A cable:
Note: Your monitor must be equipped with 
a DVI input socket.
1. Connect the projector to a computer as described in Connecting a computer on 
page 18.
The D-SUB output only works when an appropriate D-SUB input is made to the 
projector. Be sure the projector is connecting with the computer using the D-SUB/
COMP. IN socket, not the DVI socket.
2. Take a suitable VGA cable (only one 
supplied) and connect one end of 
the cable to the D-Sub input socket 
of the video monitor.
3. Connect the other end of the cable 
to the D-SUB OUT socket on the 
projector.2. Take a VGA to DVI-A cable and 
connect the DVI end of the cable to 
the DVI input socket of the video 
monitor.
3. Connect the VGA end of the cable to 
the D-SUB OUT socket on the 
projector.
notebook or desktop 
computer
(VGA) (DVI)
iiiiii i. VGA to DVI-A cable
ii. VGA cable
iii. VGA cable