BenQ Pe8720 Users Manual

							  11
  Overview
EnglishProjector exterior view
Front and upper side view 
Rear view 
Under and side view 
Connector panel 
1. Rear IR sensor
2. Control panel (See page 12 for detailed 
information.)
3. Focus and Zoom adjustment
4. Indicator lights
5. Dust filter grill (cool air intake)
6. Front IR sensor
7. Projection lens
8. Vent (heated air exhaust)
PE8720
1
3
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5
7
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9. Connector panel (see below for detail)
10. Main AC power switch
11. Power cable socket
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11
12. Adjustable feet
13. Ceiling mounting holes
14. Kensington lock slot
13
13
121214
15. HDMI port
16. Component Video inputs (RCA)
support Y/P
B/PR or Y/CB/CR video signal
17. Composite Video input (RCA)
18. S-Video input (mini 4-pin DIN)
19. Component video inputs (BNC)
support Y/P
B/PR, Y/CB/CR, or RGB video 
signal
20. RGB High Definition inputs (BNC)
supports RGBHV video or PC signal
21. 12VDC output terminal
22. RS-232C port for wired remote control
Y
G/Y
HV PB/CB
B/PB/CBR/PR/CR
PR/CRVIDEO
12V TRIGGER
S-VIDEO
RS-232HDHI
19
20 15 17 18
16
21 22
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							12 Overview  
EnglishControls and functions
Control panel  
7. ZOOM Out / Down-arrow (d)button 
Performs the same action as the Zoom and 
Left-arrow buttons on the remote control. 
Reduces the size of the projected image. 
When the on-screen menu is activated, moves 
the selection downwards. 
8. POWER button
Performs the same action as the Power button 
on the remote control.
Toggles the projector between standby and on. 
When the projector is in standby, press once to 
turn the projector on. 
When the projector is on, press twice to turn 
the projector to standby. 
See pages 19, 23 and 34 for details. 
9. MENU / EXIT button
Performs the same action as the Menu and Exit 
buttons on the remote control. 
Turns on the On-Screen Display (OSD) menu. 
When the on-screen menu is activated, exits 
and saves the menu settings. 
10. SOURCE / ENTER button
Performs the same action as the source 
selection (COMP1, COMP2, VIDEO, HDMI, 
RGB HD, SVIDEO) and Enter buttons on the 
remote control. 
Switches sequentially through input sources. 
When the on-screen menu is activated, opens 
the currently selected menu item. 
 See page 25 for details. 
11. MEMORY button
Performs the same action as the memory 
buttons (1, 2, 3, default) on the remote control. 
Sequentially recalls default and user settings 
1–3 previously saved to memory. 
See page 23 for details. 
12. LENS SHIFT (-) down 
Performs the same action as the Lens and 
Down-arrow buttons on the remote control. 
Adjusts the motorised vertical lens by moving 
the image downwards on the screen in relation 
to the orientation of the projector. 
13. LENS SHIFT (+) up 
Performs the same action as the Lens and Up-
arrow buttons on the remote control. 
Adjusts the motorised vertical lens shift by 
moving the image upwards on the screen in 
relation to the orientation of the projector 1. POWER indicator light 
Lights up or flashes when the projector is operating. 
See page 34 for details. 
2. TEMPerature warning light 
Lights up or flashes if the projector’s temperature 
becomes too high. See page 34 for details.
3. LAMP indicator light
Lights up or flashes when the projector lamp has 
developed a problem. See page 34 for details. 
4. ZOOM-In / Up-arrow (c) button
Performs the same action as the Zoom and right-
arrow buttons on the remote control. 
Enlarges the size of the projected image. 
When the on-screen menu is activated, moves the 
selection upwards. 
5. FOCUS-In / Left-arrow (e) button 
Performs the same action as the Focus and Left-arrow 
buttons on the remote control. 
Adjusts the focus of the projected image. 
Moves the focal point closer to the projector.
When the on-screen menu is activated, moves the 
selection to the left. 
6. FOCUS-Out / Right-arrow (f) button 
Performs the same action as the Focus and Right-
arrow buttons on the remote control. 
Adjusts the focus of the projected image. 
Moves the focal point farther from the projector.
When the on-screen menu is activated, moves the 
selection to the right. 
2 1
3
4
5
11109
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							  13
  Overview
EnglishRemote control 
Remote control operation
• Make sure that there is nothing positioned between the remote control and the infrared (IR) sensor on the 
projector that might obstruct the IR beam from the remote control reaching the projector.
• The effective range of the remote control is up to 8 meters, and at an angle within 45 degrees of the IR beam.   
• Always aim straight at the projector, however most screens will also reflect the IR beam to the projector.  1. POWER button
Toggles the projector between standby mode and on. 
When the projector is in standby, press once to turn the projector on. 
When the projector is on, press twice to turn the projector to standby. 
See pages 19, 23 and 34 for details. 
2. Source selection buttons (COMP1, COMP2, VIDEO, HDMI, RGB HD, S-
VIDEO)
Selects an input source for display. See page 27 for details.
3. Aspect buttons (ANA, 4:3, LB, WIDE, REAL)
Selects the display aspect ratio. See page 27 for details.
4. PRESET button
Selects one of the preset program modes (Cinema, Home Theater, Family 
Room, Photo, Gaming). See page 20 for details. 
5. MEMORY buttons (1, 2, 3 and DEFAULT)
Restores picture settings saved in Memory locations 1, 2, 3 or Default for 
the current input source. See page 26 for details. 
6. Arrow buttons (Left e, Up c, Right f, Down d)
Moves the current On-Screen Display (OSD) menu selection in the 
direction of the arrow being pressed. See page 25 for details. 
7. ENTER button
Enacts the selected On-Screen Display (OSD) menu item. See page 25. 
8. MENU button
Toggles the On-Screen Display (OSD) menu on and off. See page 25. 
9. EXIT button
Exits and saves any changes made using the On-Screen Display (OSD) menu. See page 25 for details. 
10. Picture quality adjustment buttons (BRIGHTNESS, COLOR, CONTRAST, TINT):
Displays the setting bars for adjustment of the appropriate picture quality values. See page 26 for details. 
11. IRIS button
Displays the setting bar for the adjustment of the motorised aperture lens iris. 
12. Picture window control buttons (PIP, POP, +, -, ACTIVE)
Displays the Picture In Picture (PIP) or Picture On Picture (POP) windows with the PIP and POP buttons 
respectively, toggles between the main window and sub-window, or left window and right window with the 
ACTIVE button, and adjusts the size of the currently active window with the + or - buttons. See page 22. 
13. Picture enhancement buttons (ZOOM, FOCUS, LENS)
Displays the setting bars for the adjustment of the motorised Zoom, Focus, and vertical Lens shift values 
respectively.
14. LIGHT button
Turns on the remote control backlight for about 10 seconds. Pressing any other button while the backlight is 
on keeps the backlight on for a further 10 seconds. Press the Light button again to turn the backlight off.
CT
ENTER
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8
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up to 8m
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							14 Positioning your projector  
EnglishPositioning your projector
Choosing a location
Your projector is designed to be installed in one of four possible installation locations: 
1. Floor in front of screen; 
2. Ceiling in front of screen; 
3. Floor at rear of screen; or 
4. Ceiling at rear of screen. 
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. Floor front: 
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. Ceiling front: 
Select this location with the projector suspended 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 Ceiling Front in the Setup > Mirror menu after you 
turn the projector on.
3. Floor rear: 
Select this location with the projector placed near the 
floor behind the screen. 
Note that a special rear projection screen is required.
Set Floor Rear in the Setup > Mirror menu after you 
turn the projector on.4. Ceiling rear: 
Select this location with the projector suspended 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 Ceiling Rear in the Setup > Mirror menu after you 
turn the projector on.
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							  15
  Positioning your projector
EnglishObtaining 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. BenQ has provided separate tables of dimensions for both 16:9 and 4:3 screen ratios to 
assist you in determining the ideal location for your projector.
1. Determine the aspect ratio of your screen, (16:9 or 4:3)?
2. Select the Screen Size you desire from the 16:9 ratio screen dimension table or 4:3 ratio screen dimension 
table below, according to which screen aspect you have. Install the projector at a distance from the screen 
corresponding to between the Min. and Max. Projection Distance values in the table.
3. Decide the exact height of your projector.
This model projector has a 120% vertical height offset between the projector lens center and the angle of the 
edge of the projected image as indicated with the word Offset in the tables below. The PE8720 also has a built-
in motorised vertical Lens shift control for fine adjustment. 
Installation for a 16:9 ratio screen
16:9 (widescreen) ratio screen dimension table
The above numbers are approximate and may be slightly different from the actual measurements. Only 
the recommended screen sizes are listed. If the your screen size is not in the table above, please contact 
your BenQ dealer for assistance.
An examination of the table reveals that you can place the projector lens in the range from 2 to 10.8m distance 
from the screen, which will give you a projected image from 50 (1.11 x 0.62m) to 200 (4.43 x 2.49m) full 
screen.
ScreenHeight
Projection Distance
Diagonal
OffsetCeiling
Center of the lens
Ceiling Installation
Screen
Height 
Offset
Floor Center of the lens Diagonal
Projection Distance
Floor Installation
Screen Dimensions (inch / cm)Projection Distance (inch / cm)Offset (inch / cm)
Diagonal Width HeightMin distance 
(with max zoom)Max distance 
(with min zoom)Upper Lower
50 / 127 44 / 111 25 / 62 78 / 199 106 / 270 2.5 / 6.2 -27.0 / -68.5
60 / 152 52 / 133 29 / 75 94 / 239 128 / 324 2.9 / 7.5 -32.4 / -82.2
70 / 178 61 / 155 34 / 87 110 / 279 149 / 379 3.4 / 8.7 -37.8 / -95.9
80 / 203 70 / 177 39 / 100 126 / 319 171 / 433 3.9 / 10.0 -43.1 / -109.6
90 / 229 78 / 199 44 / 112 141 / 359 192 / 487 4.4 / 11.2 -48.5 / -123.3
100 / 254 87 / 221 49 / 125 156 / 400 213 / 541 4.9 / 12.5 -53.9 / -137.0
110 / 279 96 / 244 54 / 137 172 / 438 234 / 595 5.4 / 13.7 -59.3 / -150.7
120 / 305 105 / 266 59 / 149 188 / 478 256 / 649 5.9 / 14.9 -64.7 / -164.4
130 / 325 113 / 288 64 / 162 204 / 518 277 / 703 6.4 / 16.2 -70.1 / -178.1
140 / 356 122 / 310 69 / 174 220 / 558 298 / 757 6.9 / 17.4 -75.5 / -191.8
150 / 381 131 / 332 74 / 187 235 / 598 319 / 811 7.4 / 18.7 -80.9 / -205.5
160 / 406 139 / 354 78 / 199 251 / 638 341 / 865 7.8 / 19.9 -86.3 / -219.2
170 / 432 148 / 376 83 / 212 267 / 677 362 / 919 8.3 / 21.2 -91.7 / -232.9
180 / 457 157 / 398 88 / 224 282 / 717 383 / 973 8.8 / 22.4 -97.1 / -246.6
190 / 483 166 / 421 93 / 237 298 / 757 405 / 1028 9.3 / 23.7 -102.5 / -260.3
200 / 508 174 / 443 98 / 249 314 / 797 426 / 1082 9.8 / 24.9 -107.9 / -274.0
250 / 635 218 / 553 123 / 311 392 / 996 532 / 1352 12.3 / 31.1 -134.8 / -342.4
300 / 762 261 / 664 147 / 374 471 / 1195 639 / 1622 14.7 / 37.4 -161.8 / -410.9
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							16 Positioning your projector  
EnglishInstallation for a 4:3 ratio screen
4:3 (standard) ratio screen dimension table:
The above numbers are approximate and may be slightly different from the actual measurements. Only the 
recommended screen sizes are listed. If the your screen size is not in the table above, please contact your 
BenQ dealer for assistance.
An examination of the table reveals that you can place the projector lens in the range from 2.44 to 10.32m 
distance from the screen, which will give you a projected image from 50 (1.02 x 0.76m) to 200 (4.06 x 3.05m).
Shifting the projection lens vertically
The vertical lens shift control provides flexibility for installing your 
projector. It allows the projector to be positioned above or below the 
projected images’s vertical center.
The lens shift (offset) is expressed as a percentage of the projected image 
height (25% in the example above). It is measured as an offset from the 
projected images vertical center. The PE8720 is equipped with +
 120% 
vertical lens shift. You can shift the projection lens upwards or downwards 
within the allowable range depending on your desired image position. When the LENS button on the remote 
control or LENS SHIFT buttons (c or d) on the projector is pressed, an adjustment bar displays on the screen.
To raise the projected image, press the Lens Shift c button on the projector or the c button 
on the remote control.
To lower the projected image, press the Lens Shift d button on the projector or the d 
button on the remote control 
Screen
Image Height Projection Distance
OffsetCeiling
Center of the lens Diagonal
Ceiling Installation
Projection Distance
Floor Screen Image Height
OffsetCenter of the lens Diagonal
Floor Installation
Screen Dimensions (inch / cm)Projection Distance (inch / cm)Offset (inch / cm)
Diagonal Width HeightMin distance 
(with max zoom)Max distance 
(with min zoom) Upper Lower
50 / 127 40 / 102 30 / 76 72 / 184 98 / 249 3.0 / 7.6 - 33.0 / -83.8
60 / 152 48 / 122 36 / 91 87 / 221 117 / 298 3.6 / 9.1 -39.6 / -100.6
70 / 178 56 / 142 42 / 107 102 / 258 137 / 348 4.2 / 10.7 -46.2 / -117.3
80 / 203 64 / 163 48 / 122 116 / 294 157 / 398 4.8 / 12.2 -52.8 / -134.1
90 / 229 72 / 183 54 / 137 130 / 331 176 / 448 5.4 / 13.7 -59.4 / -150.9
100 / 254 80 / 203 60 / 152 145 / 368 196 / 497 6.0 / 15.2 -66.0 / -167.6
110 / 279 88 / 224 66 / 168 159 / 405 215 / 547 6.6 / 16.8 -72.6 / -184.4
120 / 305 96 / 244 72 / 183 174 / 442 235 / 597 7.2 / 18.3 -79.2 / -201.2
130 / 325 104 / 264 78 / 198 188 / 478 254 / 646 7.8 / 19.8 -85.8 / -217.9
140 / 356 112 / 284 84 / 213 203 / 515 274 / 696 8.4 / 21.3 -92.4 / -234.7
150 / 381 120 / 305 90 / 229 217 / 552 294 / 746 9.0 / 22.9 -99.0 / -251.5
160 / 406 128 / 325 96 / 244 232 / 589 313 / 796 9.6 / 24.4 -105.6 / -268.2
170 / 432 136 / 345 102 / 259 247 / 626 333 / 845 10.2 / 25.9 -112.2 / -285.0
180 / 457 144 / 366 108 / 274 261 / 662 352 / 895 10.8 / 27.4 -118.8 / -301.8
190 / 483 152 / 386 114 / 290 275 / 699 372 / 945 11.4 / 29.0 -125.4 / -318.5
200 / 508 160 / 406 120 / 305 290 / 736 392 / 995 12.0 / 30.5 -132.0 / -335.3
250 / 635 200 / 508 150 / 381  362 / 920 489 / 1243  15.0 / 38.1 -165.0 / -419.1
300 / 762 239 / 610 180 / 457  435 / 1104 587 / 1492 18.0 / 45.7 -198.0 / -502.9
0 100%
-100%
-120%120%
c
dLens Shift
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							  17
  Connecting with video equipment
EnglishConnecting with video equipment
You can connect the projector to any type of video equipment, such as a VCR, DVD player, digital tuner, cable 
or satellite decoder, video game console or digital camera. You can also connect it to a desktop or laptop PC or 
Apple Macintosh system. However, it has no built-in speakers and cannot be connected to audio equipment. 
The projector can be connected to multiple video equipment at the same time by using different cables. All you 
need do is select the appropriate input for the projector to display. 
When connecting a signal source to the projector, be sure to: 
1. Turn off all equipment before making any connections. 
2. Use only the correct type cables for each source with proper type plugs. 
3. Ensure that all cable plugs are firmly fitted to the equipment sockets. 
Note that all cables shown in the following connection diagrams may not be supplied with the projector 
(See page 9 for the shipping contents). Most cables are commercially available from electronics stores. 
Connecting a computer
Connect the projector to a computer with a VGA-BNC cable. 
If the selected video image is not displayed after the projector is turned on and the correct video source 
has been selected, please check that the video source device is turned on and operating correctly. Also 
check that the signal cables have been connected correctly.
Many laptops do not turn on their external video ports when connected to a projector. Usually a key 
combination 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 laptop. Press Fn and the labeled function key 
simultaneously. Refer to your laptop’s documentation to discover your laptop’s key combination.
VGA-BNC cable From audio output 
terminalsTo audio input 
terminals Laptop or desktop computer
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18 Connecting with video equipment  
EnglishConnecting video inputs
Connecting HDMI devices
You should use an HDMI cable when making connect
ion between the projector and HDMI devices. HDMI 
(High-Definition Multimedia Interface) supports unco mpressed 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.
You should also connect the separate audio cable to a suitable audio amplifier.
Connecting component-video devices
Be sure to match the corresponding colors between the cables and the terminals. 
The RCA type component video sockets are provided for connection to video output devices. If you have a BNC 
type component video cable, you can alternatively connect through the BNC component video sockets.
You should also connect the separate audio cable to a suitable audio amplifier.
Connecting S-video or video devices
You need only connect one or other of S-Video or compos ite Video cables from the same device, never both at 
the same time. You should also connect the separate audio cable to a suitable audio amplifier.
HDMI cable From audio output 
terminals
To audio input 
terminals
HDMI device: DVD player, digital tuner, etc.
AV equipment: DVD player, digital tuner, etc.
From audio output 
terminalsTo audio input 
terminals
Component cable
From audio output 
terminals To audio input 
terminals
S-Video cable
Video cable
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							  19
  Using the projector
EnglishUsing the projector
Preparations
1. Plug in and turn all of the connected equipment on.
2. If not already in, plug the supplied power cable into the AC inlet on the 
rear of the projector and turn on the power switch. 
3. Plug the power cable into a wall socket and turn the wall switch on.
Tu r n i n g  t h e  p r o j e c t o r  o n
Follow the steps below.
1. Make sure the Power light is orange after power has been applied and the 
main AC power switch is turned on. 
2. Press and hold the POWER button on the projector or remote control to turn 
the projector on.
The projector will not respond to further commands whilst it is warming up.
3. The fans will be start operating, and a start-up image displays on the screen 
for a few seconds whilst it warms up. 
4. Searching…. will be displayed on the screen before the projector identifies 
the input signal. This message will remain on the screen until a valid signal is detected. 
5. If the horizontal frequency of the input signal exceeds the range of the projector, the message Unsupported 
timing will be displayed on the screen. This message will remain on-screen until you change the input signal 
to an appropriate source. 
Selecting an input video source
The projector can be connected to multiple equipment at the same time. To 
select an individual input signal, press one of the Source buttons on the remote 
control, or to sequentially cycle through all possible sources, press the SOURCE/
ENTER button on the projector.
• When the projector is first turned on, it will attempt to reconnect with the 
input source which was in use when the projector was last shut down. 
• If you want to use the PIP or POP function. See page 22 for details.
Adjusting the projected image 
Adjusting the projection angle 
There are four adjuster feet on the bottom of the projector. These can 
be used if necessary to change the projection angle. Screw the feet in or 
out as appropriate to aim and level the projection angle. 
If the screen and the projector are not perpendicular to each other, 
the projected image becomes vertical trapezoidal. To correct this 
problem, you can adjust the value of Keystone in the Setup menu.
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							20 Using the projector  
EnglishFine-tuning the image size and clarity  
Optimizing the image
To optimize the image, use the remote control or on-screen menus. For the operation of on-screen menus, please 
refer to page See page 25.
The following steps are optional. You do not need to follow every step. It depends on the image quality you 
desire.
1. Selecting a preset mode
Select a preset mode on the remote control, or in Picture > Preset Mode menu. 
There are 5 modes available for each input. These modes consist of preset values 
suitable for various projection situations as described below: 
• Preset Cinema Mode: with well-balanced color saturation and contrast with a 
low brightness level. This is most suitable for enjoying movies in a totally dark 
environment (as you would find in a commercial cinema). 
• Preset Home Theater Mode: is slightly brighter than Cinema Mode, and suitable 
for use in rooms where there is a small amount of ambient light.
• Preset Family Room Mode: Brightness is emphasized in this mode and is best 
suited for use in rooms with normal lighting levels. It is good for watching TV 
programs, playing games or seeing bright movies.
• Preset Photo Mode: designed for viewing digital pictures in a living room.
• Preset Gaming Mode: is suitable for playing video games in a bright living room.
2. Selecting the aspect ratio
The aspect ratio is the ratio of the image width to the image height. Digital TV is 
usually in 16:9 ratio, which is the default for this projector, and most analog TV 
signals and DVDs are in 4:3 ratio.
With the advent of digital signal processing, digital display devices like this 
projector can dynamically stretch and scale the image output to a different aspect 
than that of the image input source. Images can be stretched in a linear manner so 
the whole of the image is stretched equally, or non-linearly, which distorts the 
image. 1. Adjust the projected image to the size that you need 
using the zoom buttons. When the ZOOM button is 
pressed, an adjustment bar   
displays on the screen. 
To enlarge the image size, press the c button on the 
projector or the f button on the remote control.
To reduce the image size, press the d button on the 
projector or the e button on the remote control.2. Then sharpen the image by using the focus buttons. 
When the FOCUS button is pressed, an adjustment bar 
  displays on the screen. To further 
adjust the image clarity, press the e or f button on the 
projector or remote control.
efZoomefFocus
CT
ENTER
123
SIZE
CT
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