BenQ Pe8720 Users Manual

							PE8720 Digital Projector
Home Cinema Series
User’s Manual
Welcome
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							2 Copyright  
Copyright
Copyright © 2005 by BenQ Corporation. All rights reserved. No part of this publication may be repro-
duced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer
language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or
otherwise, without the prior written permission of BenQ Corporation.
Disclaimer
BenQ Corporation makes no representations or warranties, either expressed or implied, with respect to
the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular
purpose. Further, BenQ Corporation reserves the right to revise this publication and to make changes
from time to time in the contents hereof without obligation of BenQ Corporation to notify any person of
such revision or changes.
*DLP, Digital Micromirror Device and DMD are trademarks of Texas Instruments. Others are copy-
rights of their respective companies or organizations.
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							  3
  Table of contents
EnglishTable of contents
Safety, regulatory and legal information ........................................................... 5
FCC statement (for United State users)  ..................................................................... 5
EEC statement (for European users)  .......................................................................... 5
MIC statement  ............................................................................................................. 5
Moisture condensation  ............................................................................................... 5
Avoid volatile liquid  .................................................................................................... 5
Disposal ........................................................................................................................ 5
Safety instructions  ..................................................................................... 6
Overview ............................................................................................................. 9
Shipping contents  ...................................................................................... 9
Remote control batteries  ........................................................................... 9
BenQ PE8720 projector features ............................................................... 10
Projector exterior view  .............................................................................. 11
Front and upper side view  .......................................................................................... 11
Rear view   .....................................................................................................................11
Under and side view   ................................................................................................... 11
Connector panel   ......................................................................................................... 11
Controls and functions .............................................................................. 12
Control panel   .............................................................................................................. 12
Remote control  .......................................................................................................13
Positioning your projector  ................................................................................. 14
Choosing a location  ................................................................................... 14
Obtaining a preferred projected image size  ............................................. 15
Installation for a 16:9 ratio screen  .............................................................................. 15
Installation for a 4:3 ratio screen  ................................................................................ 16
Shifting the projection lens vertically  ......................................................................... 16
Connecting with video equipment .................................................................... 17
Connecting a computer ............................................................................. 17
Connecting video inputs  ........................................................................... 18
Connecting HDMI devices  ......................................................................................... 18
Connecting component-video devices  ....................................................................... 18
Connecting S-video or video devices  ......................................................................... 18
Using the projector ............................................................................................. 19
Preparations ............................................................................................... 19
Turning the projector on  .......................................................................... 19
Selecting an input video source  ................................................................ 19
Adjusting the projected image   ................................................................. 19
Adjusting the projection angle   ................................................................................... 19
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							4 Table of contents  
EnglishFine-tuning the image size and clarity   ...................................................................... 20
Optimizing the image  ................................................................................20
1. Selecting a preset mode  .......................................................................................... 20
2. Selecting the aspect ratio  ........................................................................................ 20
3. Adjusting contrast ratio  .......................................................................................... 21
4. Other adjustments  .................................................................................................. 22
Displaying more than one image source at once  .....................................22
Personalizing the projector menu display  ................................................23
Saving and loading the video memory  .....................................................23
Turning the power off ................................................................................23
Menus .................................................................................................................. 24
On Screen Display (OSD) structure  .........................................................24
Using the menus  ........................................................................................25
Picture menu  ..............................................................................................26
Display menu  .............................................................................................27
Options menu  ............................................................................................28
Setup menu  ................................................................................................28
Advance menu ............................................................................................29
Additional information  ...................................................................................... 30
Care of the projector  ..................................................................................30
Cleaning the lens  ......................................................................................................... 30
Cleaning the projector case  ........................................................................................ 30
Storing the projector ................................................................................................... 30
Transporting the projector  ......................................................................................... 30
Cleaning and replacing the dust filter ........................................................................ 30
Installing the cable connector-panel cover  ...............................................32
Replacing the lamp  ....................................................................................33
Indicators ....................................................................................................34
Troubleshooting .........................................................................................35
Specifications ..............................................................................................36
Optical ......................................................................................................................... 36
Electrical ...................................................................................................................... 36
Terminals .....................................................................................................................36
General characteristics  ................................................................................................ 36
Dimensions ................................................................................................36
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							  5
  Safety, regulatory and legal information
EnglishSafety, regulatory and legal information
Thank you for your purchase of this quality BenQ video projector! It has been designed to provide you with an 
enjoyable home theater viewing experience. For the best results, please read this manual through carefully as it 
is your guide through the control menus and operation.
FCC statement (for United State users)
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to 
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful 
interference in a residential installation.
CLASS B: This equipment generates, uses and can radiate radio frequency energy and, if not installed and used 
in accordance with the instructions, may cause harmful interference to radio communications. However, there 
is no guarantee that interference will not occur in a particular installation. If this equipment does cause 
harmful interference to radio or television reception, which can be determined by turning the equipment off 
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the distance between the equipment and receiver.
— Connect the equipment into an outlet on a circuit different from that to which the receiver is 
connected.
— Consult the dealer or an experienced radio/TV technician for help.
EEC statement (for European users)
This machine was tested against the 89/336/EEC (European Economic Community) for EMC (Electro 
Magnetic Compatibility) and fulfills these requirements.
MIC statement
B class equipment (Household purpose info/telecommunications equipment)
As this equipment has undergone EMC registration for household purpose, this product can be used in any area 
including residential areas.
Moisture condensation
Never operate the projector immediately after moving it from a cold location to a hot location. When the 
projector is exposed to such a change in temperature, moisture may condense on the crucial internal parts. To 
prevent the projector from possible damage, do not use the projector for at least 2 hours when there is a sudden 
change in temperature.
Avoid volatile liquid
Do not use volatile liquids, such as insecticide or some types of cleaner, near the projector. Do not have rubber 
or plastic products touching the projector for a long time. They will leave marks on the finish. If cleaning with a 
chemically treated cloth, be sure to follow the cleaning product’s safety instructions.
Disposal
This product contains the following materials which are harmful to human bodies and environment.
•  Lead, which is contained in solder. 
•  Mercury, which is used in the lamp.
To dispose of the product or used lamps, consult your local environment authorities for regulations.
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							6 Safety, regulatory and legal information  
EnglishSafety instructions
Your BenQ projector is designed and tested to meet the latest standards for safety of information technology 
equipment. However, to ensure safe use of this product, it is important that you follow the instructions 
mentioned in this manual and marked on the product.
Safety instructions
1. Please read this user’s manual before you 
operate your projector. Keep this manual in a 
safe place for future reference.   
2. Always place the projector on a level, horizontal 
surface during operation.
- Do not place the projector on an unstable cart, 
stand, or table as it may fall and be damaged; 
- Do not place inflammables near the projector; 
- Do not use if tilted at an angle of more than 10 
degrees left to right, nor at angle of more than 15 
degrees front to back.  
3. This projector is capable of displaying inverted 
images for ceiling mount installation. Use only 
BenQ’s Ceiling Mounting Kit for mounting. 4. Do not place the projector in any of the 
following environments: 
- space that is poorly ventilated or 
confined. Allow at least 50 cm clearance 
from walls and free flow of air around 
the projector; 
- locations where temperatures may 
become excessively high, such as the 
inside of a car with all windows closed; 
- locations where excessive humidity, 
dust, or cigarette smoke may 
contaminate optical components, 
shortening the projector’s lifespan and 
darkening the screen;  
- locations near fire alarms;
- locations with an ambient temperature 
above 40°C / 104°F;
- locations where altitude is higher than 
3050 metres / 10000 feet above sea 
level.
6000~
feet 10000
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							  7
  Safety, regulatory and legal information
EnglishSafety instructions (continued)
5. Do not block the ventilation holes whilst the 
projector is on (even in standby mode): 
- Do not cover the projector with any item; 
- Do not place the projector on a blanket, 
bedding or any other soft surface.   
6. In areas where the mains power supply 
voltage may fluctuate by ±10 volts, it is 
recommended that you connect your 
projector through a power stabilizer, surge 
protector or uninterruptible power supply 
(UPS) as appropriate to your situation.   
7. Do not step on the projector or place any 
objects upon it.. 
8. Do not place liquids near or on the projector. 
Liquids spilled into the projector will void your 
warranty. If the projector does become wet, 
disconnect it from the power point and call 
BenQ to have the projector repaired. 9. Always remove the lens cap before switching 
the projector lamp on.   
10. Do not look straight into the projector lens 
during operation. It may harm your sight.   
11. Do not operate the projector lamp beyond the 
rated lamp life. Excessive operation of lamps 
beyond the rated life could cause a lamp to 
break on rare occasions.  
12. The lamp becomes extremely hot during 
operation. Allow the projector to cool for 
approximately 45 minutes prior to removing 
the lamp assembly for replacement. 
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							8 Safety, regulatory and legal information  
English  
Safety instructions (continued)
13. Never attempt to replace the lamp assembly 
until the projector has cooled down and is 
unplugged from the power supply. 
14. When you think service or repair is required, 
take the projector only to a suitably qualified 
technician.   
15. Do not attempt to disassemble this projector. 
There are dangerous high voltages inside 
which may cause death if you should come 
into contact with live parts. The only user 
serviceable parts are the lamp and air filters 
which have their own removable covers or 
access panels. See page 33.
Under no circumstances should you ever 
undo or remove any other covers. Refer 
servicing only to suitably qualified 
professional service personnel.   16. Do not store the projector on end vertically. 
Doing so may cause the projector to fall over, 
causing injury or resulting in damage.  
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  9
  Overview
EnglishOverview
Shipping contents
The projector is shipped with the cables required for connection to a video and PC equipment.Some of the 
items may not be available depending on your region of  purchase. Please check with your place of purchase.
Some of the accessories may vary from region to region. 
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 down in 
the direction of the arrow as illustrated. The 
cover will slide off. 
2. Remove any existing batteries (if necessary)  and install two new 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 case and sliding it back up into position. Stop when it clicks into place. 
Notes on handling batteries
• Do not mix old batteries with new ones, or mix different types of batteries.
• 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.
• Dispose of used batteries according to the batter y manufacturer’s instructions and local environment 
regulations for your region.
• If the remote control will not be used for an extended period of time, remove the batteries to avoid damage  to the control from possible battery leakage.
Projector Cable panel-connector 
coverRemote 
control batteries User’s 
manualWa r r a n t y  
card
 US (110V) EU (220V) UK (240V) Australia Japan
Dust filter  Component  Vide cable Power cable
PE8720
CT
ENTER12
3
P
E87
2 0
8720
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							10 Overview  
EnglishBenQ PE8720 projector features
•Highest picture quality
This single Dark Chip 3 DLP™ projector provides excellent picture quality due to its high resolution, 
excellent home theatre brightness, super high contrast ratio, vivid color and rich gray-scale reproduction.
•Super-high contrast ratio
This projector utilizes a motorized aperture C.A.T. lens to achieve a contrast ratio of at least 4400:1 (and 
up to 6200:1 in High Contrast mode). 
•Vivid color reproduction
This projector features an 8-segment color wheel to produce realistic color depth and range unattainable 
with lesser segment color wheels. 
•Rich gray-scale
When viewed in a darkened environment, the automatic gamma control provides excellent gray-scale 
display which reveals details in shadows and in night or darkened scenes.
•Dynamic performance
This model projector features a refresh rate of up to 300 Hz which provides excellent dynamic 
performance and eliminates the color flicker or rainbow effect associated with DL projectors.
•Extra-low noise operation
This projectors unique cooling system design prevents unnecessary fan noise, and is rated at less than 
25dB in normal mode and a low 23 dB when in Whisper mode.
•Sealed optical engine
The optical engine uses a high-quality 1:1.35x lens for maximizing optical performance. The sealed light 
path prevents light leakage, enhancing your viewing experience in darkened viewing environments, and 
prevents the dirtying of the optical path which can cause annoying blurring or spots in the projected 
image. 
•Motorized lens shift, focus and zoom
The remote control can be used to adjust vertical lens shift, picture focus, and picture zoom size, all  from 
the comfort of your armchair, which is particularly useful if the projector has been ceiling mounted and 
accessibility to its panel controls is difficult or awkward.
•Wide variety of inputs and video formats
The projector supports a wide variety of inputs for connection to your video and PC equipment, 
including component video, S-Video, and composite video, as well as HDMI, RGBHD, and an output 
trigger for connection to automated screen and environment lighting systems. 
•Digital TV compatibility
The projector is compatible with Standard Definition TV (SDTV) 480i, 480p, 576i, and High Definition 
TV (HDTV) 576p, 720p and 1080i formats, with the 720p format providing a true 1:1 image 
reproduction. 
•De-interlacing (with NTSC 3:2 pull-down)
Using BenQs proprietary de-interlacing technology utilizing Farouda DCDi processing, this projector 
provides excellent scaling and film-to-video (NTSC 3:2 pull-down) conversion for the most artifact-free 
images possible.
•PIP/POP function
The Picture-In-Picture (PIP) and Picture-On-Picture (POP) functions allow you to display two inputs 
on the screen at the same time. 
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