BenQ Projector SU931 User Manual

							SX930/SU931
Digital Projector
User Manual 
						

							2  Table of contents  
EnglishTable of contents
Important safety 
instructions ............................3
Overview................................6
Shipping contents...................................... 6
Remote control batteries ....................... 7
Remote control operation ..................... 7
Projector features.................................... 8
Projector exterior view .......................... 9
Controls and functions.......................... 10
Control panel ............................................... 10
Remote control............................................ 11
Positioning your 
projector ..............................12
Choosing a location ............................... 12
Obtaining a preferred projected 
image size ................................................. 13
Projection dimensions ................................ 14
Shifting the projection lens ........................ 16
Connecting to video 
equipment ...........................17
Preparations .................................................. 17
Connecting HDMI devices......................... 17
Connecting MHL devices ........................... 18
Connecting S-Video devices...................... 18
Connecting video devices .......................... 19
Connecting a computer ............................. 20
Connecting a monitor ................................ 20
Using the projector ............21
Turning the projector on ..................... 21
Selecting an input source ...................... 22
Using the menus ..................................... 23
Securing the projector .......................... 24
Using a security cable lock ........................ 24
Utilizing the password function ................ 24
Adjusting the projected image............. 27
Adjusting the projection angle ................. 27
Auto-adjusting the image ........................... 27Fine-tuning the image size and clarity ......27
Correcting picture distortion....................28
Using the preset and user modes ...... 30
Fine-tuning the picture quality ............ 33
Advanced picture quality controls ..... 34
Selecting the aspect ratio ..................... 37
Setting a wall color................................ 39
Hiding the image..................................... 39
Locking control keys ............................. 39
Freezing the image................................. 39
Adjusting the sound............................... 40
Using the test pattern ........................... 41
Using the teaching templates .............. 42
Setting the lamp mode .......................... 43
Controlling the projector through a 
Wired LAN environment .................... 44
Operating in a high altitude 
environment ............................................ 48
Turning the projector off ..................... 49
On-Screen Display (OSD) menus ...... 50
Additional information ...... 60
Care of the projector ........................... 60
Lamp information ................................... 61
Getting to know the lamp hour ................61
Extending lamp life .......................................61
Timing of replacing the lamp .....................62
Replacing the lamp .......................................63
Indicators........................................................66
Troubleshooting ..................................... 67
Specifications ........................................... 68
Warranty and Copyright 
information ......................... 74 
						

							  3
  Important safety instructions
EnglishThank you for your purchase of this quality BenQ 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.
Important safety instructions
Your 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.
1. Please read this user 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. Do not store the projector on end vertically. Doing so 
may cause the projector to fall over, causing injury or 
resulting in damage. 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, shorten the projector’s 
lifespan and darken the screen;
- locations near fire alarms;
- locations with an ambient temperature 
above 40°C/104°F;
- locations where altitude is higher than 1500 
meters/4920 feet above sea level.
4920-
9840 
feet 
						

							4 Important safety instructions  
English
5. Do not block the vents holes while 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. 9. Do not look straight into the projector lens 
during operation. It may harm your sight. 
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. 10. 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.
7. Do not step on the projector or place any objects 
upon it.11. The lamp becomes extremely hot during 
operation. Allow the projector to cool for 
approximately 45 minutes prior to removing the 
lamp assembly for replacement.
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.12. This projector is capable of displaying inverted 
images for ceiling mount installation. Use only 
BenQs Ceiling Mount Kit for mounting. 
						

							  5
  Important safety instructions
English
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 part is 
the lamp which has its own removable cover. See 
page 63.
Under no circumstances should you ever undo or 
remove any other covers. Refer servicing only to 
suitably qualified professional service personnel.
Notice
Please keep the original packing for possible future 
shipment. If you need to pack your projector after 
use, adjust the projection lens to an appropriate 
position, put the lens cushion around the lens, and 
fit the lens cushion and projector cushion together 
to prevent damage during transportation.
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 liquids
Do not use volatile liquids, such as insecticide or 
certain 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. 
						

							6 Overview  
English
Overview
Shipping contents
Carefully unpack and verify that you have the items below. 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.
The warranty card is only supplied in some specific regions. Please consult your dealer for detailed 
information.
ProjectorRemote controlBatteriesWarranty card
User manual CD
 
Digital ProjectorQuick Start Guide
Quick start guidePower cableVGA cable 
						

							  7
  Overview
EnglishRemote 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 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 hot or humid environment like the 
kitchen, bathroom, sauna, sunroom, or in a closed car.
•  Dispose of used batteries according to the battery 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.
Remote control operation
•  Make sure that there is nothing positioned 
between the remote control and the infrared 
(IR) sensors 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 30 degrees 
from the center of the IR beam. Always aim 
straight at the projector, however, most 
screens will also reflect the IR beam to the 
projector.
Ceiling mounting the projector
We want you to have a pleasant experience using your BenQ projector, so we need to bring this safety 
matter to your attention to prevent damage to person and property.
If you intend to mount your projector on the ceiling, we strongly recommend that you use a proper fitting 
BenQ projector ceiling mount kit and that you ensure it is securely and safely installed.
If you use a non-BenQ brand projector ceiling mount kit, there is a safety risk that the projector may fall 
from the ceiling due to an improper attachment through the use of the wrong gauge or length screws.
You can purchase a BenQ projector ceiling mount kit from the place you purchased your BenQ projector. 
BenQ recommends that you also purchase a separate Kensington lock compatible security cable and attach 
it securely to both the Kensington lock slot on the projector and the base of the ceiling mount bracket. This 
will perform the secondary role of restraining the projector should its attachment to the mounting bracket 
become loose.
Approx. +30 
						

							8 Overview  
EnglishProjector features
• WUXGA resolution
The projector is HDTV compatible with WUXGA resolution, providing 1920 x 1200 pixels at its 
native resolution. (for model SU931)
•  High picture quality
The projector provides excellent picture quality due to its high resolution, excellent home theater 
brightness, super high contrast ratio, vivid color and rich gray-scale reproduction.
• High brightness
The projector features super high brightness with only a single lamp, achieving excellent picture 
quality in ambient light conditions, outperforming ordinary single lamp projectors.
• 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.
•  Wide variety of inputs and video formats
The projector supports a wide variety of inputs for connection to your video and PC equipment, 
including composite video, S-Video, HDMI, PC, and an output trigger for connection to automated 
screen and environment lighting systems. 
•  3D function supported
The projector supports 3D format signals and allows you to enjoy 3D movies, videos, and sporting 
events in a more realistic way.
• Built-in teaching template
The projector comes with built-in teaching templates, including letter formation, worksheet and 
coordinate chart, to make teaching easier.
•  Corner fit correction
A flexible and convenient way to correct picture distortion by adjusting each corner of an image 
independently when projecting on restricted or uneven space. 
						

							  9
  Overview
EnglishProjector exterior view
Front and upper side view 
Rear and lower view 
1. Control panel (See Control panel on page 10 
for details.)
2. Lens shift cover
3. Lamp cover
4. Vent (heated air exhaust)
5. Adjustable feet
6. Projection lens
7. Lens cap
8. Vent (cold air intake)
9. Front IR remote sensor
10. Zoom and Focus rings1
2
8
6
5
3
4
9
10
5
7
11. Rear IR remote sensor
12. RJ45 LAN input jack
13. USB Mini-B port
14. USB Type A port
15. HDMI-2 port
16. HDMI-1/MHL port
17. RGB (PC)/Component video (YPbPr/YCbCr) 
signal input jack
18. RGB signal output jack
19. RS-232 control port
Used to interface with a PC or home theater 
control/automation system.
20. S-Video input jack
Video input jack
21. Audio (L/R) input jack
22. Audio input jack
Audio output jack
Microphone jack
23. 12VDC output terminal
Used to trigger external devices such as an 
electric screen or light control, etc. Consult 
your dealer for how to connect these devices.
24. AC power jack
25. Kensington lock slot
26. Ceiling mount holes
24
26
26
25
26
26
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55
See Connecting to video equipment on page 17 
for connection details. 
						

							10 Overview  
EnglishControls and functions
Control panel
7. MODE/ENTER
When On-Screen Display (OSD) is off, 
sequentially selects a predefined picture setting 
available for each input.
When OSD is on, enacts to selected OSD 
menu item.
8. BLANK
Used to blank the projected image.
9. POWER indicator light
Lights up or flashes when the projector is 
operating.
10. TEMP Temperature warning light 
Lights up or flashes if the projectors 
temperature becomes too high.
11. LAMP indicator light
Lights up or flashes when the projector lamp 
has developed a problem.
12. AUTO
Automatically determines the best picture 
timings for the displayed image under PC 
source.
13./Up
Increases vertical keystone value. 
When the On-Screen Display (OSD) is 
activated, move to the upper item.
14. / Right
Increases horizontal keystone value.
When the On-Screen Display (OSD) is 
activated, move to the left item.
15. SOURCE
Switches to the next source.
16. / Down
Decreases vertical keystone value.
When the On-Screen Display (OSD) is 
activated, move to the next item. 1. Focus ring
Adjusts the focus of the projected image.
2. Zoom ring
Adjusts the size of the projected image.
3. Lens shift cover
Access to the lens shift knob. Please see 
Shifting the projection lens on page 16 for 
details.
4. MENU/EXIT
Toggles the On-Screen Display (OSD) menu on 
and off.
Goes back to previous OSD menus, exits and 
saves any changes made using the On-Screen 
Display (OSD) menu.
5.  POWER
Performs the same action as POWER on the 
remote control.
Toggles the projector between standby and on.
6. / Left
Decreases horizontal keystone value.
When the On-Screen Display (OSD) is 
activated, move to the left item.
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