BenQ Sp830/sp831 Digital Projector User Manual

							Introduction 11
Projector exterior view
1. Quick-release foot
2. Projection lens
3. Lens cap
4. External control panel
(See pages 12-13 for details.)
5. Focus ring and Zoom ring
6. Vent (cool air intake)
7. Front IR remote sensor
8. Quick-release button
9. AC power cord inlet
10. Main power switch
11. Speaker grill
12. Ceiling mounting holes
13. Lamp cover
14. RS232 control port
15. Rear IR remote sensor
16. Wired remote control port
17. Video/Audio (L/R) input 
sockets
18. Component video (YPbPr/ 
YCbCr) signal/Audio (L/R) 
input sockets
19. S-Video/Audio (L/R) input 
sockets
20. USB socket
21. RJ-45/Audio input sockets
(only for using with the 
optional Signal Shuttle 
module)
22. DVI-I signal/PC Audio input 
sockets
23. D-Sub (RGB) signal/PC Audio 
input sockets
24. D-Sub (RGB) signal/Audio (L/
R) output sockets
25. Vent (heated air exhaust)
26. Kensington anti-theft lock slot
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Rear/lower side 
						

							12 Introduction
Controls and functions
Projector
1. Focus ring
Adjusts the focus of the projected 
picture. See Fine-tuning the picture 
size and clarity on page 36 for details.
2. Zoom ring
Adjusts the size of the picture. See 
Fine-tuning the picture size and 
clarity on page 36 for details.
3. Power indicator light
Lights up or flashes when the projector 
is under operation. See Indicators on 
page 73 for details.
4. MENU
Turns on the On-Screen Display (OSD) 
menu. When the OSD menu is 
activated, exits and saves the menu 
settings. See Using the menus on page 
31 for details.
5. Power
Toggles the projector between standby 
mode and on.
See Starting up the projector on page 
30 and Shutting down the projector 
on page 57 for details.6. MODE
Depending upon which input source is 
selected, selects an available picture 
setup mode. See Picture Mode on 
page 61 for details.
7. SOURCE
Displays the source selection bar and 
makes selection. See Switching input 
source on page 35 for details.
8. AUTO
Automatically determines the best 
picture timings for the displayed 
picture.
See Auto-adjusting the picture on 
page 36 for details.
9. Temperature warning light
Lights up if the projectors temperature 
becomes too high. See Indicators on 
page 73 for details.
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							Introduction 13
Remote control
10. Lamp indicator light
Indicates the status of the lamp. Lights 
up when the lamp has developed a 
problem. See Indicators on page 73 
for details.
11. EXIT
Goes back to previous OSD menus, 
exits and saves menu settings. See 
Using the menus on page 31 for 
details.
12. Keystone/Arrow keys ( / ,  / )
Split Screen/Arrow keys ( / ,  /
)
Manually corrects distorted pictures 
resulting from an angled projection.
Turns the split screen function on or 
off.
When the On-Screen Display (OSD) 
menu is activated, the keys are used as 
directional arrows to select the desired 
menu items and to make adjustments.
See Correcting picture distortion on 
page 37, Displaying more than one 
picture source simultaneously on page 
51, and Using the menus on page 31 
for details.
13. BLANK
Used to hide the screen picture. See 
Hiding the picture on page 50 for 
details.
14. ENTER
Enacts the selected On-Screen Display 
(OSD) menu item. See Using the 
menus on page 31 for details.1. Power
Toggles the projector between standby 
mode and on.
See Starting up the projector on page 
30 and Shutting down the projector 
on page 57 for details.
2. ASPECT
Selects the display aspect ratio. See 
Selecting the aspect ratio on page 39 
for details.
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							14 Introduction3. SOURCE 
Displays the source selection bar. See 
Switching input source on page 35 for 
details.
4. Keystone/Arrow keys ( / ,  / , 
/, /)
Manually correct distorted pictures 
resulting from an angled projection.
When the On-Screen Display (OSD) 
menu is activated, the keys are used as 
directional arrows to select the desired 
menu items and to make adjustments.
See Correcting picture distortion on 
page 37 and Using the menus on page 
31 for details.
5. MENU
Turns on the On-Screen Display (OSD) 
menu. When the OSD menu is 
activated, exits and saves the menu 
settings. See Using the menus on page 
31 for details.
6. AUTO
Automatically determines the best 
picture timings for the displayed 
picture. See Auto-adjusting the 
picture on page 36 for details.
7. ENTER
Enacts the selected On-Screen Display 
(OSD) menu item. See Using the 
menus on page 31 for details.
8. SPLIT SCREEN (ON/OFF)
Turns the split screen function on or 
off. See Splitting the screen on page 
51 for details.
9. CAPTURE
Captures the projected picture and save 
it as your startup screen. See Creating 
your own startup screen on page 54 
for details.10. WIRELESS
(This function is not available with the 
SP830/S831.)
11. MUTE
Toggles projector audio between on 
and off.
12. PIP
Turns the Picture In Picture (PIP) 
window on or off. See PIP (Picture In 
Picture) operation on page 52 for 
details.
13. AUDIO
Displays the Audio menu. See 
Adjusting the sound on page 55 for 
details.
14. Indicator light
Flashes or lights red when any key on 
the remote control is pressed.
15. MODE
Depending upon which input source is 
selected, selects an available picture 
setup mode. See Selecting a picture 
mode on page 42 for details.
16. FREEZE
The picture is frozen when FREEZE is 
pressed. See Freezing the picture on 
page 56 for details.
17. KEY LOCK
Locks the keys on the projector and 
remote control except LASER and 
EXIT. See Locking control keys on 
page 56 for details.
18. EXIT
Goes back to previous OSD menus, 
exits and saves menu settings. See 
Using the menus on page 31 for 
details.
19. BLANK
Used to hide the screen picture. See 
Hiding the picture on page 50 for 
details. 
						

							Introduction 15 20. LASER
Emits visible laser pointer light for 
presentation purposes. See Operating the 
LASER pointer on the right for details.
21. PAGE 
 (UP) and PAGE  (DOWN)
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 56 for details.
22. DIGITAL ZOOM keys (+, -)
Magnifies or reduces the projected picture 
size. See Magnifying and Searching for 
details on the projected picture on page 
41 for details.
23. Source selection keys (DVI, D-SUB, 
VIDEO, COMP., S-VIDEO)
Select the corresponding input source for 
display. See Switching input source on 
page 35 for details.
DVI selects DVI-D signal only.
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.
Making the remote control a wired 
control
The remote control is equipped with a jack on 
the top allowing connection to the projector 
with a 2.5mm mini jack cable available in the 
market. This helps you easily locate the remote 
control when needed as it is connected to the 
projector and within the distance no greater 
than the cable’s length. 
						

							16 Introduction
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 6 meters (~ 20 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.
• Operating the projector from the front
• Operating the projector from the rear
Installing 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.
Ap
pr
ox
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15°
Ap
pr
ox
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15° 
						

							Positioning your projector 17
3. Positioning your projector
Choosing a location
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.
The projector is designed to be installed in one of four possible installation locations. 
*To set the projector position:
1. Press MENU on the projector or remote control and 
then press  /  until the System Setup menu is 
highlighted.
2. Press  /  to highlight Projector Position and press 
/  until the correct position is selected.
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 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 Ceiling Front after you turn the 
projector on.3. Ceiling Rear
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 Ceiling Rear after you turn the 
projector on.
4. 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 after you turn the projector 
on.
Language
Splash Screen
My Screen
Projector Position
Blank Timer
Auto Off
Sleep Timer
Background Color
Menu Settings
Input SourceSystem Setup
Analog RGB
English
BenQ
Disable
Auto Source Search
EXIT   Back
Disable
Disable
Blue
On Floor Front 
						

							18 Positioning your projector
Obtaining a preferred projected picture size
The distance from the projector lens to the screen, the zoom setting, and the video format, 
each factors in the projected picture size.
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 picture 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 20, that this type of projection causes the bottom edge 
of the projected picture to be vertically offset from the horizontal plane of the projector. 
When ceiling mounted, this refers to the top edge of the projected picture.
If the projector is positioned further away from the screen, the projected picture 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 picture size and the vertical offset dimension, which are directly 
proportional to the projection distance.
BenQ has provided tables of 16:9-aspect-ratio and 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).
How to determine the position of the projector for a given 
screen size
1. Determine the aspect ratio of your screen, 16:9 or 4:3? If you have a 16:9 screen, refer 
to Table A
. If you have a 4:3 screen, refer to Table B1 or Table B2 depending on the 
projected picture aspect ratio you’ve got.
2. Select a screen size you desire. 
3. Refer to the table and find the closest match to your screen size in the left columns 
labelled Screen Dimensions. 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.
4. 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. 
						

							Positioning your projector 19 5. 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 3 
above, and offset by the value determined in step 4 above.
For example, if you are using an 120-inch, 4:3-aspect-ratio screen and the projected picture 
is 15:9, please refer to Table B2
. The average projection distance is 4133.7 mm and with a 
vertical offset of 146 mm.
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. Determine the aspect ratio of the screen you need, 16:9 or 4:3? If you need a 16:9 
screen, refer to Table A
. If you need a 4:3 screen, refer to Table B1 or Table B2 
depending on the projected picture aspect ratio you’ve got.
2. Measure the distance between the projector and where you want to position the 
screen. This is the projection distance.
3. Refer to that 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.
4. Using this value, look across that row to the left to find the corresponding Screen 
Dimensions listed in that row. That is the recommended screen size you can purchase 
at that projection distance.
5. 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 you need a 16:9 screen to project a 16:9 picture and your measured 
projection distance was 4.8 m (4800 mm), please refer to Table A
. The closest match in the 
Average column is 4508 mm. Looking across this row shows that a 120 (3.0 m) screen is 
required. 
						

							20 Positioning your projector
Projection dimensions
Refer to Dimensions on page 78 for the center of lens dimensions of this projector before 
calculating the appropriate position.
When the screen aspect ratio is 16:9 and the projected picture is 16:9
Table A: The screen aspect ratio is 16:9 and the projected picture is 16:9
Screen DimensionsDistance from Screen in mmVe r t i c a l  
Offset
DiagonalHeightWidthMin length 
(max. zoom)Av e r a g eMax length 
(min. zoom)
mmFeetInchesmmmmmm
2.5 30 762 457 610 1043 1127 1210 46
4.2 50 1270 762 1016 1739 1878 2017 76
6.7 80 2032 1219 1626 2783 3005 3228 122
8.3 100 2540 1524 2032 3478 3757 4035 152
10.0 120 3048 1829 2438 4174 4508 4842 183
12.5 150 3810 2286 3048 5217 5635 6052 229
15.0 180 4572 2743 3658 6261 6762 7263 274
16.7 200 5080 3048 4064 6957 7513 8070 305
18.3 220 5588 3353 4470 7652 8264 8877 335
20.0 240 6096 3658 4877 8348 9016 9683 366
Maximum zoom Minimum zoom
Projection distanceCenter of lens Screen
Offset
Floor Installation
Maximum zoom Minimum zoomProjection distance
Center of lens
Screen Offset
Ceiling Installation