BenQ Mw870ust Users Manual

							Introduction 11
Controls and functions
Projector
6. AUTO
Automatically determines the best 
picture timings for the displayed image. 
See Auto-adjusting the image on page 
29 for details.
7. Power/POWER indicator light
Toggles the projector between standby 
mode and on.See Starting up the 
projector on page 28 for details.
Lights up or flashes when the projector is 
under operation. See Indicators on 
page 87 for detail.
8. TEMPerature indicator light
Lights up red if the projectors 
temperature becomes too high. See 
Indicators on page 87 for details.
9. Right/
When the On-Screen Display (OSD) 
menu is activated, the #2, #3, and #9 
keys are used as directional arrows to 
select the desired menu items and to 
make adjusents. See Using the menus 
on page 31 for details.
Activates panel key lock. See Locking 
control keys on page 43 for details.
10. LAMP indicator light
Indicates the status of the lamp. Lights up 
or flashes when the lamp has developed a 
problem. See Indicators on page 87 for 
details.
11. SOURCE
Displays the source selection bar. See 
Switching input signal on page 34 for 
details. 1. MENU/EXIT
Turns on the On-Screen Display (OSD) 
menu. Goes back to previous OSD menu, 
exits and saves menu settings.
2. Keystone/Arrow keys ( / Up,  /
Down)
Manually corrects distorted images 
resulting from an angled projection. See 
Correcting keystone on page 30 for 
details.
3. Left/
Starts the FAQ function. See Utilizing 
FAQ function on page 43 for details.
4. MODE/ENTER
Selects an available picture setup mode. 
See Selecting a picture mode on page 37 
for details.
Activates the selected On-Screen Display 
(OSD) menu item. See Using the menus 
on page 31 for details.
5. BLANK
Used to hide the screen picture. See 
Hiding the image on page 42 for details.
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							Introduction 12
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 possible damage to person 
and property.
If you intend to mount your projector on the ceiling or wall, we strongly recommend 
that you use a proper fitting BenQ projector ceiling mount kit or wall mount kit and 
that you ensure it is securely and safely installed.
If you use a non-BenQ brand projector mounting kit, there is a safety risk that the 
projector may fall from the ceiling or wall due to an improper attachment through 
the use of the wrong gauge or length screws.
You can purchase a BenQ projector ceiling mount or wall 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 mounting bracket. This will 
perform the secondary role of restraining the projector should its attachment to the 
mounting bracket become loose.
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							Introduction 13
Remote control
1. ON
Turns on the projector. See Starting up 
the projector on page 28 for details.
2. COMPUTER-1/COMPUTER-2
Displays RGB (PC)/Component video 
(YPbPr/ YCbCr) signal.
3. S-VIDEO
Displays S-video signal.
4. MENU/EXIT
Turns on the On-Screen Display (OSD) 
menu. Goes back to previous OSD menu, 
exits and saves menu settings. See Using 
the menus on page 31 for details.
5. BLANK
Used to hide the screen picture. See 
Hiding the image on page 42 for details.
6. Keystone/Arrow keys ( / Up,  /
Down)
Manually corrects distorted images 
resulting from an angled projection. See 
Correcting keystone on page 30 for 
details.7. MODE/ENTER
Selects an available picture setup
mode. See Selecting a picture mode on 
page 37 for details. 
Activates the selected On-Screen
Display (OSD) menu item. See Using 
the menus on page 31 for details.
8. Left/
Starts the FAQ function. See Utilizing 
FAQ function on page 43 for details.
9. ZOOM+/ZOOM-
Magnifies or reduces the projected 
picture size. See Magnifying and 
searching for details on page 35 for 
details.
10. PAGE UP/PAGE DOWN
Page up/down arrows when connected 
through USB to a PC. See Remote 
paging operations on page 42 for 
details.
11. FREEZE
Freezes the projected image. See 
Freezing the image on page 42 for 
details.
12. Network Setting
Enables Network Settings OSD menu.
13. TEST
Displays the test pattern. See Test 
Pattern on page 69 for details.
14. OFF
Turns off the projector. See Shutting 
down the projector on page 66 for 
details
15. VIDEO
Displays vidoe signal.
16. NETWORK
Enables the network mode.
17. SOURCE
Displays the source selection bar. See 
Switching input signal on page 34 for 
details.
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							Introduction 1418. AUTO
Automatically determines the best picture 
timings for the displayed image. See 
Auto-adjusting the image on page 29 for 
details.
19. Right/
When the On-Screen Display (OSD) 
menu is activated, the #6, #8, and #19 
keys are used as directional arrows to 
select the desired menu items and to 
make adjusents. See Using the menus on 
page 31 for details.
Activates panel key lock. See Locking 
control keys on page 43 for details.
20. LASER
Emits visible laser pointer light for 
presentation purposes.
21. VOLUME+/VOLUME-
Adjusts the projector’s sound level. See 
Adjusting the sound on page 44 for 
details.
22. MUTE
Toggles projector audio between on and 
off. See Muting the sound on page 44 
for details.23. ASPECT
Selects the display aspect ratio. See 
Selecting the aspect ratio on page 36 
for details.
24. MIC/VOL
Adjusts the microphone’s sound level. 
See  for details. See Adjusting the 
microphone’s sound level on page 45 for 
details.
25. CAPTURE
Captures current displayed screen to be 
MyScreen. See Setting the presentation 
timer on page 41 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 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.
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							Introduction 15 Infra-Red (IR) remote control sensor is located on the front of the projector. The remote 
control must be held at an angle within 22.5 degrees perpendicular to the projectors IR 
remote control sensor to function correctly. The distance between the remote control 
and the sensor should not exceed 8 meters (~ 26 feet).
Make sure that there are no obstacles between the remote control and the IR sensor on 
the projector that might obstruct the infra-red beam.
Replacing the remote control battery
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 comparent. 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 excessive heat and humidity. 
• There may be battery damage if the battery is incorrectly replaced. 
• Replace only with the same or equivalent type recommended by the battery manufacturer.
• Dispose of the used battery according to the battery manufacturer’s instructions.
• Never throw a battery into a fire. There may be danger of an explosion. 
• If the battery is dead or if you will not be using the remote control for a long time, remove 
the battery to prevent damage to the remote control from possible battery leakage. • Operating the projector from the front • Operating the projector from the rear
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							Positioning your projector 16
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.
Your projector is designed to be installed in one of four possible installation locations: 
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.
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							Positioning your projector 17
Obtaining a preferred projected image size
The distance from the projector lens to the screen, the zoom setting (if available), and the 
video format each factors in the projected image 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 image distortion caused by angled projections (or projecting onto 
angled surfaces). 
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 19, 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 proportional to 
the projection distance.
BenQ has provided a table of 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).
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							Positioning your projector 18
How to determine the position of the projector 
for a given screen size
1. Select your screen size.
2. Refer to the table on page 19 and find the closest match to your screen size in the 
left columns labelled Screen size. Using this value, look across this row to the right 
to find the corresponding distance from screen value in the column labelled 
Distance from screen (mm). This is the projection distance.
3. On that same row, look across to the right column and make note of the Vertical 
offset (mm) 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 projection distance is 991 mm and 
with a vertical offset of 202 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. Measure the distance between the projector and where you want to position the 
screen. This is the projection distance.
2. Refer to the table on page 19 and find the closest match to your measurement in the 
column labelled Distance from screen (mm). 
3. Using this value, look across that row to the left to find the corresponding Screen 
size 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 (mm) 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 is 2.0 m (2000 mm), the closest match 
in the column is 1689 mm. Looking across this row shows that a 200-inch screen is 
required.
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 30 on page for details.
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							Positioning your projector 19
Projection dimensions
Refer to Dimensions on page 90 for the center of lens dimensions of this projector 
before calculating the appropriate 
position.
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.
Screen size
Distance from screen (mm)Vertical offset 
(mm)DiagonalW
(mm)H
(mm)
Inchmm
40 1016 862 538 294 67
50 1270 1077 673 381 84
60 1524 1292 808 468 101
80 2032 1723 1077 642 135
100 2540 2154 1346 817 168
120 3048 2585 1615 991 202
150 3810 3231 2019 1253 252
200 5080 4308 2692 1689 337
250 6350 5385 3365 2125 421
300 7620 6462 4039 2561 505
16:10 screen diagonal
Projection distanceCenter of lens Screen
Ve r t i c a l  o f f s e t
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							Connection 20
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.
• For detailed connection methods, see pages 22-27.
1. Audio cable 6. Video cable
2. VGA cable 7. S-Video cable
3. VGA to DVI-A cable 8. Component Video to VGA (DSub) adapter 
cable
4. USB B type to A type cable 
(Supports firmware upgrade/PD pen)
9. HDMI cable
5. USB mini-B type to A type cable 10. USB flash drive/HDD/wireless dongle/
keyboard/mouse
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