BenQ Mx815st/mx815st+/mx816st/mw817st Digital Projector User Manual

							Introduction 11
Remote control
1. POWER
Toggles the projector between standby 
mode and on.
2.  Freeze
Freezes the projected image.
3. Left
4. SMART ECO
Displays the lamp mode selection bar.
5. ECO BLANK
Used to hide the screen picture.
6. Digital Zoom (+, -)
Magnifies or reduces the projected picture 
size.
7. Volume +/-
Adjusts the sound level.
8. MENU/EXIT
Turns on the On-Screen Display (OSD) 
menu. Goes back to previous OSD menu, 
exits and saves menu settings.9. Keystone/Arrow keys ( / Up, 
/Down)
Manually corrects distorted images 
resulting from an angled projection.
10. Auto
Automatically determines the best 
picture timings for the displayed image.
11. Right
When the On-Screen Display (OSD) 
menu is activated, the #3, #9, and #11 
keys are used as directional arrows to 
select the desired menu items and to 
make adjustments.
12. SOURCE
Displays the source selection bar.
13. MODE/ENTER
Selects an available picture setup mode.
Activates the selected On-Screen 
Display (OSD) menu item.
14. Timer On
Activates or displays an on-screen timer 
based on your own timer setting.
15. Timer Set up
Enters presentation timer setting 
directly.
16. PAGE UP/PAGE DOWN
Operate your display software program 
(on a connected PC) which responds to 
page up/down commands (like Microsoft 
PowerPoint).
1
8
9
9
10
11
14
15
16
12
13
2
3
5
4
7
6 
						

							Introduction 12
Remote control effective range
Infra-Red (IR) remote control sensors are located on the front and 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 8 meters (~ 26 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.
Replacing the remote control battery
1. Pull out the battery holder.
Please follow the illustrated instructions. Push and hold the locking 
arm while pulling out the battery holder.
2. Insert the new battery in the holder. Note the 
positive polarity should face outward.
3. Push the holder into the remote control.
•  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 
manufacturers 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
App
ro
x.
 +
1
5º
•  Operating the projector from the rear
App
ro
x.
 +
1
5º 
						

							Positioning your projector 13
Positioning your projector
Choosing a location
Your projector is designed to be installed in one of four possible installation locations: 
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. Front Table
Select this location with the projector 
placed on the table 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 
Mount 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 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 Mount Kit 
are required for this installation location.
Set Rear Ceiling in the SYSTEM 
SETUP: Basic > Projector Position 
menu after you turn the projector on.
4. Rear Table
Select this location with the projector 
placed on the table 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. 
						

							Positioning your projector 14
Obtaining 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.
Projection dimensions
Refer to Dimensions on page 54 for the center of lens dimensions of this projector 
before calculating the appropriate position.
MX815ST/MX815ST+/MX816ST
The screen aspect ratio is 4:3 and the projected picture is 4:3
For example, if you are using an 120-inch screen, the recommended projection distance is 
1481 mm and the vertical offset is 274 mm.
If your measured projection distance is 2.5 m (2500 mm), the closest match in the (b) 
Distance from screen column is 2469 mm. Looking across this row shows that a 200 
(about 5.1 m) screen is required.
(a)
(b)Center of lens Screen
(c)
(a) Screen size(b) Distance from screen
(mm)(c) Vertical offset
(mm)DiagonalHeight
(mm)Width
(mm)
Inchesmm
80 2032 1219 1626 988 183
100 2540 1524 2032 1235 229
120 3048 1829 2438 1481 274
150 3810 2286 3048 1852 343
180 4572 2743 3658 2222 411
200 5080 3048 4064 2469 457
220 5588 3353 4470 2716 503
240 6096 3658 4877 2963 549
270 6858 4115 5486 3333 617
300 7620 4572 6096 3704 686 
						

							Positioning your projector 15
MW817ST
The screen aspect ratio is 16:10 and the projected picture is 16:10
For example, if you are using an 120-inch screen, the recommended projection distance is 
1263 mm and the vertical offset is 81 mm.
If your measured projection distance is 2.5 m (2500 mm), the closest match in the (b) 
Distance from screen column is 2526 mm. Looking across this row shows that a 240 
(about 6.1 m) screen is required.
All measurements are approximate and may vary from the actual sizes. 
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.
(a)
(b)Center of lens Screen
(c)
(a) Screen size(b) Distance from screen
(mm)(c) Vertical offset
(mm)DiagonalHeight
(mm)Width
(mm)
Inchesmm
80 2032 1077 1723 842 54 
100 2540 1346 2154 1053 67 
120 3048 1615 2585 1263 81 
150 3810 2019 3231 1579 101 
180 4572 2423 3877 1895 121 
200 5080 2692 4308 2105 135 
220 5588 2962 4739 2316 148 
240 6096 3231 5169 2526 162 
270 6858 3635 5816 2842 182 
300 7620 4039 6462 3158 202  
						

							Connection 16
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.
•  The connection illustrations below are for reference only. The rear connecting jacks available on the 
projector vary with each projector model.
1. VGA cable
2. VGA to DVI-A cable
3. USB cable
4. HDMI cable
5. Component Video to VGA (D-Sub) 
adapter cable6. Audio L/R cable
7. S-Video cable
8. Video cable
9. Audio cable
999121364578
Notebook or desktop computer
Speakers
orA/V device
Monitor
(DVI) (VGA)
or 
						

							Connection 17
•  Many notebooks do not turn on their external video ports when connected to a projector. Usually a key 
combo 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 notebook. Press FN and the labeled function key 
simultaneously. Refer to your notebooks documentation to find your notebooks key combination.
•  The D-Sub output only works when an appropriate D-Sub input is made to the COMPUTER 1 jack.
•  If you wish to use this connection method when the projector is in standby mode, make sure the 
Monitor Out function is turned on in the SYSTEM SETUP: Advanced menu. See Standby Settings 
on page 43 for details.
Connecting video source devices
You need only connect the projector to a video source device using just one of the 
connecting methods, however each provides a different level of video quality. The method 
you choose will most likely depend upon the availability of matching terminals on both the 
projector and the video source device as described below:
Connecting audio
The projector has one built-in mono speaker which is designed to provide basic audio 
functionality accompanying data presentations for business purposes only. It is not designed 
for, nor intended for stereo audio reproduction use as might be expected in home theater 
or home cinema applications. Any stereo audio input (if provided), is mixed into a common 
mono audio output through the projector speaker.
The built-in speaker will be muted when the AUDIO OUT jack is connected.
•  In the unlikely event that you connect the projector to a DVD player via the projector’s HDMI input and 
the projected picture displays wrong colors, please change the color space to YUV. See Changing Color 
Space on page 25 for details.
•  The projector is only capable of playing mixed mono audio, even if a stereo audio input is connected. See 
Connecting audio on page 17 for details.
•  If the selected video image is not displayed after the projector is turned on and the correct video source 
has been selected, check that the video source device is turned on and operating correctly. Also check 
that the signal cables have been connected correctly.
Te r m i n a l  n a m eTerminal appearancePicture quality
HDMI
Best
Component Video
Better
S-Video
Good
Video
Normal 
						

							Operation 18
Operation
Starting up the projector
1. Plug the power cord into the projector and into a 
power outlet. Turn on the power outlet switch 
(where fitted). Check that the POWER indicator 
light on the projector lights orange after power 
has been applied.
Please use the original accessories (e.g. power cord) only with the 
device to avoid possible dangers such as electric shock and fire.
2. Press  POWER on the projector or   ON on the remote control to start the 
projector. As soon as the lamp lights up, a Pow e r  O n  To n e will be heard. The 
POWER indicator light flashes green and stays green when the projector is on.
The start up procedure takes about 30 seconds. In the later stage of start up, a 
startup logo is projected.
(If necessary) Rotate the focus ring to adjust the image clearness.
To turn off the ring tone, see Turning off the Power On/Off Ring Tone on page 34 
for details.
If the projector is still hot from previous activity, it will run the cooling fan for approximately 90 seconds 
before energizing the lamp.
3. If the projector is activated for the first time, 
select your OSD language following the on-
screen instructions.
4. If you are prompted for a password, press the 
arrow keys to enter a six-digit password. See 
Utilizing the password function on page 22 for 
details.
5. Switch all of the connected equipment on.
6. The projector will start to search for input 
signals. The current input signal being scanned 
displays in the upper left corner of the screen. If 
the projector doesnt detect a valid signal, the message “No Signal” will continue 
displaying until an input signal is found.
You can also press SOURCE on the projector or remote control to select your 
desired input signal. See Switching input signal on page 25 for details.
If the frequency/resolution of the input signal exceeds the projectors operating range, you will see the 
message “Out of Range” displayed on a blank screen. Please change to an input signal which is compatible with 
the projectors resolution or set the input signal to a lower setting. See Timing chart on page 58 for details. 
						

							Operation 19
Adjusting the projected image
Adjusting the projection angle
The projector is equipped with 1 quick-release adjuster foot and 1 rear adjuster foot. 
These adjusters change the image height and projection angle. To adjust the projector:
1. Press the quick-release button and lift the 
front of the projector. Once the image is 
positioned where you want it, release the 
quick-release button to lock the foot in 
position.
2. Screw the rear adjuster foot to fine-tune the 
horizontal angle.
To retract the foot, hold up the projector while 
pressing the quick-release button, then slowly lower 
the projector. Screw the rear adjuster foot in a 
reverse direction.
If the projector is not placed on a flat surface or the 
screen and the projector are not perpendicular to 
each other, the projected image becomes 
trapezoidal. To correct this situation, see Switching 
input signal on page 25 for details.
Auto-adjusting the image
In some cases, you may need to optimize the picture quality. To do this, press Auto on the 
projector or remote control. Within 3 seconds, the built-in Intelligent Auto Adjustment 
function will re-adjust the values of Frequency and Clock to provide the best picture 
quality. 
The current source information will be displayed in the corner of the screen for 3 seconds.
This function is only available when PC signal (analog RGB) is selected.
Fine-tuning the image clarity
Sharpen the image by rotating the focus ring. 
21
Do not look into the lens while the 
lamp is on. The strong light from the 
lamp may cause damage to your eyes.
Be careful when you press the quick-
release button as it is close to the 
exhaust vent where hot air comes 
from. 
						

							Operation 20
Correcting keystone
Keystoning refers to the situation where the projected image is noticeably wider at either 
the top or bottom. It occurs when the projector is not perpendicular to the screen. 
To correct this, you will need to manually correct it following ONE of these steps.
•  Using the remote control
Press  /  on the projector or remote control 
to display the Keystone correction page. Press   
to correct keystoning at the top of the image. Press 
 to correct keystoning at the bottom of the 
image.
•  Using the OSD menu
1. Press MENU/EXIT and then press  /  until the DISPLAY menu is highlighted.
2. Press  to highlight Keystone and press MODE/ENTER. The Keystone 
correction page displays.
3. Press   to correct keystoning at the top of the image. Press   to correct 
keystoning at the bottom of the image.
Press/.Press /.