BenQ Projector MX852UST+ User Manual

							Positioning your projector 21
Obtaining a preferred projected image size
1. Wall mount
2. Dimension (include projector and wall mount)
Projection dimensions
Refer to Dimensions on page 24 for the center of lens dimensions of this 
projector before calculating the appropriate position.
MX852UST+
The screen aspect ratio is 4:3 and the projected picture is 4:3. 
Wh D
H
V
XGA
Screen 
size 
(Diago-
nal)Screen 
width 
(W)Screen 
Height 
(h)Projec-
tion dis-
tance (D)Offset (H)Scale 
param-
eterDistance 
between 
Wall plate 
& 
projection 
screen (V)
inchmminchmminchmminchmminchmmmm
68 1727 54 1382 40 1036 11.16 283.4 11.86 301.3 500 273.5
70 1778 55 1422 42 1067 11.91 302.4 12.15 308.5 515 280.7
75 1905 59 1524 45 1143 13.83 351.4 12.88 327.2 560 299.4
77 1956 61 1565 46 1173 14.62 371.4 13.18 334.8 585 307
80 2032 63 1626 48 1219 15.72 399.4 13.60 345.4 615 317.6
82 2083 65 1666 49 1250 16.51 419.4 13.90 353 635 325.2
85 2159 67 1727 51 1295 17.61 447.4 14.32 363.7 665 335.9 
						

							Positioning your projector
22
MW853UST+
The screen aspect ratio is 16:10 and the projected picture is 16:10. 
There is 5% 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 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 be st suits your installation location.
It is recommended to adjust focus 15 minutes after powering on due to the 
slight shifting of the lens from temperature changing.
WXGA
Screen  size 
(Diago- nal)Screen width 
(W)Screen Height 
(h)Projec-
tion dis-
tance (D)Offset (H)Scale 
param-
eterDistance between 
Wall plate  & 
projection 
screen (V)
inchmminchmminchmminchmminchmmmm
80 2032 67 1723 42 1077 11.11 282.3 11.81 300 495 274.7
85 2159 71 1831 45 1144 12.73 323.3 12.37 314.3 535 289
87 2210 73 1874 46 1171 13.40 340.3 12.61 320.2 555 294.9
90 2286 76 1939 47 1212 14.38 365.3 12.95 328.9 580 303.6
92 2337 77 1982 48 1239 15.01 381.3 13.17 334.4 600 309.1
95 2413 80 2046 50 1279 15.98 405.8 13.50 343 625 317.7
97 2464 81 2089 51 1306 16.65 422.8 13.74 348.9 645 323.6
100 2540 85 2154 53 1346 17.55 445.8 14.05 356.9 665 331.6 
						

							Positioning your projector 23
Limited lens shift specification  
To shift up the projection image, 
twist the adjuster counter 
clockwisre.To shift down the projection image, 
twist the adjuster clockwisre.
H
Hx4%
Hx4%
Hex Key(2.5mm) 
						

							Positioning your projector
24
Dimensions
287.5 mm (W)  x 201 mm (H) x 373.3 mm (D)
287.50
135.51
247.01
43.25149.25
255.25206.25
OPTICAL AXIS
360~665
141
235.0Regulating Range
0~30 Regulating Range
0~40195.0
137.0
55.0 55.0
3.0 12.5
170.0 195.0
7.0
227.9130.2
373.3
Wall Mount Installation Unit: mm
287.5 201 
						

							Connection25
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 11). They are commercially 
available from electronics stores.  
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.1. VGA cable
2. VGA to DVI-A cable
3. USB cable (B to A type)
4. HDMI cable
5. S-Video cable6. Video cable
7. Audio cable
8. Audio L/R cable
9. USB cable (mini B to A type)
10. USB cable (A to mini B type) 
connect to Laser Module PT01
476578
10
139217
Notebook or desktop computer
A/V device
Speakers Monitor
(VGA) (DVI)orPointWrite kit
PT01 
						

							Connection
26
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 are designed to provide 
basic audio functionality accompanyi ng data presentations for business 
purposes only. They are 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.
•  The projector is only capable of playing mixed mono audio, even if a 
stereo audio input is connected. See  Connecting audio on page 26 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 
						

							Connection27
Playing sound through the projector
You can make use of the projector (mixed mono) speaker in your 
presentations, and also connect separate amplified speakers to the AUDIO 
OUT socket of the projector.
If you have a separate sound system, you will most likely want to connect the 
audio output of your Video source device to that sound system, instead of to 
the mono audio projector.
Once connected, the audio can be controlled by the projector On-Screen 
Display (OSD) menus.
The table below describes the connection methods for different devices, and 
where the sound is from.
Device Computer/PC Component/
S Video/VideoHDMI
Audio input port AUDIO IN (mini 
jack)AUDIO (L/R) HDMI
The projector can play 
the sound from...AUDIO IN (mini 
jack)AUDIO (L/R) HDMI
Audio output port AUDIO OUT AUDIO OUT AUDIO OUT
The selected input signal determines which sound will be played by the projector 
speaker, and which sound will be output from the projector when AUDIO OUT is 
connected. If you select the COMPUTER/PC signal, the projector can play the 
sound received from AUDIO IN mini jack. If you select the COMPONENT/VIDEO 
signal, the projector can play the sound received from AUDIO (L/R). 
						

							Operation 28
Operation
Starting up the projector
1. Plug the power cord into the projector 
and into a wall socket. Turn on the wall 
socket 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 
cable) only with the device to avoid possible 
dangers such as electric shock and fire.
2. Press POWER on the projector   or remote control   to start 
the projector and a start up tone sounds. 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 48 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. To use the OSD menus, please set 
them to your familiar language first.
4. If you are prompted for a password, 
press the arrow keys to enter a five 
digit password. See Utilizing the 
password function on page 32 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 35 
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 
Please select language
Press Enter to confirm, Exit to leave 
						

							Operation29
projectors resolution or set the input signal to a lower setting. See Timing 
chart on page 77 for details.
To maintain the lamp life, once you turn the projector on, wait at least 5 
minutes before turning if off.
Using the quick install
The projector provides a hot key to set Projector 
Installation, Test Pattern, and Keystone quickly.
Press Quick Install on the remote control and press ▲/▼ 
to select:
•  Projector Installation: See 
Positioning your projector on page 20.
•  Test Pattern: See 
Using the test pattern on page 48.
• Keystone: See 
Correcting keystone on page 30.
Adjusting the projected image
Adjusting the projection angle
The projector is equipped with 3 adjuster feet. These adjusters change the 
image height and projection angle. To adjust the projector:
Screw adjuster foot to fine tune the 
horizontal angle.
To retract the foot, hold up the projector 
then slowly lower the projector. Screw the 
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 Correcting 
keystone on page 30 for details.
•  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 adjuster button as it is close to the exhaust 
vent where hot air comes from.
QUICK INSTALLProjector 
MENU Exit
Test Pattern
Keystone 
						

							Operation 30
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 upper left corner of 
the screen for 3 seconds. 
•  The screen will be blank while AUTO is functioning.
•  This function is only available when PC signal (analog RGB) is selected.
Fine-tuning the image size and clarity
Sharpen the image by rotating the FOCUS ring.
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, besides adjusting the height of the projector, you can use 
Auto Keystone or Key s t o n e 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 or press   to 
correct keystoning at the bottom of the image.
Press /.Press /.