BenQ Ms502 Users Manual

Operation 21
Securing the projector
Using a security cable lock
The projector has to be installed in a safe place to prevent theft. Otherwise, purchase a 
lock, such as the Kensington lock, to secure the projector. You can locate a Kensington 
lock slot on the rear side of the projector. See item 20 on page 9 for details.
A Kensington security cable lock is usually a combination of key(s) and the lock. Refer to 
the lock’s documentation for finding out how to use it.
Utilizing the password function
For...

Operation 22
If you forget the password
If the password function is activated, you will be asked 
to enter the six-digit password every time you turn on 
the projector. If you enter the wrong password, the 
password error message as pictured to the right 
displays lasting for 3 seconds, and the INPUT 
PA S S WO R D message follows. You can retry by 
entering another six-digit password, or if you did not 
record the password in this manual, and you absolutely do not remember it, you can use 
the password...

Operation 23
Changing the password
1. Open the OSD menu and go to the SYSTEM SETUP: Advanced> Security 
Settings  > Change Password  menu.
2. Press  MODE/ENTER. The message  “INPUT CURRENT PASSWORD”  
appears.
3. Enter the old password.
i. If the password is correct, another message  “INPUT NEW PASSWORD” 
displays. 
ii. If the password is incorrect, the password error message displays lasting for  three seconds, and the message  “INPUT CURRENT PASSWORD”  displays 
for your retry. You can press  MENU/EXIT...

Operation 24To select the source:
1. Press SOURCE on the projector or remote 
control. A source selection bar displays. 
2. Press / until your desired signal is selected 
and press MODE/ENTER.
Once detected, the selected source information 
will display at the corner of the screen for 
seconds. If there is multiple equipment 
connected to the projector, repeat steps 1-2 to 
search for another signal.
•  The brightness level of the projected image will change accordingly when you switch between different...

Operation 25 With the advent of digital signal processing, digital display devices like this projector can 
dynamically stretch and scale the image output to a different aspect than that of the image 
input signal.
To change the projected picture ratio (no matter what aspect the source is):
1.
Press MENU/EXIT and then press / until the DISPLAY menu is highlighted.
2. Press  to highlight Aspect Ratio.
3. Press  /  to select an aspect ratio to suit the format of the video signal and your 
display...

Operation 263.4:3: Scales an image so that it is displayed 
in the center of the screen with a 4:3 
aspect ratio. This is most suitable for 4:3 
images like some computer monitors, 
standard definition TV and 4:3 aspect DVD 
movies, as it displays them without aspect 
alteration.
4:3 picture
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Operation 27
Optimizing the image
Using Wall Color
In the situation where you are projecting onto a colored surface such as a painted wall 
which may not be white, the Wall Color feature can help correct the projected picture’s 
colors to prevent possible color difference between the source and projected pictures.
To use this function, go to the DISPLAY > Wall Color menu and press  /  to select 
a color which is closest to the color of the projection surface. There are several 
precalibrated colors to...

Operation 286. Press  to select a menu item to be changed and adjust the value with /. See 
Fine-tuning the image quality in user modes below for details.
7. When all settings have been done, highlight Save Settings and press MODE/
ENTER to store the settings.
8. The confirmation message “Setting Saved” displays.
Fine-tuning the image quality in user modes
According to the detected signal type, there are some user-definable functions available 
when User 1 or User 2 is selected. Based on your needs, you...

Operation 29 There are many different shades that are considered to be white for various purposes. 
One of the common methods of representing white color is known as the “color 
temperature”. A white color with a low color temperature appears to be reddish white. A 
white color with a high color temperature appears to have more blue in it.
3D Color Management
In most installation situations, color management will not be necessary, such as in 
classroom, meeting room, or lounge room situations where...

Operation 30
Saturation is the amount of that color in a video picture. Lower settings produce less saturated colors; a 
setting of “0” removes that color from the image entirely. If the saturation is too high, that color will be 
overpowering and unrealistic.
6. Press  to highlight Gain and adjust its values to your preference by pressing  /
. The contrast level of the primary color you select will be affected. Every 
adjustment made will reflect to the image immediately. 
7. Repeat steps 3 to 6 for...