BenQ Mx661 Users Manual

Operation 31
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 three seconds, and the message 
INPUT PASSWORD 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
326. You have successfully assigned a new password 
to the projector. Remember to enter the new 
password next time the projector is started.
7. To leave the OSD menu, press MENU/EXIT.
Disabling the password function
To disable password protection, go back to the SYSTEM SETUP: Advanced > 
Security Settings > Power on lock menu after opening the OSD menu system. Select 
Off by pressing  /. The message INPUT PASSWORD displays. Enter the current 
password. 
• If the password is correct, the OSD...

Operation 33
• The input signal type effects the options available for the Picture Mode. See Selecting a 
picture mode on page 35 for details.
• For best display picture results, you should select and use an input signal which outputs at 
this resolution. Any other resolutions will be scaled by the projector depending upon the 
aspect ratio setting, which may cause some image distortion or loss of picture clarity. See 
Selecting the aspect ratio on page 34 for details.
Changing Color Space
In the...

Operation
34
The picture can only be navigated after the picture is magnified. You can further magnify the 
picture while searching for details.
Selecting the aspect ratio
The aspect ratio is the ratio of the image width to the image height. Most analog TV and 
computers are in 4:3 ratio,and digital TV and DVDs are usually in 16:9 or 16:10 ratio.
With the advent of digital signal processing, digital display devices like this projector can 
dynamically stretch and scale the image output to a different...

Operation 35
Optimizing the image
Selecting a picture mode
The projector is preset with several predefined 
picture modes so that you can choose one to suit 
your operating environment and input signal 
picture type.
To select an operation mode that suits your need, 
you can follow one of the following steps.
•Press MODE/ENTER on the remote control 
or projector repeatedly until your desired mode is selected.
• Go to the PICTURE > Picture Mode menu and press  /  to select a desired 
mode.
The picture...

Operation
36
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 
color 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 the closest to the color of the projection surface. There are several 
precalibrated colors to choose from: Light...

Operation 37 *About color temperatures:
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.
Setting a preferred color temperature
To set a preferred color temperature:
1. Highlight Color Temperature and select Wa r m, Normal or Cool...

Operation
38Please refer to the illustration to the right 
for how the colors relate to each other.
For example, if you select Red and set its 
range at 0, only pure red in the projected 
picture will be selected. Increasing its range 
will include red close to yellow and red close 
to magenta.
5. Press   to highlight Saturation and adjust 
its values to your preference by pressing  /
. Every adjustment made will reflect to 
the image immediately.
For example, if you select Red and set its 
value at 0,...

Operation 39
Setting the presentation timer
The presentation timer can indicate the presentation 
time on the screen to help you achieve better time 
management when giving presentations. Follow these 
steps to utilize this function:
1. Press Timer Set up on the remote control or 
go to the SYSTEM SETUP: Basic > 
Presentation Timer menu and press MODE/
ENTER to display the Presentation Timer 
page.
2. Highlight Timer Period and decide the timer 
period by pressing  / . The length of time can be set from...

Operation
401. Go to the 
SYSTEM SETUP: Basic > Presentation Timer menu and highlight 
Off.
Press MODE/ENTER. A confirmation message displays.
2. Highlight Yes and press MODE/ENTER to confirm. You will see the message 
“Timer is Off!” displaying on the screen.
How to use the Timer On key?
Timer On is a multi-functional key.
• If the presentation timer is off, pressing this key 
displays a confirmation message. You can decide 
whether to activate the timer or not by 
following the on-screen instruction.
•...