1.Go to the SYSTEM SETUP: Basic > Panel Key Lock menu, and select On by

pressing / on the projector or remote control. A confirmation message displays.

2.Highlight Yes and press MODE/ENTER to confirm.

To release panel key lock, use the remote control to enter the SYSTEM SETUP: Basic > Panel Key Lock menu and press / to select Off.

• Keys on the remote control are still active when panel key lock is enabled.

If you press POWER to turn off the projector without disabling panel key lock, the projector will still be in locked status the next time it is turned on.

Operating in a high altitude environment

We recommend you use the High Altitude Mode when your environment is between 1500 m –3000 m above sea level, and ambient temperature is between 0°C–35°C.

Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and ambient temperature is between 0°C and 35°C. The projector will be over cooled, if you turn the mode on under such a condition.

To activate the High Altitude Mode:

1.Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted.

2.Press to highlight High Altitude Mode and press / select On. A confirmation message displays.

3.Highlight Yes and press MODE/ENTER.

Operation under "High Altitude Mode" may cause a higher decibel operating noise level because of increased fan speed necessary to improve overall system cooling and performance.

If you use this projector under other extreme conditions excluding the above, it may display auto shut-down symptoms, which is designed to protect your projector from over- heating. In cases like this, you should switch to High Altitude mode to solve these symptoms. However, this is not to state that this projector can operate under any and all harsh or extreme conditions.

Adjusting the sound

The sound adjustments made as below will have an effect on the projector speakers. Be sure you have made a correct connection to the projector audio input. See "Connection" on page 15 for how the audio input is connected.

Muting the sound

To temporarily turn off the sound:

1.Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted.

2.Press to highlight Audio Settings and press MODE/ENTER. The Audio Settings page displays.

3.Highlight Mute and press / to select On.

Adjusting the sound level

To adjust the sound level, press VOLUME-/VOLUME+or / , or:

1.Repeat steps 1-2 above.

32 Operation

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Image 32
BenQ MS502, MX503 user manual Operating in a high altitude environment, Muting the sound, Adjusting the sound level

MX503, MS502 specifications

BenQ MX503 and MS502 are exemplary projectors that cater to the educational and office sectors with their cutting-edge features and technologies. These models are designed to offer exceptional projection quality and ease of use, ensuring that presentations, lectures, and meetings are impactful and engaging.

The BenQ MX503 boasts a native XGA resolution of 1024 x 768 pixels, providing crystal-clear images that enhance visual presentations. With a remarkable brightness of 3,000 ANSI lumens, it ensures that visuals remain vibrant and visible even in well-lit environments. The contrast ratio of 13,000:1 allows for deeper blacks and brighter whites, ensuring a more dynamic range in color representation. The projector is equipped with the Super Eco Mode technology, which reduces power consumption significantly, extending the lamp life to up to 10,000 hours, promoting energy efficiency.

On the other hand, the BenQ MS502 features SVGA resolution of 800 x 600 pixels, making it a more economical option while still delivering quality imagery suitable for various presentations. With a brightness of 3,000 ANSI lumens, the MS502 also guarantees visibility in diverse lighting conditions. Its contrast ratio reaches 2000:1, offering solid color depth and clarity, ideal for educational settings.

Both projectors incorporate 3D display technology, allowing users to present 3D content seamlessly, enhancing the learning experience and audience engagement. The easy installation feature, along with vertical keystone correction, simplifies the setup process, accommodating various room layouts.

Connectivity is another highlight of the MX503 and MS502 projectors, as they come with multiple input options, including VGA, HDMI, and USB ports, facilitating easy connection with laptops, desktop computers, and other multimedia devices. The intuitive user interface further streamlines navigation and operation.

In summary, the BenQ MX503 and MS502 projectors offer valuable features, including high brightness, energy-efficient operation, versatile connectivity, and superior image quality. They cater specifically to the needs of educational institutions and professional environments, making them reliable choices for anyone looking to enhance their presentation delivery. With a focus on performance and user-friendliness, these projectors stand out in their category, meeting demanding visual presentation needs effectively.