Troubleshooting

The projector does not turn on.

Cause

Remedy

 

Plug the power cord into the AC power jack on

There is no power from the power

the projector, and plug the power cord into the

cord.

power outlet. If the power outlet has a switch,

 

make sure that it is switched on.

Attempting to turn the projector on

Wait until the cooling down process has

again during the cooling process.

completed.

No picture

 

Cause

Remedy

The video source is not turned on or

Turn the video source on and check that the

connected correctly.

signal cable is connected correctly.

The projector is not correctly

Check the connection.

connected to the input signal device.

 

The input signal has not been

Select the correct input signal with the

SOURCE key on the projector or remote

correctly selected.

control.

 

The lens cover is still closed.

Open the lens cover.

Blurred image

 

Cause

Remedy

The projection lens is not correctly

Adjust the focus of the lens using the focus

focused.

ring.

The projector and the screen are not

Adjust the projection angle and direction as

aligned properly.

well as the height of the projector if necessary.

The lens cover is still closed.

Open the lens cover.

Remote control does not work

 

Cause

Remedy

The batteries are out of power.

Replace the batteries with new ones.

There is an obstacle between the

Remove the obstacle.

remote control and the projector.

 

You are too far away from the

Stand within 8 meters (26 feet) of the

projector.

projector.

The password is incorrect

 

Cause

Remedy

You do not remember the password.

Please see "Entering the password recall

procedure" on page 28 for details.

 

Troubleshooting 71

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BenQ MX812ST, MW811ST user manual Troubleshooting

MX812ST, MW811ST specifications

The BenQ MW811ST and MX812ST are two powerful projectors designed for education and business presentations, offering multiple features that enhance the viewing experience. Both models showcase BenQ's commitment to delivering exceptional image quality and user-friendly functionalities.

Starting with the MW811ST, this projector boasts a WXGA resolution of 1280x800 pixels, providing a widescreen aspect ratio perfect for displaying HD content. With a brightness of 3000 ANSI lumens, it ensures vibrant images even in well-lit environments. The short-throw capability of this model allows users to project large images from a short distance, making it ideal for smaller classrooms and meeting rooms. The lens produces a screen size of up to 100 inches from only a short distance of about 1.5 meters, maximizing space efficiency.

The MW811ST also features BenQ's exclusive SmartEco technology, which intelligently adjusts lamp power and brightness according to the content being displayed. This results in significant power savings and prolonged lamp life, reducing total cost of ownership. The projector provides lamp life of up to 6000 hours in eco mode, ensuring extended usage between replacements. Additionally, it supports 3D content, providing a more immersive experience for viewers.

On the other hand, the BenQ MX812ST is equipped with XGA resolution of 1024x768 pixels. It offers a similar brightness of 3200 ANSI lumens, delivering clear visuals in various lighting conditions. Like the MW811ST, the MX812ST features short-throw projection capabilities, making it suitable for tight environments where space is limited. The projector can display a large image from a short distance, emphasizing convenience and practicality.

The MX812ST also includes essential features such as the SmartEco technology for energy efficiency and extended lamp life. Both models seamlessly integrate with an array of devices, including laptops and streaming devices, ensuring versatile compatibility in various presentation settings. Additionally, the user-friendly interface and remote control simplify navigation for users, making the projector easy to operate.

In conclusion, the BenQ MW811ST and MX812ST projectors deliver outstanding image quality, flexibility, and convenience, making them excellent choices for educators and professionals. Their robust features, integrated technologies, and energy-efficient designs position them as reliable tools for delivering effective and engaging presentations.