BenQ MX720 user manual Troubleshooting

Page 55

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 cord.

the projector, and plug the power cord into the

power outlet. If the power outlet has a switch,

 

 

make sure that it is switched on.

 

 

Attempting to turn the projector on again

Wait until the cooling down process has

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 signal

connected correctly.

cable is connected correctly.

 

 

The projector is not correctly connected

Check the connection.

to the input signal device.

 

 

 

The input signal has not been correctly

Select the correct input signal with the SOURCE

selected.

key on the projector or remote 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 ring.

focused.

 

 

 

The projector and the screen are not

 

Adjust the projection angle and direction as well

aligned properly.

 

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 battery is out of power.

Replace the battery with new ones.

There is an obstacle between the remote

Remove the obstacle.

control and the projector.

 

You are too far away from the projector.

Stand within 8 meters (26 feet) of the projector.

The password is incorrect

 

Cause

Remedy

 

 

You do not remember the password.

Please see "Entering the password recall

procedure" on page 24 for details.

 

Troubleshooting 55

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Contents MX720/MW721 Digital Projector Table of contents Safety Instructions Important safety instructionsSafety Instructions 3000 m Feet Ceiling mounting the projector Introduction Projector featuresShipping contents Front/upper side Rear/lower side Projector exterior viewProjector Controls and functionsRemote control Replacing the remote control batteries Remote control effective rangeFront Ceiling Positioning your projectorChoosing a location Front TableMX720 Obtaining a preferred projected image sizeMW721 Connection ConnectionConnecting audio Connecting video source devicesPlaying sound through the projector Audio output port About the microphone inputStarting up the projector OperationFine-tuning the image clarity Adjusting the projected imageAdjusting the projection angle Auto-adjusting the imageCorrecting keystone Below is the overview of the OSD menu Using the menusIf you forget the password Using a security cable lockUtilizing the password function Setting a passwordChanging the password Entering the password recall procedureDisabling the password function Changing Color Space Switching input signalSelecting the aspect ratio Magnifying and searching for detailsMX720 MW721 About the aspect ratioGo to the Picture Picture Mode menu Using Wall ColorSelecting a picture mode Setting the User 1/User 2 modeAdjusting Brilliant Color Fine-tuning the image quality in user modesSelecting a Color Temperature 3D Color Management Setting a preferred color temperatureResetting current or all picture modes Setting the presentation timerSelection Description Top-Left Bottom-Left Top-Right Bottom-Right To cancel the timer, perform the following stepsRemote paging operations Freezing the imageOperating in a high altitude environment To activate the High Altitude ModeHiding the image Locking control keysUsing the test pattern Adjusting the soundTurning off the Power On/Off Ring Tone To select Blackboard or Whiteboard Using the teaching templatesShutting down the projector Direct power offMenu system Menu operationMain menu Sub-menu Options Basic Main menu Sub-menu Options System Setup Advanced Operation Description of each menu Fine Tuning 3D Color Picture menu Function Description Picture ModeTemperature Color TemperatureSearch TimerInstallation SettingsReceiver System Setup Basic menu Function DescriptionOperation RemoteLamp System Setup Advanced menu Function Description HighAltitude AudioNetwork System Setup Advanced menu Function DescriptionReset All StandbySystem CurrentStatus Care of the projector MaintenanceGetting to know the lamp hour Lamp informationExtending lamp life Status Message Timing of replacing the lampReplacing the lamp Connect the power and restart the projector Resetting the lamp timer Thermal events IndicatorsLight Status & Description Power events Lamp eventsTroubleshooting Projector specifications SpecificationsCeiling mount installation DimensionsSupported timing for PC input Timing chartKHz Supported timing for Hdmi Hdcp input Supported timing for Video and S-Video inputs Supported timing for Component-YP bP r inputTiming Disclaimer Warranty and Copyright informationLimited warranty Copyright
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MX720 specifications

The BenQ MX720 and MW721 are two versatile projectors designed to meet the demands of educational and corporate environments, providing high performance and remarkable features that enhance presentations and classroom interactions.

Starting with the BenQ MX720, this projector boasts a maximum brightness of 4000 ANSI lumens, ensuring that images remain clear and vibrant even in well-lit rooms. Its native XGA (1024x768) resolution is complemented by a high contrast ratio of 13,000:1, which produces crisp images and detailed visuals. The MX720 employs DLP technology, known for its reliability and color accuracy, making it an ideal choice for presentations that require excellent image quality.

The MX720 also features a range of connectivity options, including HDMI, VGA, and USB ports, enabling users to easily connect various devices such as laptops, document cameras, and media players. With a 1.1x optical zoom lens, the projector allows flexible installation and easy adjustments to image size, ensuring that users can achieve the perfect projection for any setting.

On the other hand, the BenQ MW721 offers a higher resolution of WXGA (1280x800), making it suitable for displaying widescreen content. This projector also provides an impressive brightness level of 4000 ANSI lumens and a similar high contrast ratio of 13,000:1, ensuring excellent image quality across different lighting conditions. The DLP technology used in the MW721 contributes to sharp visuals and vibrant colors, making it a great option for movies, presentations, and detailed graphics.

Both projectors incorporate features like SmartEco technology, which adjusts lamp power dynamically to extend the lamp life while reducing energy consumption. This smart management prolongs the lifespan of the lamp to up to 10,000 hours, resulting in cost savings over time.

In addition, both models come equipped with 3D support, providing an immersive experience that can be leveraged for educational purposes or engaging presentations. The intuitive user interface of the projectors also simplifies setup and operation, allowing educators and professionals to focus more on their content and less on technology.

In summary, the BenQ MX720 and MW721 are powerful projectors that deliver exceptional image quality, versatility in connectivity, and advanced technologies. They cater to a wide range of environments, making them ideal tools for both education and professional presentations. Their combination of performance, reliability, and user-friendly features ensures that they meet the needs of modern users effectively.
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