BenQ MX766, MW767 Operating in a high altitude environment, Adjusting the sound, Muting the sound

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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 / to 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 adjusents made as below will have an effect on the projector speaker(s). Be sure you have made a correct connection to the projector audio input. See "Connection" on page 21 for how the audio input is connected.

Muting the sound

To adjust the sound level, press MUTE on the remote control, or:

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 select On.

Adjusting the sound level

To adjust the sound level, press / / / on the remote control or on the projector, or:

1. Repeat steps 1-2 above.

2. Highlight VOLUME and select a desired sound level.

Operation 45

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Contents MX766/MW767/MX822ST Digital Projector Table of contents Safety Instructions Important safety instructionsDo not look straight at Projector lens during operationSafety Instructions Do not block the ventilation holes Safety Instructions Introduction Projector featuresShipping contents Optional accessories Front/upper side Projector exterior viewMX822ST Rear/lower sidePower/POWER indicator light Volume /Arrow keys / Left, / RightControls and functions Keystone/Arrow keys / Up DownMounting the projector Volume /Arrow keys / Left Right Remote controlZoom + TestHdmi Operating the laser pointerAuto MIC/VOL +Replacing the remote control battery Positioning your projector Set Rear Ceiling in the System Setup BasicChoosing a location Front TableObtaining a preferred projected image size MX766 Projection dimensionsMW767 Max length Inch Max. zoom Min. zoomMX822ST Connection Operation System Minimum Hardware Requirements Connecting a computer Connecting a computer or monitorTo connect the projector to a monitor Connecting a monitorConnecting Video source devices Connecting an Hdmi source deviceTo connect the projector to an Hdmi source device To connect the projector to a Component Video source device Connecting a Component Video source deviceTo connect the projector to an S-Video/Video source device Connecting an S-Video/composite source deviceConnecting with document camera Starting up the projector OperationAdjusting the projected image Adjusting the projection angleAuto-adjusting the image Fine-tuning the image size and clarity Using build-in test patternMODE/ENTER . The Keystone correction Correcting keystoneLanguage and press Enter to Using the menusUtilizing the password function Using a security cable lockSetting a password If you forget the passwordChanging the password Entering the password recall procedureSwitching input signal Disabling the password functionChanging Color Space Magnifying and searching for details About the aspect ratio Selecting the aspect ratioOptimizing the image Selecting a picture modeFine-tuning the image quality in user modes Using Wall ColorAdjusting Sharpness Adjusting TintAdjusting Brilliant Color Selecting a Color TemperaturePress MODE/ENTER and the 3D Color Management page displays To cancel the timer, perform the following steps Setting the presentation timerRemote paging operations Hiding the imageFreezing the image Adjusting the sound level Adjusting the soundOperating in a high altitude environment Muting the soundTurning off the Power on/off ring tone Adjusting the microphone’s sound levelPersonalizing the projector menu display Until the System Setup Advanced menu is highlighted Select the lamp saver modeUse Teaching Template Configuring the Wireless LAN Settings Configuring the Wired LAN SettingsControlling the projector through a LAN environment If you are in a Dhcp environmentControlling the projector remotely through a web browser Through Q Presenter on page 59 for details Page Page Iii Page Page Page Page Displaying image through Q Presenter Iii Iii Vii Using the Projection Login Code Using the Web Control LockPresenting From a USB Reader Using the broadcassting functionImage File Types PreparationPress Controlling USB ReaderPress Settings Remote Desktop Control through Q Presenter Enter Shutting down the projector PointDraw PenMenu system Menu operationSystem Setup Basic CC1/CC2/CC3/CC4 Dhcp Display menu Description of each menu3D Sync Invert 3D ModePicture menu Picture mode on page 39 for detailsPicture menu Source menu System Setup Basic menu Signal Power On Direct Power OnAuto Power Off Blank TimerSee PointDraw Pen on page 70 for details System Setup Advanced menu Caption Version Closed Caption EnableWireless LAN Wired LANNetwork MicrophonePicture Mode System Setup Advanced menu Information menuResolution SourceCare of the projector MaintenanceSetting Auto Power Off Setting Lamp Mode eco function as Economic or SmartEco modeLamp information Getting to know the lamp hourPage Status Message Timing of replacing the lampReplacing the lamp Page Tighten the screws that secure Lamp Resetting the lamp timerIndicators Light Status & DescriptionLamp events Thermal Sensor 2 open error Thermal Sensor 2 short errorThermal IC #2 I2C Connection error Troubleshooting Specifications Dimensions Ceiling mount screw M4 Max L = 25 mm Min L = 20 mm Unit mm Ceiling mount installationMinimum installation requirements Wall mount installationMinimum Ceiling Height mm = f + H + b + 60 + 262.2+ c Supported timing for PC input Timing chartSupported timing for Hdmi input Supported timing for Video and S-Video inputs Supported timing for Component-YPbPrinputSupported 3D signal for Hdmi Hdcp input Video timingPC timing Supported 3D signal for D-SUB input Supported 3D signal for Video and S-Video input Limited warranty Warranty and Copyright informationPatents Copyright