BenQ MX822ST, MX766, MW767 user manual Maintenance, Care of the projector

Page 86

Maintenance

Care of the projector

Your projector needs little maintenance. The only thing you need to do on a regular basis is to keep the lens and case clean.

Never remove any parts of the projector except the lamp. Contact your dealer if other parts need replacing.

Cleaning the lens

Clean the lens whenever you notice dirt or dust on the surface.

Use a canister of compressed air to remove dust.

If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens cleaner and gently wipe the lens surface.

Never use any type of abrasive pad, alkaline/acid cleaner, scouring powder, or volatile solvent, such as alcohol, benzene, thinner or insecticide. Using such materials or maintaining prolonged contact with rubber or vinyl materials may result in damage to the projector surface and cabinet material.

Never rub the lens with abrasive materials.

Cleaning the projector case

Before you clean the case, turn the projector off using the proper shutdown procedure as described in "Shutting down the projector" on page 70 and unplug the power cord.

To remove dirt or dust, wipe the case with a soft, lint-free cloth.

To remove stubborn dirt or stains, moisten a soft cloth with water and a neutral pH detergent. Then wipe the case.

Never use wax, alcohol, benzene, thinner or other chemical detergents. These can damage the case.

Storing the projector

If you need to store the projector for an extended time, please follow the instructions below:

Make sure the temperature and humidity of the storage area are within the recommended range for the projector. Please refer to "Specifications" on page 96 or consult your dealer about the range.

Retract the adjuster feet.

Remove the battery from the remote control.

Pack the projector in its original packing or equivalent.

Transporting the projector

It is recommended that you ship the projector with its original packing or equivalent.

86 Maintenance

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Contents MX766/MW767/MX822ST Digital Projector Table of contents Do not look straight at Important safety instructionsSafety Instructions Projector lens during operationSafety Instructions Do not block the ventilation holes Safety Instructions Projector features IntroductionShipping contents Optional accessories Projector exterior view Front/upper sideRear/lower side MX822STControls and functions Volume /Arrow keys / Left, / RightPower/POWER indicator light Keystone/Arrow keys / Up DownMounting the projector Zoom + Remote controlVolume /Arrow keys / Left Right TestAuto Operating the laser pointerHdmi MIC/VOL +Replacing the remote control battery Choosing a location Set Rear Ceiling in the System Setup BasicPositioning your projector Front TableObtaining a preferred projected image size MW767 Projection dimensionsMX766 Max length Inch Max. zoom Min. zoomMX822ST Connection Operation System Minimum Hardware Requirements Connecting a computer or monitor Connecting a computerConnecting a monitor To connect the projector to a monitorTo connect the projector to an Hdmi source device Connecting Video source devicesConnecting an Hdmi source device Connecting a Component Video source device To connect the projector to a Component Video source deviceConnecting an S-Video/composite source device To connect the projector to an S-Video/Video source deviceConnecting with document camera Operation Starting up the projectorAuto-adjusting the image Adjusting the projected imageAdjusting the projection angle Using build-in test pattern Fine-tuning the image size and clarityCorrecting keystone MODE/ENTER . The Keystone correctionUsing the menus Language and press Enter toSetting a password Using a security cable lockUtilizing the password function If you forget the passwordEntering the password recall procedure Changing the passwordChanging Color Space Switching input signalDisabling the password function Magnifying and searching for details Selecting the aspect ratio About the aspect ratioSelecting a picture mode Optimizing the imageUsing Wall Color Fine-tuning the image quality in user modesAdjusting Brilliant Color Adjusting TintAdjusting Sharpness Selecting a Color TemperaturePress MODE/ENTER and the 3D Color Management page displays Setting the presentation timer To cancel the timer, perform the following stepsFreezing the image Remote paging operationsHiding the image Operating in a high altitude environment Adjusting the soundAdjusting the sound level Muting the soundPersonalizing the projector menu display Turning off the Power on/off ring toneAdjusting the microphone’s sound level Select the lamp saver mode Until the System Setup Advanced menu is highlightedUse Teaching Template Controlling the projector through a LAN environment Configuring the Wired LAN SettingsConfiguring the Wireless LAN Settings 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 Web Control Lock Using the Projection Login CodeImage File Types Using the broadcassting functionPresenting From a USB Reader PreparationControlling USB Reader PressPress Settings Remote Desktop Control through Q Presenter Enter PointDraw Pen Shutting down the projectorMenu operation Menu systemSystem Setup Basic CC1/CC2/CC3/CC4 Dhcp Description of each menu Display menu3D Mode 3D Sync InvertPicture mode on page 39 for details Picture menuPicture menu Source menu System Setup Basic menu Auto Power Off Direct Power OnSignal Power On Blank TimerSee PointDraw Pen on page 70 for details System Setup Advanced menu Closed Caption Enable Caption VersionNetwork Wired LANWireless LAN MicrophoneResolution System Setup Advanced menu Information menuPicture Mode SourceMaintenance Care of the projectorLamp information Setting Lamp Mode eco function as Economic or SmartEco modeSetting Auto Power Off Getting to know the lamp hourPage Timing of replacing the lamp Status MessageReplacing the lamp Page Resetting the lamp timer Tighten the screws that secure LampLamp events IndicatorsLight Status & Description Thermal IC #2 I2C Connection error Thermal Sensor 2 open errorThermal Sensor 2 short error Troubleshooting Specifications Dimensions Ceiling mount installation Ceiling mount screw M4 Max L = 25 mm Min L = 20 mm Unit mmWall mount installation Minimum installation requirementsMinimum Ceiling Height mm = f + H + b + 60 + 262.2+ c Timing chart Supported timing for PC inputSupported timing for Hdmi input Supported timing for Component-YPbPrinput Supported timing for Video and S-Video inputsPC timing Supported 3D signal for Hdmi Hdcp inputVideo timing Supported 3D signal for D-SUB input Supported 3D signal for Video and S-Video input Patents Warranty and Copyright informationLimited warranty Copyright