BenQ MW851UST, MX850UST user manual Maintenance, Care of the projector

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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.

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 39 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 58 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. When you carry the projector yourself, please use the original box.

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Contents Welcome Table of contents Refer servicing to qualified service personnel Important safety instructionsSafety Instructions Safety Instructions Locations where the altitudes are higher Locations near fire alarmsLocations with an ambient temperature Confined. Allow at least 50 cm clearanceInstallation Inverted images for ceiling mountIntroduction Projector featuresIntroduction Shipping contents Projector exterior view Front/upper side Rear/lower sideControls and functions Projector Test Remote controlON/OFF Keystone/Arrow buttons / Up DownMIC/VOL + Operating the Laser pointerMute Numeric buttonsRemote control effective range Replacing the remote control batteryFront Ceiling Positioning your projectorChoosing a location Projection dimensions Obtaining a preferred projected image size808 Screen Size Distance from Screen in mmDiagonal Inches 1524 1778 1508 942Connection Terminal name Terminal appearance Connecting video source devicesConnecting audio BestAbout the microphone input Audio Settings Microphone Volume menuPlaying sound through the projector DeviceOperation OperationStarting up the projector Fine-tuning the image clarity Adjusting the projected imageAuto-adjusting the image Correcting keystoneUse / to highlight the System Setup Basic menu Using the menusFollowing example describes how to set the OSD language Setting a password Using a security cable lockUtilizing the password function Highlight Change Security Settings and press MODE/ENTERWrite down the number and turn off your projector If you forget the passwordEntering the password recall procedure Enter a new password Changing the passwordDisabling the password function Switching input signal Changing Color SpaceMagnifying and searching for details Selecting the aspect ratioScreen with a 169 aspect ratio Projectors native resolution in its Displayed in the centerAbout the aspect ratio Aspect alterationSetting the User 1/User 2 mode Using Wall ColorSelecting a picture mode Go to the Picture Picture Mode menuFine-tuning the image quality in user modes 3D Color Management Press To highlight Saturation and adjust itsEvery adjustment made will reflect to Range at 0, only pure red in the projectedCount Up Increases from 0 to the preset time Count Down Setting the presentation timerTo cancel the timer, perform the following steps Selection DescriptionHiding the image Remote paging operationsFreezing the image Locking control keysCreating your own startup screen To activate the High Altitude ModeOperating in a high altitude environment Cable connection Adjusting the soundControlling the projector through a LAN environment Controlling the projector remotely through a web browser If you are in a non-DHCP environmentIiii Iiiv Press Exit to go back to the remote network operation Direct power off Shutting down the projectorMain menu Sub-menu Options Menu operationMenu system Min/25 min/30 min System Setup BasicSleep Timer Hr/8 hr/12 hrAdvanced Description of each menu Save Settings Picture ModeTemperature Display menu Picture menu Function Description TeachingSearch TimerSettings Color SpacePanel Key Function DescriptionOperation LockAudio System Setup Advanced menu Function Description HighAltitude LampStandby System Setup Advanced menu Function DescriptionReset All NetworkSystem Information menu Function DescriptionCurrent StatusMaintenance Care of the projectorLamp information Setting Lamp Mode as EconomicSetting Auto Power Off Getting to know the lamp hourTiming of replacing the lamp Status MessageReplacing the lamp Use the handle to slowly pull the lamp out of the projector Time will be reset to Connect the power and restart the projectorResetting the lamp timer Lamp events IndicatorsLight Status & Description Power events Troubleshooting Specifications Projector specificationsDimensions Mm W x 236.9 mm H x 322.8 mm D 339 SpecificationsWall mount installation Minimum installation requirements975 1173 1189 1181 960 Wall plate Minimum Ceiling Height mm = f + H + b + 60 + 221+ cCeiling Timing chart Supported timing for PC inputSupported timing for Hdmi Hdcp input Horizontal Supported timing for Component-YPbPrinputTiming Supported timing for Video and S-Video inputs Copyright Warranty and Copyright informationLimited warranty Disclaimer