BenQ MX620ST user manual Maintenance, Care of the projector

Page 48

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. Please be sure to turn off the projector and let it cool down completely before cleaning the lens.

•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 37 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 56 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.

48 Maintenance

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Contents MS619ST/MX620ST/MW621ST Table of contents Important safety instructions Safety InstructionsSafety Instructions 3000 m Feet Ceiling mounting the projector Projector features IntroductionShipping contents Projector exterior view Front/upper side Rear/lower sideControls and functions Remote control Remote control effective range Replacing the remote control batteriesPositioning your projector Choosing a locationFront Table Front CeilingProjection dimensions Obtaining a preferred projected image sizeScreen size Distance from screen mm Diagonal LengthMW621ST Connection ConnectionConnecting video source devices Connecting audioTerminal name Terminal appearance BestOperation Starting up the projectorAdjusting the projected image Adjusting the projection angleAuto-adjusting the image Fine-tuning the image size and clarityCorrecting keystone Using the menus Below is the overview of the OSD menuUsing a security cable lock Utilizing the password functionSetting a password Highlight Change Security Settings and press MODE/ENTERIf you forget the password Entering the password recall procedureChanging the password Switching input signal Disabling the password functionMagnifying and searching for details Changing Color SpaceSelecting the aspect ratio About the aspect ratio MS619ST/ MW621STUsing Wall Color Selecting a picture modeSetting the User 1/User 2 mode Go to the Picture Picture Mode menuFine-tuning the image quality in user modes Adjusting Brilliant ColorSelecting a Color Temperature Setting a preferred color temperature 3D Color ManagementSetting the presentation timer Resetting current or all picture modesSelection Description To cancel the timer, perform the following steps Remote paging operationsFreezing the image Top-Left Bottom-Left Top-Right Bottom-RightTo activate the High Altitude Mode Hiding the imageLocking control keys Operating in a high altitude environmentAdjusting the sound Using the test patternAdjusting the sound level Turning off the Power On/Off Ring ToneUsing the teaching templates To select Blackboard or WhiteboardPresenting from a USB Reader Direct power off Shutting down the projectorMenu operation Menu systemMain menu Sub-menu Options Basic Advanced Description of each menu Apply 3D Settings Teaching Template Description3D Sync Invert Picture menu Function Description Picture Mode TemperatureReference ModeFine Tuning 3D Color Reset PictureSettings Quick Auto TimerSystem Setup Basic menu Function Description OperationRemote ReceiverSystem Setup Advanced menu Function Description High AltitudeAudio LampReset All StandbyNetwork CurrentMaintenance Care of the projectorLamp information Getting to know the lamp hourExtending lamp life Timing of replacing the lamp Status MessageReplacing the lamp Maintenance Resetting the lamp timer Indicators Light Status & Description Power eventsLamp events Thermal eventsTroubleshooting Specifications Projector specificationsDimensions Ceiling mount installationTiming chart Supported timing for PC inputSupported timing for Hdmi Hdcp input KHzSupported timing for Component-YPbPrinput TimingSupported timing for Video and S-Video inputs Warranty and Copyright information Limited warrantyCopyright Disclaimer