BenQ MP723 user manual Maintenance, Care of the projector

Page 53

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 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 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 45 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 61 or consult your dealer about the range.

Retract the adjuster feet.

Remove the batteries 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 or provided soft carry case.

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Contents Welcome Table of contents Refer servicing to qualified service personnel Important safety instructionsFuture reference Projector lamp is on Do not look straight at the projectorSafety Instructions Resulting in damage to the projector Bedding or any other soft surfaceAllow at least 50 cm clearance from walls Ceiling mounting the projector Introduction Projector featuresIntroduction Shipping contents Lamp cover Projector exterior viewFront/upper side Rear/lower side Projector Controls and functionsCapture Remote controlOperating the Laser pointer Indicator light 22. D. Zoom +Approx.15 Remote control effective rangeReplacing the remote control batteries Positioning your projector Set Rear Ceiling in the System Setup BasicChoosing a location Front TableObtaining a preferred projected image size Page Screen Center of lens Projection distance Maximum zoom Minimum zoom1219 1500Connection Connecting a computer or monitorConnecting a computer Iii With a VGA cable With a VGA to DVI-A cable Connecting a monitorConnecting Audio Connecting Video source devicesBest video quality Better video qualityConnecting a DVI source device To connect the projector to a Component Video source device Connecting a Component Video source deviceDevice Connecting an S-Video source deviceTo connect the projector to an S-Video source device To connect the projector to a composite Video source device Connecting a composite Video source deviceOperation Projection lamp Press I I Power on the projector or remoteStarting up the projector OperationUse / to highlight the System Setup Basic menu Using the menusUtilizing the password function Using a security cable lockSecuring the projector Removing the control keypad on the projectorIf you forget the password Setting a passwordTo the Security Settings Respectively represent 4 digitsChanging the password Entering the password recall procedureDisabling the password function Enter a new passwordChanging Color Space Switching input signalAdjusting the projection angle Adjusting the projected imageAuto-adjusting the image Fine-tuning the image size and clarityCorrecting keystone On the projector or remote ControlAbout the aspect ratio Selecting the aspect ratioSelecting a picture mode Using Wall ColorPC/DVI-A/DVI-D Signal Input Optimizing the imageSetting the User 1/User 2 mode Fine-tuning the image quality in user modesAdjusting Brightness Adjusting ContrastAdjusting Tint Adjusting ColorAdjusting Sharpness Adjusting Brilliant Color3D Color Management Every adjustment made will reflect toYou want the timer to show up on the screen by Setting the presentation timerHow to use the Timer ON/SHOW button? To cancel the timer, perform the following stepsRemote paging operations Button is a multi-functional keyFreezing the image Hiding the imageLocking control keys Utilizing FAQ functionGo to the System Setup Basic Panel Key Lock Operating in a high altitude environment Setup Advanced High Altitude Mode, select OnCreating your own startup screen To activate the High Altitude Mode, go to the SystemAdjusting the sound level Adjusting the soundTurning off the Power on/off ring tone Personalizing the projector menu displayApproximately 90 seconds to cool down the projector Shutting down the projectorMenu system Menu operationAdvanced BasicSource menu Display menuPicture menu System Setup Basic menu System Setup Advanced menu Information menu Care of the projector MaintenanceSetting Auto Power Off Setting Lamp Mode as EconomicLamp information Getting to know the lamp hourTiming of replacing the lamp Replacing the lamp Loosen the screw that secures the lamp MaintenanceTighten the screw that secures the lamp Restart the projector Resetting the lamp timerIndicators Remote control does not work TroubleshootingProjector does not turn on No pictureProjector specifications SpecificationsMm W x 131.30 mm H x 304.99 mm D 274.87 48.57 Specifications DimensionsHorizontal Vertical Pixel Resolution Frequency Mode KHz MHz Timing chartSignal Format Horizontal Vertical Frequency Frequency kHz Supported timing for PC including DVI-D inputSupported timing for Video and S-Video inputs 15.73 Specifications15.73 15.63Limited warranty Warranty and Copyright informationCopyright DisclaimerFCC statement Regulation statementsEEC statement Weee directive