BenQ CP120 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 "Shutdown" on page 27 and unplug the power cord.

To remove dirt or dust, wipe the case with a soft, dry, 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 53 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.

Maintenance 45

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Contents Welcome Software license agreement CopyrightDisclaimer Copyright Memo Table of Contents Iv Table of Contents Fine-tuning the image size and clarityTable of Contents Dimensions Timing chartMemo Vi Table of Contents Important safety instructions Important safety instructionsBut could fail if power cuts or surges Safety instructions Following environments Do not place this unit on a blanket Do not block the ventilation holesBedding or any other soft surface Other itemSafety instructions Introduction Projector featuresIntroduction Shipping contents Front / Upper side Projector exterior viewRear side Lower sideTurns the projector on or off Introduction Controls and functionsExternal control panel Adjusts the focus of the projected image Down on the remote control Remote control descriptionPress this button to display the Wireless Connection menu Turns the projector on or offInstalling or replacing the remote control battery Remote control effective rangeChoosing a location Positioning your projectorObtaining a preferred projected image size EquipmentSelect your screen size Positioning your projector Screen Center of lens Projection distance Screen size chartMaximum Minimum Zoom Connection Connecting a computerConnection Best video quality Connecting Video source devicesComponent Video to VGA D-Sub adaptor cable Device Connecting a Component Video source deviceVideo cable Device Connecting an S-Video source deviceConnecting a composite Video source device Switch all of the connected equipment on Using the projectorUsing the projector Start upTo set a password Utilizing the password functionTo change the password If you forget the passwordTo enter the password recall procedure Auto-adjusting the image Adjusting the heightFine-tuning the image size and clarity That you need using the zoom ring Focus ringRight buttons on Correcting keystoneManual keystone correction Switching input signal Selecting an application modeHiding the image Automatic keystone correctionRemote paging operations Disconnect the power cord from the wall socketFreezing the image ShutdownHardware and software requirements Using the wireless functionsAbout wireless connection modes and channels Checking the TCP/IP settings of your computer Preparing your computer for wireless connectionInstalling Wireless Wizard Making wireless presentationClick to select a wireless network card from the list Current wireless connection channel Page Freezing image Controlling presentationMethod 2 Projector control DisconnectingMenu system Menu operationUsing the menus Picture menu Keystone Selected Application ModeColor Temp Depends onPro-Picture menu Setting menu Advance menu Auto Off Off Turned off. Selecting Off disables this functionEconomic Periods of time 10hours without shutdownMode Equivalent ResolutionInformation Menu SourceCare of the projector MaintenanceMessage Status Calculation of lamp hourReplacing the lamp Resetting the lamp counter Temperature informationProjector needs to cool after the power is Turned off IndicatorsStand-by mode Powering upMaintenance Projector does not turn on TroubleshootingNo picture Image is unstableUnable to use wireless connection Remote control does not workConfigured NearbyProjector specifications SpecificationsTiming chart DimensionsHorizontal Vertical Pixel Resolution Frequency Mode KHz MHz Supported timing for PC inputSupported timing for Video and S-Video inputs Signal Format Horizontal Frequency Vertical Frequency KHzSupported timing for Component-YPbPrInput Warranty WarrantyLimited warranty FCC statement Regulation statementsEEC statement MIC statementMemo Regulation statements