BenQ MP723 user manual Replacing the lamp, Loosen the screw that secures the lamp Maintenance

Page 56

Replacing the lamp

To reduce the risk of electrical shock, always turn the projector off and disconnect the power cord before changing the lamp.

To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes before replacing the lamp.

To reduce the risk of injuries to fingers and damage to internal components, use caution when removing lamp glass that has shattered into sharp pieces.

To reduce the risk of injuries to fingers and/or compromising image quality by touching the lens, do not touch the empty lamp compartment when the lamp is removed.

This lamp contains mercury. Consult your local hazardous waste regulations to dispose of this lamp in a proper manner.

To assure optimal performance from the projector, it is recommended that you purchase a BenQ projector lamp for lamp replacement.

If lamp replacement is performed while the projector is suspended upside-down from the ceiling, make sure that no one is underneath the lamp socket to avoid any possible injury or damage to the human eyes caused by fractured lamp.

1.Turn the power off and disconnect the projector from the wall socket. If the lamp is hot, avoid burns by waiting for approximately 45 minutes until the lamp has cooled.

2.Use a coin to turn the screw counterclockwise

until the lamp cover loosens.

3.Remove the lamp cover from the projector.

• Do not turn the power on with the lamp cover removed.

• Do not insert your fingers between the lamp and the projector. The sharp edges inside the projector may cause injuries.

4. Loosen the screw that secures the lamp.

56 Maintenance

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Contents Welcome Table of contents Important safety instructions Refer servicing to qualified service personnelFuture 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 Controls and functions ProjectorRemote control CaptureIndicator light 22. D. Zoom + Operating the Laser pointerApprox.15 Remote control effective rangeReplacing the remote control batteries Set Rear Ceiling in the System Setup Basic Positioning your projectorChoosing a location Front TableObtaining a preferred projected image size Page Maximum zoom Minimum zoom Screen Center of lens Projection distance1219 1500Connection Connecting a computer or monitorConnecting a computer Iii Connecting a monitor With a VGA cable With a VGA to DVI-A cableConnecting Video source devices Connecting AudioBest video quality Better video qualityConnecting a DVI source device Connecting a Component Video source device To connect the projector to a Component Video source deviceDevice Connecting an S-Video source deviceTo connect the projector to an S-Video source device Connecting a composite Video source device To connect the projector to a composite Video source deviceProjection lamp Press I I Power on the projector or remote OperationStarting up the projector OperationUsing the menus Use / to highlight the System Setup Basic menuUsing a security cable lock Utilizing the password functionSecuring the projector Removing the control keypad on the projectorSetting a password If you forget the passwordTo the Security Settings Respectively represent 4 digitsEntering the password recall procedure Changing the passwordDisabling the password function Enter a new passwordSwitching input signal Changing Color SpaceAdjusting the projected image Adjusting the projection angleAuto-adjusting the image Fine-tuning the image size and clarityOn the projector or remote Control Correcting keystoneSelecting the aspect ratio About the aspect ratioUsing Wall Color Selecting a picture modePC/DVI-A/DVI-D Signal Input Optimizing the imageFine-tuning the image quality in user modes Setting the User 1/User 2 modeAdjusting Brightness Adjusting ContrastAdjusting Color Adjusting TintAdjusting Sharpness Adjusting Brilliant ColorEvery adjustment made will reflect to 3D Color ManagementSetting the presentation timer You want the timer to show up on the screen byTo cancel the timer, perform the following steps How to use the Timer ON/SHOW button?Remote paging operations Button is a multi-functional keyHiding the image Freezing the imageLocking control keys Utilizing FAQ functionGo to the System Setup Basic Panel Key Lock Setup Advanced High Altitude Mode, select On Operating in a high altitude environmentCreating your own startup screen To activate the High Altitude Mode, go to the SystemAdjusting the sound Adjusting the sound levelTurning off the Power on/off ring tone Personalizing the projector menu displayShutting down the projector Approximately 90 seconds to cool down the projectorMenu operation Menu systemBasic AdvancedDisplay menu Source menuPicture menu System Setup Basic menu System Setup Advanced menu Information menu Maintenance Care of the projectorSetting Lamp Mode as Economic Setting Auto Power OffLamp information Getting to know the lamp hourTiming of replacing the lamp Loosen the screw that secures the lamp Maintenance Replacing the lampTighten the screw that secures the lamp Resetting the lamp timer Restart the projectorIndicators Troubleshooting Remote control does not workProjector does not turn on No pictureSpecifications Projector specificationsDimensions Mm W x 131.30 mm H x 304.99 mm D 274.87 48.57 SpecificationsTiming chart Horizontal Vertical Pixel Resolution Frequency Mode KHz MHzSignal Format Horizontal Vertical Frequency Frequency kHz Supported timing for PC including DVI-D input15.73 Specifications Supported timing for Video and S-Video inputs15.73 15.63Warranty and Copyright information Limited warrantyCopyright DisclaimerRegulation statements FCC statementEEC statement Weee directive