Replacing the lamp | BenQ MX620ST instruction

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 qualified 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.

•Ensure good ventilation when handling broken lamps. We recommend that you use respirators, safety glasses, goggles or face shield and wear protective clothing such as gloves.

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

2.Loosen the screw(s) that secures the lamp

cover on the side of the projector 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.

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Maintenance 51

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BenQ MX620ST user manual Replacing the lamp

Contents

MS619ST/MX620ST/MW621ST Table of contents Safety Instructions Important safety instructions Safety Instructions 3000 m Feet Ceiling mounting the projector Introduction Projector features Shipping contents Front/upper side Rear/lower side Projector exterior view Controls and functions Remote control Replacing the remote control batteries Remote control effective range Front Ceiling Positioning your projectorChoosing a location Front Table Length Projection dimensionsObtaining a preferred projected image size Screen size Distance from screen mm Diagonal MW621ST Connection Connection Best Connecting video source devicesConnecting audio Terminal name Terminal appearance Starting up the projector Operation Fine-tuning the image size and clarity Adjusting the projected imageAdjusting the projection angle Auto-adjusting the image Correcting keystone Below is the overview of the OSD menu Using the menus Highlight Change Security Settings and press MODE/ENTER Using a security cable lockUtilizing the password function Setting a password If you forget the password Entering the password recall procedureChanging the password Disabling the password function Switching input signal Changing Color Space Magnifying and searching for details Selecting the aspect ratio MS619ST/ MW621ST About the aspect ratio Go to the Picture Picture Mode menu Using Wall ColorSelecting a picture mode Setting the User 1/User 2 mode Fine-tuning the image quality in user modes Adjusting Brilliant ColorSelecting a Color Temperature 3D Color Management Setting a preferred color temperature Setting the presentation timer Resetting current or all picture modesSelection Description Top-Left Bottom-Left Top-Right Bottom-Right To cancel the timer, perform the following stepsRemote paging operations Freezing the image Operating in a high altitude environment To activate the High Altitude ModeHiding the image Locking control keys Turning off the Power On/Off Ring Tone Adjusting the soundUsing the test pattern Adjusting the sound level To select Blackboard or Whiteboard Using the teaching templates Presenting from a USB Reader Shutting down the projector Direct power off Menu operation Menu systemMain menu Sub-menu Options Basic Advanced Description of each menu Apply 3D Settings Teaching Template Description3D Sync Invert Mode Picture menu Function Description Picture ModeTemperature Reference Timer Fine Tuning 3D ColorReset Picture Settings Quick Auto Receiver System Setup Basic menu Function DescriptionOperation Remote Lamp System Setup Advanced menu Function Description HighAltitude Audio Current Reset AllStandby Network Care of the projector Maintenance Lamp information Getting to know the lamp hourExtending lamp life Status Message Timing of replacing the lamp Replacing the lamp Maintenance Resetting the lamp timer Thermal events IndicatorsLight Status & Description Power events Lamp events Troubleshooting Projector specifications Specifications Ceiling mount installation Dimensions Supported timing for PC input Timing chart KHz Supported timing for Hdmi Hdcp input Timing Supported timing for Component-YPbPrinput Supported timing for Video and S-Video inputs Disclaimer Warranty and Copyright informationLimited warranty Copyright