BenQ MX850UST, MW851UST user manual Shutting down the projector, Direct power off

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Shutting down the projector

1.Press POWER on the projector or OFF on the remote control and a confirmation message will display prompting you.

If you don't respond in a few seconds, the message will disappear.

2.Press POWER a second time. The POWER indicator light flashes orange, the projection lamp shuts down, and the fans will continue to run for approximately 90 seconds to cool down the projector.

To protect the lamp, the projector will not respond to any commands during the cooling process.

To shorten the cooling time, you can also activate the Quick cooling function. See "Quick Cooling" on page 46 for details.

3. Once the cooling process finishes, a "Power Off Ring Tone" will be heard. The POWER indicator light is a steady orange and fans stop. Disconnect the power cord from the power outlet.

• To turn off the power ring tone, see "Turning off the Power On/Off Ring Tone" on page 35 for details.

•If the projector is not properly shut down, to protect the lamp, when you attempt to re-start the projector, the fans

will run for a few minutes to cool down. Press POWER again to start the projector after the fans stop and the POWER indicator light turns orange.

•Lamp life results will vary depending on environmental conditions and usage.

Direct power off

The AC power cord can be pulled out right after the projector is turned off. To protect the lamp, wait about 10 minutes before re-starting the projector. (When you attempt to re-start the projector, the fans may run for a few minutes to cool down. In such cases, press

POWER again to start the projector after the fans stop and the POWER indicator light turns orange.

Operation 39

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Contents Welcome Table of contents Important safety instructions Safety InstructionsRefer servicing to qualified service personnel Safety Instructions Confined. Allow at least 50 cm clearance Locations near fire alarmsLocations with an ambient temperature Locations where the altitudes are higherInverted images for ceiling mount InstallationProjector features IntroductionIntroduction Shipping contents Front/upper side Rear/lower side Projector exterior viewControls and functions Projector Keystone/Arrow buttons / Up Down Remote controlON/OFF TestNumeric buttons Operating the Laser pointerMute MIC/VOL +Replacing the remote control battery Remote control effective rangePositioning your projector Choosing a locationFront Ceiling Obtaining a preferred projected image size Projection dimensions1778 1508 942 Screen Size Distance from Screen in mmDiagonal Inches 1524 808Connection Best Connecting video source devicesConnecting audio Terminal name Terminal appearanceDevice Audio Settings Microphone Volume menuPlaying sound through the projector About the microphone inputOperation Starting up the projectorOperation Correcting keystone Adjusting the projected imageAuto-adjusting the image Fine-tuning the image clarityUsing the menus Following example describes how to set the OSD languageUse / to highlight the System Setup Basic menu Highlight Change Security Settings and press MODE/ENTER Using a security cable lockUtilizing the password function Setting a passwordIf you forget the password Entering the password recall procedureWrite down the number and turn off your projector Changing the password Disabling the password functionEnter a new password Changing Color Space Switching input signalSelecting the aspect ratio Magnifying and searching for detailsAspect alteration Projectors native resolution in its Displayed in the centerAbout the aspect ratio Screen with a 169 aspect ratioGo to the Picture Picture Mode menu Using Wall ColorSelecting a picture mode Setting the User 1/User 2 modeFine-tuning the image quality in user modes Range at 0, only pure red in the projected Press To highlight Saturation and adjust itsEvery adjustment made will reflect to 3D Color ManagementSelection Description Setting the presentation timerTo cancel the timer, perform the following steps Count Up Increases from 0 to the preset time Count DownLocking control keys Remote paging operationsFreezing the image Hiding the imageTo activate the High Altitude Mode Operating in a high altitude environmentCreating your own startup screen Adjusting the sound Controlling the projector through a LAN environmentCable connection If you are in a non-DHCP environment Controlling the projector remotely through a web browserIiii Iiiv Press Exit to go back to the remote network operation Shutting down the projector Direct power offMenu operation Menu systemMain menu Sub-menu Options Hr/8 hr/12 hr System Setup BasicSleep Timer Min/25 min/30 minAdvanced Description of each menu Display menu Picture menu Function Description Teaching Picture ModeTemperature Save SettingsColor Space TimerSettings SearchLock Function DescriptionOperation Panel KeyLamp System Setup Advanced menu Function Description HighAltitude AudioNetwork System Setup Advanced menu Function DescriptionReset All StandbyStatus Information menu Function DescriptionCurrent SystemCare of the projector MaintenanceGetting to know the lamp hour Setting Lamp Mode as EconomicSetting Auto Power Off Lamp informationStatus Message Timing of replacing the lampReplacing the lamp Use the handle to slowly pull the lamp out of the projector Connect the power and restart the projector Resetting the lamp timerTime will be reset to Indicators Light Status & Description Power eventsLamp events Troubleshooting Projector specifications SpecificationsMm W x 236.9 mm H x 322.8 mm D 339 Specifications DimensionsMinimum installation requirements Wall mount installation975 1173 1189 1181 960 Minimum Ceiling Height mm = f + H + b + 60 + 221+ c CeilingWall plate Supported timing for PC input Timing chartSupported timing for Hdmi Hdcp input Supported timing for Component-YPbPrinput TimingHorizontal Supported timing for Video and S-Video inputs Disclaimer Warranty and Copyright informationLimited warranty Copyright