BenQ MX819ST, MX820ST Tighten the screws that secures the lamp Cover, Resetting the lamp timer

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13.Tighten the screw(s) that secures the lamp

cover.

• Loose screw may cause a bad connection, which could result in malfunction.

• Do not over tighten the screw.

14. Connect the power and restart the projector.

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

Resetting the lamp timer

15.After the startup logo, open the On-Screen Display (OSD) menu. Go to the SYSTEM SETUP: Advanced > Lamp Settings menu. Press MODE/ENTER. The Lamp Settings page displays. Highlight Reset Lamp Timer. A warning message is displayed asking if you want to reset the lamp timer. Highlight Reset and press MODE/ENTER. The lamp time will be reset to “0”.

Do not reset if the lamp is not new or replaced as this could cause damage.

52 Maintenance

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Contents MX818ST/MX819ST/MW820ST Table of contents Important safety instructions Safety InstructionsSafety Instructions 3000 m Feet Ceiling mounting the projector Projector features IntroductionShipping contents Projector exterior view Front/upper side Rear/lower sideControls and functions ProjectorRemote control ON/ OFF+/PAGE Network No function AutoRemote control effective range Operating the Laser pointerReplacing the remote control batteries Positioning your projector Choosing a locationFront Table Front CeilingProjection dimensions Obtaining a preferred projected image sizeMW820ST Connection ConnectionConnecting video source devices Connecting audioTerminal name Terminal appearance BestOperation Starting up the projectorAdjusting the projected image Adjusting the projection angleAuto-adjusting the image Fine-tuning the image clarityCorrecting keystone Using the menus Below is the overview of the OSD menuUsing a security cable lock Utilizing the password functionSetting a password Highlight Change Security Settings and press MODE/ENTEREntering the password recall procedure If you forget the passwordChanging the password Disabling the password function Switching input signalChanging Color Space Magnifying and searching for details Selecting the aspect ratioAbout the aspect ratio Using Wall Color Selecting a picture modeSetting the User 1/User 2 mode Go to the Picture Picture Mode menuFine-tuning the image quality in user modes Setting a preferred color temperature 3D Color ManagementResetting current or all picture modes Setting the presentation timerSelection Description To cancel the timer, perform the following steps Remote paging operationsFreezing the image Top-Left Bottom-Left Top-Right Bottom-RightTo activate the High Altitude Mode Hiding the imageLocking control keys Operating in a high altitude environmentAdjusting the sound Using the test patternAdjusting the sound level Turning off the Power On/Off Ring ToneUsing the teaching templates Direct power off Shutting down the projectorMenu operation Menu systemMain menu Sub-menu Options Wall ColorBasic Advanced Description of each menu Picture Mode TemperatureColor Temperature Fine Tuning 3D ColorTimer InstallationSearch Color SpaceSystem Setup Basic menu Function DescriptionOperation RemoteSystem Setup Advanced menu Function Description High AltitudeAudio LampSystem Setup Advanced menu Function Description Reset AllStandby NetworkInformation menu Function Description CurrentSystem StatusMaintenance Care of the projectorGetting to know the lamp hour Lamp informationExtending lamp life Timing of replacing the lamp Status MessageReplacing the lamp Replace the lamp cover on the projector Resetting the lamp timer Tighten the screws that secures the lamp CoverIndicators Light Status & Description Power eventsLamp events Thermal eventsTroubleshooting Specifications Projector specificationsDimensions Ceiling mount installationWall mount installation Minimum installation requirements1171 1181 Minimum Ceiling Height mm = f + H + b + 60 + 274+ c ScreenSupported timing for PC input Timing chartKHz Resolution Mode Frequency KHz MHz Supported timing for Hdmi Hdcp inputSupported timing for Component-YPbPrinput TimingSupported timing for Video and S-Video inputs NtscWarranty and Copyright information Limited warrantyCopyright Disclaimer

MX819ST, MX820ST, MX818ST specifications

BenQ has been a prominent player in the projector market, catering to various consumer needs with innovative and high-quality solutions. Among their notable offerings are the BenQ MX818ST, MX820ST, and MX819ST projectors, specifically designed for educational institutions and small to medium-sized business environments. These models are a part of BenQ's commitment to enhancing visual learning and presentations.

The BenQ MX818ST is a short-throw projector, capable of delivering large images from a close distance. This feature proves especially beneficial in classrooms where space may be limited. With a brightness level of up to 3,100 ANSI lumens and a resolution of XGA (1024x768), it provides crisp and clear visuals, making it suitable for various lighting conditions. One of its core technologies is the DLP (Digital Light Processing) technology, which ensures vibrant colors and sharp pictures, elevating the viewing experience during lessons or presentations.

Following closely, the MX820ST builds on the strengths of the MX818ST while adding enhanced features like a higher brightness level of 3300 ANSI lumens. The MX820ST also includes BenQ’s BrightView and high contrast ratio to improve visibility and clarity, ensuring that every detail stands out regardless of ambient light. Equipped with a 1.02-1.23:1 throw ratio, it allows users to project a large screen from mere feet away. Additionally, the projector boasts multiple connectivity options, including HDMI and VGA, facilitating compatibility with various devices.

The MX819ST is another standout in this lineup, offering similar specifications to its siblings but with added features that enhance usability. This model includes improved color performance thanks to BenQ's color calibration technology, ensuring consistency in image presentation. Moreover, it offers a 10,000-hour lamp life, which reduces maintenance costs and improves efficiency by minimizing the frequency of lamp replacements. Its portability and flexible installation options make it a viable choice for both stationary and mobile presentations.

All three models are designed with user-friendly interfaces, ensuring seamless operation whether in a classroom or a boardroom. They also come equipped with advanced network management features, allowing institutions and companies to manage projector settings remotely. With eco-friendly technologies, such as energy-saving modes, these projectors help minimize environmental impact.

In summary, the BenQ MX818ST, MX820ST, and MX819ST projectors stand out in the market due to their combination of advanced technologies, user-friendly features, and robust performance. They cater to the needs of educational and business environments, providing high-quality presentations that make a lasting impact.