PLUS Vision U4-237 user manual Cleaning a Soiled Projector Main Unit, Dirty Lens

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Cleaning

•Be certain to disconnect the power plug from the power outlet before cleaning.

•Do not spray or otherwise expose the projector, lens, or screen to volatile substances such as insecticides. Do not leave rubber or vinyl products in contact with the projector for long periods. Doing so could cause them to undergo qualitative changes or the coatings may peel, etc.

Cleaning a Soiled Projector Main Unit

•Wipe with a lint-free, soft, dry cloth.

When very dirty, wipe with a cloth that has been moistened with a diluted neutral detergent, then finish with a dry cloth. If a chemically-treated cloth is going to be used, please follow any written warnings.

•Do not wipe with thinner, benzene, or other solvents. Doing so could cause them to undergo qualitative changes or the coatings may peel, etc.

•When removing the dust of the outflow and intake holes, use the brush attachment on a vacuum cleaner to clean out the dust. Avoid using the vacuum directly without attaching the adapter as well as the use of a nozzle adapter.

•Do not scratch or otherwise hit the projector body with your nails or other hard object, since this will cause scratches.

Dirty Lens

•Clean using the same method you would use to clean a camera lens: Use a commercial blower for camera use or cleaning paper for eye glasses. Be careful not to scratch the lens at this time.

Dust of the Intake and Outflow Holes

Dust that collects in the intake and outflow holes will obstruct the ventilation and cause the internal temperature to rise which could cause damage. Clean this area carefully. As a guideline, clean at least every 100 hours of usage.

•Switch off the power, check that the STANDBY indicator has changed to a steadily lit amber, then unplug the power cable.

•Clean out the holes from the outside using a vacuum cleaner. Use the brush adapter of the vacuum cleaner to do this. Avoid using the vacuum directly without attaching the adapter as well as the use of a nozzle adapter.

DVI

 

STATUS

 

SOURCE

 

STANDBY

MENU

AUTO

 

 

 

MENUQUICK

 

 

 

PC

CARD

 

 

AU

DIO

 

VIDE

O

S-VIDEO

PC-CARD

Cleaning the Inside of the Projector

Cleaning of the inside of the projector is required about once a year. Failure to clean over a long period while dust has collected inside the projector could cause a fire or breakdown. Do not clean the inside of the projector by yourself. Please be sure to contact your dealer.

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Contents U4-237 DOC Compliance Notice PrecautionsPower Supply InstallationCleaning Lamp ReplacementMajor Features Table of Contents Table of Contents Adjustments and SettingsMenu Operations MiscellaneousRemote control includes one button battery Checking the Supplied AccessoriesPower cable 1.8 m / 5.9 feet Audio cable Mini plug, 2 m / 6.6 feetChecking the Supplied Accessories Carrying case for projector and accessoriesPocket Velcro strap Cable storage pouch Names of the Main Unit Parts Built-in Security Slot PC connector E-15, 16 Audio connector E-20Names of the Main Unit Parts PC card slotNames of the Remote Control Parts Button Battery Replacement Preparing the Remote ControlRemote Control Range Using the remote control for the first timeProcedure Up to Projecting to the Screen Screen Size and Projection Distance Placement GuidePersonal Computers with a DVI Connector Connections with Personal ComputerDVI-D cable Available as an option. Order code Connecting Personal Computers and Video Equipment Personal Computers with a Mini D-Sub 15-Pin ConnectorPersonal computer DVI/mini D-Sub 15-pin conversion cable Supplied itemManufacturer Model Key To Output the External Output Signal of a Notebook ComputerVideo Equipment with Video Connectors Connections with Composite SignalsVideo Equipment with S-VIDEO Connectors Video cable Suppled item Video cable Supplied itemGreen Blue Red Cb Cr Connections with Component SignalsPb Pr Green Blue RedAudio cable Supplied item Connections with Audio ConnectorsAudio conversion cable Supplied itemSwitch on the projector power Remote control operation Press the Standby buttonOperating Press the Enter button to set Power Cable Connections and Switching the Power On/OffThis completes the selection of the display language CursorFinishing Unplug the power cableAdjustment of the Projection Screen Adjustment of the Projection ScreenAdjust the projection image to the screen Zoom ringRaising the projection image Making Adjustments with the AdjustersLowering the projection image Focus ringWhen Auto Source is On Automatic Adjustment of Analog RGBWhen Auto Source is Off General OperationVideo Signals / Component Signals Selection of Aspect RatioGeneral Operation Cancelling Video and Audio Temporarily Lamp ModeFreezing a Moving Picture Keystone Adjustment of the VolumeEnlargement of the Image and Video Movement Image can also be moved in the following circumstancesPress the Zoom button to enlarge the image Press the Enter button and start the timer Using the Presentation TimerTimer Display Moving the Position of the Timer DisplayProtecting the Projector with the Security Lock Canceling the password/Changing the password Input the password using the number buttons 1 toCanceling the password Changing the passwordContent of Adjustments and Settings Using the Quick MenuNames and Functions of Buttons Used for Menu Operations Menu Operation MethodAdjustment Bar Adjustment Bar and Settings ContentsMenu Screen Names and Functions Menu Operation MethodMenu Display Press the Menu button to display the menu Performing Menu OperationsMaking Adjustments/Settings This condition al- lows selection of the item nameSub menu Selecting Another Menu Name with Remote Control Operation RGB Terminal Menu name Item Name Sub Menu SetupImage Picture Adj. Picture AdjustmentBrightness / Contrast / Color / Tint / Sharpness Picture Adj. / Fine Picture / H Position / V PositionPress of the Enter button forces the reset ResetFine Picture PositionColor Select the preset color modeQuick Color Adj GammaColor Temp Selection contents at the time of YPbPr inputWhite Color SpaceWhite Balance View Video SignalsAspect FilterVertical Flip / Horizontal Flip Power cable has been unpluggedKeystone Save ViewAuto Power Off SetupAuto Source Menu PositionSetup Presentation TimerTo start the timer Input FormatLanguage OptionOn Screen BackgroundStartup Screen Network PasswordSecurity Lock OptionLamp Timer Reset Factory DefaultInfo StatusResolution / Frequency Lamp TimerInfo Thermal Protector When an Indicator is Lit or BlinkingCheck the following matters before requesting servicing TroubleshootingCleaning a Soiled Projector Main Unit CleaningCleaning the Inside of the Projector Dirty LensReplacing the Lamp Cartridge Remove the lamp cartridge Replacing the Lamp CartridgeReset the Lamp Timer Mount the new lamp cartridgeMount the lamp cover Optical SpecificationsElectrical MechanicalResolution Frequency Video SignalTable of Supported Frequencies Digital Analog242 190 Unit mm inch Cabinet Dimensions2004

U4-237 specifications

The PLUS Vision U4-237 is a state-of-the-art presentation tool designed for modern meeting environments. Its sleek design and advanced features make it a versatile solution for both professional and educational settings.

One of the standout characteristics of the U4-237 is its impressive resolution. With a Full HD display, the content is presented with incredible clarity and detail, ensuring that every presentation, video, and image is sharp and easy to see. This high resolution is particularly beneficial for detailed diagrams, graphs, and text-heavy slides, where clarity is essential for audience comprehension.

The U4-237 is equipped with advanced projection technology, including 3LCD technology, which enhances color accuracy and brightness. This feature ensures that vibrant colors are presented faithfully, making it ideal for a variety of content types, from colorful charts to intricate presentations.

Ease of connectivity is another key feature of the PLUS Vision U4-237. It offers multiple input options, including HDMI, VGA, and USB, allowing users to easily connect laptops, tablets, and other devices. Wireless connectivity options are also available, supporting seamless presentations without the hassle of tangled cables.

The U4-237 boasts a user-friendly interface, which simplifies navigation through menus and settings. This intuitive design allows users to quickly adjust settings like brightness and contrast, ensuring optimal performance in varying lighting conditions. The built-in speaker enhances sound delivery, negating the need for additional audio equipment during presentations.

Additionally, the PLUS Vision U4-237 is designed with energy efficiency in mind. It incorporates a long lamp life, reducing maintenance costs and downtime. This reliability makes it a perfect choice for regular use in classrooms or boardrooms.

Another notable feature is the comprehensive range of projection modes available, including eco mode, which conserves energy while still delivering quality images. The device also includes a remote control for convenient operation from a distance, making it easy to manage presentations smoothly.

In conclusion, the PLUS Vision U4-237 stands out for its high-definition display, advanced 3LCD technology, versatile connectivity options, user-friendly interface, and energy-efficient design. It is an excellent investment for anyone looking to elevate their presentation experience, whether in a professional or educational environment.
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