Panasonic PT-LB20VU, PT-LB20U manual Cleaning and replacing the air filter, Replacement procedure

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Cleaning and replacing the air filter

If the air filter becomes clogged with dust, the internal temperature of the projector will rise, the TEMP indicator will illuminate and the projector’s power will turn off (the TEMP indicator will flash after the power is turned off).

The air filter should be cleaned every 100 hours of use.

Cleaning

Use a vacuum cleaner to clean off any accumulated dust.

Air filter cover

NOTE:

BIf the dust cannot be cleaned by a vacuum cleaner, remove the air filter and soak it in water, and then wash out the dust by hand. Be sure to install the air filter after it has dried.

BDo not use detergent when washing the air filter.

BIf the dust cannot be removed by cleaning, it is time to replace the air filter. Please consult your dealer. Furthermore, if the lamp unit is being replaced, replace the air filter at this time also.

Replacement procedure

#Turn off the power and disconnect the power cord. Be sure to disconnect the power cord by following the procedure given on page 26.

$Gently turn the projector upside down, and then remove the air filter cover.

Air filter cover

%Replace the air filter, and then install the air filter cover.

Air filter

NOTE:

BBe sure to install the air filter before using the projector. If the projector is used without the air filter installed, dust and other foreign particles will be drawn into the projector, and malfunctions will result.

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Contents LCD Projector Commercial Use Model No. PT-LB20NTUDear Panasonic Customer Model number PT-LB20NTU / PT-LB20U / PT-LB20VU / PT-LB20SUFCC RF Exposure Warning if provided with wireless device PreparationDeclaration of Conformity PanasonicContents Precautions with regard to safety Do not overload the wall outletDo not remove the cover or modify it in any way Do not place the projector into water or let it become wet Do not handle the power cord plug with wet handsInsert the power cord plug securely into the wall outlet Do not place liquid containers on top of the projectorAlways disconnect all cables before moving the projector Do not look into the lens while the projector is being usedDo not cover the air inlet port or the air outlet port Do not place any heavy objects on top of the projectorInsulate the battery using tape or similar before disposal Do not put your weight on this projectorUse only the specified batteries Accessories Before use Be sure to attach the lens cover before moving the projectorScreen Order to get the best picture qualityDo not touch the surfaces of the lens with your bare hands LampLeg adjuster buttons L/R Lens cover Projection lens Remote control signal receptorLocation and function of each part # Connector panel $ Air outlet port $%$RGB2 IN/1 OUT connector pages 21, 22 # Power input socket ACRGB1 in connector pages 21 Video in connector pages 22$ Lamp indicator Remote control unit# RGB Input indicator MenuVolume +/- buttons Temp indicatorAuto Setup button pages 25 Illumination sensorSetting-up Projection methodsProjector position Projection distancesPT-LB20SU Connecting to computer ConnectionsConnecting to video equipment ET-ADSERPreparation for the remote control unit Insert the battery holderTurning on the power $Press the Power buttonTurn on the power of all connected devices Adjusting the size Press the input select button to select the input signalAdjusting the angle Adjusting the focusTurning off the power #Press the Power buttonDirect power off function Power button on the projectorProjector status Press the Auto Setup button Pausing a picture Freeze Turning off the picture and sound momentarily ShutterPress the Freeze button Press the Volume +/- button Adjusting the volume VolumeRemote control unit functions during D.ZOOM digital zoom Enlarging the picture D.ZOOMDisplaying two screens Index Window Press the Index Window buttonKeystone On-screen menusMenu screens Keystone correctionPosition menu Index Window function Shutter function Volume adjustmentAdjustments and settings Language menuMenu operation guide Contrast Bright Color Tint Sharpness Color Temp Returning a setting to the factory defaultSTD Select Enter RetrnVertical Correcting keystone distortionVertical keystone distortion correction only OperationAdjusting the picture Picture ModeColor ContrastBright TintMode Auto OFF DaylightviewDaylightview TV-SYSTEM Still ModeSignal Mode TV-SYSTEM Auto NtscPosition Adjusting the positionClock Phase DOT ClockAspect Aspect AutoResizing Frame LockChanging the display language OSD Option settingsAuto Signal Auto SearchRGB/YPBPR Sxga ModeRGB2 Select BlackboardFAN Control Lamp PowerDESK/CEILING Lamp RuntimePower Memory Control KEYAuto POW.OFF Setting up the security function Input PasswdAmend Passwd Text Display Text ChangeName Change DefaultNetwork WEB ControlLamp indicator Temp indicator RemedyLamp indicator Lamp PowerReplacement procedure Cleaning and replacing the air filterCleaning Air filter should be cleaned every 100 hours of useLamp unit replacement period Replacing the lamp unitLamp unit replacement procedure Select Control KEY Auto POW.OFF DisableFRONT/REAR Front DESK/CEILING Press and hold the Enter button for approximately 3 secondsBefore calling for service Cleaning and maintenance Specifications PT-LB20VURemote control unit OptionsAppendix List of compatible signalsPicture Resizing*3 Frequency Quality Mode Display ScanningProjection dimensions calculation methods PT-LB20VUCommunications settings Using the Serial connectorPin assignments and signal names ConnectionControl commands Cable specificationsCommand Control Remarks Contents

PT-LB20VU, PT-LB20U, PT-LB20SU specifications

The Panasonic PT-LB20SU, PT-LB20U, and PT-LB20VU are three exceptional projectors designed to deliver outstanding performance in various environments, including educational settings, business meetings, and home theater applications. These projectors are compact, lightweight, and packed with features, making them ideal for mobile presentations or fixed installations.

One of the standout features of the PT-LB20 series is its impressive brightness level, reaching up to 2000 lumens. This high brightness ensures clear and vivid images, even in well-lit rooms. The projectors support XGA resolution (1024 x 768 pixels), providing sharp visuals that enhance text readability and image detail.

The usability of the PT-LB20 projectors is complemented by Panasonic's advanced Daytime Mode, which optimizes image quality for brighter rooms. This feature is particularly beneficial for classrooms and conference rooms with significant ambient light, allowing for a comfortable viewing experience without straining the eyes.

In terms of connectivity, the PT-LB20 series comes equipped with multiple input options, including HDMI, VGA, and composite video ports, making it versatile enough to connect to various devices like laptops, Blu-ray players, and digital cameras. This variety alleviates compatibility issues and enhances user convenience.

The projectors are powered by a 230W UHM lamp that offers a long lamp life of approximately 5,000 hours in standard mode and up to 6,000 hours in eco mode, reducing maintenance costs and the frequency of replacements. The eco mode also helps reduce energy consumption, making these projectors more environmentally friendly.

The PT-LB20U stands out with its optional wireless module, facilitating easy connectivity without messy cables, which is ideal for dynamic presentations. Additionally, the PT-LB20SU and PT-LB20VU models feature built-in speakers that deliver decent audio quality, eliminating the need for external sound systems in smaller setups.

These models are designed with portability in mind, weighing only around 2.5 kilograms, making them easy to transport between locations. Their compact design also allows for easy setups, whether in classrooms, conference rooms, or even outdoor settings.

With their robust build quality and advanced features, the Panasonic PT-LB20SU, PT-LB20U, and PT-LB20VU projectors represent a reliable choice for users seeking performance, versatility, and ease of use. These projectors embody Panasonic's commitment to delivering innovative display solutions that cater to a wide variety of professional and educational needs.
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