Mitsubishi Electronics HC7800DW Maintenance, Cleaning of the projector and the ventilation slots

Page 51

Maintenance

Warning:

Do not use flammable solvents (benzene, thinner, etc.) and flammable aerosols when cleaning the projector body and lens. Flammable substances may ignite causing fire or breakdown while the lamp is illuminating.

Caution:

Be sure to turn off the lamp and unplug the power cord from the wall outlet before you perform any maintenance on the projector.

Ask your dealer for annual cleaning of the inside of the projector. If you continue to use the projector with dust inside, it may result in fire or malfunction.

Cleaning of the projector and the ventilation slots

Use a soft cloth to clean the projector and the ventilation grilles. When the grilles become dirty, wipe them with a soft cloth dampened with diluted mild detergent, and then wipe them with a dry cloth.

To protect the surface of the projector from fading or deteriorating:

Do not spray insecticide on or inside the projector.

Do not use benzine or thinner to clean it.

Do not let rubber or plastic materials contact with projector.

Cleaning of the lens

Use a standard lens-cleaning brush or a piece of lens tissue dampened with lens cleaning fluid. The lens surface is fragile. Use only recommended, nonabrasive lens-cleaning materials. Do not touch the lens with your fingers.

EN-51

Image 51
Contents HC7800D Risk of Electric Shock Do not Open Contents Important safeguards Important safeguards What’s included in the box Inserting the batteries into the remote controlRemoving the batteries from the remote control Preparing your projectorPreparing your projector OverviewControl panel Remote control Picture quality adjusting buttonsPicture quality selection buttons Using the remote control Operational range of the remote controlReception angle Screen size and projection distance Setting up your projectorSetting up the screen When the aspect ratio of the screen isSetting up your projector When the aspect ratio of the screen is 2.351 CinemaScopeWhen the aspect ratio of the image is Correcting skewed or distorted image Adjusting the position of the projected imageWhen fine streaks are seen on projected images When projected images are distorted to a trapezoidFront projection, ceiling mounting Trigger terminalRear projection Preparation Connecting the projector to video equipmentViewing video images Basic home theater system connectionViewing video images Connecting to a DVD player or Hdtv decoderConnection for video equipment having an Hdmi terminal Connecting to video equipment having a Hdmi terminalPlugging in the power cord Projecting images To stop projecting ZOOM1 ZOOM2 Stretch ANAMORPHIC1 ANAMORPHIC2 Setting the aspect ratioWith the remote control How to change the settingsAbout DDC Connecting the projector to a computerPlugging the power cord Viewing computer imagesComputer Viewing computer imagesAuto Position button When connecting to a notebook computerSetting of the resolution Example of the setting procedure for external outputViewing 3D images Installing the 3D emitterTo view 3D images To change the 3D viewing modeViewing 3D images 3D images viewingEN-27 Menu operation You can make various settings using the displayed menusMenu selection bar is displayed How to set the menusMenu operation Press the Menu buttonImage menu Menu itemsVertical Location Setting Function Advanced MenuSetup Auto Screen SizeInstallation menu Feature menu Signal menu Network menu Adjusting projected images Information menuAV memory To sharpen or soften the projected image Sharpness Adjusting projected imagesTo adjust the brightness Contrast and Brightness To adjust the color Color and TintTo optically brighten or darken projected images Auto Iris To adjust the tone of white Color TempAbout color temperature To enable the stored color temperatureBLUEMAGENTARED To adjust the ratio of change in brightness Gamma ModeTo enable the stored gamma mode To use Color ManagementLPF Progressive filter To adjust the vertical positionTo cancel the password function Advanced featuresPassword function To enable the password functionMajor functions Advanced featuresConnection PJLink supported commandsInitial network settings Setting projector nameNetwork password settings IP address settings Initial network settingsIP settings Setting or clearing DhcpEnabling or disabling the PJLink certification Initialization of network settingsSubnet mask settings Default gateway settingsHow to use network function GlossaryDhcp Replacing the lamp Interval of lamp replacementReplacing the lamp When the projector is mounted to the ceilingReset of the lamp operation time Maintenance Cleaning of the projector and the ventilation slotsCleaning of the lens No image appears on the screen Problem TroubleshootingTroubleshooting No image appears on the screen Problem SolutionImages are not displayed correctly Problem Solution Others Problem Solution EN-55 EN-56 Normal condition IndicatorsPower Status Condition Condition Possible SolutionDimension drawings unit mm Specifications3D supported signals SpecificationsVLT-HC7800LP ConnectorsReplacement part option/not included in the box COMPUTER/COMPONENT Video Hdmi 1, HdmiZusho Baba, Nagaokakyo-City, Kyoto Japan