Mitsubishi Electronics HC6800 Cleaning of the projector and the ventilation slots, EN-39

Page 39
• For the air-filter (white)
Right side panel
Fixing screws

Maintenance

Warning:

Never use flammable air duster or other materials when cleaning the air-filter. Flammable substances may ignite causing fire or breakdown when the lamp is illuminated.

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.

Cleaning of the air-filter

Clean the air-filter frequently (about once a month). If the air-filter or ventilation grilles become clogged with dirt or dust, the temperature inside the projector may rise and cause troubles, such as damage to the inside parts and shortening the life of the panels.

• When the temperature inside the projector rises, the STATUS indicator will blink orange and the lamp will be turned off.

1. Loosen two screws that are fixing the right side panel using a Phillips screwdriver (+) and remove the panel from the projector.

2.Remove the filter from the right side panel.

(1)Remove the holder by pushing the tab of the holder on the air- filter in the direction of the arrow.

(2)Remove the air-filter (white), spacer, and air-filter (gray).

3. Clean dirt and dust adhering to the air-filter using a

vacuum.

 

For the air-filter (white)

 

 

If stubborn stains persist, wash the air-filter with

water

Holder

and dry well in the shade.

 

 

For the air-filter (gray)

If stubborn stains persist, wash the air-filter with diluted detergent, rinse with water, and dry well.

•For the air-filter (gray) Back of the right side panel

4.Attach the filter to the right side panel.

(1)Attach the air-filter (gray), spacer, and air-filter (white) to the side panel, aligning their notches with that of the side panel.

(2)Insert the right tab of the holder to the side panel and push the left tab in the direction of the arrow to attach the side panel.

Air-filter (gray)

Spacer

Air-filter (white)

5. Attach the right side panel to the projector and fix it with two screws.

Important:

If the air-filter is damaged or becomes extremely dirty, change it with a new air-filter. Contact your dealer for a new air-filter.

Use the dedicated air-filter only.

Holder

Fixing screws

Caution:

Be sure to use the projector with an air-filter. If not, dust may get inside the projector causing fire and failure.

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-39

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Contents LCD PROJECTOR MODELHC6800 HC6800CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK NO USER-SERVICEABLE PARTS INSIDEREFER SERVICING TO QUALIFIED SERVICE PERSONNEL THE PROJECTOR IS IN THE POWER ON MODETrademark, Registered trademark ContentsEN-4 Important safeguardsDo not unplug the power cord during operation Important safeguards continuedDo not keep using the damaged projector Do not look into the lens when it is operatingChecking accessories Inserting the batteries into the remote controlPreparing your projector Attaching the lens cap Indicator areaPreparing your projector continued OverviewAdjustment feet Remote controlUsing the picture quality adjusting buttons Bottom sideFront of projector Using the remote controlOperational range of the remote control Reception angleScreen size and projection distance Setting up your projectorSetting up the screen When the aspect ratio of the screen isWhen the aspect ratio of the image is Setting up your projector continuedWhen the aspect ratio of the screen is 2.351 CinemaScope Screen size and projection distance continuedCorrecting 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 A. Connecting the projector to video equipmentViewing video images Basic home theater system connectionWhen a TV tuner or VCR is connected Connecting to a video player, etcConnecting to a DVD player or HDTV decoder Viewing video images continuedConnecting to video equipment having a HDMI terminal EN-16Connection for video equipment having an HDMI terminal EN-17 B. Plugging in the power cordEN-18 C. Projecting imagesEN-19 To stop projectingEN-20 Setting the aspect ratioHow to change the settings With the remote controlWith the FEATURE menu See page 26 for menu setting About DDC A. Connecting the projector to a computerB. Plugging the power cord Viewing computer imagesViewing computer images continued Example of the setting procedure for external output When connecting to a notebook computerSetting of the resolution AUTO POSITION buttonEN-25 Menu operation1. IMAGE menu How to set the menusAvailable settings in the menus Menu operation continuedEN-27 2. INSTALLATION menuEN-28 3. FEATURE menu4. SIGNAL menu EN-295. USER menu 6. INFORMATION menu AV memoryTo store the settings To enable the stored image quality settingsTo sharpen or soften the projected image SHARPNESS Adjusting projected imagesTo adjust the brightness CONTRAST and BRIGHTNESS To adjust the color COLOR and TINTAbout color temperature Adjusting projected images continuedTo adjust the tone of white COLOR TEMP To adjust the tone of white To customize the color temperatureTRNR temporal recursive noise reduction To adjust the ratio of change in brightness GAMMA MODENoise reduction To enable the stored gamma modeTo adjust the horizontal position How to adjust the image supplied from the computer using the menuLPF Progressive filter Simple method to adjust the image positionTo cancel the password function Advanced featuresPassword function To enable the password functionReplacing the lamp Interval of lamp replacementReplacing the lamp continued To replace the lampReset of the lamp operation time EN-38 When removing the lamp from the ceiling-mounted projectorFor the air-filter white Cleaning of the projector and the ventilation slotsCleaning of the lens EN-39EN-40 TroubleshootingProblem SolutionTroubleshooting continued No image appears on the screen. continuedImages are not displayed correctly Others Images are not displayed correctly. continuedIndicators Normal conditionAbnormal condition Dimension drawings unit mm SpecificationsSpecifications continued Specification of RGB signals in each computer mode of the projectorEN-45 Connectors Replacement part option/not included in the boxEN-46 1 Zusho Baba, Nagaokakyo-City, Kyoto Japan MITSUBISHI ELECTRIC CORPORATION