Mitsubishi Electronics HC6800 user manual Replacing the lamp, Interval of lamp replacement

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Replacing the lamp

Replacing the lamp

This projector is equipped with a lamp to project images. This lamp is a consumable. It may burn out or its brightness may decrease during use. In such cases, replace the lamp with a new one as soon as possible. Be sure to replace the lamp with a new lamp sold separately that is exclusive to this projector. Contact your dealer for purchase of the lamp.

Spare lamp VLT-HC6800LP

Warning:

•Be careful not to drop the lamp fixing screws inside of the projector. Don’t put a metal piece or flammable object into the projector. Using the projector with any foreign object present inside may result in electric shock or fire. When you can’t remove the foreign object from the inside, contact your dealer for removal.

•Be sure to install the lamp securely. When the lamp isn’t installed properly, it won’t illuminate. Improper installation may also result in fire.

•Don’t shake the removed lamp or don’t lift it above your face. Your eyes may be injured by flying or falling glass fragments.

•Don’t replace the lamp immediately after use because the lamp cover will be very hot. You may get burned. Turn off the power using the POWER button. After the lamp goes out, wait about two minutes until the intake and exhaust fans for cooling the lamp stop rotating. Then turn off the main power switch, unplug the power cord, and wait at least 1 hour to allow the lamp to cool down enough to the touch.

•Do not touch the lamp directly. It may break and cause injury or burn.

Interval of lamp replacement

The recommended interval of lamp replacement is about 4000 hours*1*2 of consecutive use. Such interval differs depending on the operating environment and may be shorter than 4000 hours*1*2. Decrease in luminescence and/or color brightness indicates that the lamp needs to be replaced. When the lamp operation time exceeds 3000 hours*1, the indicator will blink alternately between green and red (while the lamp is lit; when the lamp is not lit, the indicator will be lit red only) and the lamp replacement message will appear on the screen for one minute everytime the lamp is turned on. When the lamp has been used for about 3800 hours*1, the replacement message (LAMP EXCHANGE) will appear on the screen for one minute every 20 hours*1 thereafter. When the lamp operation time exceeds 4000 hours*1*2, the projector automatically shuts off and can’t be used until the lamp is replaced and the lamp operation time is reset.

*1: Duration when LAMP MODE of the INSTALLATION menu is set to LOW. When it is set to STANDARD, this duration will be shorted.

*2: When LAMP MODE is set to STANDARD, this duration will be shorted to 2000 hours.

Caution:

•Don’t remove the lamp for any purpose other than replacement. Unnecessary removal of the lamp may result in a breakdown.

•This projector uses a high-pressure mercury lamp as the light source. The high-pressure mercury lamp may explode or fail to illuminate permanently because of an impact, scratch, or deterioration through use. The period of time until explosion or permanent failure to illuminate varies considerably from lamp to lamp, depending on operation conditions. Therefore, the lamp may explode soon after the start of use.

•The possibility of explosion of the lamp increases if you use it beyond its replacement period. When the instruction of lamp replacement appears, replace it with a new one immediately even if the lamp is still lighting normally.

•When the high-pressure mercury lamp explodes, glass fragments will scatter inside or outside the lamp box and the gas charged inside the lamp will diffuse inside or outside the projector. The gas inside the lamp contains mercury. Be careful not to breathe it or avoid it from entering your eye or mouth. If you should breathe it or if it should enter your eye or mouth, see a doctor immediately.

•In the event that the high-pressure mercury lamp exploded, glass fragments may have been scattered inside the projector. Ask your dealer to replace the lamp and to inspect the inside of the projector. When you clean or replace the lamp by yourself, be sure to hold the handle of the lamp. You may get injured by glass fragments.

•When removing the lamp from the ceiling-mounted projector, use the lamp replacement tray packed with the projector or option lamp to prevent glass fragments from scattering.

•Be sure to use the lamp exclusive to this projector, VLT-HC6800LP. Use of other lamps may cause a failure of the projector.

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Contents MODEL HC6800HC6800 LCD PROJECTORSHOCK, DO NOT REMOVE COVER OR BACK NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNELTHE PROJECTOR IS IN THE POWER ON MODE CAUTION TO REDUCE THE RISK OF ELECTRICContents Trademark, Registered trademarkImportant safeguards EN-4Important safeguards continued Do not keep using the damaged projectorDo not look into the lens when it is operating Do not unplug the power cord during operationChecking accessories Inserting the batteries into the remote controlPreparing your projector Indicator area Preparing your projector continuedOverview Attaching the lens capRemote control Using the picture quality adjusting buttonsBottom side Adjustment feetUsing the remote control Operational range of the remote controlReception angle Front of projectorSetting up your projector Setting up the screenWhen the aspect ratio of the screen is Screen size and projection distanceSetting up your projector continued When the aspect ratio of the screen is 2.351 CinemaScopeScreen size and projection distance continued When the aspect ratio of the image isAdjusting the position of the projected image When fine streaks are seen on projected imagesWhen projected images are distorted to a trapezoid Correcting skewed or distorted imageFront projection, ceiling mounting TRIGGER terminalRear projection A. Connecting the projector to video equipment Viewing video imagesBasic home theater system connection PreparationConnecting to a video player, etc Connecting to a DVD player or HDTV decoderViewing video images continued When a TV tuner or VCR is connectedConnecting to video equipment having a HDMI terminal EN-16Connection for video equipment having an HDMI terminal B. Plugging in the power cord EN-17C. Projecting images EN-18To stop projecting EN-19Setting the aspect ratio EN-20How to change the settings With the remote controlWith the FEATURE menu See page 26 for menu setting A. Connecting the projector to a computer B. Plugging the power cordViewing computer images About DDCViewing computer images continued When connecting to a notebook computer Setting of the resolutionAUTO POSITION button Example of the setting procedure for external outputMenu operation EN-25How to set the menus Available settings in the menusMenu operation continued 1. IMAGE menu2. INSTALLATION menu EN-273. FEATURE menu EN-284. SIGNAL menu EN-295. USER menu AV memory To store the settingsTo enable the stored image quality settings 6. INFORMATION menuAdjusting projected images To adjust the brightness CONTRAST and BRIGHTNESSTo adjust the color COLOR and TINT To sharpen or soften the projected image SHARPNESSAdjusting projected images continued To adjust the tone of white COLOR TEMPTo adjust the tone of white To customize the color temperature About color temperatureTo adjust the ratio of change in brightness GAMMA MODE Noise reductionTo enable the stored gamma mode TRNR temporal recursive noise reductionHow to adjust the image supplied from the computer using the menu LPF Progressive filterSimple method to adjust the image position To adjust the horizontal positionAdvanced features Password functionTo enable the password function To cancel the password functionInterval of lamp replacement Replacing the lampReplacing the lamp continued To replace the lampReset of the lamp operation time When removing the lamp from the ceiling-mounted projector EN-38Cleaning of the projector and the ventilation slots Cleaning of the lensEN-39 For the air-filter whiteTroubleshooting ProblemSolution EN-40Troubleshooting continued No image appears on the screen. continuedImages are not displayed correctly Images are not displayed correctly. continued OthersIndicators Normal conditionAbnormal condition Specifications Dimension drawings unit mmSpecifications continued Specification of RGB signals in each computer mode of the projectorEN-45 Connectors Replacement part option/not included in the boxEN-46 MITSUBISHI ELECTRIC CORPORATION 1 Zusho Baba, Nagaokakyo-City, Kyoto Japan
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