Mitsubishi Electronics HC6800 Troubleshooting, EN-40, No image appears on the screen, Problem

Page 40
Troubleshooting

Troubleshooting

Before asking for repair of the projector, check the following. If the symptom persists, stop using the projector, be sure to unplug the power plug, and then contact your dealer.

No image appears on the screen.

Problem

Solution

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power can not be

• Check whether the indicators are on or off and how they are lightning.

 

turned on.

POWER

STATUS Solution

 

 

 

 

 

 

 

 

 

•

Connect the power cord to the projector.

 

Off

 

Off

•

Plug the power cord into a wall outlet.

 

 

•

Turn on the main power switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•

If any objects are blocking the air inlet or outlet grill, re move them and carry out the

 

 

 

 

 

 

 

 

 

following.

 

 

 

 

Off

 

1.

Turn off the main power switch.

 

 

 

 

 

2.

Make sure that the projector has cooled off.

 

 

 

 

 

 

 

 

 

3.

Turn on the main power switch.

 

 

 

 

 

 

 

 

 

4.

Press the POWER button.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•

If any objects are blocking the air inlet or outlet grille, remove them.

 

 

 

 

 

 

 

 

•

Don’t expose the air outlet grilles to hot air emitted from a heating appliance.

 

 

 

Blinking

 

 

 

•

Check whether the filter is clogged with dirt or dust.

 

Steady red

orange

 

 

Clean the filter, if clogged. (See page 39.)

 

 

 

 

 

 

 

 

 

•After the STATUS indicator stops blinking, press the POWER button.

 

 

 

 

 

 

 

 

 

 

 

• If the main power switch is turned off while the fan is rotating, the lamp may not turn on about 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blinking

minute when the main power switch is turned on next time.

 

 

 

 

 

 

• The lamp can’t turn on again for one minute after it goes out.

 

 

 

 

 

 

green

 

 

 

 

 

 

 

 

 

 

•

Press the POWER button several times.

 

 

 

 

 

 

 

 

 

 

 

•

Replace the lamp. (The lamp is at the end of its life.)

 

 

 

 

 

 

Steady red

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•

Attach the lamp cover.

 

 

 

 

 

 

 

Off

 

 

 

 

 

 

 

 

 

 

 

 

•

Unplug the power cord from the wall outlet and contact your dealer .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blinking

Steady

 

 

 

red/green

 

 

or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blinking

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No image appears on

• Check that the lens cap is removed.

the screen.

• It may take about one minute for the lamp to light up.

•The lamp fails to light up on rare occasions. In such a case, wait for a few minutes and then try again.

•If the projector was turned off before the lamp was cooled down sufficiently last time, the fan may start rotating and the POWER button may not work after the main power switch is turned on. After the fan stops rotating, press the POWER button to turn back on the POWER indicator.

•Check that the intake vent is clean.

•Set SCART INPUT in the FEATURE menu to OFF. (See page 28.)

•Check that the lamp cover is closed. (See page 37.)

•Check that the cables connected to the external devices are not broken.

•When an extension cable is being used, replace it with the supplied cable for check. When images are displayed correctly, add an RGB signal amplifier to the extension cable.

•Check the operation manual of the video device for its connection.

Power turns off.

• This problem may occur when the intake vent and/or exhaust vents are blocked. (In

 

such a case, the STATUS indicator brinks orange.)

 

Remove the objects blocking the intake vent and/or exhaust vents and then carry

 

 

out the following procedure.

 

1.

Wait for the intake fan and/or exhaust fan to stop. (Wait until the STATUS indicator

 

 

goes out.)

 

2.

Turn off the main power switch.

 

3.

Wait at least 10 minutes.

 

4.

Turn on the main power switch.

 

5.

Press the POWER button.

 

• When the STATUS indicator is steady red, it is indicating that the lamp should be

 

replaced. Replace the lamp in this case.

 

• Check that AUTO POWER OFF has been set to OFF.

 

• If the lamp has deteriorated, it may go out after a while it illuminates.

EN-40

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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 operationInserting the batteries into the remote control Checking accessoriesPreparing 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 imageTRIGGER terminal Front projection, ceiling mountingRear 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 connectedEN-16 Connecting to video equipment having a HDMI terminalConnection 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-20With the remote control How to change the settingsWith 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-28EN-29 4. SIGNAL menu5. 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 lampTo replace the lamp Replacing the lamp continuedReset 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-40No image appears on the screen. continued Troubleshooting continuedImages are not displayed correctly Images are not displayed correctly. continued OthersNormal condition IndicatorsAbnormal condition Specifications Dimension drawings unit mmSpecification of RGB signals in each computer mode of the projector Specifications continuedEN-45 Replacement part option/not included in the box ConnectorsEN-46 MITSUBISHI ELECTRIC CORPORATION 1 Zusho Baba, Nagaokakyo-City, Kyoto Japan
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