Mitsubishi Electronics HC4900 user manual Others Problem Solution

Page 40

Troubleshooting (continued)

Images are not displayed correctly. (continued)

Problem

Solution

 

 

Different color tint.

• When comparing images projected by two projectors, tints in the displayed images

 

may be different because of variation between their optical components. This is not a

 

malfunction.

 

• When comparing the image projected by this projector with those displayed on the

 

television or PC monitor, tints in the displayed images may be different because of

 

difference in the range of color reproducibility. This is not a malfunction.

 

 

Only the motion areas

• This is caused by the computer being used. Contact the manufacturer of your

in the images supplied

computer.

from the computer

 

aren’t displayed.

 

 

 

Projected images are

• Match the output resolution of your computer with the resolution of the projector.

obscured.

For the method to change the output resolution of the computer, contact the

 

manufacturer of your computer. (See page 43.)

 

 

Image remains

• When image from VCR is projected, it may remain freezing during speed search. This

freezing.

is not a malfunction.

 

 

Others

 

 

 

Problem

Solution

 

 

The exhaust vents

• This air comes out after cooling the inside of the projector. You may feel hot, but this

emit warm air.

is not a malfunction.

 

 

The menu can’t be

• The microcomputers inside the projector may be wrongly operating because of noise.

used.

J Press the POWER button to turn off the lamp and wait about 2 minutes. Then

 

unplug the power cord from the outlet, wait at least 10 minutes, and plug the

 

power cord back into the outlet. When the POWER button doesn't function, unplug

 

the power cord from the outlet, wait at least 10 minutes, and then plug the power

 

cord back into the outlet.

 

 

“TEMPERATURE!!” is

• This indication appears when the ambient temperature rises high. When the ambient

displayed.

temperature stays high, the lamp goes out.

 

J Eliminate any causes of the rise in the ambient temperature.

 

• This indication appears when the air inlet or outlet grille is blocked. When they are

 

kept blocked, the lamp goes out.

 

J Remove the objects blocking the air inlet or outlet grille. Clean the filter, if clogged.

 

 

The mark appears.

• This mark appears when ineffective operation is carried out. This isn’t a product

 

malfunction.

 

 

The remote control

• Check that the batteries are loaded in the remote control or the batteries are not

doesn’t function easily

weak. (See page 6.)

or at all.

• Check that the remote control sensor isn’t exposed to direct sunlight or fluorescent

 

light. (See page 9.)

 

• Use the remote control within its operation range. (See page 9.)

 

• Use the remote control at least 10 cm away from the projector.

 

 

The buttons on the

• PASSWORD FUNCTION in the FEATURE menu has been set to MENU ACCESS to

control panel (except

enable the password lock.

for the POWER

J Cancel the password lock or contact the person in charge of management of the

button) don’t function.

projector. (See page 34.)

 

 

If the following problem occurs after the lamp is replaced, check the following first.

Problem

Solution

 

 

The projector does not

• Fit the lamp cover securely. (See pages 35 and 36.)

turn on.

•

Reset the lamp operating time. (See page 36.)

 

 

 

The STATUS indicator

•

Reset the lamp operating time. (See page 36.)

blinks.

 

 

 

 

 

EN-40

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Contents HC4900 When using the projector in Europe Risk of Electric Shock Do not OpenContents Important safeguards Important safeguards Inserting the batteries into the remote control Checking accessoriesPreparing your projector Preparing your projector OverviewControl area Terminal panelRemote control Using the picture quality adjusting buttonsAdjustment feet Bottom sideUsing the remote control Operational range of the remote controlReception angle Front of projector Rear of projectorSetting up your projector Setting up the screenBasic setup Adjusting the projection angleSetting up your projector Front projection, ceiling mountingTrigger terminal Rear projectionWhen the aspect ratio of the image is When the aspect ratio of the screen isScreen size and projection distance 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 decoderWhen a TV tuner or VCR is connected Viewing video imagesConnection for video equipment having an Hdmi terminal Connection for video equipment having a DVI-D terminalPlugging in the power cord Projecting images To stop projecting Setting the aspect ratio ZOOM1 ZOOM2 StretchWith the remote control How to change the settingsWith the Feature menu See page 25 for menu setting Connecting the projector to a computer Plugging the power cordViewing computer images About DDCViewing computer images Projecting imagesExample of the setting procedure for external output When connecting to a notebook computerAuto Position button Menu operation Display InputHow to set the menus Available settings in the menusMenu operation Image menuInstallation menu Feature menu Signal menu User menuTo store the settings To enable the stored image quality settingsAV memory 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 To adjust the tone of white Color TempAbout color temperature To enable the stored color temperatureTo adjust the ratio of change in brightness Gamma Mode To enable the stored gamma modeHigh MIDTo adjust the vertical position LPFAdvanced features Password functionTo enable the password function To cancel the password functionInterval of lamp replacement Replacing the lampReset of the lamp operation time When removing the lamp from the ceiling-mounted projectorReplacing the lamp To replace the lampMaintenance Cleaning of the air-filterCleaning of the projector and the ventilation slots Cleaning of the lensTroubleshooting No image appears on the screen Problem SolutionTroubleshooting Images are not displayed correctly Problem SolutionOthers Problem Solution Indicators Status Condition Possible SolutionNormal condition Abnormal conditionDimension drawings unit mm SpecificationsSpecifications Connectors Replacement part Option/not included in the boxComputer IN/COMPONENT Video Hdmi DVI-D HdcpMitsubishi Projector Contact Information
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