Mitsubishi Electronics HC7800DW user manual Others Problem Solution

Page 54

Troubleshooting (continued)

Images are not displayed correctly. (continued)

Problem

Solution

 

 

 

Tint in projected

• Check that COMPUTER INPUT in the SIGNAL menu is correctly set. (See page 34.)

images is incorrect.

• Check that the cable connected to the external device isn’t broken.

 

 

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.

 

 

Color unevenness

• Since the projector utilizes a high-definition DLP™ chip, color variations (at the center

appears in images.

of the screen and along the rims of the active area) that are caused by diffraction of

 

light may occur. 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 59.)

 

 

 

Image remains

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

freezing.

is not a malfunction.

 

Noise appears around

• In some images such as DVD, noise may appear around the recorded image. In this

the image.

case, decrease the setting value of OVER SCAN of the SIGNAL menu. (See page 34.)

Projected images are

• After the POWER button or ON button on the remote has been pressed, or the Lamp

flickering.

mode setting has changed, images may be flickering

until the lamp lights stably. This

 

is an expected behavior.

 

 

• When selecting the input signal and Auto Position, the projected image may be

 

flickering temporarily. This is not a product malfunction.

Others

 

 

 

 

 

Problem

Solution

 

 

 

No sound comes

• The projector is not equipped with the speakers. The AV amplifier reads the

from the speakers

information that projector is not equipped with the speakers and then passes this

connected to the AV

information along to the DVD player. Because of this, either the DVD player may be

amplifier. (No sound

temporarily stopping audio output, or the AV amplifier

may be temporarily stopping

comes from the

audio output from the DVD player.

 

home theater system

Change the setting on the AV amplifier or the DVD

player.

speakers.)

 

 

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.

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.

 

 

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.

 

 

Remove the objects blocking the air inlet or outlet grille.

 

 

The mark appears.

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

 

malfunction.

 

EN-54

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Contents HC7800D Risk of Electric Shock Do not Open Contents Important safeguards Important safeguards Preparing your projector Inserting the batteries into the remote controlRemoving the batteries from the remote control What’s included in the boxPreparing your projector OverviewControl panel Remote control Picture quality adjusting buttonsPicture quality selection buttons Using the remote control Operational range of the remote controlReception angle When the aspect ratio of the screen is Setting up your projectorSetting up the screen Screen size and projection distanceSetting up your projector When the aspect ratio of the screen is 2.351 CinemaScopeWhen the aspect ratio of the image is When projected images are distorted to a trapezoid Adjusting the position of the projected imageWhen fine streaks are seen on projected images Correcting skewed or distorted imageFront projection, ceiling mounting Trigger terminalRear projection Basic home theater system connection Connecting the projector to video equipmentViewing video images PreparationConnecting to a DVD player or Hdtv decoder Viewing video imagesConnecting to video equipment having a Hdmi terminal Connection for video equipment having an Hdmi terminalPlugging in the power cord Projecting images To stop projecting Setting the aspect ratio ZOOM1 ZOOM2 Stretch ANAMORPHIC1 ANAMORPHIC2How to change the settings With the remote controlViewing computer images Connecting the projector to a computerPlugging the power cord About DDCViewing computer images ComputerExample of the setting procedure for external output When connecting to a notebook computerSetting of the resolution Auto Position buttonInstalling the 3D emitter Viewing 3D images3D images viewing To change the 3D viewing modeViewing 3D images To view 3D imagesEN-27 You can make various settings using the displayed menus Menu operationPress the Menu button How to set the menusMenu operation Menu selection bar is displayedMenu items Image menuScreen Size Setting Function Advanced MenuSetup Auto Vertical LocationInstallation menu Feature menu Signal menu Network menu Adjusting projected images Information menuAV memory To adjust the color Color and Tint Adjusting projected imagesTo adjust the brightness Contrast and Brightness To sharpen or soften the projected image SharpnessTo enable the stored color temperature To adjust the tone of white Color TempAbout color temperature To optically brighten or darken projected images Auto IrisTo use Color Management To adjust the ratio of change in brightness Gamma ModeTo enable the stored gamma mode BLUEMAGENTAREDTo adjust the vertical position LPF Progressive filterTo enable the password function Advanced featuresPassword function To cancel the password functionAdvanced features Major functionsPJLink supported commands ConnectionInitial network settings Setting projector nameNetwork password settings Setting or clearing Dhcp Initial network settingsIP settings IP address settingsDefault gateway settings Initialization of network settingsSubnet mask settings Enabling or disabling the PJLink certificationHow to use network function GlossaryDhcp Interval of lamp replacement Replacing the lampWhen the projector is mounted to the ceiling Replacing the lampReset of the lamp operation time Maintenance Cleaning of the projector and the ventilation slotsCleaning of the lens Troubleshooting No image appears on the screen ProblemTroubleshooting No image appears on the screen Problem SolutionImages are not displayed correctly Problem Solution Others Problem Solution EN-55 EN-56 Condition Possible Solution IndicatorsPower Status Condition Normal conditionSpecifications Dimension drawings unit mmSpecifications 3D supported signalsCOMPUTER/COMPONENT Video Hdmi 1, Hdmi ConnectorsReplacement part option/not included in the box VLT-HC7800LPZusho Baba, Nagaokakyo-City, Kyoto Japan
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