Mitsumi electronic HC3800 user manual Troubleshooting

Page 41

Troubleshooting (continued)

No image appears on the screen. (continued)

Problem

Solution

 

 

The screen for

• PASSWORD FUNCTION in the FEATURE menu has been set to DISPLAY INPUT to

entering the password

enable the password lock.

appears.

Enter the password or contact the person in charge of management of the projector.

 

(See page 35.)

 

 

“NO SIGNAL” is

• Turn on the power of the connected device, or check whether there is something wrong

displayed.

with the connected device.

 

• Check whether the external device output signals. (Check this especially when the

 

external device is a notebook computer.)

 

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

 

• Check that the projector is connected to the external device using the correct terminals.

 

• Check that the connected device is correctly selected as the input source.

 

• When an extension cord is being used, replace it with the supplied cable and check

 

whether images are projected correctly. If images are projected correctly, use an RGB

 

signal amplifier along with the extension cord.

Images are not displayed correctly.

Problem

Solution

 

 

Projected images are

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

shaking.

• Connect the cable’s plug with the external device’s connector firmly.

Projected images are

• Press the AUTO POSITION button.

displaced.

• Some computers output out-of-spec signals on rare occasion. Adjust the SIGNAL

 

menu. (See page 34.)

 

 

Projected images are

• Adjust the projector and the screen so that they are perpendicular to each other. (See

distorted.

page 10.)

 

 

Projected images are

• Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 31.)

dark.

• Replace the lamp. (See page 36.)

 

 

Projected images are

• Adjust the focus. (See pages 18 and 23.)

blurred.

• Clean the lens.

 

• Press the t or u button on the remote control to eliminate flicker.

 

• Adjust TRACKING and FINE SYNC. in the SIGNAL menu. (See page 34.)

 

• Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 31.)

 

• Adjust the projector and the screen so that they are perpendicular to each other. (See

 

page 10.)

 

 

White dots are seen

• This symptom is normal for a DLPTM projector and is not a malfunction. (A very small

on projected images.

number of pixels may stay lit or out, but such symptom is not a malfunction. Pixels of

Black dots are seen on

99.99% or more are effective.)

projected images.

 

 

 

Rainbow effect is seen

• This is due to color breaking noise that occurs in a DLPTM system and is not a

on projected images.

malfunction.

 

 

Fine streaks are seen

• This is due to interference with the screen surface and is not a malfunction. Replace

on projected images.

the screen or displace the focus a little.

 

• Vertical or horizontal streak noise may appear on the projected image, depending on

 

the type of the DVD player or game console you use. In such a case, you can reduce

 

such streak noise by enabling the LPF. (See page 29.)

 

 

Projected images

• Connect the plugs of the cables to external devices securely.

become wavy.

• Keep the projector away from devices that emit interfering radio waves.

 

• When the keystone adjustment is carried out, the image may not be displayed correctly

 

because of the type of input signal. This isn’t a product malfunction. In this case,

 

readjust the keystone so that the amount of keystone correction is as small as possible.

 

 

Hue is not appropriate.

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

 

 

Tint in projected

• Check that COMPUTER INPUT in the SIGNAL menu is correctly set. (See page 29.)

images is incorrect.

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

 

 

EN-41

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Contents HC3800 Risk of Electric Shock Do not Open When using the projector in EuropeContents Important safeguards Important safeguards Removing the batteries from the remote control Inserting the batteries into the remote controlPreparing your projector What’s included in the boxOverview Preparing your projectorControl panel Terminal panelBottom side Remote controlUsing the picture quality adjusting buttons Reception angle Using the remote controlOperational range of the remote control Setting up the screen Setting up your projectorWhen the aspect ratio of the screen is Screen size and projection distanceWhen the aspect ratio of the image is Setting up your projectorWhen the aspect ratio of the screen is 2.351 CinemaScope When projected images are distorted to a trapezoid When fine streaks are seen on projected imagesWith the Installation menu See page 26 for menu setting To cancel the menuFront projection, ceiling mounting InstallationRear projection Trigger terminalViewing video images Connecting the projector to video equipmentBasic home theater system connection PreparationConnecting to a DVD player or Hdtv decoder Connecting to a video player, etcWhen a TV tuner or VCR is connected Viewing video imagesConnection for video equipment having an Hdmi terminal Connecting to video equipment having a Hdmi terminalPlugging in the power cord Projecting images To stop projecting ZOOM1 ZOOM2 Stretch ANAMORPHIC1 ANAMORPHIC2 Setting the aspect ratioWith the Feature menu See page 26 for menu setting How to change the settingsWith the remote control Plugging the power cord Connecting the projector to a computerViewing computer images About DDCComputer Viewing computer imagesSetting of the resolution When connecting to a notebook computerExample of the setting procedure for external output Auto Position buttonMenu operation Feature Signal Keystone Lamp ModeAvailable settings in the menus How to set the menusSetting Function Menu operationInstallation menu Feature menu User menu Signal menuTo enable the stored image quality settings To store the settingsAV memory Information menuTo adjust the brightness Contrast and Brightness Adjusting projected imagesTo adjust the color Color and Tint How to Use BrilliantColorTMTo adjust the tone of white Color Temp Adjusting projected imagesAbout color temperature To enable the stored color temperatureTo adjust the ratio of change in brightness Gamma Mode How to Use Color ManagementBlue Magenta RED HighLPF Progressive filter To enable the stored gamma modeTo adjust the vertical position Password function Advanced featuresTo enable the password function To cancel the password functionReplacing the lamp Interval of lamp replacementTo replace the lamp When the projector is mounted to the ceilingReplacing the lamp Reset of the lamp operation time Cleaning of the lens MaintenanceCleaning of the projector and the ventilation slots No image appears on the screen Problem Solution TroubleshootingImages are not displayed correctly Problem Solution TroubleshootingOthers Problem Solution EN-43 Status Condition Possible Solution IndicatorsNormal condition Abnormal conditionDimension drawings unit mm SpecificationsSpecifications Replacement part option/not included in the box ConnectorsComputer IN/COMPONENT Video VLT-HC3800LPMitsubishi Electric Corporation

HC3800, HC3800 specifications

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