Mitsubishi Electronics WD720U, XD700U user manual Troubleshooting

Page 54

Troubleshooting (continued)

No image appears on the screen. (continued)

Problem

Solution

 

 

The screen for

• Password in the Password menu has been set to On to enable the password lock.

entering the password

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

appears.

projector. (See page 48.)

 

 

“No signal” is

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

displayed.

wrong 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 25.)

 

• When the input signal is a WXGA video signal, confirm the setting selected in WXGA

 

in the Option menu.

 

• When the input signal is other than a WXGA video signal, select Off in WXGA in the

 

Option menu.

Projected images are

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

distorted.

page 16.)

Projected images are

• Adjust Brightness and Contrast in the Picture menu. (See page 31.)

dark.

• Replace the lamp. (See page 51.)

Projected images are

• Adjust the focus. (See page 17.)

blurred.

• Clean the lens.

 

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

 

• Adjust Tracking and Fine sync in the Signal menu. (See page 25.)

 

• Adjust Brightness and Contrast in the Picture menu. (See page 31.)

 

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

 

page 16.)

Afterimages persist on

• This phenomenon is improved by keeping projecting an evenly bright image. (Such

the screen.

“image burn-in” phenomenon where afterimages persist on the screen may occur if a

 

stationary image is kept displayed on the screen for a long time.)

White dots are seen

• This phenomenon is normal for a DLP™ projector and is not a malfunction. (A very

on projected images.

small number of pixels may visibly or invisibly be persistent all the time, but they are

Black dots are seen

not a sign of system malfunctions. Over 99.99% of the pixels are effective.)

on projected images.

 

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, game console or computer you use. In such a case, you

 

can reduce such streak noise by enabling the LPF.

EN-54

Image 54
Contents XD700U WD720U Risk of Electric Shock Do not Open Contents Important safeguards Use correct voltage Important safeguardsNever remove the cabinet Do not modify this equipment Do not block the intake and exhaust ventsOverview Control panel Terminal panel1011 12 13 Bottom side Remote control OverviewOperation range of the remote control Remote controlBattery installation Inserting the batteries into the remote controlFor XD700U InstallationScreen size and projection distance For WD720UWhen the aspect ratio of the image is 1610 Wxga InstallationWhen the aspect ratio of the screen is When the aspect ratio of the image isCeiling mount installation Front projection, ceiling mountingRear projection Basic connections Projector + AV deviceProjector + DVD player or Hdtv decoder Basic connections Connection for video equipment having an Hdmi terminalProjector + Computer For computer with mini D-SUBAdjusting the position of the projected image PreparationPreparation for projection Using the adjustment feet front Adjustment of the projection angleWhen projected images are distorted to a trapezoid PreparationPower-on Status PowerBasic operation Basic operation With the remote control Setting the aspect ratioWhen connecting to a laptop computer Watching 3D content With the Picture menuEN-20 You can make various settings using the displayed menus Menu operationMenu operation How to set the menusInstallation Main MenuPicture menu Setting FunctionMenu items PictureVideo Image menu Video ImageRGB Signal menuSignal LPFAudio menu AudioInstallation menu Efficient ModeLAN Option menu WxgaOption Dhcp Network Config menuSET SsidInformation menu DescriptionInformation To adjust the color Color and Tint Image adjustmentTo adjust the brightness Contrast and Brightness To adjust the tone of white Color TempColor Management Image adjustmentImage GammaTo adjust the horizontal position How to adjust the computer imageSimple method to adjust the image position To adjust the vertical positionNetwork Password settings Network settingsSetting Projector Name Enabling or disabling the network certificationSetting or clearing Dhcp Network settingsIP Config settings IP Address settingsSetting or clearing Dhcp Function Subnet Mask settingsDefault Gateway settings Start IP Address settingWireless Setting Ssid setting Channel settingEncryption setting How to use network function Initialization of network settingsWireless Setup setting Restart of network functionConnection Advanced display utilitiesUSB Display OperationInstalling LAN Display System Installation of softwareWhen deleting LAN Display System Uninstallation Important Advanced display utilitiesProjection Hide UI Using remote desktopInstalling the virtual display driver AboutInstallation of PtG Converter-Lite PC Less PresentationPerforming the PC Less Presentation Selecting a PC Less Presentation inputDisplaying PtG file Setting upOFF Displaying Jpeg fileDisplaying with AutoRun function Displaying with slideshow functionEnding the PC Less Presentation Freeze Advanced featuresDisplaying a user-defined image during startup or muting MagnifyTo enable or disable password lock Advanced featuresPassword lock To set a passwordMajor functions PJLink supported commands Lamp replacement When the projector is placed on the tableWhen the projector is mounted to the ceiling Lamp replacement Reset of the lamp operation timeInterval of lamp replacement Troubleshooting No image appears on the screen Problem SolutionTroubleshooting Images are not displayed correctly Problem SolutionOthers Problem Solution Cleaning of the lens MaintenanceCleaning of the projector and the vents Kensington LockNormal condition IndicatorsCondition Possible Solution Abnormal conditionSpecifications YPBPR/YCBCRDimension drawings unit mm SpecificationsConnectors Replacement part option/not included in the boxEN-60 Zusho Baba, Nagaokakyo-City, Kyoto Japan