JVC DLA-HD750 manual Troubleshooting

Page 44

5 Troubleshooting

Troubleshooting

Before sending the unit to your authorized dealer for repair, please check the following points.

The following situations are not malfunctions.

■You do not need to worry about the following situations if there is no abnormality on the screen.

●Part of the top surface or front of the unit is hot.

●A creaking sound is heard from the unit.

●An operating sound is heard from the inside of the unit.

●Color smear occurs on some screens.

■Perform the following operations when the unit is unable to operate normally due to external static or noise.

①When the unit is in standby mode, please pull out the power plug, then insert again.

②Press the power button on the unit to turn on the power again.

■A sound may be heard when the lamp is off but there is no danger.

■D-ILA device is manufactured using high-precision technology but there may be some missing pixels or pixels that remain permanently lit up.

Power is not supplied

Is the power cord disconnected? Insert the power cord (plug) firmly.

P26

Is the lamp cover properly shut?

Remove the power plug when the unit is in standby mode and

P49

close the lamp cover properly. After that, insert the plug again.

 

 

Is the lamp in Cool Down mode?

After the Cool Down mode is complete, turn on the power

P27

again.

 

 

Projected image is dark

Is the lamp near exhaustion?

Check the lamp time on the information menu. Prepare a new lamp unit or replace as soon as possible when the lamp is near exhaustion.

P48 to 50

The unit works when power is turned on but stops abruptly after a few minutes

Are the air inlets and exhaust

Remove the power plug when the unit is in standby mode and

P14 to 15

vent blocked?

remove any blocking object. After that, insert the plug again.

 

Is the filter dirty?

Clean the filter.

P51

Video image does not appear

 

 

Is the correct external input

Select the correct external input.

P26

selected?

 

 

Is the AV device properly

Connect the AV device properly.

P18 to 21

connected?

 

 

Is the power of the AV device turned

Turn on the power of the AV device and play the video.

P26

on?

 

 

Are the correct signals being

Set the AV device properly.

P18 to 21

output from the AV device?

 

 

Is the setting of the input terminal Set “COMP.” and “HDMI” in the setting menu according to

P35 - 11 12

correct?

the input signal.

 

Is the video image temporarily

Press the [HIDE] button to display the video image again.

P27

hidden?

 

 

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Contents DLA-HD750 PB006597999-0SafetySafetyPrecautionsPrecautions About the installation placeMachine Noise Information Germany only ManufacturerDo not allow any unqualified person to install the unit EnglishFor USA and Canada only Use only the following power cord Power cordFor United Kingdom For European continent Countries Important Europe onlyBattery Products Batterie ProduktePile Produits Batterij ProductenBaterías/pilas Productos Batteria ProdottiPilha Produtos Μπαταρία ΠροϊόνταBatteri Produkter Akku TuotteetБатарея Изделия Baterie ProduktyBateria Produkty Akkumulátor TermékekTHX Certification THX CertificationMain Features Supports Multiple Digital DevicesPerfect for Any Location Contents Check the Accessories Optional AccessoriesAbout this Manual Conventions in this manualControls and features Front Side/Left SideRear Side/Top Side/Right Side P26Bottom Surface Controls and features Remote ControlTo turn off the power To control lens P26 To adjust brightness P42 To display test patternHow to Use the Remote control Effective Range of Remote Control UnitWhen directing the remote control toward this unit When reflecting off a screenSelecting Connecting Devices PreparationConnecting Connecting via Video Cable and S-Video CableConnecting via Component Video Cable This unitConnecting Connecting via Hdmi CableConnecting via HDMI-DVI Conversion Cable This unitConnecting via SCART-RCA Cable Connecting via RGB Video CableRGB video output terminals This unit DVD player for European marketThis unit Screen Connecting via PC CableConnecting via Trigger Cable Installing the Projector and Screen Shift AdjustmentInstalling the projector and screen Set AngleInstalling the Projector Screen LensScreen Size and Projection Distance Projecting Image Turn off the power About Cool Down modeFocus Zoom Shift You can hide the image temporarilyConvenient Features during Projection Setting the Screen SizeMasking the Surrounding Area of an Image Input ImageMask the image To endSetting Menu Procedures for Menu OperationDisplay the setting menu Select Input Signal AspectVideoSetting Menu Picture AdjustColor Temp Setting MenuPicture Adjust Color Temp Picture Adjust Gamma GammaLens Aperture ResetAdvanced Comp Input Signal HdmiInput Signal Comp Input Signal Video/S-Video Input Signal PCInput Signal Picture Position Input Signal Aspect VideoInput Signal Aspect Computer Input Signal Over ScanInput Signal Mask Input Signal Film ModeInstallation Lens Control Installation Pixel AdjustInstallation Installation Style Installation KeystoneDisplay Setup Back Color Display Setup Menu PositionDisplay Setup Menu Display Display Setup Line DisplayDisplay Setup Language Function Lamp PowerFunction Trigger Function Test PatternFunction Off Timer Function High Altitude ModeOff Timer High Altitude ModeChanging the Initial Setting Picture Mode Select picture modeAdjust picture quality Other items can also be adjusted To endRegistering User-defined Picture Mode Select the picture modeRegistering User-defined Picture Mode from the Menu Register the settingTroubleshooting TroubleshootingIs the setup of Control with Hdmi Is the image correctly adjusted?Has setting been performed for Are batteries installed correctly?What to Do When these Messages Are Displayed Time Frequency Actions to Be Taken for Warning ModeIndicator Blinking Interval No. Warning Between Content Replacing the Lamp Remove the lamp coverLoosen the screws on the lamp unit Pull out the lamp unitInstall the new lamp unit Tighten the screws of the new lamp unitAttach the lamp cover Tighten the screws with a screwdriverResetting Lamp Time After replacing the lamp, reset the lamp timeReset the lamp time only when you have replaced the lamp Replacing the LampCleaning and Replacing the Filter Clean the filterReinstall the inner filter If the filter is damaged or too dirty to be cleanedRS-232C Interface RS-232C SpecificationsCommand Format End Command and dataCommand Type Data description Binary code Remote control codeRS-232C Interface Operating command Type Command DescriptionReference command RS-232C Communication ExamplesCopyright and Caution About Trademarks and CopyrightDirt on the cabinet Dirt in the air inletsLocations Air inlets Mounting this UnitCeiling Specifications PC compatible signals Specifications Top Surface Bottom SurfaceFront Back Surface
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