Panasonic PT-LB78U manual Troubleshooting

Page 43

Troubleshooting

Should any problem persist, contact your dealer.

Problem

Cause

Reference

 

page

 

 

 

 

 

 

 

 

 

 

 

The power cord may not be connected securely.

18

 

 

 

No electric supply at the wall outlet.

19

 

 

Power does not turn on.

TEMP indicator is lit or flashes.

39

 

 

LAMP indicator is lit or flashes.

39

 

 

 

 

 

 

The lamp unit cover has not been securely installed.

42

 

 

 

The circuit breakers have tripped.

-

 

 

 

 

 

 

 

 

The signal input source may not be connected to a terminal properly.

17

 

 

No picture appears.

The input selection setting may not be correct.

24

 

 

The BRIGHTNESS adjustment setting may be at the minimum setting.

30

 

 

 

The signal input source may not be operating properly.

-

 

 

 

The AV MUTE function may be in use.

24

 

 

 

The lens focus may not have been set correctly.

22

 

 

The picture is fuzzy.

The projector may not be at the correct distance from the screen.

15

 

 

The lens may be dirty.

40

 

 

 

 

 

 

The projector may be tilted too much.

15/16

 

 

 

 

 

 

 

The color is pale or grayish.

COLOR or TINT adjustment may be incorrect.

30

 

 

The input source which is connected to the projector may not be

28

 

 

 

adjusted correctly.

 

 

 

 

 

 

 

 

No sound can be heard

The audio signal source may not be connected properly.

17

 

 

A cable may be connected to the VARIABLE AUDIO OUT terminal.

13

 

 

from the internal speaker.

 

 

The volume adjustment may be at the lowest possible setting.

25

 

 

 

 

 

 

 

 

 

 

The control buttons of the

CONTROL PANEL in OPTION menu is invalidated. If you have a loss

 

 

 

of the remote control while the CONTROL PANEL is invalidated,

35

 

 

projector do not operate.

press and hold the MENU button for 2 seconds with pressing the

 

 

 

 

 

 

ENTER button.

 

 

 

 

The batteries may be weak.

-

 

 

The Remote control does

The batteries may not have been inserted correctly.

14

 

 

The remote control signal receptor on the projector may be

23

 

 

not operate.

obstructed.

 

 

 

 

The remote control unit may be out of the operation range.

23

 

 

 

The remote control is under the strong light such as fluorescent.

23

 

 

 

 

 

 

 

The picture does not

The signal format (TV-SYSTEM) may not have been set correctly.

31

 

 

There may be a problem with the VCR or other signal source.

-

 

 

display correctly.

 

 

A signal which is not compatible with the projector is being input.

44

 

 

 

 

 

 

 

 

 

 

 

The cable may be longer than the optional cable.

-

 

 

 

The external video output from a laptop computer may not be correct.

46

 

 

Picture from a computer

(You may be able to change the external output settings by pressing

 

 

 

the [Fn] + [F3] or [Fn] + [F10] keys simultaneously. The actual method

 

 

 

does not appear.

 

 

 

varies depending on the type of computer; refer to the documentation

 

 

 

 

 

 

 

 

provided with your computer for further details.)

 

 

 

 

 

 

 

 

COMPUTER2 SELECT setting in OPTION menu is not correct.

34

 

Maintenance

 

 

 

 

 

 

 

 

 

 

 

 

 

ENGLISH - 43

Image 43
Contents PT-LB80U PT-LB78U PT-LB75NTU PT-LB75U PT-LB80NTU /PT-LB80U /PT-LB78U /PT-LB75NTU /PT-LB75U Important Safety NoticeImportant Information Model numberDeclaration of Conformity Important Safety NoticePanasonic Contents Appendix SettingsMaintenance ContentsPrecautions with regard to safety Always disconnect all cables before moving the projector Precautions with regard to safetyDo not set up the projector outdoors Do not look into the lens while the projector is being usedDo not mix old and new batteries Remove the used batteries from the remote control promptlyDo not put your weight on this projector Use only the specified batteriesLiquid crystal panel SecurityOrder to get the best picture quality Optical componentsM 5’10 AccessoriesK1HA15DA0002 Read this first Minimum required setting screenPreparation Control panel About Your ProjectorProjector body Top and front viewBack and bottom view Attaching a hand strap Remote controlBattery compartment Top view About Your ProjectorStarted Setting upCalculation methods for screen dimensions Screen size and throw distanceMounting in the ceiling and projecting from front Front leg adjusters and throwing angleSetting up Projection methodConnections Connecting example AV equipmentConnecting example Computers Connecting with Video IN/S-VIDEODirect power off function Switching the projector on/offPower cord ConnectingBy direct power on function Switching on the projectorSwitching the projector on/off By control panel operation By remote control operationBy control panel operation Switching off the projectorBy remote control operation By direct power off functionIndicator Power and Power Lock indicatorsPower Lock indicator status Power indicator statusProjecting an image Selecting the input signalPositioning the image Facing to the projector Remote control operationSetting up the image position automatically Operating rangeCapturing an image Switching the input signalResetting to the factory default settings Remote control operationOperation Projecting an image in INDEX-WINDOW modeUsing an assigned function Controlling the volume of the speakerPress any side of the Digital Zoom +/- button once Enlarging the centered areaEnlarging the image Shifting the center pointNavigating through the Menu Menu NavigationTV-SYSTEM Still ModeMain menu and Sub-menu Menu NavigationClosed Caption Setting Picture menu For S-VIDEO/VIDEO signals Detailed SetupFor RGB signals Position menu S43 Frame LockPosition menu 169Option menu Auto Setup Lamp PowerPower OFF Timer Direct Power onOption items Refer Closed Caption SettingFunction Button Test PatternText Display Password ChangeInput Password Security menuItems in Wireless menu Wireless menuWireless menu, the following items are available Temp indicator Lamp and Temp IndicatorsManaging the indicated problems Lamp indicatorCleaning the projector Care and ReplacementBefore replacing the lamp unit Care and ReplacementWhen to replace the Lamp unit Replacing the Lamp unitResetting the Lamp Runtime Care and Replacement Replacement procedureRemoving and replacing the lamp unit Troubleshooting Dots*1 KHz MHz List of compatible signalsTechnical Information Quality*2Serial terminal Projector Technical Information Cable specificationsControl commands Computer connection guidancePT-LB80NTU Screen size and throw distance for 169 aspect ratioPT-LB75NTU Specifications Computer Audio VideoComputer AudioTrademark acknowledgements DimensionsUnit mm Index Index PowerNuméro de série Avis important concernant la sécuritéInformation Importante Numéro de modèleAvertissement Avis important concernant la sécuritéDéclaration de conformité Avertissements Précautions de sécuritéNe pas utiliser le projecteur à lair libre Mises EN GardePrécautions de sécurité Ne pas obstruer les orifices dentrée et de sortie dairUtiliser uniquement les piles spécifiées Retirer les piles usées de la télécommande au plus vitePrécautions lors du transport Sinon cela peut causer des chocs électriquesAffichage à cristaux liquides Précautions lors de linstallationPrécautions lors de lutilisation SécuritéDélai de remplacement de lUnité de la lampe Remplacement de lunité de la lampeAvant de remplacer le lunité de la lampe LA Lampe Retirer et remplacer la lampeRéinitialisation de Durée DE LA Lampe Sur Valider