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NEC VT770 manual Replacing the Lamp and Filters, 109, To replace the lamp

Models: VT770

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Page 109

8. Maintenance

Replacing the Lamp and Filters

After your lamp has been operating for 2000 hours (up to 3000 hours in Eco mode) or longer, the LAMP indicator in the cabinet will blink red and the message will appear. Even though the lamp may still be working, replace it at 2000 (up to 3000 hours in Eco mode) hours to maintain optimal projector performance.

CAUTION

•DO NOT TOUCH THE LAMP immediately after it has been used.

It will be extremely hot. Turn the projector off, wait 10 seconds, turn off the main power switch and then discon- nect the power cable. Allow at least one hour for the lamp to cool before handling.

•DO NOT REMOVE ANY SCREWS except the lamp cover screw and two lamp case screws. You could receive an electrical shock.

•The projector will turn off and go into stand-by mode after 2100 (up to 3100 hours in Eco mode) hours of service. If this happens, be sure to replace the lamp. If you continue to use the lamp after 2000 hours (up to 3000 hours in Eco mode) of use, the lamp bulb may shatter, and pieces of glass may be scattered in the lamp case. Do not touch them as the pieces of glass may cause injury. If this happens, contact your NEC dealer for lamp replacement.

To replace the lamp:

1.Loosen the lamp cover screw until the screwdriver goes into a free-wheeling condition and remove the lamp cover. The lamp cover screw is not removable.

D

JUST

SLAMP WTATUS

ER

	COMPONENT
R1	Y
R1			Cb/Pb
	AUDIO		Cb/Pb
	AUDIO		Cr/Pr
	S-
R2	VIDEO		L/MONOAUDIO
	AUDIO		L/MONOAUDIO
	AUDIO	VIDEO	R
		VIDEO	R

L/MONOAUDIO

R

			Catch
AD
JUST
LAMP
STATUS
OWER
			1	2
	COMPONENT			2
	COMPONENT
ER1	Y
ER1			Cb/Pb
	AUDIO		Cb/Pb
	AUDIO		Cr/Pr
	S-
ER2	VIDEO		L/MONOAUDIO
	AUDIO		L/MONOAUDIO
	AUDIO	VIDEO	R
		VIDEO	R

L/MONOAUDIO

R

2.Loosen the two screws securing the lamp housing until the screw-driver goes into a freewheeling condition. The two screws are not removable.

Remove the lamp housing by pulling on the handle.

NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock.

Interlock

D
JUST
LA
	MP
STATU
WER	S

COMPONENT
ER1	Y
ER1	Cb/Pb
AUD	Cb/Pb
AUD		Cr/Pr
IO		Cr/Pr
S-V
R2	IDEO
AUD	L	AUD	IO
AUD	/MONO		IO
IO	V
	IDEO		R

L	AUD	IO
/MONO

R

AD	JUST
	LA
		MP
OSTATU
WER		S

COMPONENT
ER1	Y
ER1	Cb/Pb
AUD	Cb/Pb
AUD		Cr/Pr
IO		Cr/Pr
S-V
ER2	IDEO
AUD	L	AUD	IO
AUD	/MONO		IO
IO	V
	IDEO		R

L	AUD	IO
/MONO

R

109

Image 109

NEC VT770 manual Replacing the Lamp and Filters, 109, To replace the lamp

Contents

VT770 Precautions Safety CautionsDOC Compliance Notice Acoustic Noise Information Ordinance-3. GsgvInstallation Important SafeguardsImportant Information RF Interference Important Information Fire and Shock Precautions To replace the lamp, follow all instructions provided on Important Information Lamp ReplacementTable of Contents Using the Viewer Introduction Introduction Whats in the Box?Introduction to the Projector Features you’ll enjoy on the VT770Congratulations on Your Purchase of the VT770 Projector Introduction Cb/Pb Part Names of the ProjectorIntroduction Carrying the Projector Introduction Top Features Introduction Terminal Panel Features USB Mouse Port Type a Video Input Connector Mini DIN 4 PinUSB Computer Port Type B PC Control Port D-Sub 9 PinVideo Button Part Names of the Remote ControlDVD player, laser disc player or document camera Component ME NU Select Remote Control Precautions Introduction Battery InstallationOperating Range for Wireless Remote Control Installation and Connections Installation and Connections Setting Up the Screen and the ProjectorSelecting a Location 150Distance Chart Installation and Connections Throw Distance and Screen SizeReflecting the Image Making Connections Connecting Your PC or Macintosh ComputerEnabling the computer’s external display To connect to a PC or Macintosh, simplyTo connect Scart output RGB To do so Installation and Connections Connecting an External MonitorAudio Equipment DVD player Video To make these connections, simplyCompone AUD Projecting an Image Projecting an Image Basic Operation Turning on the ProjectorPress the Enter button to execute the selection To select a menu language, follow these stepsSelecting a Source Detecting the Signal AutomaticallySelecting from Source List Adjust the Tilt Foot Adjusting the Picture Size and PositionFocus Projecting an Image Basic Operation ZoomUse the Focus ring to obtain the best focus Auto Keystone Correction Correcting Keystone DistortionManual Keystone Correction You can also correct keystone distortion manually To do soProjecting an Image Basic Operation Adjusting the Image Using Auto Adjust Turning Up or Down VolumeOptimizing RGB Picture Automatically After Use Turning off the ProjectorTo turn off the projector Preparation Make sure that the projector is not turned onConvenient Features Convenient Features Switching Operation Mode between Computer and ProjectorDuring Computer mode Turning Off the Image and SoundEnlarging and Moving a Pic- ture Using the PointerYou can enlarge the area you want up to 400 percent Operate the Menus using the USB mouse Using a USB MouseYou get the contents about Help Getting the On-line HelpConnecting to your computer for the remote mouse function Using the Remote Mouse FunctionWhen using the USB Port Cornerstone Confirmation screen is displayed Adjustable ranges for 3D Reform are as follows Making Freehand Drawings on a Projected Image ChalkBoard Exit On the remote control or projector cabinetAssigning a Keyword for the first time Preventing the Unauthorized Use of the ProjectorConvenient Features Convenient Features Convenient Features Checking If Security is enabled Convenient Features Disabling the Security Using a USB Memory Device or USB Memory Card Reader Using the Viewer Making the Most out of the Viewer Function Inserting the PC Card Using the Viewer Inserting and Removing a PC CardRemoving the PC Card Direction for Inserting the PC CardProjecting slides Viewer Operating the Viewer Function from the Projector playbackUsing the Viewer Viewer Window Elements Play Mode Using the Viewer Setting Option for ViewerAuto OffViewing Digital Images To delete captured images Using the Viewer Deleting Captured ImagesTo delete all the captured images This completes deletingChanging Background Logo Using Dynamic Image Utility On the supplied CD-ROM Using Dynamic Image Utility 2.0 on the supplied CD-ROM Introduction Contents of the Supplied CD-ROMLimitations of Liability OthersImage Express Utility 1.0 not available on this model Operating EnvironmentSoftware Installation Equipment Connections and SettingsDynamic Image Utility 2.0 Installation Starting/Exiting the Software UninstallingPreparation Please start Dynamic Image Utility Display HelpExit the Software Preparation Please start Viewer PPT ConverterCheck Points Countermeasures TroubleshootingUsing On-Screen Menu Using On-Screen Menu Using the MenusStores changes Menu Menu treeVideo Menu Elements Menu Descriptions & Functions Adjust Detail Settings Using On-Screen Menu PresetAdjusts Y/C delay level Adjusting Y/C Delay Level Y/C DelaySelecting Color Matrix Color Matrix Light yellowSelecting Interlace or Deinterlace I/P Converter Setting Vertical Edges Vertical EnhancerSelect this option for a still image Movie Select this option for a moving imageLeft & Right stretched with black borders on top and bottom Menu Descriptions & Functions ImageLeft and right stretched to display the true aspect Standard 169 aspectStretched to display in 169 aspect ratio Adjusting Horizontal/Vertical Position Position Using On-Screen Menu Adjusting Clock and Phase Pixel AdjustAdjusts the image location horizontally and vertically Select overscan percentage 0%, 5% and 10% for signalSetup Page1 Menu Descriptions & Functions SetupSelecting Aspect Ratio and Position for Screen Screen This is the default setting 100% Brightness Setting Lamp Mode to Normal or Eco Lamp ModeSelecting Menu Language Language Selecting Cornerstone Mode Cornerstone Using On-Screen Menu Selecting Keystone Mode KeystoneChanges will be saved even when you turn off the projector You can correct vertical distortion manually from the menuSetup Page2 Using Sleep Timer Sleep TimerDisabling the Cabinet Buttons Cabinet Button To assign your password Using On-Screen Menu Setting a Password Password LogoTo delete your password EntryUsing On-Screen Menu Security To register a PC card as a protect key To delete PC card data you registered Selecting a Color or Logo for Background BackgroundMenu can be turned off manually Setup Page3 Selecting Signal Format Signal SelectSelecting Color System Color System Connector Selecting S-Video Mode S-Video Mode SelectIdentifies the 169 or 43 signal Turning On / Off Source Display and Message Display SelectEnabling Power Management Power Management Using On-Screen Menu Selecting Menu Color Menu Color SelectBuilt-in fans run at a fixed high speed Enabling High Speed Fan Mode Fan ModeEnabling Auto Start Auto Start Using On-Screen Menu Enabling Standby Mode Standby ModeRemote Sensor Setup Page5 Resetting the Filter Usage Hours Filter UsageClearing Lamp Hour Meter Lamp Hour 100 Setting Mouse Pointer, Button and Sensitivity MouseSelecting Projecting Pointer Icon Pointer Pointer 1101 Using On-Screen Menu Selecting the ChalkBoard ChalkBoard102 Menu Descriptions & Functions InformationRemaining Lamp Time Display Returning to Factory Default Menu Descriptions & Functions Reset103 Using the Entry List Entering the Currently Projected Signal into the Entry ListEntry List 104105 Using On-Screen Menu Entry Edit Command106 MaintenanceMaintenance Cleaning the Filters107 108 Cleaning the Lens109 Replacing the Lamp and FiltersTo replace the lamp 110 111 Maintenance Replacing the FiltersTo replace the filters sponge 112 Appendix113 Indicator MessagesAppendix For more information contact your dealer 114115 Model Number VT770 Specifications116 OpticalAppendix Mechanical 117118 Cabinet DimensionsUnit mm inch Mini D-Sub 15 Pin Connector Pin Assignments of D-Sub Computer 1/2 Input ConnectorPin No RGB Signal Analog 119120 Compatible Input Signal ListPC Control Codes and Cable Connection PC Control Connector D-SUB 9P121 PC Control Codes122 Using Software Keyboard123 TravelCare GuideAsia and Middle East 124Company & Name with signature 125126 Condition of your TravelCare Service Program