NEC MT 1020G /820G user manual A I N T E N a N C E, Replacing The Lamp, To replace the lamp, Step

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4 M A I N T E N A N C E

This section describes the simple maintenance procedures you should follow to replace the lamp, clean or replace the filter, and replace the batteries in the remote control.

Replacing The Lamp

After your lamp has been operating for 2000 hours or longer, the “status” light in the cabinet will go on. Even though the lamp may still be working, replace it at 2000 hours to maintain optimal projector performance.

CAUTION

• DO NOT TOUCH THE LAMP immediately after it has been used. It will be extremely hot. Allow at least one hour for the lamp to cool before handling.

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

• Turn off the main power to the projector and disconnect the power cord. Allow at least one hour for the lamp to cool.

The projector will turn off and be in standing by after 2100 hours of service. If this happens, be sure to replace the lamp.

If you continue to use the lamp after 2000 hours 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.

Interlock

To replace the lamp:

1.Remove the single screw that secures the lamp housing cover and remove the cover.

2. Remove the two screws securing the lamp case. (There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock.)

3. Remove the lamp by pulling out the complete assembly.

4. Install a new lamp case assembly and secure it in place with the two screws.

CAUTION: Do not use a lamp other than the NEC replacement lamp.

Order this from your NEC dealer using your projector's model number.

5. Reattach the lamp cover and reinstall the single screw.

6. After you install a new lamp, select the lamp Usage icon and press and hold the "Power On" button on the remote control for ten seconds to reset the lamp time clock to zero.

NOTE: If resetting the lamp clock back to zero after 2100 hours of service, press the "Power Off" (not "Power On") button on the remote control for ten seconds .

NOTE: When you replace the lamp, it is also wise to replace the filter. The filter comes in the same package with your replacement lamp.

CAUTION: Do not put the LCD projector on end except to replace the air filter.

Step 1A

Step 1B

Step 2

Step 3

Step 4

Step 5

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Contents MultiSync MT 1020G /820G LCD Projector User’s Manual Precautions Installation Power SupplyCleaning Lamp ReplacementB L E O F C O N T E N T S Features you’ll enjoy include N T R O D U C T I O NHow Do You Get Started? What’s In The Box?Rear Features Front FeaturesRight Side Features Left Side Features Top Features Terminal Panel Features 6RGB Input 1 Connector D-Sub 15 pin 7RGB Input 2 Connector Mini D-Sub 15 pin9RGB Monitor Output Connector Mini D-Sub 15 pin RGB 1 Audio Input Mini JackRemote Control Features Remote Control Precautions Setting Up Your MultiSync MT1020G/820G LCD Projector InstallationUsing the Supplied Lift Kit Using a Tabletop Or Cart Side viewReflecting The Image Ceiling InstallationRear Screen Projection Wiring Diagram Connecting Your PC Or Macintosh Computer Windows MacintoshConnecting Your VCR Or Laser Disc Player Connecting Your Document CameraConnecting An External Monitor Connecting Your Remote Mouse Receiver Remote Mouse Receiver as a mouse for your computer P E R a T I O N Using The Menus Menu Descriptions & Functions Image Mode Picture Adjustment** when Auto Picture is offFine Picture** when Auto Picture is off Power MenuSettings Menu Custom MemoryImage Loop BackgroundReset LanguageA I N T E N a N C E Replacing The LampTo replace the lamp StepCleaning Or Replacing The Filter Remote Control Battery InstallationTroubleshooting Status Light MessagesCommon Problems & Solutions Problem Check These ItemsSpecification S OpticalElectrical MechanicalDimensions PC 15-Pin mini D-Sub Macintosh 15-Pin D-Sub Sub Pin AssignmentsPC 15-Pin mini D-Sub Timing Chart Yes/No Signal Resolution Refresh Dot Rate Hz KHz ClkMHzPC Control Command Reference Command Codes Function Code Data DescriptionPC Control Connector DIN-8P Cable Connection Communication Protocol