Nec MT 1020G /820G User Manual download pdf (Page 28)

E – 28

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.

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.

MAINTENANCE

Step 1A

Step 1B

Step 2

Step 3

Step 4

Step 5

Interlock

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Nec MT 1020G /820G User Manual Page 28

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