4. MAINTENANCE
This section describes the simple maintenance procedures you should follow to replace the lamp and clean the filter.
Replacing the Lamp
After your lamp has been operating for 1000 hours (2000 hours : Eco mode) or longer, the “Status” light in the cabinet will go on and the message will appear. Even though the lamp may still be working, re- place it at 1000 (2000 hours : 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 a full minute, and then disconnect 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 housing screws. You could receive an electric shock.
•The projector will turn off and go into stand by mode after 1100 (2200 hours : Eco mode) hours of service. If this happens, be sure to replace the lamp. If you continue to use the lamp after 1000 hours (2000 hours : Eco mode) of use, the lamp bulb may shatter, and pieces of glass may be scattered in the lamp housing. 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 freewheeling condition and remove the lamp cover. The lamp cover screw is not removable.
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 out the handle.
NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock.
3.Insert a new lamp housing until the lamp housing is plugged into the socket.
CAUTION: Do not use a lamp other than the NEC replacement lamp (LT55LP). Order this from your NEC dealer.
Secure it in place with the two screws.
Be sure to tighten the screws.
4.Reattach the lamp cover.
Tighten the lamp cover screw.
Be sure to tighten the screw.
5.After you install a new lamp, select [Menu] → [Projector Op- tions] → [Setup]→[Page 4]→[Clear Lamp Hour Meter] to reset the lamp usage hours.
NOTE: When the lamp exceeds 1100 hours (2200 hours : Eco mode) of ser- vice, the projector cannot turn on and the message is not displayed. If this happens, press the Help button on the remote control for a minimum of 10 seconds while in standby mode. When the lamp time clock is reset to zero, the STATUS indicator goes out.
Interlock
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