NEC VT490, User Manual

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E-9
3. Remove the lamp housing.
(1)Loosen the two screws securing the lamp housing until the phillips screwdriver goes into a freewheeling
condition. The two screws are not removable.
(2)Remove the lamp housing by holding it.
NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock.
4. Install a new lamp housing.
(1)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 VT85LP (VT695/VT595/VT590/VT491) or VT80LP (VT59/VT49).
Order this from your NEC dealer.
(2)Secure it in place with the two screws.
Be sure to tighten the screws.
5. Reattach the lamp cover.
(1)Place the lamp cover, aligning it with the guiding line.
(2)Slide the lamp cover back until it snaps into place.
Interlock
6. Connect the supplied power cable, turn on the Main Power switch and turn on the projector.
7. Finally, select the menu
→
[Reset]
→
[Clear Lamp Hours] to reset the lamp usage hours.
NOTE: When the lamp exceeds 2100* hours (up to 3100* hours in Eco mode) of service, the projector cannot turn on and the
menu is not displayed.
If this happens, press the HELP button on the remote control for ten seconds to reset the lamp clock back to zero.
When the lamp time clock is reset to zero, the LAMP indicator goes out.
* VT59 and VT49: 3100 hours (up to 4100 hours in Eco mode).