NEC GT6000 - Manual (Page 93)

9-2
This chapter describes the simple maintenance procedures you
should follow to replace the lamp and the filter, and to clean the
filter and the cabinet.
z Replacing the Lamp
The projector has two lamps. The lamp replacement procedure
applies to both lamps. After your lamp 1 and 2 has been operat-
ing for 2000 hours (Normal mode on the standard life lamp) 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 as soon as possible to maintain optimal projector
performance.
NOTE: Be sure to use the same lamp type for both lamp 1 and 2.
CAUTION
• DO NOT TOUCH THE LAMP immediately after it has been used. It will
be extremely hot. Turn the projector off, wait 90 seconds (2 minutes in
the optional extended life lamp GT60LPS), turn off the main power
switch, 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
the two lamp case screws. You could receive an electric shock.
• The projector will turn off and go into stand by mode after 2100 hours
(Normal mode on the standard life lamp) of service. If this happens, be
sure to replace the lamp. If you continue to use the lamp after 2000
hours (Normal mode on the standard life lamp) 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 hap-
pens, contact your NEC dealer for lamp replacement.
• When "Dual" is selected in "Lamp Select" of "Lamp Settings", replace
both lamp 1 and 2 at the same time so that the projector can keep the
color of projected image even.
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.
2. Loosen the two screws securing the lamp housing until the screwdriver
goes into a freewheeling condition. The two screws are not removable.
Remove the lamp housing by pulling out the handle.
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
(Standard life lamp: GT60LP or Extended life lamp: GT60LPS).
4. Secure it in place with the two screws.
Be sure to tighten the screws.
5. Reattach the lamp cover.
9. Maintenance
6. Tighten the lamp cover screw. Be sure to tighten the screw.
NOTE: Replacing a new lamp automatically clears the lamp usage hours.
NOTE: The lamp housing has an EEPROM chip memorizing its amount of usage
hours. You can check the amount usage hours in Information of the menu. (The
standard lamp and the optional lamp have an EEPROM chip in it so that when you
remove it, your lamp usage hours are saved in its own memory. The projector
reads the lamp usage hours from the EEPROM chip to display them in Information
of the menu.)
NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do
not attempt to circumvent this interlock.