NEC NP-PA550W User Manual page 172

To replace the lamp:
1. Remove the lamp cover.
(1)Loosen the lamp cover screw
• The lamp cover screw is not removable.
(2)Pull the bottom of the lamp cover towards you and remove it.
2. Remove the lamp housing.
(1)Loosen the two screws securing the lamp housing until the phillips screwdriver goes into a freewheeling condi-
tion.
• The two screws are not removable.
• There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this
interlock.
(2)Remove the lamp housing by holding it.
Interlock
Make sure that the lamp housing is cool
enough to before removing it.
Guide hole
160
7. Maintenance
CAUTION: