Panasonic PT-LB90U User Manual

Page of 68
Care and Replacement
Maintenance
E
NGLISH - 49
 
J
Lamp replacement procedure
When the projector is mounted in the ceiling, do not work directly under the projector or put your face close 
 
z
to the projector.
Be sure to install the lamp unit and attach the lamp unit cover securely. If they are not installed securely, it 
 
z
may cause the protection circuit to operate so that the power cannot be turned on.
Disconnect the power plug from the wall outlet according to “Switching off the 
1 ) 
page 22), wait for at least 1 hour, and check if the lamp unit bottom is 
cooled.
Use a Phillips-head screwdriver to loosen the 2 lamp unit cover fixing screws on the 
2 ) 
back of the projector until the screws turn loose, and remove the lamp unit cover.
Lamp unit cover 
fixing screws
Lamp unit cover
Use a Phillips-head screwdriver to loosen the 3 lamp unit fixing screws. Pull the 
3 ) 
used lamp unit gently from the projector.
Handles
Lamp unit  
fixing screws
Press in the lamp unit until it clicks and make sure the unit is installed securely. 
4 ) 
Tighten the 3 lamp unit fixing screws securely with a Phillips-head screwdriver.
When inserting, in particular press the portion of   securely. 
Lamp unit cover 
fixing screws