Panasonic PT-SW280A Operating Instructions Manual page 105

Lamp replacement procedure
f When the projector is mounted in the ceiling, do not work directly under the projector or put your face close to the projector.
f Be sure to install the lamp unit and attach the lamp unit cover securely.
Disconnect the power plug from the wall outlet according to "Switching off the projector" (x page 39), wait
1)
for at least 1 hour and check the bottom if the lamp unit has cooled.
2)
Use a Phillips-head screwdriver to loosen the 1 lamp unit cover screw on the back of the projector until the
screw loosen, then to the rear slide slightly and remove the lamp unit cover.
Lamp unit cover screw
输入
3)
Use a Phillips-head screwdriver to loosen the 2 lamp unit screws. Pull the used lamp unit gently from the projector.
4)
Press in the unused lamp unit until it clicks and make sure the unit is installed securely. Tighten the 2 lamp
unit screws securely with a Phillipshead screwdriver.
During insertion, particularly press the  portion securely.
5)
Attach the lamp unit cover and tighten the 1 lamp unit cover screw securely with a Phillips-head screwdriver.
6)
Connect the power cord to a wall outlet.
7)
Press the POWER button to begin projection.
Note
f If INITIAL START UP in the PROJECTOR SETUP menu is set to ON, the projector starts projecting when the power cord is connected to a
wall outlet. ( x page 71)
Chapter 6 Maintenance — Care and Replacement (continued)
Lamp unit cover
Rear side
PT-SX320A
Lamp unit screws
PT-SX320A
Lamp unit screws
PT-SX320A
Lamp unit cover
Handles

Top side
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