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Chapter 5 Maintenance — Maintenance/replacement
ENGLISH - 161
How to replace the lamp unit
Attention
f When the projector is mounted on the ceiling, do not conduct work while your face is near the lamp unit.
f Do not remove or loosen the screws other than specied ones when replacing the lamp unit.
f Use same type of lamp unit for both lamps.
f When replacing the lamp unit, loosen the lamp unit cover xing screw while putting your hand on.
(i)
(ii)
Fig. 1
Fig. 2
Grooves for the guide to attach the lamp unit
Guide to attach the
lamp unit
Grooves for the guide to attach the lamp unit
Fig. 3
Lamp unit cover
Lamp unit cover fixing screw
Lamp unit 2
Handles
Lamp unit 1
Lamp unit fixing screws
Fan power connector
1) Set the <MAIN POWER> switch to <OFF> and disconnect the power plug from the power outlet.
f Wait at least one hour and check if the lamp unit has cooled down.
2) Remove the lamp unit cover. (Fig. 1)
i) Use a Phillips screwdriver to turn the lamp unit cover fixing screw (x1) counterclockwise until it turns freely, and open the lamp unit cover
slowly in the direction of the arrow.
f Opening the lamp unit cover quickly may result in damage to the cover.
f If you loosen the lamp unit cover xing screw with the projector installed upward in the vertical direction, the lamp unit cover may open
on its weight and the lamp unit may be dropped off.
ii) Hold the lamp unit cover securely and slide it in the direction of the arrow, and then pull it out backward to remove.
f Fan and other components are attached to the lamp unit cover; handle the removed lamp unit cover with care.
3) Remove the lamp unit. (Fig. 2)
f Use a Phillips screwdriver to turn the lamp unit xing screws (x2) counterclockwise until they turn freely, and then remove the lamp
unit.
f Hold the handles of the lamp unit and remove it in the horizontal direction.
f Do not remove the screws other than the lamp unit xing screws.
4) Push in the new lamp unit while paying attention to the insertion position. (Fig. 3)
f Push the guides to attach the lamp unit slowly into the projector body along the grooves for guide to attach the lamp unit.
f If the lamp unit is not installed properly, remove it and then push it in slowly. Pushing it in quickly or forcibly may break the connector.