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Maintenance
■ Replacing the lamp unit
Attention
• Turn off the UV lamp before opening the lamp cover.
• When the projector is mounted on the ceiling, do not put your face near the lamp unit.
• Attach the lamp unit securely.
• If the lamp unit is not attached properly, remove it and then attach it again. Forcing the lamp unit in may break
the connector.
• The glass surface may be hot. When replacing the lamp unit, be sure to hold it by the handle.
1) Check which lamp to replace with the lamp status displayed on the screen, or the lamp indicators
<LAMP 1 REPLACE> to <LAMP 4 REPLACE>.
2) Turn off the power and disconnect the power plug from the power outlet, and wait at least 60 minutes,
and then check if the lamp unit has cooled down.
3) Use a Phillips screwdriver to turn the lamp cover fixing screw on top of the projector body until they
turn freely, and then open the lamp cover.
• Open the cover until it is at 90° to the projector.
Lamp status
Lamp indicators <LAMP 1 REPLACE> to
<LAMP 4 REPLACE>
-18-
Lamp cover
Screw
LX1750 Service Manual
020-000643-01 Rev.1 (01-2014)
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