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Maintenance/replacement
104 - ENGLISH
Maintenance
Replacing the lamp unit
Attention
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Once a lamp unit has exceeded its lifespan of 3 000 hours (the lamp usage time (converted value)) the
projector can only be used for ten minutes after turning on the power. (
page 103)
Perform Steps 14) to 17) within ten minutes.
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When the projector is mounted on the ceiling, do not put your face near the lamp unit.
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Do not open the top cover except when replacing the lamp unit.
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Do not switch on the power while the top cover is opened.
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Replace the air lter and electrostatic lter whenever replacing the lamp unit.
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Securely attach the lamp unit and lamp unit cover.
1) Follow the procedures described in “Switching off the projector” (
page 38), press
the <OFF> side of the <MAIN POWER> switch to turn off the power, disconnect the
power plug from the power outlet, and wait at least one hour, and then check if the
lamp unit has cooled down.
2) Remove the video cable connected to the connecting terminal.
Attention
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If you open the top panel fully, it may come into contact with connectors such as the video cable which may
result in breakage of the video cable. Before opening the top panel, be sure to remove the connected video
cables, etc.
3) Hold the protrusions at the front corner of the top cover of the projector and push up
to open the top cover.
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When the projector is mounted on the ceiling, stand at the lens side of the projector when opening/closing
the top cover.
Protrusion
Top cover
Attention
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Be careful not to open the top panel too far. For what to do if the top panel comes off, see “When to replace the
lamp unit” (
page 103).