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Nec lt 25 Manual

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6. Maintenance
This section describes the simple maintenance procedures you should follow to clean the focus sensor, lens and
replace the lamp.
ᕡ Cleaning the Lens and Focus Sensor
Cleaning the lens
Use a blower or lens paper to clean the lens, and be careful not to scratch or mar the lens.
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Cleaning the focus sensor
Use a blower or lens paper to clean the focus sensor.
Keep finger prints off the focus sensor. Leaving finger prints in the focus sensor might cause poor focus or short auto
focus range.
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· Cleaning the Cabinet
1. Turn off the projector before cleaning.
2. Vacuum the ventilation inlet of the cabinet.
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