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Nec np41 Manual

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3. Projectng an Image (Basc Operaton)
ZOOM
UsetheZOOMlevertoadjusttheimagesizeonthescreen.
NOTE: Rotating the ZOOM lever will cause the focus to be adjusted
automatically. For more detail, see "AUTO FOCUS" below.
• Moving the projector back and forth can change the image size
on the screen.
• Adjust the tilt foot if the image is distorted vertically.
AUTO FOCUS
Thefocussensorontheprojectordetectsthedistancetothescreenandautomaticallyadjuststhefocusofan
image.
• TheAUTOFOCUSfunctionwillworkwhenthefollowingtasksaredone:
- Turningonthepower
- Changingthezoomlever
- Repositioningtheprojector
- Changingtheprojectionangle
Effectve auto focus range for screen :3
Throwdistance Imagesize(inch)
Tele(Zoomatmin.) Wide(Zoomatmax.)
Minimumdistance 57.1"/1.5m
33" 40"
Maximumdistance 216.5"/5.5m
123" 149"
Whenthethrowdistanceisbeyond5.5m/216.5",itmeansthatthefocussensorwillnotworkcorrectlyand
thatyouneedtousetheFOCUSbuttontoadjustthefocusmanually.
NOTE: In some cases, the AUTO FOCUS may not work correctly or the AUTO FOCUS range can be made narrower, de-
pending on the environmental conditions.
The AUTO FOCUS function will not work under the following circumstances
• When using a transparent screen.
• When there are objects between the focus sensor of the projector and the screen.
• When moving the projector so slowly that the focus sensor cannot detect the distance to the screen.
• When moving the screen, not the projector, because the focus sensor cannot detect the distance to the screen
TIP: To turn off the AUTO FOCUS function, from the menu select [SETUP] → [OPTIONS(1)] → [AUTO FOCUS] and select [OFF].
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