Optoma Data Projector User Manual page 102

Appendices
102
English
Image is out of focus
Make sure the lens cap is removed.
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Adjust the Focus Ring on the projector lens.
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Make sure the projection screen is between the required distance.
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See page 16.
The image is stretched when displaying 16:9 DVD title
When you play anamorphic DVD or 16:9 DVD, the projector will
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show the best image when the projector display mode is set to
16:9 in the OSD.
If you play 4:3 format DVD titles, please change the format to 4:3
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in the projector OSD.
If the image is still stretched, adjust the aspect ratio.
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Set the display format of your DVD player to 16:9 (wide) aspect
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ratio.
Image is too small or too large
Move the projector closer to or further from the screen.
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Press on the control panel or Menu on the remote control. Go
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to "DISPLAY → Format" and try the different settings.
Image has slanted sides
If possible, reposition the projector so that it is horizontally
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centered on the screen and below the bottom of the screen.
Press "Keystone +/-" button on the remote control or press
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/
" " on the control panel, until the sides are vertical.
Image is reversed
Press on the control panel or Menu on the remote control. Go
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to "SETUP → Projection" from the OSD and adjust the
projection direction.
The projector stops responding to all controls
Check that "Keypad Lock" is not activated by trying to control the

projector with the remote control.