Optoma TX1080 User's Manual - Page 47

English Appendices Image is out of focus  Make sure the Lens cap is removed.  Adjust the Focus Ring on the projector lens.  Make sure the projection screen is between the required dis- tance 4.9 to 41.0 feet (1.5 to 12.5 meters) from the projector. See page 17. T he image is stretched when displaying 16:9 DVD title  When you play anamorphic DVD or 16:9 DVD, the projector will show the best image in 16: 9 format on projector side.  If you play the LBX format DVD title, please change the format as LBX in projector OSD.  If you play 4:3 format DVD title, please change the format as 4:3 in projector OSD.  If the image is still stretched, you will also need to adjust the aspect ratio by referring to the following:  Please setup the display format as 16:9 (wide) aspect ratio type on your DVD player. Image is too small or too large  Adjust the zoom lever on the top of the projector.  Move the projector closer to or further from the screen.  Press [Menu] on the projector panel, go to "Display-->Format". Try the different settings. Image has slanted sides:  If possible, reposition the projector so that it is centered on the screen and below the bottom of the screen.  Use "Display-->Keystone" from the OSD to make an adjust- ment. Image is reversed  Select "Setup-->Projection" from the OSD and adjust the projec- tion direction. Intermission Problems The projector stops responding to all controls 47