141TroubleshootingAppendix■The projected image is blur.■You cannot project an image appropriately.■The projector is forced to be turned off.Cause CountermeasureThe image is out of focus. Adjust the focus. (P59)The distance to the screen is tooshort.Check whether the distance to the screen is appropriate. Ifthe distance is shorter than approximately 1.2m (3.9'), theprojector cannot focus on the screen. (P35, P151)The projector is not placed straightin front of the screen.Check whether the projector is placed obliquely to thescreen. A slight error in the projection angle can be cor-rected through the keystone adjustment function. (P60)The projector has been moved to aplace where the temperature var-ies a lot.When the projector is moved from a low-temperature placeto a high-temperature place, condensation may form on thelens. The condensation will evaporate a while later and theprojector will be able to project a normal image.The lens is stained. Clean up the lens. (P143)The tracking is bad. Adjust the tracking with the AUTO PC or Tracking function.(P57, P82)Cause CountermeasureThe projected image is inverted inthe vertical or horizontal direction.The ceiling mounted/rear projection setting is incorrect.Check the [Image flip H/V] setting in the [Display settings]menu. (P87)Using a VGA cable in which somepins are not connected.• Use a supplied VGA cable (for SX800).• If you use a commercial VGA cable, make sure to use acable in which all pins are connected.Cause CountermeasureThe air intake or exhaust vent isblocked.Check whether the air intake or exhaust vent is blocked. If theair intake or exhaust vent is blocked, the temperature insidethe projector rises and the power is automatically turned offto protect the projector. (The WARNING lamp flashes once.)Wait until the internal temperature gets down, and then turnon the projector without blocking the intake and exhaustvents. (P24, P25, P49)The air filter is dirty. Check whether the bottom air filter is clogged with dust.If the air filter is clogged, clean or replace the air filter. (P144)The lamp has exploded (or it isdefective).Check whether the lamp has exploded.If the lamp has exploded, replace the lamp according to"Lamp Handling Precautions" on page 18. Check the lampby replacing it with a spare lamp if you have one. (P18,P145, P146)
