Picture is blurred. Adjust the focus. The projection distance is too long or too short to allow for proper focus. Picture appears but no sound is heard. Cables improperly connected to rear panel of the projector.
Volume is set to minimum.
An unsual sound is occasionally heard from the cabinet. If the picture is normal, the sound is due to cabinet shrinkage caused by temperature changes. This will not affect operation or performance. Maintenance indicator lights up. Refer to chart below.