Preparation (continued)
Adjustment of the projection angle
For the best projection, project images on a flat screen installed at 90 degrees to the floor. If necessary, tilt the projector using the two adjustment feet on the bottom of the projector.
Using the adjustment feet (front)
1.Tilt up the projector to the appropriate angle.
2.Rotate the adjustment feet (front) for fine adjustment.
Important:
•Install the screen on a flat wall at 90 degrees to the floor.
•Slanting the projector more than ±10° (right and left) or ±15° (front and rear) may cause trouble or explosion of the lamp. You can tilt the projector up to 8 degrees using the adjustment feet only.
•Images may not be projected in a shape of a regular rectangle or with its aspect ratio 4:3, depending on the installation conditions of the projector and the screen.
When projected images are distorted to a trapezoid
When Auto Keystone in the Installation menu is set to On, this projector automatically corrects vertical keystone distortion. For fine adjustment, press the KEYSTONE button on the projector or the remote control to display Keystone, and adjust the image by pressing the , button (or VOLUME , button on the remote control).
In the following cases:
•You can correct the vertical keystones. However, their adjustment ranges are limited in such correction.
Important:
•When the keystone adjustment is carried out, the adjustment value is indicated. Note that this value doesn’t mean a projection angle.
•The allowable range of the adjustment value in the keystone adjustment varies depending on the installation condition, input signal and aspect settings in MENU.
•When the keystone adjustment takes effect, the resolution decreases. In addition, stripes may appear or straight lines may bend in images with complicated patterns. They are not due to product malfunctions.
•Noise may appear on the screen during the keystone adjustment because of the type of the video signal being projected and the setting values of the keystone adjustment. In such cases, set the keystone adjustment values in the range where the image is displayed without noise.
•When the keystone adjustment is carried out, the image may not be displayed correctly because of the type of input signal.
Press the button. | Press the button. |
•In the keystone adjustment, you can obtain an optimum result when the LENS SHIFT dial is at the factory default position. (See page 9.)
•The automatic keystone adjustment may not be carried out correctly because of the ambient temperature and the installation conditions of the projector and the screen. In such cases, correct the keystone manually.
•When the projector is projecting images where acceleration is present, such as in a vehicle and aircraft, the automatic keystone adjustment may not function correctly. In such a case, set Auto Keystone in the Installation menu to Off and correct the keystone manually.