Setting up your projector

Setting up the screen

Install the screen perpendicularly to the projector. If the screen can not be installed in such a way, adjust the projection angle of the projector. (See below.)

Install the screen and projector so that the projector’s lens is placed at the same height and horizontal posi- tion of the screen center.

Do not install the screen where it is exposed to direct sunlight or lighting. Light directly reflecting on the screen makes the projected images whitish and hard to view.

Basic setup

Determine the distance from the screen to the projector according to the size of the images to be projected. (See

Page 11.)

W

A

B

 

A=B

Do not place this projector on a carpet or blanket because the exhaust vent and the intake vent on the bottom surface are blocked and the inside of the projector is heated, causing a breakdown or fire.

Depending on the installation conditions, warm air that is emitted from the exhaust vents may flow into the intake vent, causing the projector to display “Over Temperature” and then stop projecting images. In such a case, attach the cushion that comes with the projector to the bottom surface of the projector as shown below.

Adjusting the projection angle

This projector is provided with three feet for adjust- ing the projection angle on the bottom surface. Adjust the projection angle depending on the position of the projector.

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.

Screen Adjustment feet (rear)

1.Tilt up the project to the appropriate angle.

2.Press the foot adjustment buttons next to the adjustment feet (rear), and the adjustment feet will come out.

3.Release the buttons to lock the adjustment feet (rear) to that position.

4.Rotate the adjustment feet (rear) for fine adjustment.

After using the projector:

5.Put the adjustment feet (rear) back into the projector by pressing the foot adjustment buttons.

If necessary, rotate the adjustment feet (front) for fine adjustment.

When projected images are distorted to a trapezoid:

When the screen and the projector are not placed perpendicularly to each other, projected images become trapezoidal. If you cannot make the projec- tor and the screen perpendicular to each other by mechanical adjustments, adjust keystone. (See Page 16.)

When the keystone adjustment is applied, the correct aspect ratio may not be obtained.

When the keystone adjustment is applied, the resolution lowers. In addition, vertical stripes appear and straight lines bend in images with complicated patterns. To prevent such symptoms, keep the screen and the projector perpendicular to each other as much as possible.

Though the projected image may be distorted momentarily when you change the setting value of the keystone adjustment, such symptom is not a malfunction.

Though the projected image may be distorted depending on the setting value of the keystone adjustment and the type of the input signal, such symptom is not a malfunction. In such a case, adjust the setting value within the range where the projected image is not distorted.

The setting value displayed at the time of the keystone adjustment may vary depending on the type of the input signal.

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Mitsubishi Electronics HC900 Setting up your projector, Setting up the screen, Basic setup, Adjusting the projection angle