Preparation, En – 13, Preparation for projection – MITSUBISHI ELECTRIC HC3 User Manual

Page 13: Adjustment of the projection angle

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EN – 13

ENGLISH

Preparation

Important:
• Install the screen on a flat wall at 90 degrees to the

floor.

• Slanting the projector more than ±10˚ (horizontally) or

±30˚ (vertically) may cause trouble or explosion of the
lamp. You can tilt the projector up to 7 degrees using
the adjustment feet only.

• Images may not be projected in a shape of a regular

rectangle or with its aspect ratio, depending on the
installation conditions of the projector and the screen.

• To correct vertical and horizontal keystone distortion,

press the KEYSTONE button on the projector or the
remote control to display KEYSTONE, and adjust the
image by pressing the

%, $ , {, or } button (or

VOLUME + or - button on the remote control).
In the following cases:

Preparation for projection

1. Attach the provided power cord to the projector.
2. Plug the power cord in the wall outlet.
3. Remove the lens cap.

Warning:
• Do not look into the lens directly when the projector is

on.

• The lens cap is for protecting the lens. If you leave the

lens cap on the lens with the projector turned on, it
may be deformed because of heat build-up. Remove the
lens cap when you turn on the projector.

• The power cords for use in the U.S. and Europe are

provided with this projector. Use the appropriate cord
for your country.

• This projector uses the power plug of three-pin

grounding type. Do not remove the grounding pin from
the power plug. If the power plug doesn’t fit your wall
outlet, ask an electrician to change the wall outlet.

• The provided power cord for the U.S. is rated at 120 V.

Never connect this cord to any outlet or power supply
using other voltages or frequencies than rated. If you
want to use a power supply using other voltage than
rated, prepare an appropriate power cord separately.

• Use 100-240 V AC 50/60 Hz to prevent fire or electric

shock.

• Do not place any objects on the power cord or do not

place the projector near heat sources to prevent
damage to the power cord. If the power cord should be
damaged, contact your dealer for replacement because
it may cause fire or electric shock.

• Do not modify or alter the power cord. If the power

cord is modified or altered, it may cause fire or electric
shock.

Caution:
• Plug in the power cord firmly. When unplugging, hold

and pull the power plug, not the power cord.

• Do not plug in or out the power cord with your hand

wet. It may cause electric shock.

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.

1. Tilt up the project to the appropriate angle.
2. Press the foot adjustment buttons next to the

adjustment feet, and the adjustment feet will come
out.

3. Release the buttons to lock the adjustment feet to that

position.

4. Rotate the adjustment feet for fine adjustment.

After using the projector:
5. Put the adjustment feet back into the projector by

pressing the foot adjustment buttons.

Important:
• You can correct the vertical and horizontal keystones

at the same time. However, their adjustment ranges
are limited in such correction.

• 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 conditions.

• 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.

Screen

Adjustment feet

Press the

%

button.

Press the

$

button.

Press the

}

(or -) button.

Press the

{

(or +) button.

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