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Keystone Correction and Vertical Size Adjustment
Correcting Trapezoidal
Distortion and Adjust-
ing the Vertical Size of
the Picture
This function allows for Keystone (On-screen
Trapezoidal Distortion) Correction and the
adjustment of the vertical size of the picture.
Note
• When the image is projected either from
top or from bottom toward the screen at
an angle, the image becomes distorted
trapezoidally.
The function for correcting trapezoidal dis-
tortion is called Keystone Correction.
• The Keystone Correction can be adjusted
up to angle of approximately ±30 degrees.
• There are some input signal in which
“KEYSTONE” does not work.
1 Press .
• Pressing switches the settings in
the manner shown in the diagram at
right each time it is pressed.
2 Press ', ", \ and | to adjust
the Keystone correction.
• If you want to make more detailed cor-
rections, press
to display the test
pattern, and then press
""
""
",
''
''
',
\\
\\
\ and
||
||
| to make the adjustments.
Note
•
Since the trapezoidal distortion of the im-
age can be corrected up to an angle of
approximately ±30 degrees, the actual
screen can be diagonally set up to that
angle as well.
•
Press to cancel Keystone Correction.
• Straight lines or the edges of images
may appear jagged while adjusting
the image.
KEYSTONE button
UNDO button
ENTER button
Normal screen
Keystone Correc-
tion screen
Compresses
upper side.
Compresses
lower side.
Test pattern
', ", \, |
buttons
Vertical size
adjustment screen
* “V-SIZE” is not dis-
played when the value
of “KEYSTONE” is “0”.
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