Eiki LC-XBS500 Owner's Manual page 48

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Curved correction
Adjust when the linearity is not uniform or the vertical and horizontal lines are distorted.
Press▲▼◄►to adjust the item.
Items Operation
Press the►button
Press the◄button
Barrel
correction X/Y
Gain
Press the▲button
Press the▼button
Press the►button
Barrel
correction X
Offset
Press the◄button
Press the▲button
Barrel
Correction Y
Offset
Press the▼button
 Note:
● Either "H/V Keystone" , "Corner correction" or "Curved correction" setting value is valid. When
the "H/V Keystone" , "Corner correction" or "Curved correction" adjustment is finished, the
adjusted value will be reset when you adjust the other one.
● The "Curved Correction X Offset" and the "Curved Correction Y Offset" can not be adjusted
independently. After adjusting the "Curved Correction X/Y Gain" at the beginning, please adjust
the "Curved Correction X Offset" and "Curved Correction Y Offset".
● Press the KEYSTONE button on the remote control when the keystone screen is displaying (it
includes: H/V Keystone, Corner correction, Curved correction and Reset value), press 
button switch to the other adjustment screen.
● Correcting up to ±15° for the tilt in the vertical direction and ±15° for the tilt in the horizontal
direction are available for adjustments with "Keystone". However, the image quality will degrade
and it will get harder to focus with more correction. Install the projector so that the correction will
be as small as possible.
● Screen size will also change when "H/V Keystone" is used to perform various adjustments.
● Aspect ratio of the image size may shift depending on the correction.
Reset value
Return the corrected values to the factory default values.
Press▲▼to select "Reset value", then press the OK button, the state of the keystone correction is
released.
48
Adjustment
Adjust the right of
the width
Adjust the left of
the width
Adjust the top of
the width
Adjust the bottom
of the width
Adjust the right of
the distortion
Adjust the left of
the distortion
Adjust the top of
the distortion
Adjust the bottom
of the distortion
Adjustment range
-40 ~ +40
-40 ~ +40
0 ~ +1365
0 ~ +799