Eiki EK-355U Owner's Manual page 48

Corner correction
Adjust when the four corners of the projected image are distorted.
Press▲▼◄►to adjust the item.
Upper left
Note:

● The white arrows indicate that there is no correction.
● A red arrow indicates the direction of correction.
● An arrow disappears at the maximum correction.
Reset value
Reset the corrected values to the factory default values.
Press▲▼to select "Reset value", and then press the OK button, the state of the keystone
correction is released.
Note:

● Either "H/V Keystone" , "Corner correction" setting value is valid. When the "H/V Keystone"
or "Corner correction" adjustment is finished, the adjusted value will be reset when you
adjust the other one.
● Press the KEYSTONE button on the remote control when the keystone screen is displaying (it
includes: H/V Keystone, Corner correction and Reset value), press  button switch to the
other adjustment screen.
● Keep pressing ▲▼◄ ►button for the continuous adjustment and this operation is faster.
● Correcting up to ±30° 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.
48
OSD setting-Expand
Corner correction
Upper right Lower left Lower right