4)Press the 
(-)or
(+)
5)Press the MENU button to confirm your selection and press MENU again to return to the MAIN CONTROLS window. CLOSE MAIN CONTROLS will be highlighted.
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ADJUST HORIZONTAL
ADJUST POSITION under ADJUST HORIZONTAL shifts the image on your screen either to the left or right. Use this feature if your image does not appear centered. ADJUST SIZE under ADJUST HORIZONTAL expands or controls the image on your screen, pushing it out toward the left and right sides or pulling it in toward the center.
1)Press the MENU button on the monitor. The MAIN CONTROLS window appears.
2)Press the 
(+)button until ADJUST HORIZONTAL is highlighted.
3)Press the MENU button. The ADJUST HORIZONTAL window appears. press MENU POSITION should be highlighted.