IBM 9513AG1 User Guide - Page 22

On-screen display (OSD) controls The LCD monitor needs time to become thermally stable the first time you turn it on each day. Thus, to achieve more accurate adjustments for parameters, allow the LCD monitor to warm up (be On) for at least 15 minutes before making any screen adjustments. The settings adjustable with the user controls are viewed through the OnScreen Display (OSD). Press any of the OSD buttons to activate the OSD. Initial appearance of OSD BRIGHTNESS 89 OSD functions OSD Icon Description Brightness Adjusts brightness Sub-menu(s) Controls and Adjustments Contrast Adjusts contrast Image Lock The image lock function is used to adjust the level of noise in the video signal which causes horizontal lines or areas on the screen where the image appears to be unstable and jitters or shimmers. This can be done automatically or manually. Automatic NO - Does not make the adjustment YES - Automatic adjustment 16