[. . . ] [. . . ] Frequency , 1'8675< , 1'8675< , 1'8675< 9(6$ 9(6$ 9(6$ [ [ [ [ [ [ +] +] +] +] +] +] . +] . +] . +] . +] . +] . +] Besides above factory preset display modes, this monitor can display the horizontal frequency from 31KHz to 54KHz. And the manual alignment will be needed in some cases out of preset modes. 4 User's Guide [. . . ] [. . . ]