AOC 27G2Z 27" 240 Hz HDR Gaming Monitor (Black/Silver/Red) - Manual (Page 17)

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Image Setup (C27G2)
Color Setup Picture Boost OSD Setup Exit Extra Image Setup
Clock 50
Phase 50
H. Position 50
V. Position 50
Sharpness 50
Luminance Game Setting
Clock 0-100 Adjust picture Clock to reduce Vertical-Line noise.
Phase 0-100 Adjust Picture Phase to reduce Horizontal-Line noise
Sharpness 0-100 Adjust picture sharpness
H. Position 0-100 Adjust the horizontal position of the picture.
V. Position 0-100 Adjust the vertical position of the picture.