Haier L24C1180 Service Manual page 12

1. H-Position: Adjust the horizontal position of the picture. (0-40)
2. V-Position: Adjust the vertical position of the picture. (0-16)
3. Clock: Adjust picture clock to reduce Vertical-Line noise. (0-16)
4. Phase: Adjust picture phase to reduce Horizontal-Line noise. (0-31)
5. Auto Adjust: Adjust the settings automatically.
6. Preset: Restore the default VGA setting values
12