HP LE2001w 20-inch Widescreen LCD Monitor - Manual (Page 31)

Optimizing Image Performance
Two controls in the on-screen display can be adjusted to improve image performance: Clock and Clock
Phase.
NOTE: The Clock and Clock Phase controls are adjustable only when using an analog input. These
controls are not adjustable for digital inputs.
The Clock must first be set correctly since the Clock Phase settings are dependent on the main Clock
setting. Use these controls only when the auto-adjustment function does not provide a satisfactory
image.
● Clock—Increases/decreases the value to minimize any vertical bars or stripes visible on the
screen background.
● Clock Phase—Increases/decreases the value to minimize video flickering or blurring.
NOTE: When using the controls, you will obtain the best results by using the auto-adjustment pattern
software utility provided on the CD.
When adjusting the Clock and Clock Phase values, if the monitor images become distorted, continue
adjusting the values until the distortion disappears. To restore the factory settings, select Yes from the
Factory Reset menu in the on-screen display.
To eliminate vertical bars (Clock):
1. Press the Menu button on the monitor's front panel to open the OSD Menu, and then select
Image Control > Clock.
2. Press the + (Plus) or – (Minus) buttons on the monitor's front panel to eliminate vertical bars. Press
the buttons slowly so that you do not miss the optimum adjustment point.
Figure 4-1 Clock Adjustment
3. After adjusting the Clock, if blurring, flickering, or bars appear on the screen, proceed to adjust
the Clock Phase.
To remove flickering or blurring (Clock Phase):
1. Press the Menu button on the monitor's front panel to open the OSD Menu, and then select
Image Control > Clock Phase.
2. Press the + (Plus) or – (Minus) buttons on the monitor's front panel to eliminate flickering or
blurring. Flicking or blurring may not be eliminated depending on your computer or graphics
controller card installed.
Figure 4-2 Clock Phase Adjustment
ENWW Adjusting the Monitor Settings 23