HP L1955 HP L1755 17" and L1955 19" Flat Panel Monitors User Guide - Page 36

Operating the Monitor Adjusting Screen Quality Allow the monitor to warm up for 20 minutes before performing the following procedures. The Auto-adjustment feature automatically fine-tunes the image quality each time a new video mode is utilized. If additional improvement is desired, press the Auto adjust button on the front bezel. For more precise adjustments, use the adjustment pattern provided on the CD-ROM, and adjust the clock and phase settings (accessed from the OSD menu) as described in the following section. Optimizing Analog Video This monitor contains advanced circuitry that allows the flat panel screen to function like a standard monitor. Two controls in the on-screen display can be adjusted to improve image performance: Clock and Clock Phase. Use these controls only when the auto-adjust function does not provide a satisfactory image. ✎ The Clock must first be set correctly since the Clock Phase settings are dependent on the main Clock setting. ■ Clock-Increase/decrease the value to minimize any vertical bars or stripes visible on the screen background. ■ Clock Phase-Increase/decrease the value to minimize video distortion or video jitter. ✎ When using the controls, you will obtain the best results by using the adjustment pattern application provided on the CD-ROM. 4-10 User Guide