ViewSonic P225f User Manual - Page 12

Control Explanation (Continued) V. Linear (Vertical Linearity Center) adjusts the vertical distortion at the center of the screen image. NOTE: Vertical Linearity Center is an advanced control and should be used for setup and calibration only. V. Linear Sym (Vertical Linearity Symmetry) minimizes the distortion (squeezing or stretching) images between the top and bottom of the screen image. NOTE: Vertical Linearity Symmetry is an advanced control and should be used for setup and calibration only. Top Hooking straightens the top corners of the screen image. Bottom Hooking straightens the bottom corners of the screen image. Purity adjusts the uneven color of the overall image. For example, if one area of a color appears darker than another area, first use the degauss feature. If color is still uneven, use the purity control. Top Left (Purity) adjusts uneven color at top left corner of screen. Top Right (Purity) adjusts uneven color at top right corner of screen. Bottom Left (Purity) adjusts uneven color at bottom left corner of screen. Bottom Right (Purity) adjusts uneven color at bottom right corner of screen. Data Recall returns adjustments to the original factory settings if the product is operating in a Preset Timing Modes (see the table at the bottom of page 11). Exception: This control does not affect changes made with the User Color control. Input Select allows you to toggle between two video-signal sources (D-Sub and BNC). ViewSonic P225f 11