ViewSonic GS815 User Manual page 10

Main Menu Controls
The menu items shown below can be adjusted by using the up
buttons.
H. CONVERGENCE (Horizontal Convergence) adjusts
vertical color alignment. Use this control when red or blue
borders are present around the vertical segments of black
letters on a white background.
V. CONVERGENCE (Vertical Convergence) adjusts
horizontal color alignment. Use this control when red or
blue borders are present around the horizontal segments of
black letters on a white background.
V. LINEARITY- CEN (Vertical Linearity Center) adjusts
the vertical distortion at the center of the screen image.
Note: V. Linearity is an advanced control to used for setup
and calibration only.
V. LINEARITY- SYM (Vertical Linearity Symmetry)
minimizes the distortion (squeezing or stretching) of
geometric shapes between the top and bottom of the screen
image).
Note: V. Linearity is an advanced control to used for setup
and calibration only.
HOOKING - TOP adjusts the top corners of the screen
image.
HOOKING - BOTTOM adjusts the bottom corners of the
screen image.
L
and down
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