Horizontal Adjustment

Horizontal Adjusting:

1. For adjusting the horizontal angle, turn the horizontal adjusting screw until the center mark (red mark) and the center mating mark (black mark) on the horizontal adjusting gauge are aligned.
2. Check that the beam which strikes the screen matches the specified beam pattern.
If the pattern does not match, adjust by the following procedure.
a. Adjust the horizontal angle by turning the horizontal adjusting screw so that the beam pattern matches the specified pattern.
b. Turn the center mark adjusting screw to align the center mark (red mark) and the center mating mark (black mark) of the horizontal indicator.