Hitachi 60EX38B Operating Manual page 35

VIDEO
I CONVERGENCE ADJUST I
Your Projection TV has three color projection tubes: one
for red, one for green, one for blue. When mixedtogether
in the proper proportion, the output of these three color
tubes can produce any color. To produce these colors,
however, the beams must be precisely aligned over each
other so that the colors can be mixed. The process of
aligning these picture beams is called "convergence".
Over a period of time, the picture tubes can drift out of
alignment due to normal bumps and vibrations or moving
the TV. If you move your TV, or if, after a time, you notice
color rings or halos around objects in the picture, you may
want to converge (align) the colors.
To simplify convergence, the following feature allows you
to display a test pattern of horizontal and vertical lines on
the screen. Propedy converged, the lines appear white,
which is actually a combination of the outputs ofthe three
color tubes. The output of the green tube isstationary. The
outputs of the red and blue tubes can be adjusted. When
properly aligned, the outputs of all three tubes should be
directly over each other to produce the white lines.
NTER MENU
(SET) (EXIT)
BLUE
RED +
_4 P_
MENU
(EXIT)
CURSOR
+
(R41 I_a;
BLUE
MENU
(EXIT)
II
II
ENTER MENU
(_4 II, e) (Exrr)
CURSOR
I
ENlIBR
BLUE
MENU
Pressthe CURSOR • ,T to movethe colordisplayedup or down.
Pressthe CURSOR •, • to movethe colordisplayedleftor right.
PressENTER to change the color.
PressMENU to exit.
35