RCA P46728 - Manual (Page 17)

Your projection TV has three color
projection tubes-one for red, one for
green, and one for blue. When mixed
together in the proper proportion, the
output of these three color tubes can
produce many colors. 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 setting the
“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
colored rings or halos around objects
in the picture, you may want to
converge (align) the colors.
To simplify convergence, an on­
screen menu is provided that ahows
you to display a test pattern of four
lines on the screen. Properly
converged, the lines appear
white-which is actually a
combination of the outputs of the
three color tubes. The position of the
green lines is stationary. The
positions of the red and blue lines are
adjustable. When properly adjusted,
the red and blue lines should lie
directly over the green lines to
produce single white lines.
Converging (Aligning) the Colors
-(with remote only)-------------------------------------
1. Turn on the TV and select a channel
that is active in your area. Allow the
TV to operate at least ten minutes
before converging.
2. Repeatedly press the
VIDEO
button
until the
CONVERGENCE
function is
selected.
i Convergence
3. Then press the + button to display the
pattern.
! i i
USE VOL
TV TO EXIT
4. When properly converged, all three
colors in the pattern (red, blue, and
green) should align to form white
lines. If you see any red or blue lines
in the pattern, you can move them to
align with the greeii lines by pressing
the
VOL
up or down button.
5. Press the + button to select the arrow
color and direction, then press the
VOL
up or down button to move the
lines.
Press + to
select arrow
color and
direction.
Pressing ■
VOL up or
down when
these blue
arrows
appear,
moves the
blue lines
left or right
^ia
USE VOL
TV TO EXIT
Pressing
VOL up or
down when
these blue
arrows
appear,
moves the
blue lines up
or down.
Pressing
VOL
up or
down when
these red
arrows
appear,
moves the
red lines left
or right
Pressing
VOL up or
down when
these red
arrows
appear,
moves the
red lines up
or down.
a
USE VOL
TV TO EXIT
USE VOL
TV TO EXIT
USE VOL
TV TO EXIT
Note: You can also press the - button to
return to a previous screen. Pressing-
displays the arrows in reverse order than
shown above.
6. When finished, press the TV button
to remove the pattern from the
screen.
15