Hitachi 50EX13KX Projection Television User Manual


 
AUDIO - 35 -
CONVERGENCE ADJUST
Your Projection TV has three color projection tubes: one for red, one for green, one for blue.
When mixed together 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 aligned 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. Properly converged, the lines appear white, which is actually a
combination of the outputs of the three color tubes. The output of the green tube is stationary.
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.
Press the CURSOR , to move the color displayed up or down.
Press the CURSOR , to move the color displayed left or right.
Press ENTER to change the color.
Press MENU to exit.
AUDIO
Select AUDIO to adjust the TV to your preference, to improve the sound
quality, and to select special sound effects.