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Adjustment items
Adjusting methods
Focus adjustment
(Conditions)
- User adjustment : Dynamic mode, Cinema mode
- To be performed after centering magnet adjustment.
- Signal :
Lens: R .... Retma Pattern (PAL)
G .... Crosshatch (PAL)
B .... Crosshatch (PAL)
Electrical focus :
R .... Retma Pattern (PAL)
G .... Crosshatch (PAL)
B .... RetmaPattern (PAL)
(Adjustment)
1. Common item
1) Make coarse adjustments in advance on the lens focus and electrical focus of
each R, G, and B tube.
2. G adjustment
1) Set to the G monochrome by lens cap.
2) Receive the image of crosshatch.
3) Adjust the G electric focus.
Adjust the G electrical focus by the focus volume of focus block (Z410) so that
the screen center will come to optimum focus. (Although the G electrical focus
is to be adjusted to allow the scanning lines in the center of the screen to be
seen most clealy, if G alignment and astigmatism are inferior with the appear-
ance of vertical and horizontal flares in the center of and around the screen
and if the lines become thicker, adjust to the best point observing the entire
screen.)
4) Adjust the G lens focus.
Watch the horizon of the left and right both ends of the screen make optimum
adjustments on the G lens focus, and check that the focus balance on the
right and left is satisfactory.
5) Repeat 3, 4, and attempt to further improve the focus quality.
GENERAL ADJUSTMENTS
