TOVIS P/N
MTG-1971XT
DATE
2002.03.11
REV NO.
0
TOVIS
Color Monitor Service Manual
PAGE
20/30
⑨
Obtain a white raster, referring to "CRT GRAY SCALE ADJUSTMENT
⑩
Proceed with convergence adjustment.
2) Convergence adjustment.
①
.Receive crosshatch pattern with a color bar signal generator.
②
.Adjust the BRIGHTNESS and CONTRAST Controls for well defined
pattern.
③
.Adjust two tabs of the 4-Pole Magnets to change the angle between
them (See figure 1) and superimpose red and blue vertical lines in the
center area of the picture screen.
④
.Turn both tabs at the same time keeping their angles constant to
superimpose red and blue horizontal lines at the center of the
screen.(See figure 2.)
⑤
.Adjust two tabs of 6-Pole Magnets to superimpose red/blue line with
green one. Adjusting the angle affects the vertical lines and rotating
both magnets affects the horizontal lines
⑥
.Repeat adjustment 3,4,5 Keeping in mind red, green and blue
movement, because 4-Pole Magnets and 6-Pole Magnets interact and
make dot movement complex.
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