(No.YA164)1-29
PURITY ADJUSTMENT
(1) Input a crosshatch signal.
(2) Using 4-pole convergence magnets, overlap the red and
blue lines in the center of the screen (Fig.1) and turn them
to magenta (red/blue).
(3) Using 6-pole convergence magnets, overlap the magenta
(red/blue) and green lines in the center of the screen and
turn them to white.
(4) Repeat 2 and 3 above, and make best convergence.
After adjustment, fix the wedge at the original position.Fasten
the retainer screw of the deflection yoke.Fix the 6 magnets with
glue.
DYNAMIC (periphery) CONVERGENCE ADJUSTMENT
After adjusting purity & static convergence.
(1) Move the deflection yoke up and down to adjust the pin
cushion distortion in the screen top and bottom. (See Fig. 2)
(2) Move the deflection yoke left to right to overlap the lines in
the periphery, and match the Yv(VR1).
(As shown in Fig. 4)
(3) Using the VR1 on the deflection yoke, match the YH
(CROSS). (See Fig. 3 and 6)
(4) Using the VR2 on the deflection yoke, match the YH (BOW).
(See Fig. 3 and 6)
(5) Repeat the steps 1 and 4 and obtain an optimum
convergence.
(6) Differential(XV) coil ADJUSTMENT.
In case where the horizontal lines of red and blue around the
center of both sides of the picture as shown in Fig. 5, adjust
the XV difference by using the differential coil (XV coil) on
the top of the deflection yoke (Fig. 6) so as to minimize the
XV difference.
Fig.6
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
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( FRONT VIEW )
( FRONT VIEW )
TOP
BOTTOM
( FRONT VIEW )
YH
YH
RED
RED
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BLUE
GREEN
GREEN
RED
BLUE
GREEN
RED
BLUE GREEN
( FRONT VIEW )
RED
BLUE
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RED
BLUE
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RED
BLUE
GREEN
RED
BLUE
GREEN
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YV
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