Convergence - Sony Trinitron KV-28FC60 Service Manual

Fig.3-4
Purity control corrects
this area
Deflection yoke positioning
corrects these areas
Disk Magnets
Purity control magnets

3-2. Convergence

(1) Screen centre convergence [Static convergence]
1. Input a dot pattern signal from the pattern generator.
2. Normalize the picture setting.
3. [Moving horizontally], adjust the H.STAT control so that the
horizontal red, green and blue dots coincide at the centre of the
screen.
4. [Moving horizontally], adjust the V.STAT magnet so that the
vertical red, green and blue dots coincide at the centre of the
screen.
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GREEN
RED
BLUE
Disk magnets or
rotatable disk
magnets correct
these areas (a-d)
a b
d
c
Center dot
H.STAT
convergence
control
ž
If the horizontal dots are unable to coincide with the variable
range of the H.STAT convergence, adjust together with the
V.STAT convergence whilst tracking.
[Adjust the convergence by tilting the V.STAT convergence or by
opening and closing the V.STAT convergence.]
( )
Open
4. Movement of the red, green and blue dots by tilting the V.STAT
magnet and by opening or closing the V.STAT magnet.
a). By opening or closing the V.STAT magnet, the red green and blue
dots move in the direction indicated below.
b). By rotating the V.STAT
magnet counter clockwise,
the red, green and blue
dots move as indicated.
21
V.STAT
Vertical Static Magnet
RV5375 (H STAT)
H STAT Convergence
(on mount side)
( )
Close
B B
G G
R R
B G R