Convergence - Sony FD Trinitron KV-28DS65U Service Manual

GREEN
Fig.3-4
Purity control corrects
this area.
Deflection yoke positioning
corrects these areas
Fig. 3-5

3-2. CONVERGENCE

(1) Screen centre convergence
[Static convergence]
1. Input a dot signal from the pattern generator.
Normalize the picture setting.
2. [Moving horizontally], adjust the H.STAT control so that the
horizontal red, green and blue dots coincide at the centre of
the screen.
3. [Moving vertically], adjust the V.STAT magnet so that the
vertical red, green and blue dots coincide at the centre of the
screen.
RED
BLUE
Disk magnets or
rotatable disk
magnets correct
these areas (a-d).
Centre dot
H.STAT
convergence
control
H.STAT convergence
• If the horizontal dots are unable to coincide with the variable
range of the H.STAT convergence, adjust together with the
V.STAT convergence while 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 as indicated below.
b). By rotating the V.STAT magnet counter clockwise, the red,
green and blue dots move as indicated below.
25
V.STAT
vertical static magnet
H.STAT VR on
mount side
RV5376
Screen (G2)
(Close)
B B
G G
R R
B G R