Convergence - Sony Trinitron KV-25X3A Service Manual

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

3-2. CONVERGENCE

(1) Screen center 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
center of screen.
3. (Moving vertically), adjust the V.STAT magnet so that the
vertical red, green and blue points coincide at the center of
screen.
Blue
BLU
RED
Red
Disk magnets or
rotatable disk
magnets correct
these areas (a-d).
Center dot
H.STAT
convergence
control
RV3701
Screen (G2)
• 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 or 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.
1 By opening or closing the V.STAT magnet, the red, green
and blue points move as shown below
2By rotating the V. STAT magnet counterclockwise, the
red, green and blue dots move as shown below.
— 21 —
KV-25X3
V.STAT
Magnete statico verticale
C Board
RV3702 (H.STAT)
H.STAT convergence
(Close)
B B
G G
R R
B G R