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Vicinity Of Screen; Horizontal And Vertical Dynamic Convergence Adjustment In The Vicinity Of Screen - Sony TRINITRON PVM-8042Q Service Manual

S mic chassis color video monitor.
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2 VMC (Vertical Misconvergence) correction and
motion of the electron beam with BMC (6-pole)
magnet:
VMC correction (A)
C < D
C = D
R
R
C
C
G
G
D
D
B
B
V.STAT magnet
Purity magnet
BMC (6-pole) magnet
Fig. 3-11
R
G B
B
G R
3-4
VMC correction (B)
C > D
C = D
R
R
C
C
G
G
D
D
B
B
B
G
R
R
B
G
G
B
R
R
G B
DY spacer
DY spacer
R
G
B
B
G
R
B
G R
Fig. 3-12
3-3-2. Horizontal and Vertical Dynamic
Convergence Adjustment in the

Vicinity of Screen

1. When there is misconvergence at the sides of the
screen, adjust the inclination of deflection yoke in
accordance with the following steps.
2. Insert the three DY spacers between the deflection yoke
and picture tube's funnel as shown in Fig. 3-12.
3. Adjust the convergence around the four corners with a
permalloy.
b
a-d : misconvergence
on four corners
c
a
d
Fig. 3-13
DY spacer
R
G
B
a
d
Convergence adjustment
b
with permalloy assembly
c
B
G R
R
G B
MIC
S
Chassis

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