Sony TRINITRON KV-28WF3A, Руководство по обслуживанию

Страница: 21 / 73

22
KV-28WF3/32WF3
B G R
B
G
R B
G
R
H M C c o r r e c t i o n ( A ) H M C c o r r e c t i o n ( B )
A < B
A = B
R G B
R G B
A > B
A = B
R G B
R G B
C < D
C = D C > D C = D
R
G
B
C
D
C
D
R
G
B
R
G
B
R
G
B
V M C c o r r e c t i o n ( A ) V M C c o r r e c t i o n ( B )
Y-splitting axis correction magnet
V STAT convergence magnet
BMC (Hexaploe) magnet
Purity magnet
a
b
c
d
Permalloy Assy
X-4387-214-1
Convergence adjustment with permalloy
c). By rotating the V.STAT magnet clockwise, the red, green and
blue dots move in the direction indicated below.
d). By opening or closing the V.STAT magnet, the red, green and
blue dots move in the direction indicated below.
Note : If the blue dot does not coincide with the red and
green points correct the points by using the BMC
[Hexapole] magnet.
e). Correction for HMC [horizontal mis-convergence] and
VMC [vertical mis-convergence] by using the BMC
[Hexapole] magnet.
5. HMC correction by BMC [Hexapole] magnet and movement
of the electron beam.
a). VMC correction by BMC [Hexapole] magnet and movement
of the electron beam.
Layout of each control
Fig 3-5
Note : If you are unable to adjust the corner convergence
properly, this can be corrected with the use of
permalloys.
a-d: screen-corner
convergence defect
a b
c d