Sony FD Trinitron KV-28DS65U Service Manual page 26

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.
R
Note : If the blue dot does not coincide with the red and
green points correct the points by using the BMC
[Hexapole] magnet.
5. Correction for HMC [horizontal mis-convergence] and
VMC [vertical mis-convergence] by using the BMC
[Hexapole] magnet.
a). HMC correction by BMC [Hexapole] magnet and movement
of the electron beam.
HMC correction(A)
A < B R G B
A = B
R G B
b). VMC correction by BMC [Hexapole] magnet and movement
of the electron beam.
V M C c o r r e c t i o n ( A )
C < D C = D
R
R
C
C
G
G
D
D
B
B
B G R
B
G
G
B R
HMC correction(B)
A > B R
A = B
R G B
V M C c o r r e c t i o n ( B )
C > D C = D
R R
G
G
B
B
(2) Dynamic convergence
HTIL
1. HTIL correction can be performed by adjusting RV1502 on
the D1 board.
COR.BOW
2. COR.BOW correction can be performed by adjusting
RV1503 on the D1 board.
H-TILT
RV1502
G B
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CBH
D1
RV1503