Sony FD Trinitron KV-28FX65B Service Manual page 23

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4. 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.
H MC c orr ec ti o n (A )
A < B
A = 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
C
C
G
D
D
B
HAMP Adjustment
Adjust the HAMP using HAMPL and HAMPR registers in the
Dynamic Convergence section of the service menu.
HTIL Adjustment
THL Correction assy
H MC co rrec t i on(B )
R G B A > B
R G B A = B
V M C c o r r e c t i o n ( B )
C > D C = D
R
R R
G G
G
B B B
10/16/2012
HTIL correction can be performed by adding a THL correction
assembly to the Deflection yoke.
R G B
YCH Adjustment
R G B
Deflection Yoke
TLV Adjustment
Deflection Yoke
H-TRAP Adjustment
HTRAP VR
Deflection Yoke
The H-TRAP should not be adjusted unless absolutely necessary as it
affects the TLV settings.
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+ YCH VR
TLV VR
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