Sony FD TRINITRON KV-28FQ86E Service Manual page 20

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 M C c o r r e c t i o n ( 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
HAMP Adjustment
Adjust the HAMP using HAMPL and HAMPR registers in the
Dynamic Convergence section of the service menu.
HTIL Adjustment
THL Correction assy
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H M C c o r r e c t i o n ( B )
A > B R G B
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
HTIL correction can be performed by adding a THL correction
assembly to the Deflection yoke.
YCH Adjustment
+
+ +
YCH VR
Deflection Yoke
TLV Adjustment
TLV VR
+
+ +
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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