Service manual

- 19 -
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.
b). VMC correction by BMC [Hexapole] magnet and movement of
the electron beam.
Adjust the HAMP using HAMPL and HAMPR registers in the
Dynamic Convergence section of the service menu.
HTIL correction can be performed by adding a THL correction
assembly to the Deflection yoke.
C < D
C = D C > D C = D
R
G
B
C
D
C
D
R
G
B
R
G
B
R
G
B
VMC correction(A) VMC correction(B)
THL Correction assy
HAMP Adjustment
HTIL Adjustment
YCH Adjustment
HMC correction(A) HMC correction(B)
A < B
A = B
RG B
RG B
A > B
A = B
RGB
RG B
TLV Adjustment
H-TRAP Adjustment
The H-TRAP should not be adjusted unless absolutely necessary as it
affects the TLV settings.
+
+
+
YCH VR
Deflection Yoke
+
+
+
TLV VR
Deflection Yoke
HTRAP VR
+
+
+
Deflection Yoke