Sony TRINITRON KV-21C5B, Service Manual

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18
BMC (Hexapole)
V.STAT
Purity
R G B R G B R G B
R G B R
G
B
R
G
B
G B
R
R G B
R G B
R G
B
R
G
B
R
G
B
R G B R
G B
R G
B
R
G
B
R G B
R
G
B
(2) Operation of the BMC (Hexapole) magnet.
• The respective dot position resulting from moving each
magnet interact, so be sure to perform adjustment whilst
tracking.
Use the H.STAT VR to adjust the Red, Green and Blue dots
so that they coincide at the centre of the screen
[by moving the dots in the horizontal direction].
(3) Dynamic convergence adjustment.
Preparation:
• Before starting this adjustment, adjust the horizontal and
vertical static convergence.
1. Slightly loosen the deflection yolk screws.
2. Remove the deflection yolk spacer.
3. Move the deflection yolk as indicated in the figure below and
optimize the convergence.
4. Tighten the deflection yolk screws.
5. Re-install the deflection yolk spacer.