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10. Adjust roughly the Low Light controls and make sure that a uniform
white field is obtained.
11. Tighten the clamp screw.
5.8. CONVERGENCE
1. INSTRUMENT
A. Helmhortz device
2. PREPARATION
A. Set the Helmhortz device to local magnetic field. / Horizontal: 0 ±
0.03 x10
T
-4
B. Receive the cross hatch pattern.
C. Picture menu: DYNAMIC Normal and adjust BRIGHT DAC until gray
portion of cross hatch.
D. Set DY to CRT not to tilt (up and down and left and right).
3. ADJUSTMENT
A. Static convergence Adjustment
a. Make sure that magnets are positioned shown in Fig. 1.
b. Adjust 4-pole magnets (Fig. 1) to align center dots of R and B and
adjust 6-pole magnets to align center dots to G.
c. After adjustment, secure magnets with magnet lock of white
lacquer. / *Beams move with rotating when static magnets are
turned. / Rotational reduce of beams differs by angle of two
magnets. / Therefore, repeat magnet adjustments several times so
that all are aligned completely.
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