CONVERGENCE ADJUSTMENT
CENTER CONVERGENCE ADJUSTMENT
1. Connect a crosshatch generator to antenna terminals. 2. Set Contrast control to low level to eliminate Blooming. Reduce Brightness level to obtain black background if necessary. 3. Adjust the angle between the four-pole magnet tabs 1 and 2 (Figure 2), and superimpose the red and blue vertical lines in the center area of the picture screen. See Figure 4. 4. Keeping the tabs at the same angle, rotate them together to superimpose the blue and red horizontal lines in the center area of the picture screen. See Figure 4. 5. Adjust the six-pole magnet tabs 3 and 4 so the converged red/blue line is superimposed on the green line. This is the same procedure used in Steps 3 and 4. See Figure 5.
OUTER AREA CONVERGENCE ADJUSTMENT
The outer area convergence is performed by positioning of the yoke as follows: 1. Move the top of the yoke toward or away from the picture tube. This movement will affect the vertical lines at the top and bottom and the horizontal lines at the sides. See Figure 6. 2. Check that splits at 12 O�Clock and 6 O�Clock positions are minimized, adjust yoke for best compromise. Secure with wedge at 12 O�Clock position. See Figure 1. 3. Move the side of the yoke toward or away from the picture tube to converge the horizontal lines at the top and bottom and the vertical lines at the sides. See Figure 7. 4. Check that splits at 12 O�Clock and 6 O�Clock are minimized, adjust yoke for best compromise. Secure yoke position with the side wedges. See Figure 1. Note: When reusing the rubber wedges, apply a small amount of silicone rubber adhesive or hot melt to each of the wedges.
GREEN BLUE RED
BLUE
BLUE
GREEN
RED
RED
Adjust four-pole tabs angle to superimpose blue and red vertical line.
Adjust four-pole tabs together to superimpose red and blue horizontal line.
Line movement when adjusting top of yoke in and out.
Figure 4. Blue an Red Line Movement
Figure 6. Top of Yoke Movement
BLUE GREEN RED
BLUE / RED
BLUE GREEN RED
BLUE GREEN RED
GREEN BLUE GREEN RED Line movement when adjusting side of yoke in and out.
Adjust six-pole tabs angle to superimpose red / blue and green vertical line.
Adjust six-pole tabs together to superimpose red / blue and green horizontal line.
