PURITY & CONVERGENCE ADJUSTMENT
RING | ROTATION DIRECTION |
| MOVEMENT OF RED |
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PAIRS | OF BOTH TABS |
| AND BLUE BEAMS |
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|
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| B | OR | B |
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| OPPOSITE |
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4 |
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| R |
| R |
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POLE |
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| SAME | B | R | OR | B | R |
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|
| B | OR | B |
|
| OPPOSITE |
| R | R |
| |
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6 |
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POLE |
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| SAME | B | R | OR | B | R |
UP/DOWN ROCKING OF THE YOKE CAUSES OPPOSITE ROTATION OF RED AND BLUE RASTERS
GREEN
LEFT/RIGHT ROCKING OF THE YOKE CAUSES OPPOSITE SIZE CHANGE OF THE RED AND BLUE RASTERS
| ADJUSTMENT |
|
|
|
| VIEWING | BLUE | RED |
|
| AREA |
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GREEN | RED |
| BLUE |
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| BLUE |
| RED | GREEN |
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| RED | BLUE |
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GREEN
12.While watching the 6 o'clock positions on the screen, rock the front of the yoke in a vertical (up/down) direction to converge the red and blue vertical lines. (Fig upper left)
13.Temporarily place a rubber wedge at the 12 o'clock position to hold the vertical position or the yoke.
14.Check the 3 o'clock and 9 o'clock areas to confirm that the red and blue horizontal lines are converged.
If the lines are not converged, slightly offset the vertical tilt of the yoke (move the rubber wedge if necessary) to equally balance the convergence error of the horizontal lines at 3 o'clock and 9 o'clock and the vertical lines at 6 o'clock and 12 o'clock.
15.Place a 1.5 inch piece of glass tape over the rubber foot at the rear of the 12 o'clock wedge.
16.While watching the 6 o'clock and 12 o'clock areas of the screen, rock the front of the yoke in the horizontal (left to right) motion to converge the red and blue horizontal lines.
(Fig. upper right)
| GREEN |
ADJUSTMENT | RED |
VIEWING |
|
AREA | RED |
| |
| TV |
| SCREEN |
17.Temporarily place a rubber wedge at the 5 o'clock and 7 o'clock positions to hold the horizontal position of the yoke.
18.Check the 3 o'clock and 9 o'clock areas to confirm that the red and blue vertical lines are converged. If the lines are not converged, slightly offset the horizontal tilt of the yoke (move the temporary rubber wedges if necessary) to equally balance the convergence error of the horizontal lines at 6 o'clock and 12 o'clock and the vertical lines at 3 o'clock and 9 o'clock.
19.Using a round magnet confirm purity at the center, right and left sides and corners. See Purity Adjustment Procedure.
20.Reconfirm convergence and apply a 1.5 inch piece of glass tape over the rubber foot at the rear of the 5 o'clock and the 7 o'clock wedges.
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