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7. Play test disc T43 (outer periphery).
8. Adjust tilt adjustment screw 2 so that the jitter value is minimized.
9. Repeat adjusting tilt adjustment screws 1 and 2 alternately until
the jitter value is minimized.
8.4.1.2. Important points
1. Make tangential adjustment first, and then make tilt adjustment.
2. Repeat adjusting two or three times to find the optimum point.
3. Finish the procedure with tilt adjustment.
Jitter value depends on the model:
1. If the jitter value changes like B, the optimum point is easy to find.
2. If the jitter value changes like A, set the optimum point near the
middle.
8.4.1.3. Check after adjustment
Play test disc or any other disc to make sure there is no picture degradation in the inner, middle
and outer peripheries, and no audio skipping. After adjustment is finished, lock each adjustment
screw in position using screw lock.
8.4.1.4. Procedure for screw lock
43
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