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15.4.1.1 Adjustment procedure
1.
While pressing STOP button on the main unit, press "5" on the remote control unit.
2.
Confirm that "J_xxx/yyy_zz" (display1/display2) is shown on the front display.
For your information:
"yyy" and "zz" shown to the right have nothing to do with the jitter value. "yyy" is the error counter, while "zz" is the
focus drive value.
Note:
Jitter value appears on the front display.
3.
Play test disc T30 (center periphery).
4.
Adjust tangential adjustment screw so that the jitter value is minimized.
5.
Play test disc T30 (center periphery).
6.
Adjust tilt adjustment screw 1 so that the jitter value is minimized.
7.
Play test disc T30 (center 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.
15.4.1.2 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.
15.4.1.3 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.
15.4.1.4 Procedure for screw lock
1.
After adjustment, remove top cover, tray, clamper base and traverse unit in this sequence.
2.
Lay the traverse unit upside down, and fix adjustment screw with screw lock.
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