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17.2.1 Important points in optical adjustment
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Before starting optical adjustment, be sure to take anti-static measures.
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Optical pickup tilt adjustment is needed after replacement of the following components.
1. Optical pickup unit
2. Spindle motor unit
3. Optical pickup peripheral parts (such as rail)
Notes
Adjustment is generally unnecessary after replacing other parts of the traverse unit. However, make
adjustment if there is a noticeable degradation in picture quality. Optical adjustments cannot be made
inside the optical pickup. Adjustment is generally unnecessaryafterreplacing the traverse unit.
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