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lightly clean the disc from the inner to outer edges in axial
direction.
10.3. Cleaning optical pickup
1. Attach the AC adapter/charger or battery (power supply), and then
slide the DISC EJECT switch to open the disc insertion block.
2. Remove the AC adapter/charger or battery (power supply).
3. Check to see whether the optical pickup is dirty. If it is not dirty,
use the following procedure to clean it:
A. Apply one drop of absolute alcohol on a clean cotton swab (*1).
Lens cleaner liquid for CD/DVD (generally available) may be
substituted for absolute alcohol.
B. Lightly swab the optical pickup to clean it.
Using too much force during cleaning may cause a fault to
occur.
*1: Always use a fresh cotton swab free from any additive or
chemical.
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