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Text excerpt from page 4 (click to view)
OPTICAL PICK-UP CLEANING
1 Remove the case. (Refer to disassembly page 8)
2 four screws (BVTP M2.6)
3 Open the magnet ass�y.
4 Cleaning the optical pick-up.
Note 1: In cleaning the lens, do not apply an excessive force. As the optical pick-up is vulnerable, application of excessive force could damage the lens holder. Note 2: In cleaning, do not use a cleaner other than exclusive cleaning liquid (KK-91 or isopropyl alcohol). Note 3: Wipe the objective lens spirally from center toward outside. (See Figure A)