Sony NWZ-A728PNKBB Operation Manual page 121

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Additional Information
On the LCD
 Do not apply strong force to the surface of the LCD. This may cause a
distortion in colors or brightness, or cause a malfunction of the LCD.
 If you use the player in a cold location, images may appear with black bands
around them. This is not a malfunction of the player.
On cleaning
 Clean the player's case with a soft cloth, such as a cleaning cloth for
eyeglasses.
 If the player's case becomes very dirty, clean it with a soft cloth slightly
moistened with water or a mild detergent solution.
 Do not use any type of abrasive pad, scouring powder, or solvent, such as
alcohol or benzene, as it may mar the finish of the case.
 Be careful not to let water get into the player from the opening near the
connector.
 Clean the headphone plug periodically.
 To clean the earbuds, remove them from the headphones, and hand wash
with a mild detergent solution. Dry off sufficiently before use after washing.
If you have any questions or problems concerning the player, please consult
your nearest Sony dealer.
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