Sharp DV-L70BL - Manual (Page 9)

GB 6
Apparatus Claims of U.S.Patent Nos. 4,631,603, 4,577,216, 4,819,098
and 4,907,093 licensed for limited viewing uses only.
This product incorporates copyright protection technology that is
protected by method claims of certain U.S. patents and other intellectual
property rights owned by Macrovision Corporation and other rights
owners. Use of this copyright protection technology must be authorized
by Macrovision Corporation, and is intended for home and other limited
viewing uses only unless otherwise authorized by Macrovision
Corporation. Reverse engineering or disassembly is prohibited.
Recommended Measures for Optimum Picture Excellence
The unit is a precision device that is constructed using extremely accurate
technology.
Soiling or friction affecting the pickup lens or disc drive can impair the
image quality. At the worst, neither video nor audio will be played back. To
obtain optimum picture quality, the player should be checked (cleaning and
replacement of some parts) every 1,000 hours. Note that this period varies
depending on the environment (temperature, humidity, dust, etc.) in which
the player is used. Contact your authorized Sharp supplier for details.
Do not attempt to clean the pickup lens yourself.
IMPORTANT SAFEGUARDS AND PRECAUTIONS