This document is an operation manual for liquid crystal televisions, providing instructions for the LC-13S2U, LC-15S2U, and LC-20S2U models. The manual includes important information and warnings, such as not exposing the product to rain or moisture, not opening the product, and not attempting to service it as there are no user-serviceable parts inside. Qualified service personnel should be consulted for servicing. The manual also provides a space to record the model and serial numbers for reporting in case of loss or theft. It warns that unauthorized changes or modifications to the equipment may void the user's authority to operate it according to FCC regulations. Lastly, the manual includes a reminder for CATV system installers regarding Article 820-40 of the National Electrical Code.