HP Presario S4000 Compaq Presario Desktop Products Warranty and Support Guide - Page 15

Lithium Battery Caution WARNING: The PC uses a lithium battery, type CR2032. There is danger of explosion if the battery is incorrectly replaced. Replace only with the same, or equivalent, type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions. Laser Safety Statement Class 1 LED Product The CD-ROM and DVD-ROM drives contain a laser system and are classified as a "Class 1 Laser Product" under a U.S. Department of Health and Human Services (DHHS) Radiation Performance standard according to the Radiation Control for Health and Safety Act of 1968. Should the unit ever require maintenance, contact an authorized service location. WARNING: Use of controls, adjustments, or performance procedures other than those specified in the Getting Started guide may result in hazardous radiation exposure. To prevent direct exposure to laser beam, do not try to open the enclosure of the CD-ROM or DVD-ROM. Laser Product Label The following label or equivalent is located on the surface of Compaq laser products: This label indicates that the product is classified as a CLASS 1 LASER PRODUCT. This label appears on a laser device installed in your product. TV Antenna Connectors Protection External Television Antenna Grounding If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is electrically grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information with regard to proper electrical grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna-discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.