HP Pavilion 500 HP Pavilion Desktop PC - (English) Warranty and Support Guide - Page 16

Warning: Always disconnect the modem cord from the telephone system before installing or removing your computer cover. Warning: Do not operate the computer with the cover removed. Warning: The power supply is not user-serviceable. To prevent damage to the power supply, have a qualified person repair or replace it. All other components are user-serviceable. Warning: For your safety, always unplug the system from its power source and from any telecommunications systems (such as phone lines), networks, or modems before performing any of the procedures described in this guide. Failure to do so may result in personal injury or equipment damage. Hazardous voltage levels are inside the power supply and modem of this product. 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 Upgrading and Servicing the PC 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 HP 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.