User manual LENOVO IDEAPAD Y450

[. . . ] Lenovo IdeaPad Y450 User Guide V3. 0 Note Before using this information and the product it supports, be sure to read the following: · · · Chapter 6. Safety, use, and care information on page 63. OneKey Rescue System User Guide included in the package with this publication. Third Edition (May 2009) © Copyright Lenovo 2009. LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial items as defined by 48 C. F. R. [. . . ] Whenever possible, use one hand only to connect or disconnect signal cables. Never turn on any equipment when there is evidence of fire, water, or structural damage. Disconnect the attached power cords, battery pack, and all the cables before you open the device covers, unless instructed otherwise in the installation and configuration procedures. Do not use your computer until you have closed the cover. Never use the computer when the cover is open. 77 Chapter 6. Safety, use, and care information Connect and disconnect cables as described in the following procedures when installing, moving, or opening covers on this product or attached devices. The power cord must be disconnected from the wall outlet or receptacle before installing all other electrical cables connected to your computer. The power cord may be reconnected to the wall outlet or receptacle only after all other electrical cables have been connected to the computer. 78 Chapter 6. Safety, use, and care information Laser compliance statement Some personal computer models are equipped from the factory with a CD or DVD drive. CD and DVD drives are also sold separately as options. The drive's classification label (shown below) is on the surface of the drive. CLASS 1 LASER PRODUCT LASER KLASSE 1 LUOKAN 1 LASERLAITE APPAREIL A LASER DE CLASSE 1 KLASS 1 LASER APPARAT Example of the label 79 Chapter 6. Safety, use, and care information These drives are certified in the U. S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, these drives are certified to conform to the requirements of the International Electrotechnical Commission (IEC) 60825-1 and CENELEC EN 60825-1 for Class 1 laser products. Class 1 laser products are not considered hazardous. The design of the laser system and the optical storage drive ensures that there is no exposure to laser radiation above a Class 1 level during normal operation, user maintenance, or servicing. When a CD or DVD drive is installed, note the following handling instructions. Danger: Use of controls, adjustments, or performance of procedures other than those specified herein might result in hazardous radiation exposure. Removing the covers of the CD or DVD drive could result in exposure to hazardous laser radiation. There are no serviceable parts inside the CD or DVD drive. Some CD and DVD drives contain an embedded Class 3A or Class 3B laser diode. [. . . ] 56 V VeriFace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 VGA port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4, 41 Volume button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 R RJ-45 port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]