Lenovo IdeaPad Y650 User Manual
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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.
Do not remove the drive covers. 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. Note the following statement.
Y650 User Guide V1.0_en.book Page 70 Tuesday, December 16, 2008 2:59 PM