Lenovo IdeaPad Y550 - Manual (Page 78)

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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.
Y550 UG V1.0_en.book Page 70 Wednesday, December 10, 2008 4:51 PM