Lenovo Y450 Laptop Lenovo IdeaPad Y450 User Guide V3.0 - Page 89

Some CD and DVD drives contain an embedded Class 3A or Class 3B

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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. Danger: Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. 80

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Chapter 6. Safety, use, and care information
80
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.
Danger:
Laser radiation when open. Do not stare into the beam, do not view directly
with optical instruments, and avoid direct exposure to the beam.
²
²