Power Supply Statement - Lenovo ThinkCentre A57e Safety And Warranty Manual

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 60
825-1 for Class 1 laser products.
When a CD or DVD drive is installed, note the following handling instructions.
CAUTION
Use of controls or 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.

Power supply statement

Never remove the cover on a power supply or any part that has the following
label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts inside
these components. If you suspect a problem with one of these parts, contact a
service technician.
Chapter 1. Important safety information
21