Lenovo 30141DU - IdeaCentre Q100 Mini PC Safety And Warranty Manual page 49

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-ROM drive or DVD-ROM drive could result in
exposure to hazardous laser radiation. There are no serviceable parts inside the CD-ROM drive or DVD-ROM
drive.
Some CD-ROM drives and DVD-ROM 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.
Data safety
Do not delete unknown files or change the name of files or directories that were not created by you; otherwise,
your computer software might fail to work
Be aware that accessing network resources can leave your computer vulnerable to computer viruses, hackers,
spyware, and other malicious activities that might damage your computer , software, or data. It is your
responsibility to ensure that you have adaquate protection in the form of firewalls, antivirus software, and anti-
spyware software and keep this software up to date.
Cleaning and maintenance
Keep your computer and workspace clean. Shut down the computer and then disconnect the power cord
before cleaning the computer. Do spray any liquid detergent directly on the computer or use any detergent
containing flammable material to clean the computer. Spray the detergent on a soft cloth and then wipe the
computer surfaces.
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Safety and warranty guide