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DANGER
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam.
Liquid crystal display (LCD) notice
CAUTION:
The liquid crystal display (LCD) is made of glass, and rough handling or dropping the computer can
cause the LCD to break. If the LCD breaks and the internal uid gets into your eyes or on your
hands, immediately wash the affected areas with water for at least 15 minutes; if any symptoms are
present after washing, get medical care.
CAUTION:
For products with mercury-containing uorescent lamps (for example, non-LED)
• The uorescent lamp in the liquid crystal display (LCD) contains mercury; dispose of according to
local, state, or federal laws.
• The LCD is made of glass, and rough handling or dropping the computer can cause the LCD to
break. If the LCD breaks and the internal uid gets into your eyes or on your hands, immediately
wash the affected areas with water for at least 15 minutes; if any symptoms are present after
washing, get medical care.
Using headphones or earphones
If your computer has both a headphone connector and an audio-out connector, always use the headphone
connector for headphones (also called a headset) or earphones.
CAUTION:
Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of
the equalizer to maximum increases the earphone and headphone output voltage and the sound
pressure level. Therefore, to protect your hearing, adjust the equalizer to an appropriate level.
Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the
output of the headphone or earphone connectors do not comply with specications of EN 50332-2. The
headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specication
limits the computer’s maximum wide band true RMS output voltage to 150 mV. To help protect against
hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Clause 7
limits) for a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN
50332-2 can be dangerous due to excessive sound pressure levels.
If your Lenovo computer came with headphones or earphones in the package, as a set, the combination of
the headphones or earphones and the computer already complies with the specications of EN 50332-1.
If different headphones or earphones are used, ensure that they comply with EN 50332-1 (Clause 6.5
Limitation Values). Using headphones that do not comply with EN 50332-1 can be dangerous due to
excessive sound pressure levels.
Additional safety information
DANGER
Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger
of suffocation.
xiv User Guide