Lenovo E4430 User Manual

Page 13

DANGER

Liquid crystal display (LCD) notice

CAUTION:
For products with mercury-containing fluorescent lamps (for example, non-LED)

•

The fluorescent lamp in the liquid crystal display 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 fluid 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

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 specifications of EN 50332-2. The
headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specification
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 specifications 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

Save these instructions.

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.

Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of
suffocation.