Lenovo ThinkPad L520 (English) User Guide - Page 16

Liquid crystal display notice, Using headphones or earphones, Additional safety information

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• Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure. 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 notice CAUTION: For products with mercury-containing fluorescent lamps (i.e., non-LED) • The fluorescent lamp in the liquid crystal display contains mercury; dispose according to local, state, or federal laws. • 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 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 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 earphones and headphones output voltage and therefore the sound pressure 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 Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of suffocation. Notice for Tablet PC users Safety Notice for users in Australia: xiv User Guide

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•
Use of controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
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 notice
CAUTION:
For products with mercury-containing fluorescent lamps (i.e., non-LED)
•
The fluorescent lamp in the liquid crystal display contains mercury; dispose according to local,
state, or federal laws.
•
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 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
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 earphones and headphones output voltage and therefore the
sound pressure 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
Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger
of suffocation.
Notice for Tablet PC users
Safety Notice for users in Australia:
xiv
User Guide