Lenovo 10030 Veiligheids- en garantiehandleiding - Pagina 20

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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.

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.

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 headphones 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.

Safety and warranty guide