Acer R920 Series Manuel D’Utilisation

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Use the product only with the supplied power supply cord set. If you need 
to replace the power cord set, make sure that the new power cord meets 
the following requirements: detachable type, UL listed/CSA certified, type 
SPT-2, rated 7 A 125 V minimum, VDE approved or its equivalent, 4.6 
meters (15 feet) maximum length. 
Safe listening
Follow these instructions, suggested by hearing experts, to protect your 
hearing.
Gradually increase the volume until you can hear it clearly and comfortably 
and without distortion. 
After setting the volume level, do not increase it after your ears adjust. 
Limit the amount of time listening to music at high volume. 
Avoid turning up the volume to block out noisy surroundings. 
Turn the volume down if you can't hear people speaking near you. 
Product servicing 
Do not attempt to service this product yourself, as opening or removing covers 
may expose you to dangerous voltage points or other risks. Refer all servicing to 
qualified service personnel. 
Unplug this product from the wall outlet and refer servicing to qualified service 
personnel when: 
the power cord or plug is damaged, cut or frayed 
liquid was spilled into the product 
the product was exposed to rain or water 
the product has been dropped or the case has been damaged 
the product exhibits a distinct change in performance, indicating a need 
for service 
the product does not operate normally after following the operating 
instructions
Note: Adjust only those controls that are covered by the 
operating instructions, since improper adjustment of other 
controls may result in damage and will often require extensive 
work by a qualified technician to restore the product to normal 
condition.