Samsung NP900X3B-A01US User Guide - Page 25
Volume Control Headphones and Speakers, Use Time Break Time, Illumination, Operation Condition - drivers
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Proper Posture During Computer Use Chapter 1 Getting Started 24 Volume Control (Headphones and Speakers) Check your volume first to listen to music. Check your volume! • Check if the volume is too loud before using headphones. • It is not recommended using headphones for long periods of time. • Any deviation from the equalizer default setting could cause hearing impairment. • The default setting can be changed through software and driver updates without your intervention. Please check the equalizer default setting before first usage. Use Time (Break Time) • Take a break for 10 minutes or more after a 50-minute period when working for more than one hour. Illumination • Do not use the computer in dark locations. The illumination level for computer use must be as bright so for reading a book. • Indirect illumination is recommended. Use a curtain to prevent reflection on the LCD screen. Operation Condition • Do not use the computer in hot and humid locations. • Use the computer within the allowed temperature and humidity range specified in the User Guide.