Samsung NP900X4DMS1US User Manual

Also see for NP355V5C: User guide User guide User manual

23Chapter 1Getting StartedProper Posture During Computer UseVolume Control (Headphones and Speakers)Check your volume first to listen to music.Check yourvolume!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 theequalizer default setting before first usage.To prevent possible hearing damage, do not listen at high volumelevels for long periods.Use Time (Break Time)Take a break for 10 minutes or more after a 50-minute period•when working for more than one hour.IlluminationDo not use the computer in dark locations. The illumination•level for computer use must be as bright as for reading a book.Indirect illumination is recommended. Use a curtain to prevent•reflection on the LCD screen.Operation ConditionDo not use the computer in hot and humid locations.•Use the computer within the allowed temperature and•humidity range specified in the User Guide.