Volume Control (Headphones And Speakers); Illumination - Samsung NP900X3B Series 9 Notebook User Manual

Proper Posture During Computer Use

Volume Control (Headphones and Speakers)

Check your volume fi rst 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 fi rst 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
refl ection 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 specifi ed in the User Guide.
Chapter 1
24
Getting Started