NEC MD21GS-3MP Installation & Maintenance Manual page 31

Recommended Use
CORRECT PLACEMENT AND ADJUSTMENT OF THE DISPLAY
CAN REDUCE EYE, SHOULDER AND NECK FATIGUE. CHECK
THE FOLLOWING WHEN YOU POSITION THE DISPLAY:
• For optimum results during self and copy calibrations,
allow 30 minutes for warm-up.
• Adjust the display height so that the top of the screen is at
or slightly below eye level. Your eyes should look slightly
downward when viewing the middle of the screen.
• Position your display no closer than 16 inches and no
further away than 28 inches from your eyes. The optimal
distance is 20 inches.
• Rest your eyes periodically by focusing on an object at
least 20 feet away. Blink often.
• Position the display at a 90° angle to windows and other
light sources to minimize glare and reflections. Adjust the
display tilt so that ceiling lights do not reflect on your screen.
• Clean the display surface with a lint-free, non-abrasive cloth. Case of persistent dirt, wipe with
cloth permeated by water, ethanol, isopropyl-alcohol completely. Avoid using any cleaning
solution or glass cleaner (ex Acid, Alkali and Acetone).
• Adjust the display's brightness control to enhance readability.
• Position whatever you are looking at most of the time (the screen or reference material) directly
in front of you to minimize turning your head while you are typing.
• Avoid displaying fixed patterns on the display for long periods of time to avoid image
persistence (after-image effects).
Ergonomics
To obtain the best possible ergonomics benefits, we recommend the following:
• Use the preset Size and Position controls with standard signals
• Use non-interlaced signals with a vertical refresh rate of 60Hz
Cleaning the LCD Panel
• When the liquid crystal panel is stained with dust or dirt, please wipe with soft cloth gently.
• Please do not rub the LCD panel with hard material.
• Please do not apply pressure to the LCD surface.
• Please do not use OA cleaner it will cause deterioration or discolor on the LCD surface.
Cleaning the Cabinet
• Unplug the power supply
• Gently wipe the cabinet with a soft cloth
• To clean the cabinet, dampen the cloth with a neutral detergent and water, wipe the cabinet and
follow with a dry cloth.
NOTE: Many plastics are used on the surface of the cabinet. DO NOT clean with benzene, thinner,
alkaline detergent, alcoholic system detergent, glass cleaner, wax, polish cleaner, soap powder, or
insecticide. Do not touch rubber or vinyl to the cabinet for a long time. These types of fluids and
fabrics can cause the paint to deteriorate, crack or peel.
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