Viewsonic TD2420 User Manual

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20. Use only with the cart, stand, tripod, bracket, or table specified by 

the manufacturer, or sold with the equipment. When a cart is used, 

use caution when moving the cart/equipment combination to avoid 

injury from tipping over. 

21. Unplug this equipment when it will be unused for long periods of time.
22. Refer all servicing to qualified service personnel. Service is required when the 

unit has been damaged in any way, such as: if the power-supply cord or plug is 

damaged, if liquid is spilled onto or objects fall into the unit, if the unit is exposed 

to rain or moisture, or if the unit does not operate normally or has been dropped.

Moisture may appear on the screen due to environmental changes. However, it 

will disappear after a few minutes.