DynaScan Outdoor 360 Degree LED Video Display DS3522 - Manual (Page 4)

2 Operation Safety Precautions
‹ Before turning on the power
DANGER
z Check that the display system is earthed correctly to avoid electric shock.
z If the Neutral and Ground terminals of power cord are connected incorrectly, the
display system will short-circuit and probably go up in flames.
z Check that the operating voltage of the display system is identical with the voltage of
your local power supply.
WARNING
z If the 485 converter is not connected to the display system properly, the display system
might be shut down abnormally.
z Do not place anything heavy upon power cords or signal cables.
z Ensure all the cable connectors and the power plugs are connected securely in place
before turning on the display system.
‹ When the display is in operation
DANGER
z Do not disassemble any safety shields.
z Prevent the display system from being tiled.
WARNING
z Do not unplug the display system while in use; otherwise, its components may be
damaged due to such sudden surge of electricity.
z Do not change default settings or try to adjust any devices inside the base under the
guidance of professional technicians or engineers.
z Do not move the display system while operating.
Copyright © 2006 DynaScan Technology Corp. 2