1 important safety precautions, Preface, Safety warnings: 2.1 general safety prescriptions – DynaScan Outdoor 360 Degree LED Video Display DS3522 User Manual

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1 Important Safety Precautions:

1. Preface:

Please read this comprehensive manual carefully to realize how to perform the functions of
the display system and how to ensure your safety. If you have questions not mentioned in
this manual, please feel free to consult local dealers or contact DynaScan directly for help.
Our technical teams will be pleased to service you.

2. Safety Warnings:

2.1 General safety prescriptions

DANGER

z After you shut down the power, do not touch Printed Circuit Boards (PCB) and their

components until the indicators of inverter, AC/DC converter and power extinguish

completely.

z If you want to connect any electrical wires or check any components on the PCBs, turn

off the power of the system and unplug the power cord from the power outlet first.

z Do not arbitrarily disassemble and change the electric connecting dispositions, cords or

components inside the display system.

z Check that the operating voltage of the display system is identical with the voltage of

your local power supply.

z Ensure that the display system is grounded correctly.
z After you shut down the power, do not move the display system if the rotating screen

does not come to a full stop.

Do not allow anything falling into the drum screen chamber or the base.

Do not tilt the display system.

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Unsuitable Installation Surroundings

WARNING

z Keep DynaScan Display System away from:

1. Direct sunlight
2. Erosive gases and liquids
3. Salty environments
4. Water
5. Metal chips and dust
6. Extremely Humidity
7. Flammable materials
8. A messy place
9. Unstable or soft grounds
10. The location where the ambient temperature is over 40℃ or under -20℃.