1. Switch LED Display Screen Precautions:

1. Switch sequence: When turning on the screen: power on the computer first, then turn on the screen. When turning off the screen: turn off the screen first, then power off the computer. (Turning off the computer before the display screen will cause bright spots on the screen and damage the lamps, which is very serious.)
2. Switch LED Outdoor Display Screen The interval time should be more than 5 minutes.
3. Only after the computer enters the engineering control software can the screen be powered on.
4. Avoid turning on the screen when it is fully white, as the system's inrush current is large at this time.
5. Avoid turning on the screen when it is out of control, as the system's inrush current is large at this time.

A. The computer has not entered the control software or other programs;
B. The computer is not powered on;
C. The control part power supply is not turned on.

6. When the ambient temperature is too high or the heat dissipation conditions are poor, avoid keeping the screen on for a long time.
7. LED Outdoor Display Screen If a very bright line appears on part of the screen, turn off the screen promptly. It is not advisable to keep the screen on for a long time in this state.
8. If the display screen's power switch frequently trips, check the screen or replace the power switch in time.
9. Regularly check the firmness of the hanging points. If there is any looseness, adjust, reinforce, or replace the hanging parts promptly.
10. According to the environment of the display screen and control parts, avoid insect bites; if necessary, place rodent repellent.

2. Precautions for changes and modifications to the LED display screen control part

1. The power lines (neutral and live) of the computer and control parts must not be reversed; they must be connected strictly according to the original positions. After connecting peripherals, test whether the casing is electrified.
2. When moving computers or other control devices, check for loose connections on cables and control boards before powering on.
3. Do not arbitrarily change the position or length of communication cables or flat connection cables.
4. After moving, if short circuits, tripping, wire burning, smoke, or other abnormalities occur, do not repeatedly power on for testing; find and fix the problem promptly.

3. LED Display Screen Software operation and usage precautions

1. Software backup: It is recommended to use "One-Key Restore" software for convenient operation.
2. Be proficient in installation methods, original data recovery, and backup.
3. Master the setting of control parameters and modification of basic data presets.
4. Be proficient in using programs, operations, and editing.
5. Regularly check for viruses and delete irrelevant data.
6. Non-professional personnel should not operate the software system.