Common faults and solutions of outdoor LCD advertising machines

1. Outdoor advertising machine runs black screen

Check if the air conditioning of the outdoor LCD advertising machine is working and if the internal temperature is too high. If the air conditioning is not cooling, it needs to be replaced.

2. The remote control cannot be operated

Check if the remote control of the outdoor high brightness advertising machine is equipped with a dry battery, if the remote control head is aligned with the remote sensing sensor, and if the wire from the remote sensing sensor to the drive board is loose. If there are no issues mentioned above, it may be due to a damaged remote control or driver board.

3. The outdoor advertising machine displays a signal on the screen, but the screen is not full

Use the remote control to press "menu" - "setting" - "adjust" to semi automatically adjust the portrait

4. Display screen with image but no sound

Check if the video signal cable of the advertising machine is connected correctly, if there is image display during remote control operation, and if the signal source selection is correct. If none of the above issues are found, it may be due to a broken driver board.

                        
5. Outdoor LCD advertising machine is not powered on (black screen)

It may be due to poor internal power supply or faulty internal driver board of the device. Troubleshooting method: Check if the power output is normal. If there is no output from the power supply, it can be confirmed that there is a fault with the power supply; If the power output is normal, it may be a defect in the driver board.

6. Flower screen

The situation where a certain area on the surface of the display screen cannot be displayed or the display screen is abnormal is called a splash screen. Troubleshooting method: Check if the signal transmission line inserted into the LCD screen is loose, causing poor contact. If so, insert and secure the signal line, and check if the problem is resolved. If it is not caused by this situation, it may be due to a faulty LCD screen.

7. Dark screen (no display, flashing screen)

When playing advertisements, if the LCD screen remains black, dark, or flashing, it is referred to as a dark screen. Troubleshooting method: Check if the power output is normal. If the power output voltage is unstable and does not reach 11V-12V, it can be confirmed that the power supply has a fault. If the power output is abnormal, it is necessary to replace the driver board and inverter one by one until the fault is resolved.

8. No signal

When powered on, the words' no signal 'appearing on the screen are called' no signal '. Troubleshooting method: Check if the internal video cable and the 5V power cord input to the decoding board are loose. If they are not loose, replace the decoding board or driver board and check if the fault disappears.