Rui Guan

How to solve the malfunctions of LCD advertising machines

2021-03-12 20:48:05 Rongsheng Xingda 612

LCD advertising machines utilize LCD displays to broadcast video advertisements, which are particularly suitable for high-end brands due to their comprehensive multimedia technology. They convey comprehensive product information, promotional information, and more to consumers.

LCD advertising machine shows no response after being plugged in

The LCD advertising machine not responding after being plugged in is a common issue in practical applications. Specific steps to troubleshoot include: checking if the indicator light is on when the power is turned off, as a normal light indicates that the power supply is working. Check if the dedicated power supply is powered on, and if any cables are loose or disconnected.

The LCD advertising machine has no sound

Users can first open the back cover of the LCD advertising machine, if it is a wall-mounted advertising machine

Remove the wall-mounted advertising machine, then open the back cover and use a multimeter to check if the driver board is powered on. Next, verify if the speaker cable is properly connected. If there is excessive noise from the speaker, it indicates that the advertising machine's driver board has been damaged and needs to be replaced immediately.

The screen of the LCD advertising machine flickers

In daily applications, flickering on the LCD advertising machine screen is a common issue encountered by users. To address this, users should first conduct an exclusion check on external factors such as the magnetic field and power supply voltage surrounding the device. If the issue persists, a comprehensive check of the display's graphics card driver should be conducted to rule out any issues with program installation.

Users can also try increasing the refresh rate to 75Hz to see if it works. If none of the above operations achieve satisfactory results, professional assistance is needed, and users need to send the device to a repair station for inspection.

The LCD advertising machine screen exhibits irregular patterns

Generally speaking, the occurrence of this phenomenon is caused by signal interference from the display card, which is a normal occurrence. Users can resolve it by automatically or manually adjusting the phase.