How to connect a big LED screen to an external device?


Table of Contents

It may seem like a complicated process to connect a large LED screen to an external device, but with the right steps, it is possible to achieve a successful connection. It doesn’t matter if you want to use it to give presentations, view multimedia content, or enhance your visual experience—learning how to connect it properly is crucial. 

In this guide, we’ll show you step-by-step how to connect a screen to an external device effectively, ensuring a strong connection and the best possible visual experience. Continue reading to learn how to make the most of your LED display!


Step 1: Check available connections

Check the technical specifications of your LED display and your external device to find out what connection points are available. Some displays have multiple HDMI, DisplayPort, or VGA ports, whilst other external devices may have a different combination of ports. Make sure there is at least one common entry point to establish the connection.

Step 2: Get the right cables


Purchase the necessary cables based on the available connections. These must be of good quality and the proper length to connect both equipment. For instance, if both your display and your device have HDMI ports, you’ll need a cable that works with both versions of this technology. A cable converter is required if the connections are different, such as HDMI in one and VGA in the other.

Step 3: Turn off the external device and the LED display

Ensure that both devices are turned off before attempting any connections. This ensures security and prevents potential harm to the components during the connection process. The source of their food must also be disconnected, as well.

Step 4: Connect the wires

Connect one end of the cable to the port that corresponds to the LED display and the other end to the port on the external device. Make sure the connectors are lined up properly, and then gently press to fully insert them into the openings. To ensure a reliable connection, they must be firmly inserted.

Step 5: Turn on the devices

Start the other device after turning on the screen. Enabling the first device before the external one enables it to accurately detect the video signal coming from the latter. Wait a few seconds for both teams to start up and establish a suitable connection.

Step 6: Set up the LED display


Use the controls or the remote control that is located away from the screen to access the configuration menu. Look for the video entry selection option and select the entry that matches the port where the cable is connected. For instance, if the HDMI cable is connected to HDMI port 1, choose HDMI port 1 from the menu on the LED display. 

If there are several entry options, choose the one that corresponds to the particular port you are using.


Step 7: Set up the external device

Gain access to the external device’s video or screen settings. The display configuration may be found in the control panel or in the visualization options, depending on the operating system or media player that is being used. Make sure the option to send the video seal to the screen is selected. Adjust the resolution and visualization settings as necessary to make them compatible with the capabilities of the LED display. Follow the detailed instructions for your external device to complete these configurations.

Step 8: Check the connection

Once all of the configurations have been completed, check to see if the LED display is accurately displaying the video output from the external device. Check the cords for connections and make sure the devices are properly configured if there is no image. To confirm that the video output from the external device is active, you can also experiment with various video inputs on the screen.



To help you make the connections required to start enjoying your large LED screen right away, Mirackle is offering a special service that is handled by our team of expert technicians. You will play the lead role in a unique experience. In the near future, get in touch with us; we’ll be happy to help!