The specific steps to remove the Uniview signature board are as follows:

1. Find the plug on the signature board: the plug is usually located at the lower part or next to the signature board. If you are not sure about the location of the plug, you can refer to the user manual of the signature board or official website.

2. Unplug: Unplug the plug carefully, and don't use too much force to avoid damaging the plug or disconnecting the power cord.

3. Remove the signature board: After pulling out the plug, you can gently pull up the signature board. If the signature board is not easy to remove, please check whether there are other connectors to fix the signature board and whether there are other fixing devices to prevent removal. If so, you need to find the location of the fixture according to the icon in the user manual, and then remove it step by step.

4. Cleaning the signature board: After removing the signature board, please carefully place it on a flat surface and carefully clean the surface of the signature board to ensure that it is free of dust or dirt. If you want to transport or store the signature board, you can put it in a dry place to avoid direct sunlight.