This is the schematic for this prompter project. The connections are very simple. Just connect the data strip from the HDMI driver to the LCD. Also connect the 2 cabes with power for the LCD. You can extra add the menu buttons, but we usually won't need that for this project. Then connect the 12V supply to the input and output DC connectors. Make sure you won't connect it with invers poalrity! Add the HDMI cable between the driver and PC.