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Changing the source on Promethean Interactive Screens.

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1. On either side of the device will be a button that has three horizontal dashes, this will open the menu. Click the button that looks like this.

   

 

2. HDMI is usually source 1 but can vary. You can cycle through each source until you find yours. When clicking a new source, wait 10 seconds

    to allow the screen to register.

 

 

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