No sound on the Promethean Board

*If you have an Activboard 300 Pro series and have no sound, check your connection box behind your board and make sure the stand-by button is not red. If it is red, push it in until it turns green. You should have sound now!

My sound will not work!

Check all your connections. Is the plug in the computer in the headphone jack? Is the sound turned on and the volume raised for all devices? Check the mute button. Has it been activated? Check the mute button on the projector. Has it been selected?

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