The projectors can only be turned on with use of the remote.
If you are based in the United States, United Kingdom, or
France, you can purchase a replacement from our Need-It-Now Website: http://needitnow.prometheanworld.com/
If outside of those locations, replacements can be found by
contacting a local seller in your area: https://www.prometheanworld.com/how-to-buy/
If we can assist you further please let us know. Kind RegardsMarthaPromethean Technical Support