Since the PRM-30A can only be turned on with the remote, the projector is now useless. Surely Promethean has made arrangements for replacement parts. I have contacted Panasonic but they do not have the remote either.
Thank you for your post.
Please note that you will need to contact a Promethean reseller. You can find one at http://www.prometheanworld.com/gb/english/education/about-us/how-to-buy/
Please let us know if you need more information.
Promethean Technical Support