Thanks for the welcome Soulsaver.
My contact here in Ireland is a Roland Agent, and after a conversation on the phone, we agreed what the actual part was, and he ordered it. I wish I had been as wise as you and asked all those questions.
I got a text from the agent, (James), after the phone conversation, and he said that he had ordered the part, and it would cost €50 and take 4 weeks to arrive. I have no idea what the shipping charges will be. I was just delighted to talk to someone who was going to solve my problem. On reflection, the €50 seemed very cheap for what I wanted and I began to have doubts as to what James had actually ordered for me. So I am waiting with great trepidation to see what is going to arrive in 4 weeks. I also have no idea where James ordered it from, but will find out when it arrives. What larks eh ??
One thing I am thankful for is that my friend Jimgansett, had sent me an assembly drawing for the FR 8X, so I knew the name of the housing --- it is called a Fondino ! This bit of information helped enormously during the phone conversation with James in trying to identify the required part.
You ask what the purpose of the "Board" is ?? The Fondino is a rectangular housing which contains the Bass buttons, and the loudspeakers are attached to it. It also has the air release button held in it. It is attached to the main housing by six screws, two of which are visible in the photo. Looking at the photo one might get the impression that the crack is only on a plate or board but in fact it is the bottom of a housing, which is about 3 or 4 inches deep.
My reason for asking if any other member had experienced this damage was that I would try and not repeat the cause for it, with the new part. I doubt if simply pushing on the bottom of the housing would cause such damage but I have no idea what the previous owner did to cause the fracture.