Does anyone know how to fix a ThinLite tablet (aka portable light table)?
My artist mother commissioned a friend to make her a couple of portable lap desks about ten years ago. They were made by incorporating a ThinLite Porta-Trace into a thin, laminate wood, lap desk. Her friend also changed the plug to an in-line switch for convenience. These have worked great until a few months ago when they simply stopped turning on. They both quit working with in weeks of one another.
I suspect that the in-line switches are busted (having seen ten years of heavy use) but I have no idea how to test this theory. The inner workings of the light table are so alien to me I don't know where to begin.
Can anyone offer any guidance?