I have a 4000 that was working fine for years. It began to have problems and they've only gotten worse. I'm down to this. All boards removed, brand new (from AmigaKit) memory. Yesterday I could get to the point that it would ask for the install disk and read it properly. However, attaching an HD kept the FD from working. Black screen, nothing more. Today the FD won't even light. PS? Motherboard?
