This Becton-Dickinson FACScan Analytical Flow Cytometer powers up and is a nearly complete system. The front control panel lights do not illuminate because the power supply to this part of the system is missing. There is also no power cord that comes with this unit. However, we had an identical system in complete working order and were able to power the machine on. This is how we were able to diagnose the problem. The system is in great condition aesthetically including all interior components. We will be happy to provide additional information as well as photos so please feel free to contact us with any questions.