Gilford 2600 spectrophotometer setup

I have a Gilford 2600 UV/Vis spectrophotometer circa 1981 which was rescued from the dump. From what I can gather from a for sale image on the web I have all the bits, however I am comfused about the power supply system. There are two power supplies present, 1 in the main spectro unit and 1 in the cell changer. There were patch cords with my unit but the trouble is the gender of the wide d-connector which plugs into the photometer unit is wrong for the corresponding plugs on the main unit (labelled digital in and -out). This suggests to me that the power supply for both the photometer and lamps for that matter may be a separate module. Can anyone confirm this or if incorrect guide me on the connection configuration ie. what plugs into what. I can't just test the unit as I've had it stored for quite a few years and a number of the common logic /op amp chips on the circuit boards have corroded thus breaking the connection and so the unit is currently disfunctional. It was OK when stored but before hunting down all the damaged chips I'd like to determine if I will still be short a power supply. Thanks in advance.