Can anyone tell me the wiring plug colours on the circuit board. The plugs I'm not sure about are marked as X3 on the wiring diagram (on the left 2nd row down). The first 2 are blank, the next two i'm confused as to which go where and the end has a black loop. One connection has brown blue black and the other is black n white.
Any help greatly appreciated.

Ron Bradshaw, February 2011