With the ribbon cable (top right) being 1. Following counterclockwise to the last connection (bottom right) being 9.
Unplug the machine from the power source
Unplug all connections except 1 and 3.
Plug the machine back into the power source
One by one, plug in connections : 2,4,6,7,8,5
Each time a connection is plugged in, check to see if the machine is on.
Advise if and when the machine turns off.