Translating step 7
Lifting off the cowling reveals a couple standard-issue ribbon cables. The extra slack lets the eyepiece assemblies wiggle around and move back and forth to adjust the interpupillary distance, or IPD (that is, the distance between your eyes).
Three more ribbon cables attach the LED control board to the IR LED array, webbed around the inside of the headpiece housing.
Here's the meat of the Oculus!