The module consists of a circuit board with the two knobs protruding out to the front with another circuit board pressed into the back side.

In the photo you can see the potentiometer knob to the left is loose.

The third photo shows the two potentiometer switches and their ribbon cables connected to the backside board. The backside board can be pulled carefully straight out from its tucked position. Note that there is a mating connector holding the backside board into the front board.