Remove the screw holding the interconnect board in place with a #1 Philips driver.

The interconnect board has an electrical connector under the right hand side.

Note the position of the metal shield. The screw hole will need to line up for reassembly.

Lift the rear edge of the keyboard then slide the whole keyboard to the rear and lift it out. There was a small piece of double sided tape on the underside of the keyboard, so you may feel a bit of resistance when sliding it out.