Disonnect the other ribbon cable from the pcb that goes to the small pcb at the front of the unit.
Peel the ribbon cable the same way as the other ribbon cable, it is attached to the case the same way.
Remove the screws holding the small pcb to the case and remove.
Cover the double sided tape residue with some backing paper from a sticker or contact then stick it down with some masking tape, this will prevent the residue from getting covered in crap.You will need this residue there to hold the ribbon cables in place when you put it back together.
Leave the guide bar in place, it doesn't seem to come out easily so i just left it in.