The single PCB is secured with 2 cross head screws and a ribbon cable which leads to the "display".

By lifting the tightening cover of the ribbon cable you can remove it.

By removing the 2 standard screws you can finally completely remove the PCB from the assembly.

Pay attention to the before mentioned cogwheel. It will also fall out.

Additionally there are two plastic pins which transfer button pushes from to the PCB. More for that to come when looking at the PCBs.