Roland Aproll MDX-540S User Manual page 35

For the MDX-540SA and MDX-540A (ATC-equipped Models)
Remove the retaining screw and rubber bushing for the magazine cover.
Remove the screw.
Gently open the magazine cover and remove the rubber bushing.
Gently close the magazine cover.
Magazine cover
Chapter 2 Emplacement and Installation
2-2 Installation
Rubber
bushing
Screw
33