3 - 60 S-100 • S-105 • S-120 • S-125 Part No. 1268494March 2017Section 3 • Repair Procedures7 Locate the ECM circuit board mounted to theinside of the platform control box.Electrocution/burn hazard. Contactwith electrically charged circuitscould result in death or seriousinjury. Remove all rings, watchesand other jewelry.Component damage hazard.Electrostatic discharge (ESD)can damage printed circuit boardcomponents. Maintain firm contactwith a metal part of the machinethat is grounded at all times whenhandling printed circuit boards ORuse a grounded wrist strap.8 Remove the ECM circuit board mountingfasteners.9 Carefully remove the ECM circuit board fromthe platform control box.7-2Membrane DecalThe membrane decal is a special decal thatconsists of a decal with an electronic membraneon the backside. The membrane contains touchsensitive areas that, when pushed, activates themachine functions. The membrane buttons activatemachine functions similar to toggle switches, butdo not have any moving parts.How to Replace the MembraneDecal1 Turn the key switch at the ground controls tothe off position.2 Push in the Emergency Stop button to theoff position at both the ground and platformcontrols.3 Remove the ground control box lid fasteners.Open the control box lid.4 Carefully disconnect the two ribbon cables fromthe membrane decal at the ECM circuit board.Electrocution/burn hazard. Contactwith electrically charged circuitscould result in death or seriousinjury. Remove all rings, watchesand other jewelry.Component damage hazard.Electrostatic discharge (ESD)can damage printed circuit boardcomponents. Maintain firm contactwith a metal part of the machinethat is grounded at all times whenhandling printed circuit boards ORuse a grounded wrist strap.GROUND CONTROLS
