– 8 –ELECTROSTATICALLY SENSITIVE DEVICESMany solid-state devices (especially Integrated Circuits) are Electrostatically Sensitive,and, therefore, require special handling techniques as described under “ServicingElectrostatically Sensitive Devices,” on page two in this service literature.MECHANICAL DISASSEMBLY (Continued)BUTTON UNITED REMOVALRemove 2 screws (B:3x10) to take the button unit off.MOUNTING WALL REMOVALRemove 2 screws (G) to take the mounting wall off.ATTENTION – Confirm Mounting wall wire is installedwhen you install the back cabinet.