Imac G3 Speaker Replacement Dissassembly Begin by flipping the unit upside down, as depicted in figure 1. Remove the plastic cover located at the rear of the unit, by using a flat head screwdriver, or similar prying utensil. Remove the 2 outermost long screws located under this cover, as well as the 2 short screw located at the front of the unit, closest to the monitor. This is detailed in figure 2 and 3 respectively. Continue, by lifting...