[Ron Ramirez]

Yes, you will have to remove that assembly to get to the rubber-covered wiring, capacitors and resistors buried underneath. It's not that difficult to do, however. You just have to be careful. Often you can just remove the screws holding the coils and trimmer caps to the back of the chassis, and fold the assemblies up toward the front and out of the way. Be careful not to damage any wires, however.