Are there still parts and manuals available for the Panasonic 700 Watt Microwave/Convection oven model #NE-9910P? Trying to identify component. Plastic encased carbon with black and yellow wires. Black lead goes to the door switch. The yellow wire goes to a wire nut junction with three wires, one orange, one solid white and one white with black stripes. Anyone know what this part is and is there a replacement part?