A receiver includes; a recovery circuit for receiving an input signal, and generating a data signal and a recovery clock; a processing circuit for processing the data signal to generate a processed signal; and a synchronization determining circuit for determining a synchronization state of the recovery clock according to the processed signal and a first reference value. Each ring is soldered to both the substrate and the device and held in place during manufacture by way of a flexible non-conductive film in which H-shaped cutouts are formed and into which a conductive ring is inserted. The shredder mechanism is positioned so that shredded waste falls into the primary waste container.