A system and method for compensating for misalignment of a sensing surface of an absolute position input sensor is provided. Shaped bodies obtainable by the process, especially light waveguides, have a low tendency to yellowing under thermal stress, coupled with a low haze, and also a stable and high transparency. The power control unit includes an input power unit, an energy recovery pump, a bulk capacitor and a lamp driver including a half-bridge power stage and a half-bridge driver. Various ratchets that can lock against the teeth as a function of the relative position of a transmission crown on which they are articulated with respect to the drive cylinder. The sensing circuit has an amplifier having a feedback loop, such that the impedance being sensed is in the feedback loop. Airtight container is externally attached to insulating holder having a square plate-like shape that includes penetration hole at one or a plurality of position.