A new approach is given for the solid-liquid transition at the melting temperature for a family of well known binary eutectic alloys, problem which has been introduced in a preceding paper in 2020. In a first time, a mechanism is described for the beginning of the melting process, with the role played by the interfaces between the two lattices. A second question concerns the vibration frequencies of atoms at that time for the two components in relation with the self diffusion constants. At the end, it is proposed an orderdisorder model by damped oscillations of the entropy before the final stabilized amorphous liquid state.