  We consider radiative and pionic decays of the new D_s-mesons in the
framework of a phenomenologically motivated approach. Present data on ratios of
the two kinds of decays can be described without explicit using a 4-quark
component. Most probably, the isospin violation in decays of different
D_s-mesons is not universal, and the binding potential should be different from
Coulombic. New precise measurements may provide further clarification for the
nature of the D_s excited states.
