A failure diagnosis apparatus for diagnosing a failure in an evaporative fuel processing system is disclosed. The optical thin sheet has an optical property with respect to a haze of no less than 98% and is particularly suitable for use in flat displays. A first set of three-phase windings has a first winding, second winding, and a third winding. An automatic self-trimming of a wireless transmission system in a hearing apparatus and in particular in a hearing device is thus possible. Then starting from said second start recording unit rather than from said first start recording unit, write said digital data onto said information recording medium, wherein there are at least a plurality of recording units between said second start recording unit and said first start recording unit.