Collection of subsequent changes from the vector-schematics.

• 16.Mai 2013 : in both versions has C303, and R301, wrong values:
  (before 470uF + 27 Ohm)) → correct is C303, = 22uF and R301, = 1 Ohm / 1Watt
• 27.Sept 2015 : in both versions has U15A, wrong values:
  (before: MC34182/TL062) → correct is LF353 / TL082

• vector-schematics