Hello, while I can confirm that the bigger black with two pins is a diode, I'm not sure what kind of diode it is, as it could be bipolar, Schottky or Zener.
About the smaller black components with three pins, they could be transistor or diodes (single or double, with common cathode, common anode or series). I will try to find a correspondence for the markings, but symbols are someone strange, so a clear macro picture would be better... Andrea
