Schematics - Arduino Uno SMD Rn

  • Do the Arduino_Uno_Rev3-schematics apply to the Arduino_Uno_SMD Edition R2 pcb?
  • In the Arduino_Uno_Rev3-schematics, what is "L13"? The designator is just above and to the right of U5B above one of the nets. I did not see this in Rev2.

Thank you in advance, Bob.

L13 is a label of the net that drives the pin 13 LED; it's not actually a component.
Rev3 uses the spare comparator as an LED driver; in prior versions the LED was driven directly from an IO pin.