Merci guys.
There's something odd about this board, when I take a look at all the pictures of this board I could find, I can see that these R612 and 613 resistors are always 10 ohms, but on this schematics (looks like it's the right one, as there is the F2700 board wich is not on the f2648) the value is 2.2 ohms instead...
Anyway, I'm gonna change these burned diodes, and tell you in a few days if the unit is fixed
There's something odd about this board, when I take a look at all the pictures of this board I could find, I can see that these R612 and 613 resistors are always 10 ohms, but on this schematics (looks like it's the right one, as there is the F2700 board wich is not on the f2648) the value is 2.2 ohms instead...
Anyway, I'm gonna change these burned diodes, and tell you in a few days if the unit is fixed