I have the same problem on a almost completely new box.
I also took it apart and found capacitor c221 which is in paralell with d202 to only be connected in one leg.
That is really strange if I even did a short circuit for a long time but this was a fraction of a second it should NOT melt the soldering.

Anyone that could confirm that this capacitor is soldered on a working box?
It is on the underside close to the led's.